1
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Ip CIJ, Gao Q, Nguyen KD, Yan C, Yan G, Hoenig E, Marchese TS, Zhang M, Lee W, Rokni H, Meng YS, Liu C, Yang S. Preservation of Topological Surface States in Millimeter-Scale Transferred Membranes. Nano Lett 2024. [PMID: 38758657 DOI: 10.1021/acs.nanolett.4c00008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2024]
Abstract
Ultrathin topological insulator membranes are building blocks of exotic quantum matter. However, traditional epitaxy of these materials does not facilitate stacking in arbitrary orders, while mechanical exfoliation from bulk crystals is also challenging due to the non-negligible interlayer coupling therein. Here we liberate millimeter-scale films of the topological insulator Bi2Se3, grown by molecular beam epitaxy, down to 3 quintuple layers. We characterize the preservation of the topological surface states and quantum well states in transferred Bi2Se3 films using angle-resolved photoemission spectroscopy. Leveraging the photon-energy-dependent surface sensitivity, the photoemission spectra taken with 6 and 21.2 eV photons reveal a transfer-induced migration of the topological surface states from the top to the inner layers. By establishing clear electronic structures of the transferred films and unveiling the wave function relocation of the topological surface states, our work lays the physics foundation crucial for the future fabrication of artificially stacked topological materials with single-layer precision.
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Affiliation(s)
- Chi Ian Jess Ip
- Pritzker School of Molecular Engineering, University of Chicago, Chicago, Illinois 60637, United States
| | - Qiang Gao
- Pritzker School of Molecular Engineering, University of Chicago, Chicago, Illinois 60637, United States
| | - Khanh Duy Nguyen
- Pritzker School of Molecular Engineering, University of Chicago, Chicago, Illinois 60637, United States
| | - Chenhui Yan
- Pritzker School of Molecular Engineering, University of Chicago, Chicago, Illinois 60637, United States
| | - Gangbin Yan
- Pritzker School of Molecular Engineering, University of Chicago, Chicago, Illinois 60637, United States
| | - Eli Hoenig
- Pritzker School of Molecular Engineering, University of Chicago, Chicago, Illinois 60637, United States
| | - Thomas S Marchese
- Pritzker School of Molecular Engineering, University of Chicago, Chicago, Illinois 60637, United States
| | - Minghao Zhang
- Department of NanoEngineering, University of California San Diego, La Jolla, California 92093, United States
| | - Woojoo Lee
- Pritzker School of Molecular Engineering, University of Chicago, Chicago, Illinois 60637, United States
| | - Hossein Rokni
- Pritzker School of Molecular Engineering, University of Chicago, Chicago, Illinois 60637, United States
| | - Ying Shirley Meng
- Pritzker School of Molecular Engineering, University of Chicago, Chicago, Illinois 60637, United States
- Department of NanoEngineering, University of California San Diego, La Jolla, California 92093, United States
| | - Chong Liu
- Pritzker School of Molecular Engineering, University of Chicago, Chicago, Illinois 60637, United States
| | - Shuolong Yang
- Pritzker School of Molecular Engineering, University of Chicago, Chicago, Illinois 60637, United States
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2
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Ham SY, Sebti E, Cronk A, Pennebaker T, Deysher G, Chen YT, Oh JAS, Lee JB, Song MS, Ridley P, Tan DHS, Clément RJ, Jang J, Meng YS. Overcoming low initial coulombic efficiencies of Si anodes through prelithiation in all-solid-state batteries. Nat Commun 2024; 15:2991. [PMID: 38582753 PMCID: PMC10998844 DOI: 10.1038/s41467-024-47352-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Accepted: 03/25/2024] [Indexed: 04/08/2024] Open
Abstract
All-solid-state batteries using Si as the anode have shown promising performance without continual solid-electrolyte interface (SEI) growth. However, the first cycle irreversible capacity loss yields low initial Coulombic efficiency (ICE) of Si, limiting the energy density. To address this, we adopt a prelithiation strategy to increase ICE and conductivity of all-solid-state Si cells. A significant increase in ICE is observed for Li1Si anode paired with a lithium cobalt oxide (LCO) cathode. Additionally, a comparison with lithium nickel manganese cobalt oxide (NCM) reveals that performance improvements with Si prelithiation is only applicable for full cells dominated by high anode irreversibility. With this prelithiation strategy, 15% improvement in capacity retention is achieved after 1000 cycles compared to a pure Si. With Li1Si, a high areal capacity of up to 10 mAh cm-2 is attained using a dry-processed LCO cathode film, suggesting that the prelithiation method may be suitable for high-loading next-generation all-solid-state batteries.
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Affiliation(s)
- So-Yeon Ham
- Materials Science and Engineering Program, University of California San Diego, La Jolla, CA, 92093, USA
| | - Elias Sebti
- Materials Department and Materials Research Laboratory, University of California, Santa Barbara, CA, 93106, USA
| | - Ashley Cronk
- Materials Science and Engineering Program, University of California San Diego, La Jolla, CA, 92093, USA
| | - Tyler Pennebaker
- Materials Department and Materials Research Laboratory, University of California, Santa Barbara, CA, 93106, USA
| | - Grayson Deysher
- Materials Science and Engineering Program, University of California San Diego, La Jolla, CA, 92093, USA
| | - Yu-Ting Chen
- Materials Science and Engineering Program, University of California San Diego, La Jolla, CA, 92093, USA
| | - Jin An Sam Oh
- Insitute of Materials, Research, and Engineering, Agency of Science, Technology, and Research (A*STAR), Singapore, Singapore
| | - Jeong Beom Lee
- LG Energy Solution. Ltd., LG Science Park, Magokjungang 10-ro, Gangseo-gu, Seoul, 07796, Korea
| | - Min Sang Song
- LG Energy Solution. Ltd., LG Science Park, Magokjungang 10-ro, Gangseo-gu, Seoul, 07796, Korea
| | - Phillip Ridley
- Department of NanoEngineering, University of California San Diego, La Jolla, CA, 92093, USA
| | - Darren H S Tan
- Department of NanoEngineering, University of California San Diego, La Jolla, CA, 92093, USA
| | - Raphaële J Clément
- Materials Department and Materials Research Laboratory, University of California, Santa Barbara, CA, 93106, USA
| | - Jihyun Jang
- Department of NanoEngineering, University of California San Diego, La Jolla, CA, 92093, USA.
- Department of Chemistry, Sogang University, Seoul, 04107, Republic of Korea.
| | - Ying Shirley Meng
- Department of NanoEngineering, University of California San Diego, La Jolla, CA, 92093, USA.
- Pritzker School of Molecular Engineering, University of Chicago, Chicago, IL, 60637, USA.
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3
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Cheng D, Wynn T, Lu B, Marple M, Han B, Shimizu R, Sreenarayanan B, Bickel J, Hosemann P, Yang Y, Nguyen H, Li W, Zhu G, Zhang M, Meng YS. A free-standing lithium phosphorus oxynitride thin film electrolyte promotes uniformly dense lithium metal deposition with no external pressure. Nat Nanotechnol 2023; 18:1448-1455. [PMID: 37537275 DOI: 10.1038/s41565-023-01478-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Accepted: 07/04/2023] [Indexed: 08/05/2023]
Abstract
Lithium phosphorus oxynitride (LiPON) is an amorphous solid electrolyte that has been extensively studied over the last three decades. Despite the promise of pairing it with various electrode materials, LiPON's rigidity and air sensitivity set limitations to understanding its intrinsic properties. Here we report a methodology to synthesize LiPON in a free-standing form that manifests remarkable flexibility and a Young's modulus of ∼33 GPa. We use solid-state nuclear magnetic resonance and differential scanning calorimetry to quantitatively reveal the chemistry of the Li/LiPON interface and the presence of a well-defined LiPON glass-transition temperature of 207 °C. Combining interfacial stress and a gold seeding layer, our free-standing LiPON shows a uniformly dense deposition of lithium metal without the aid of external pressure. This free-standing LiPON film offers opportunities to study fundamental properties of LiPON for interface engineering for solid-state batteries.
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Affiliation(s)
- Diyi Cheng
- Materials Science and Engineering Program, University of California San Diego, La Jolla, CA, USA
| | - Thomas Wynn
- Materials Science and Engineering Program, University of California San Diego, La Jolla, CA, USA
| | - Bingyu Lu
- Department of NanoEngineering, University of California San Diego, La Jolla, CA, USA
| | - Maxwell Marple
- Physical and Life Science Directorate, Lawrence Livermore National Laboratory, Livermore, CA, USA
| | - Bing Han
- Department of NanoEngineering, University of California San Diego, La Jolla, CA, USA
| | - Ryosuke Shimizu
- Department of NanoEngineering, University of California San Diego, La Jolla, CA, USA
| | - Bhagath Sreenarayanan
- Department of NanoEngineering, University of California San Diego, La Jolla, CA, USA
| | - Jeffery Bickel
- Nuclear Engineering Department, University of California Berkeley, Berkeley, CA, USA
| | - Peter Hosemann
- Nuclear Engineering Department, University of California Berkeley, Berkeley, CA, USA
| | - Yangyuchen Yang
- Materials Science and Engineering Program, University of California San Diego, La Jolla, CA, USA
| | - Han Nguyen
- Department of NanoEngineering, University of California San Diego, La Jolla, CA, USA
| | - Weikang Li
- Department of NanoEngineering, University of California San Diego, La Jolla, CA, USA
| | - Guomin Zhu
- Department of NanoEngineering, University of California San Diego, La Jolla, CA, USA
| | - Minghao Zhang
- Department of NanoEngineering, University of California San Diego, La Jolla, CA, USA.
| | - Ying Shirley Meng
- Materials Science and Engineering Program, University of California San Diego, La Jolla, CA, USA.
- Department of NanoEngineering, University of California San Diego, La Jolla, CA, USA.
- Pritzker School of Molecular Engineering, University of Chicago, Chicago, IL, USA.
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4
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Holoubek J, Liu H, Yan Q, Wu Z, Qiu B, Zhang M, Yu S, Wang S, Zhou J, Pascal TA, Luo J, Liu Z, Meng YS, Liu P. Locally Saturated Ether-Based Electrolytes With Oxidative Stability For Li Metal Batteries Based on Li-Rich Cathodes. ACS Appl Mater Interfaces 2023; 15:45764-45773. [PMID: 37726198 DOI: 10.1021/acsami.3c07224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/21/2023]
Abstract
Li metal batteries applying Li-rich, Mn-rich (LMR) layered oxide cathodes present an opportunity to achieve high-energy density at reduced cell cost. However, the intense oxidizing and reducing potentials associated with LMR cathodes and Li anodes present considerable design challenges for prospective electrolytes. Herein, we demonstrate that, somewhat surprisingly, a properly designed localized-high-concentration electrolyte (LHCE) based on ether solvents is capable of providing reversible performance for Li||LMR cells. Specifically, the oxidative stability of the LHCE was found to heavily rely on the ratio between salt and solvating solvent, where local-saturation was necessary to stabilize performance. Through molecular dynamics (MD) simulations, this behavior was found to be a result of aggregated solvation structures of Li+/anion pairs. This LHCE system was found to produce significantly improved LMR cycling (95.8% capacity retention after 100 cycles) relative to a carbonate control as a result of improved cathode-electrolyte interphase (CEI) chemistry from X-ray photoelectron spectroscopy (XPS), and cryogenic transmission electron microscopy (cryo-TEM). Leveraging this stability, 4 mAh cm-2 LMR||2× Li full cells were demonstrated, retaining 87% capacity after 80 cycles in LHCE, whereas the control electrolyte produced rapid failure. This work uncovers the benefits, design requirements, and performance origins of LHCE electrolytes for high-voltage Li||LMR batteries.
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Affiliation(s)
- John Holoubek
- Department of NanoEngineering, University of California San Diego, 9500 Gilman Drive, La Jolla, California 92093, United States
| | - Haodong Liu
- Department of NanoEngineering, University of California San Diego, 9500 Gilman Drive, La Jolla, California 92093, United States
| | - Qizhang Yan
- Department of NanoEngineering, University of California San Diego, 9500 Gilman Drive, La Jolla, California 92093, United States
| | - Zhaohui Wu
- Department of NanoEngineering, University of California San Diego, 9500 Gilman Drive, La Jolla, California 92093, United States
| | - Bao Qiu
- Ningbo Institute of Materials Technology and Engineering (NIMTE), Chinese Academy of Sciences, Zhejiang 315201, China
| | - Minghao Zhang
- Department of NanoEngineering, University of California San Diego, 9500 Gilman Drive, La Jolla, California 92093, United States
| | - Sicen Yu
- Department of NanoEngineering, University of California San Diego, 9500 Gilman Drive, La Jolla, California 92093, United States
| | - Shen Wang
- Department of NanoEngineering, University of California San Diego, 9500 Gilman Drive, La Jolla, California 92093, United States
| | - Jianbin Zhou
- Department of NanoEngineering, University of California San Diego, 9500 Gilman Drive, La Jolla, California 92093, United States
| | - Tod A Pascal
- Department of NanoEngineering, University of California San Diego, 9500 Gilman Drive, La Jolla, California 92093, United States
| | - Jian Luo
- Department of NanoEngineering, University of California San Diego, 9500 Gilman Drive, La Jolla, California 92093, United States
| | - Zhaoping Liu
- Ningbo Institute of Materials Technology and Engineering (NIMTE), Chinese Academy of Sciences, Zhejiang 315201, China
| | - Ying Shirley Meng
- Department of NanoEngineering, University of California San Diego, 9500 Gilman Drive, La Jolla, California 92093, United States
| | - Ping Liu
- Department of NanoEngineering, University of California San Diego, 9500 Gilman Drive, La Jolla, California 92093, United States
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5
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Cai G, Chen AA, Lin S, Lee DJ, Yu K, Holoubek J, Yin Y, Mu AU, Meng YS, Liu P, Cohen SM, Pascal TA, Chen Z. Unravelling Ultrafast Li Ion Transport in Functionalized Metal-Organic Framework-Based Battery Electrolytes. Nano Lett 2023; 23:7062-7069. [PMID: 37522917 DOI: 10.1021/acs.nanolett.3c01825] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/01/2023]
Abstract
Nonaqueous fluidic transport and ion solvation properties under nanoscale confinement are poorly understood, especially in ion conduction for energy storage and conversion systems. Herein, metal-organic frameworks (MOFs) and aprotic electrolytes are studied as a robust platform for molecular-level insights into electrolyte behaviors in confined spaces. By employing computer simulations, along with spectroscopic and electrochemical measurements, we demonstrate several phenomena that deviate from the bulk, including modulated solvent molecular configurations, aggregated solvation structures, and tunable transport mechanisms from quasi-solid to quasi-liquid in functionalized MOFs. Technologically, taking advantage of confinement effects may prove useful for addressing stability concerns associated with volatile organic electrolytes while simultaneously endowing ultrafast transport of solvates, resulting in improved battery performance, even at extreme temperatures. The molecular-level insights presented here further our understanding of structure-property relationships of complex fluids at the nanoscale, information that can be exploited for the predictive design of more efficient electrochemical systems.
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Affiliation(s)
- Guorui Cai
- Department of Nano and Chemical Engineering, University of California, San Diego, La Jolla, California 92093, United States
| | - Amanda A Chen
- Department of Nano and Chemical Engineering, University of California, San Diego, La Jolla, California 92093, United States
| | - Sharon Lin
- Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, California 92093, United States
| | - Dong Ju Lee
- Department of Nano and Chemical Engineering, University of California, San Diego, La Jolla, California 92093, United States
| | - Kunpeng Yu
- Department of Nano and Chemical Engineering, University of California, San Diego, La Jolla, California 92093, United States
| | - John Holoubek
- Department of Nano and Chemical Engineering, University of California, San Diego, La Jolla, California 92093, United States
| | - Yijie Yin
- Program of Materials Science and Engineering, University of California, San Diego, La Jolla, California 92093, United States
| | - Anthony U Mu
- Department of Nano and Chemical Engineering, University of California, San Diego, La Jolla, California 92093, United States
| | - Ying Shirley Meng
- Department of Nano and Chemical Engineering, University of California, San Diego, La Jolla, California 92093, United States
- Pritzker School of Molecular Engineering, University of Chicago, Chicago, Illinois 60637, United States
| | - Ping Liu
- Department of Nano and Chemical Engineering, University of California, San Diego, La Jolla, California 92093, United States
- Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, California 92093, United States
- Program of Materials Science and Engineering, University of California, San Diego, La Jolla, California 92093, United States
- Sustainable Power and Energy Center, University of California, San Diego, La Jolla, California 92093, United States
| | - Seth M Cohen
- Department of Nano and Chemical Engineering, University of California, San Diego, La Jolla, California 92093, United States
- Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, California 92093, United States
| | - Tod A Pascal
- Department of Nano and Chemical Engineering, University of California, San Diego, La Jolla, California 92093, United States
- Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, California 92093, United States
- Program of Materials Science and Engineering, University of California, San Diego, La Jolla, California 92093, United States
- Sustainable Power and Energy Center, University of California, San Diego, La Jolla, California 92093, United States
| | - Zheng Chen
- Department of Nano and Chemical Engineering, University of California, San Diego, La Jolla, California 92093, United States
- Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, California 92093, United States
- Program of Materials Science and Engineering, University of California, San Diego, La Jolla, California 92093, United States
- Sustainable Power and Energy Center, University of California, San Diego, La Jolla, California 92093, United States
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6
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Kwon H, Choi HJ, Jang JK, Lee J, Jung J, Lee W, Roh Y, Baek J, Shin DJ, Lee JH, Choi NS, Meng YS, Kim HT. Weakly coordinated Li ion in single-ion-conductor-based composite enabling low electrolyte content Li-metal batteries. Nat Commun 2023; 14:4047. [PMID: 37422498 DOI: 10.1038/s41467-023-39673-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Accepted: 06/23/2023] [Indexed: 07/10/2023] Open
Abstract
The pulverization of lithium metal electrodes during cycling recently has been suppressed through various techniques, but the issue of irreversible consumption of the electrolyte remains a critical challenge, hindering the progress of energy-dense lithium metal batteries. Here, we design a single-ion-conductor-based composite layer on the lithium metal electrode, which significantly reduces the liquid electrolyte loss via adjusting the solvation environment of moving Li+ in the layer. A Li||Ni0.5Mn0.3Co0.2O2 pouch cell with a thin lithium metal (N/P of 2.15), high loading cathode (21.5 mg cm-2), and carbonate electrolyte achieves 400 cycles at the electrolyte to capacity ratio of 2.15 g Ah-1 (2.44 g Ah-1 including mass of composite layer) or 100 cycles at 1.28 g Ah-1 (1.57 g Ah-1 including mass of composite layer) under a stack pressure of 280 kPa (0.2 C charge with a constant voltage charge at 4.3 V to 0.05 C and 1.0 C discharge within a voltage window of 4.3 V to 3.0 V). The rational design of the single-ion-conductor-based composite layer demonstrated in this work provides a way forward for constructing energy-dense rechargeable lithium metal batteries with minimal electrolyte content.
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Affiliation(s)
- Hyeokjin Kwon
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Republic of Korea
| | - Hyun-Ji Choi
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Republic of Korea
| | - Jung-Kyu Jang
- Energy Materials Research Center, Korea Research Institute of Chemical Technology (KRICT), Daejeon, Republic of Korea
| | - Jinhong Lee
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Republic of Korea
| | - Jinkwan Jung
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Republic of Korea
| | - Wonjun Lee
- Department of Energy Engineering, School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, Republic of Korea
| | - Youngil Roh
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Republic of Korea
| | - Jaewon Baek
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Republic of Korea
| | - Dong Jae Shin
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Republic of Korea
| | - Ju-Hyuk Lee
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Republic of Korea
| | - Nam-Soon Choi
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Republic of Korea.
| | - Ying Shirley Meng
- Department of NanoEngineering, University of California at San Diego, San Diego, 92093, CA, USA.
- Pritzker School of Molecular Engineering, University of Chicago, Chicago, IL, USA.
| | - Hee-Tak Kim
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Republic of Korea.
- Advanced Battery Center, KAIST Institute for the NanoCentury, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Republic of Korea.
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7
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Zuo C, Yang KL, Li ZC, Gu YM, Diao YZ, Meng XB, Meng YS, Zhang K. ["Double Grooves-Double Rings" technique of transurethral Thulium laser enucleation of the prostate: learning curve of single surgeon]. Zhonghua Yi Xue Za Zhi 2023; 103:1563-1567. [PMID: 37246007 DOI: 10.3760/cma.j.cn112137-20230212-00198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Objective: To evaluate the learning curve of the "Double Grooves-Double Rings" (DGDR) technique of transurethral Thulium laser enucleation of the prostate (ThuLEP) for benign prostatic hyperplasia (BPH) by a single surgeon. From June 2021 to July 2022, 84 patients mean age (69.0±8.0) years,preoperative prostate volume (90.9±40.3)ml with BPH underwent ThuLEP in the Department of Urology, Peking University First Hospital.Performed by a single surgeon who had no experience of transurethral resection of prostate (TURP) and any laser surgeries. The case scatter plots with the best fitting line were drawn to analyze the learning curve. According to the date of the surgeries, the patients were equally divided into three learning stages (28 patients for each group). The T-PSA,prostate volume,operative time,enucleation time, enucleation efficiency,catheter indwelling time, hemoglobin drop and perioperative complications (including re-TURP, blood transfusion, stress incontinence≥3 months and urethral stricture) were compared among the groups. The learning curve was divided into three stages, and the cutting point was shown on the 14th case. Except the prostate volume [stage1 (75.7±30.7) ml, stage2 (93.40±39.6)ml, stage3 (103.5±46.2) ml, P<0.05], there was no significant difference of the baseline data between three groups (P>0.05). Compared with those of stage 1(100.6±24.7) min,(0.55±0.22) g/min, a statistically significant improvement was observed in both of the operative time and the enucleation efficiency among stage 2[(84.5±36.6) min, (0.87±0.33) g/min and stage 3 (71.2±26.3) min, (1.27±0.45) g/min, P<0.05]. The learning curve of the DGDR technique for ThuLEP can be divided into three stages. A ThuLEP beginner can preliminarily master this technique after completing 14 cases.
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Affiliation(s)
- C Zuo
- Department of Urology,Peking University First Hospital,Beijing 100034,China Department of Urology, Beijing Miyun District Hospital,Beijing 101500,China
| | - K L Yang
- Department of Urology,Peking University First Hospital,Beijing 100034,China
| | - Z C Li
- Department of Urology,Peking University First Hospital,Beijing 100034,China
| | - Y M Gu
- Department of Urology, Beijing Miyun District Hospital,Beijing 101500,China
| | - Y Z Diao
- Department of Urology, Beijing Miyun District Hospital,Beijing 101500,China
| | - X B Meng
- Department of Urology, Beijing Miyun District Hospital,Beijing 101500,China
| | - Y S Meng
- Department of Urology,Peking University First Hospital,Beijing 100034,China
| | - K Zhang
- Department of Urology,Peking University First Hospital,Beijing 100034,China
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8
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Wang S, Lu B, Cheng D, Wu Z, Feng S, Zhang M, Li W, Miao Q, Patel M, Feng J, Hopkins E, Zhou J, Parab S, Bhamwala B, Liaw B, Meng YS, Liu P. Structural Transformation in a Sulfurized Polymer Cathode to Enable Long-Life Rechargeable Lithium-Sulfur Batteries. J Am Chem Soc 2023; 145:9624-9633. [PMID: 37071778 DOI: 10.1021/jacs.3c00628] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/20/2023]
Abstract
Sulfurized polyacrylonitrile (SPAN) represents a class of sulfur-bonded polymers, which have shown thousands of stable cycles as a cathode in lithium-sulfur batteries. However, the exact molecular structure and its electrochemical reaction mechanism remain unclear. Most significantly, SPAN shows an over 25% 1st cycle irreversible capacity loss before exhibiting perfect reversibility for subsequent cycles. Here, with a SPAN thin-film platform and an array of analytical tools, we show that the SPAN capacity loss is associated with intramolecular dehydrogenation along with the loss of sulfur. This results in an increase in the aromaticity of the structure, which is corroborated by a >100× increase in electronic conductivity. We also discovered that the conductive carbon additive in the cathode is instrumental in driving the reaction to completion. Based on the proposed mechanism, we have developed a synthesis procedure to eliminate more than 50% of the irreversible capacity loss. Our insights into the reaction mechanism provide a blueprint for the design of high-performance sulfurized polymer cathode materials.
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Affiliation(s)
- Shen Wang
- Department of Nanoengineering, University of California, San Diego, La Jolla, California 92093, United States
| | - Bingyu Lu
- Department of Nanoengineering, University of California, San Diego, La Jolla, California 92093, United States
| | - Diyi Cheng
- Department of Nanoengineering, University of California, San Diego, La Jolla, California 92093, United States
| | - Zhaohui Wu
- Department of Nanoengineering, University of California, San Diego, La Jolla, California 92093, United States
| | - Shijie Feng
- Materials Science and Engineering Program, University of California, San Diego, La Jolla, California 92093, United States
| | - Minghao Zhang
- Department of Nanoengineering, University of California, San Diego, La Jolla, California 92093, United States
| | - Weikang Li
- Department of Nanoengineering, University of California, San Diego, La Jolla, California 92093, United States
| | - Qiushi Miao
- Materials Science and Engineering Program, University of California, San Diego, La Jolla, California 92093, United States
| | - Maansi Patel
- Department of Nanoengineering, University of California, San Diego, La Jolla, California 92093, United States
| | - Jiaqi Feng
- Department of Nanoengineering, University of California, San Diego, La Jolla, California 92093, United States
| | - Emma Hopkins
- Department of Nanoengineering, University of California, San Diego, La Jolla, California 92093, United States
| | - Jianbin Zhou
- Department of Nanoengineering, University of California, San Diego, La Jolla, California 92093, United States
| | - Saurabh Parab
- Materials Science and Engineering Program, University of California, San Diego, La Jolla, California 92093, United States
| | - Bhargav Bhamwala
- Department of Nanoengineering, University of California, San Diego, La Jolla, California 92093, United States
| | - Boryann Liaw
- Energy and Environmental Science and Technology Directorate, Idaho National Laboratory, Idaho Falls, Idaho 83415, United States
| | - Ying Shirley Meng
- Department of Nanoengineering, University of California, San Diego, La Jolla, California 92093, United States
- Materials Science and Engineering Program, University of California, San Diego, La Jolla, California 92093, United States
- Pritzker School of Molecular Engineering, University of Chicago, Chicago, Illinois 60637, United States
| | - Ping Liu
- Department of Nanoengineering, University of California, San Diego, La Jolla, California 92093, United States
- Materials Science and Engineering Program, University of California, San Diego, La Jolla, California 92093, United States
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9
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Deysher G, Chen YT, Sayahpour B, Lin SWH, Ham SY, Ridley P, Cronk A, Wu EA, Tan DHS, Doux JM, Oh JAS, Jang J, Nguyen LHB, Meng YS. Evaluating Electrolyte-Anode Interface Stability in Sodium All-Solid-State Batteries. ACS Appl Mater Interfaces 2022; 14:47706-47715. [PMID: 36239697 PMCID: PMC9614718 DOI: 10.1021/acsami.2c12759] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/17/2022] [Accepted: 09/30/2022] [Indexed: 06/16/2023]
Abstract
All-solid-state batteries have recently gained considerable attention due to their potential improvements in safety, energy density, and cycle-life compared to conventional liquid electrolyte batteries. Sodium all-solid-state batteries also offer the potential to eliminate costly materials containing lithium, nickel, and cobalt, making them ideal for emerging grid energy storage applications. However, significant work is required to understand the persisting limitations and long-term cyclability of Na all-solid-state-based batteries. In this work, we demonstrate the importance of careful solid electrolyte selection for use against an alloy anode in Na all-solid-state batteries. Three emerging solid electrolyte material classes were chosen for this study: the chloride Na2.25Y0.25Zr0.75Cl6, sulfide Na3PS4, and borohydride Na2(B10H10)0.5(B12H12)0.5. Focused ion beam scanning electron microscopy (FIB-SEM) imaging, X-ray photoelectron spectroscopy (XPS), and electrochemical impedance spectroscopy (EIS) were utilized to characterize the evolution of the anode-electrolyte interface upon electrochemical cycling. The obtained results revealed that the interface stability is determined by both the intrinsic electrochemical stability of the solid electrolyte and the passivating properties of the formed interfacial products. With appropriate material selection for stability at the respective anode and cathode interfaces, stable cycling performance can be achieved for Na all-solid-state batteries.
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Affiliation(s)
- Grayson Deysher
- Program
of Materials Science and Engineering, University
of California San Diego, La Jolla, California92093, United States
| | - Yu-Ting Chen
- Program
of Materials Science and Engineering, University
of California San Diego, La Jolla, California92093, United States
| | - Baharak Sayahpour
- Program
of Materials Science and Engineering, University
of California San Diego, La Jolla, California92093, United States
| | - Sharon Wan-Hsuan Lin
- Department
of NanoEngineering, University of California
San Diego, La Jolla, California92093, United States
| | - So-Yeon Ham
- Program
of Materials Science and Engineering, University
of California San Diego, La Jolla, California92093, United States
| | - Phillip Ridley
- Department
of NanoEngineering, University of California
San Diego, La Jolla, California92093, United States
| | - Ashley Cronk
- Program
of Materials Science and Engineering, University
of California San Diego, La Jolla, California92093, United States
| | - Erik A. Wu
- Department
of NanoEngineering, University of California
San Diego, La Jolla, California92093, United States
| | - Darren H. S. Tan
- Department
of NanoEngineering, University of California
San Diego, La Jolla, California92093, United States
| | - Jean-Marie Doux
- Department
of NanoEngineering, University of California
San Diego, La Jolla, California92093, United States
| | - Jin An Sam Oh
- Department
of NanoEngineering, University of California
San Diego, La Jolla, California92093, United States
| | - Jihyun Jang
- Department
of NanoEngineering, University of California
San Diego, La Jolla, California92093, United States
| | - Long Hoang Bao Nguyen
- Department
of NanoEngineering, University of California
San Diego, La Jolla, California92093, United States
| | - Ying Shirley Meng
- Department
of NanoEngineering, University of California
San Diego, La Jolla, California92093, United States
- Pritzker
School of Molecular Engineering, The University
of Chicago, Chicago, Illinois60637, United States
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10
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Chen Y, Seo JK, Sun Y, Wynn TA, Olguin M, Zhang M, Wang J, Xi S, Du Y, Yuan K, Chen W, Fisher AC, Wang M, Feng Z, Gracia J, Huang L, Du S, Gao HJ, Meng YS, Xu ZJ. Enhanced oxygen evolution over dual corner-shared cobalt tetrahedra. Nat Commun 2022; 13:5510. [PMID: 36127321 PMCID: PMC9489709 DOI: 10.1038/s41467-022-33000-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Accepted: 08/25/2022] [Indexed: 11/30/2022] Open
Abstract
Developing efficient catalysts is of paramount importance to oxygen evolution, a sluggish anodic reaction that provides essential electrons and protons for various electrochemical processes, such as hydrogen generation. Here, we report that the oxygen evolution reaction (OER) can be efficiently catalyzed by cobalt tetrahedra, which are stabilized over the surface of a Swedenborgite-type YBCo4O7 material. We reveal that the surface of YBaCo4O7 possesses strong resilience towards structural amorphization during OER, which originates from its distinctive structural evolution toward electrochemical oxidation. The bulk of YBaCo4O7 composes of corner-sharing only CoO4 tetrahedra, which can flexibly alter their positions to accommodate the insertion of interstitial oxygen ions and mediate the stress during the electrochemical oxidation. The density functional theory calculations demonstrate that the OER is efficiently catalyzed by a binuclear active site of dual corner-shared cobalt tetrahedra, which have a coordination number switching between 3 and 4 during the reaction. We expect that the reported active structural motif of dual corner-shared cobalt tetrahedra in this study could enable further development of compounds for catalyzing the OER. Efficient oxygen evolution relies on the development of promising catalysts. Herein, the authors demonstrate that cobalt tetrahedra, stabilized over the surface of YBCo4O7 material, can catalyze oxygen evolution reaction efficiently.
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Affiliation(s)
- Yubo Chen
- School of Material Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore.,The Cambridge Centre for Advanced Research and Education in Singapore, 1 CREATE way, Singapore, 138602, Singapore.,Solar Fuels Laboratory, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore.,Energy Research Institute @ Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Joon Kyo Seo
- Department of Nano Engineering, University of California San Diego, 9500 Gilman Drive, La Jolla, CA, 92093, USA.,Materials Science and Engineering, University of California San Diego, 9500 Gilman Drive, La Jolla, CA, 92093, USA.,Gwangju Clean Energy Research Center, Korea Institute of Energy Research, Gwangju, 61003, Republic of Korea
| | - Yuanmiao Sun
- School of Material Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Thomas A Wynn
- Department of Nano Engineering, University of California San Diego, 9500 Gilman Drive, La Jolla, CA, 92093, USA.,Materials Science and Engineering, University of California San Diego, 9500 Gilman Drive, La Jolla, CA, 92093, USA
| | - Marco Olguin
- Department of Nano Engineering, University of California San Diego, 9500 Gilman Drive, La Jolla, CA, 92093, USA.,Materials Science and Engineering, University of California San Diego, 9500 Gilman Drive, La Jolla, CA, 92093, USA
| | - Minghao Zhang
- Department of Nano Engineering, University of California San Diego, 9500 Gilman Drive, La Jolla, CA, 92093, USA.,Materials Science and Engineering, University of California San Diego, 9500 Gilman Drive, La Jolla, CA, 92093, USA
| | - Jingxian Wang
- School of Material Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Shibo Xi
- Institute of Chemical and Engineering Sciences, A*STAR, 1 Pesek Road, Singapore, 627833, Singapore
| | - Yonghua Du
- Institute of Chemical and Engineering Sciences, A*STAR, 1 Pesek Road, Singapore, 627833, Singapore
| | - Kaidi Yuan
- Department of Physics, National University of Singapore, 2 Science Drive 3, Singapore, 117542, Singapore
| | - Wei Chen
- Department of Physics, National University of Singapore, 2 Science Drive 3, Singapore, 117542, Singapore
| | - Adrian C Fisher
- The Cambridge Centre for Advanced Research and Education in Singapore, 1 CREATE way, Singapore, 138602, Singapore.,Department of Chemical Engineering, University of Cambridge, Cambridge, CB2 3RA, UK
| | - Maoyu Wang
- School of Chemical, Biological, and Environmental Engineering, Oregon State University, Corvallis, OR, 97331, USA
| | - Zhenxing Feng
- School of Chemical, Biological, and Environmental Engineering, Oregon State University, Corvallis, OR, 97331, USA
| | - Jose Gracia
- MagnetoCat SL, General Polavieja 9 3I, Alicante, 03012, Spain
| | - Li Huang
- Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Science, Beijing, 100190, China
| | - Shixuan Du
- Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Science, Beijing, 100190, China
| | - Hong-Jun Gao
- Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Science, Beijing, 100190, China
| | - Ying Shirley Meng
- Department of Nano Engineering, University of California San Diego, 9500 Gilman Drive, La Jolla, CA, 92093, USA. .,Materials Science and Engineering, University of California San Diego, 9500 Gilman Drive, La Jolla, CA, 92093, USA. .,Pritzker School of Molecular Engineering, University of Chicago, Chicago, IL, 60637, USA.
| | - Zhichuan J Xu
- School of Material Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore. .,The Cambridge Centre for Advanced Research and Education in Singapore, 1 CREATE way, Singapore, 138602, Singapore. .,Solar Fuels Laboratory, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore. .,Energy Research Institute @ Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore.
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11
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Scharf J, Chouchane M, Finegan DP, Lu B, Redquest C, Kim MC, Yao W, Franco AA, Gostovic D, Liu Z, Riccio M, Zelenka F, Doux JM, Meng YS. Bridging nano- and microscale X-ray tomography for battery research by leveraging artificial intelligence. Nat Nanotechnol 2022; 17:446-459. [PMID: 35414116 DOI: 10.1038/s41565-022-01081-9] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Accepted: 01/20/2022] [Indexed: 06/14/2023]
Abstract
X-ray computed tomography (CT) is a non-destructive imaging technique in which contrast originates from the materials' absorption coefficient. The recent development of laboratory nanoscale CT (nano-CT) systems has pushed the spatial resolution for battery material imaging to voxel sizes of 50 nm, a limit previously achievable only with synchrotron facilities. Given the non-destructive nature of CT, in situ and operando studies have emerged as powerful methods to quantify morphological parameters, such as tortuosity factor, porosity, surface area and volume expansion, during battery operation or cycling. Combined with artificial intelligence and machine learning analysis techniques, nano-CT has enabled the development of predictive models to analyse the impact of the electrode microstructure on cell performances or the influence of material heterogeneities on electrochemical responses. In this Review, we discuss the role of X-ray CT and nano-CT experimentation in the battery field, discuss the incorporation of artificial intelligence and machine learning analyses and provide a perspective on how the combination of multiscale CT imaging techniques can expand the development of predictive multiscale battery behavioural models.
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Affiliation(s)
- Jonathan Scharf
- Department of Nano-Engineering, University of California San Diego, La Jolla, CA, USA.
| | - Mehdi Chouchane
- Laboratoire de Réactivité et Chimie des Solides (LRCS), Université de Picardie Jules Verne, UMR CNRS 7314, Hub de l'Energie, Amiens, France
- Réseau sur le Stockage Electrochimique de l'Energie (RS2E), FR CNRS 3459, Hub de l'Energie, Amiens, France
| | | | - Bingyu Lu
- Department of Nano-Engineering, University of California San Diego, La Jolla, CA, USA
| | - Christopher Redquest
- Department of Chemical Engineering, University of California San Diego, La Jolla, CA, USA
| | - Min-Cheol Kim
- Department of Nano-Engineering, University of California San Diego, La Jolla, CA, USA
| | - Weiliang Yao
- Department of Materials Science and Engineering, University of California San Diego, La Jolla, CA, USA
| | - Alejandro A Franco
- Laboratoire de Réactivité et Chimie des Solides (LRCS), Université de Picardie Jules Verne, UMR CNRS 7314, Hub de l'Energie, Amiens, France
- Réseau sur le Stockage Electrochimique de l'Energie (RS2E), FR CNRS 3459, Hub de l'Energie, Amiens, France
- Alistore-ERI European Research Institute, FR CNRS 3104, Hub de l'Energie, Amiens, France
- Institut Universitaire de France, Paris, France
| | | | - Zhao Liu
- Thermo Fisher Scientific, Waltham, MA, USA
| | | | | | - Jean-Marie Doux
- Department of Nano-Engineering, University of California San Diego, La Jolla, CA, USA.
| | - Ying Shirley Meng
- Department of Nano-Engineering, University of California San Diego, La Jolla, CA, USA.
- Sustainable Power and Energy Center (SPEC), University of California San Diego, La Jolla, CA, USA.
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12
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Cheung EA, Nguyen H, Tang H, Stampfl APJ, Avdeev M, Meng YS, Sharma N, de Souza NR. Structure and Dynamics in Mg 2+-Stabilized γ-Na 3PO 4. J Am Chem Soc 2021; 143:17079-17089. [PMID: 34610744 DOI: 10.1021/jacs.1c06905] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
In parallel with advances in the synthesis of solid-state ionic conductors, there is a need to understand the underlying mechanisms behind their improved ionic conductivities. This can be achieved by obtaining an atomic level picture of the interplay between the structure of materials and the resultant ionic diffusion processes. To this end, the structure and dynamics of Mg2+-stabilized rotor phase material γ-Na3PO4, characterized by neutron scattering, are detailed in this work. The Mg2+-stabilized rotor phase is found to be thermally stable from 4 to 650 K. However, signatures of orientational disorder of the phosphate anions are also evident in the average structure. Long-range Na+ self-diffusion was probed by quasi-elastic neutron scattering and subsequently modeled via a jump diffusion matrix with consideration of the phosphate anion rotations. The resultant diffusion model points directly to coupled anion-cation dynamics. Our approach highlights the importance of considering the whole system when developing an atomic level picture of structure and dynamics, which is critical in the rational design and optimization of energy materials.
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Affiliation(s)
- Emily A Cheung
- School of Chemistry, University of New South Wales Australia, Sydney, NSW 2052, Australia
| | - Han Nguyen
- Department of NanoEngineering, University of California, San Diego, La Jolla, California 92093, United States
| | - Hanmei Tang
- Department of NanoEngineering, University of California, San Diego, La Jolla, California 92093, United States
| | - Anton P J Stampfl
- Australian Nuclear Science and Technology Organisation, Locked Bag 2001, Kirrawee DC, NSW 2232, Australia
| | - Maxim Avdeev
- Australian Nuclear Science and Technology Organisation, Locked Bag 2001, Kirrawee DC, NSW 2232, Australia.,School of Chemistry, The University of Sydney, Sydney 2006, Australia
| | - Ying Shirley Meng
- Department of NanoEngineering, University of California, San Diego, La Jolla, California 92093, United States.,Sustainable Power & Energy Center (SPEC), University of California, San Diego, La Jolla, California 92093, United States
| | - Neeraj Sharma
- School of Chemistry, University of New South Wales Australia, Sydney, NSW 2052, Australia
| | - Nicolas R de Souza
- Australian Nuclear Science and Technology Organisation, Locked Bag 2001, Kirrawee DC, NSW 2232, Australia
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13
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Zhao E, He L, Zhang Z, Doux JM, Tan DHS, Wu EA, Deysher G, Chen YT, Zhao J, Wang F, Meng YS. New insights into Li distribution in the superionic argyrodite Li 6PS 5Cl. Chem Commun (Camb) 2021; 57:10787-10790. [PMID: 34590100 DOI: 10.1039/d1cc03083c] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
By using temperature-dependent neutron powder diffraction combined with maximum entropy method analysis, a previously unreported Li lattice site was discovered in the argyrodite Li6PS5Cl solid-state electrolyte. This new finding enables a more complete description of the Li diffusion model in argyrodites, providing structural guidance for designing novel high-conductivity solid-state electrolytes.
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Affiliation(s)
- Enyue Zhao
- Department of NanoEngineering, University of California San Diego, La Jolla, CA 92093, USA. .,Songshan Lake Materials Laboratory, Dongguan 523808, P. R. China
| | - Lunhua He
- Songshan Lake Materials Laboratory, Dongguan 523808, P. R. China.,Spallation Neutron Source Science Center, Dongguan, 523803, P. R. China
| | - Zhigang Zhang
- Songshan Lake Materials Laboratory, Dongguan 523808, P. R. China
| | - Jean-Marie Doux
- Department of NanoEngineering, University of California San Diego, La Jolla, CA 92093, USA.
| | - Darren H S Tan
- Department of NanoEngineering, University of California San Diego, La Jolla, CA 92093, USA.
| | - Erik A Wu
- Department of NanoEngineering, University of California San Diego, La Jolla, CA 92093, USA.
| | - Grayson Deysher
- Program of Materials Science and Engineering, University of California San Diego, La Jolla, CA 92093, USA
| | - Yu-Ting Chen
- Program of Materials Science and Engineering, University of California San Diego, La Jolla, CA 92093, USA
| | - Jinkui Zhao
- Songshan Lake Materials Laboratory, Dongguan 523808, P. R. China
| | - Fangwei Wang
- Songshan Lake Materials Laboratory, Dongguan 523808, P. R. China.,Spallation Neutron Source Science Center, Dongguan, 523803, P. R. China
| | - Ying Shirley Meng
- Department of NanoEngineering, University of California San Diego, La Jolla, CA 92093, USA. .,Program of Materials Science and Engineering, University of California San Diego, La Jolla, CA 92093, USA.,Sustainable Power & Energy Center (SPEC), University of California San Diego, La Jolla, CA 92093, USA
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14
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Tan DHS, Chen YT, Yang H, Bao W, Sreenarayanan B, Doux JM, Li W, Lu B, Ham SY, Sayahpour B, Scharf J, Wu EA, Deysher G, Han HE, Hah HJ, Jeong H, Lee JB, Chen Z, Meng YS. Carbon-free high-loading silicon anodes enabled by sulfide solid electrolytes. Science 2021; 373:1494-1499. [PMID: 34554780 DOI: 10.1126/science.abg7217] [Citation(s) in RCA: 110] [Impact Index Per Article: 36.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
[Figure: see text].
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Affiliation(s)
- Darren H S Tan
- Department of NanoEngineering, University of California San Diego, La Jolla, CA 92093, USA
| | - Yu-Ting Chen
- Department of NanoEngineering, University of California San Diego, La Jolla, CA 92093, USA
| | - Hedi Yang
- Department of NanoEngineering, University of California San Diego, La Jolla, CA 92093, USA
| | - Wurigumula Bao
- Department of NanoEngineering, University of California San Diego, La Jolla, CA 92093, USA
| | - Bhagath Sreenarayanan
- Department of NanoEngineering, University of California San Diego, La Jolla, CA 92093, USA
| | - Jean-Marie Doux
- Department of NanoEngineering, University of California San Diego, La Jolla, CA 92093, USA
| | - Weikang Li
- Department of NanoEngineering, University of California San Diego, La Jolla, CA 92093, USA
| | - Bingyu Lu
- Department of NanoEngineering, University of California San Diego, La Jolla, CA 92093, USA
| | - So-Yeon Ham
- Department of NanoEngineering, University of California San Diego, La Jolla, CA 92093, USA
| | - Baharak Sayahpour
- Department of NanoEngineering, University of California San Diego, La Jolla, CA 92093, USA
| | - Jonathan Scharf
- Department of NanoEngineering, University of California San Diego, La Jolla, CA 92093, USA
| | - Erik A Wu
- Department of NanoEngineering, University of California San Diego, La Jolla, CA 92093, USA
| | - Grayson Deysher
- Department of NanoEngineering, University of California San Diego, La Jolla, CA 92093, USA
| | - Hyea Eun Han
- LG Energy Solution, Ltd., LG Science Park, Magokjungang 10-ro, Gangseo-gu, Seoul 07796, Korea
| | - Hoe Jin Hah
- LG Energy Solution, Ltd., LG Science Park, Magokjungang 10-ro, Gangseo-gu, Seoul 07796, Korea
| | - Hyeri Jeong
- LG Energy Solution, Ltd., LG Science Park, Magokjungang 10-ro, Gangseo-gu, Seoul 07796, Korea
| | - Jeong Beom Lee
- LG Energy Solution, Ltd., LG Science Park, Magokjungang 10-ro, Gangseo-gu, Seoul 07796, Korea
| | - Zheng Chen
- Department of NanoEngineering, University of California San Diego, La Jolla, CA 92093, USA.,Program of Chemical Engineering, University of California San Diego, La Jolla, CA 92093, USA.,Sustainable Power and Energy Center (SPEC), University of California San Diego, La Jolla, CA 92093, USA.,Program of Materials Science and Engineering, University of California San Diego, La Jolla, CA 92093, USA
| | - Ying Shirley Meng
- Department of NanoEngineering, University of California San Diego, La Jolla, CA 92093, USA.,Sustainable Power and Energy Center (SPEC), University of California San Diego, La Jolla, CA 92093, USA.,Program of Materials Science and Engineering, University of California San Diego, La Jolla, CA 92093, USA
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15
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Cai G, Yin Y, Xia D, Chen AA, Holoubek J, Scharf J, Yang Y, Koh KH, Li M, Davies DM, Mayer M, Han TH, Meng YS, Pascal TA, Chen Z. Sub-nanometer confinement enables facile condensation of gas electrolyte for low-temperature batteries. Nat Commun 2021; 12:3395. [PMID: 34099643 PMCID: PMC8184934 DOI: 10.1038/s41467-021-23603-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Accepted: 05/05/2021] [Indexed: 12/19/2022] Open
Abstract
Confining molecules in the nanoscale environment can lead to dramatic changes of their physical and chemical properties, which opens possibilities for new applications. There is a growing interest in liquefied gas electrolytes for electrochemical devices operating at low temperatures due to their low melting point. However, their high vapor pressure still poses potential safety concerns for practical usages. Herein, we report facile capillary condensation of gas electrolyte by strong confinement in sub-nanometer pores of metal-organic framework (MOF). By designing MOF-polymer membranes (MPMs) that present dense and continuous micropore (~0.8 nm) networks, we show significant uptake of hydrofluorocarbon molecules in MOF pores at pressure lower than the bulk counterpart. This unique property enables lithium/fluorinated graphite batteries with MPM-based electrolytes to deliver a significantly higher capacity than those with commercial separator membranes (~500 mAh g-1 vs. <0.03 mAh g-1) at -40 °C under reduced pressure of the electrolyte.
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Affiliation(s)
- Guorui Cai
- Department of NanoEngineering, University of California, San Diego, CA, USA
| | - Yijie Yin
- Program of Materials Science and Engineering, University of California, San Diego, CA, USA
| | - Dawei Xia
- Program of Chemical Engineering, University of California, San Diego, CA, USA
| | - Amanda A Chen
- Department of NanoEngineering, University of California, San Diego, CA, USA
- Program of Chemical Engineering, University of California, San Diego, CA, USA
| | - John Holoubek
- Department of NanoEngineering, University of California, San Diego, CA, USA
| | - Jonathan Scharf
- Department of NanoEngineering, University of California, San Diego, CA, USA
| | - Yangyuchen Yang
- Program of Materials Science and Engineering, University of California, San Diego, CA, USA
| | - Ki Hwan Koh
- Department of NanoEngineering, University of California, San Diego, CA, USA
| | - Mingqian Li
- Program of Chemical Engineering, University of California, San Diego, CA, USA
| | - Daniel M Davies
- Department of NanoEngineering, University of California, San Diego, CA, USA
| | - Matthew Mayer
- Department of NanoEngineering, University of California, San Diego, CA, USA
| | - Tae Hee Han
- Department of Organic and Nano Engineering, Hanyang University, Seoul, Republic of Korea
| | - Ying Shirley Meng
- Department of NanoEngineering, University of California, San Diego, CA, USA
- Program of Materials Science and Engineering, University of California, San Diego, CA, USA
- Sustainable Power and Energy Center, University of California, San Diego, CA, USA
| | - Tod A Pascal
- Department of NanoEngineering, University of California, San Diego, CA, USA
- Program of Materials Science and Engineering, University of California, San Diego, CA, USA
- Program of Chemical Engineering, University of California, San Diego, CA, USA
- Sustainable Power and Energy Center, University of California, San Diego, CA, USA
| | - Zheng Chen
- Department of NanoEngineering, University of California, San Diego, CA, USA.
- Program of Materials Science and Engineering, University of California, San Diego, CA, USA.
- Program of Chemical Engineering, University of California, San Diego, CA, USA.
- Sustainable Power and Energy Center, University of California, San Diego, CA, USA.
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16
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Grenier A, Kamm GE, Li Y, Chung H, Meng YS, Chapman KW. Nanostructure Transformation as a Signature of Oxygen Redox in Li-Rich 3d and 4d Cathodes. J Am Chem Soc 2021; 143:5763-5770. [PMID: 33825477 DOI: 10.1021/jacs.1c00497] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Lithium-rich nickel manganese cobalt oxide (LRNMC) is being explored as an alternative to stoichiometric nickel manganese cobalt oxide (NMC) cathode materials due to its higher, initially accessible, energy-storage capacity. This higher capacity has been associated with reversible O oxidation; however, the mechanism through which the change in O chemistry is accommodated by the surrounding cathode structure remains incomplete, making it challenging to design strategies to mitigate poor electrode performance resulting from extended cycling. Focusing on LRNMC cathodes, we identify nanoscale domains of lower electron density within the cathode as a structural consequence of O oxidation using small-angle X-ray scattering (SAXS) and operando X-ray diffraction (XRD). A feature observed in the small angle scattering region suggests the formation of nanopores, which first appears during O oxidation, and is partially reversible. This feature is not present in traditional cathode materials, including stoichiometric NMC and lithium nickel cobalt aluminum oxide (NCA) but appears to be common to other Li-rich systems tested here, Li2RuO3 and Li1.3Nb0.3Mn0.4O2.
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Affiliation(s)
- Antonin Grenier
- Department of Chemistry, Stony Brook University, 100 Nicolls Road, Stony Brook, New York 11794, United States
| | - Gabrielle E Kamm
- Department of Chemistry, Stony Brook University, 100 Nicolls Road, Stony Brook, New York 11794, United States
| | - Yixuan Li
- Department of Nano Engineering, University of California San Diego (UCSD), La Jolla, California 92093, United States
| | - Hyeseung Chung
- Department of Nano Engineering, University of California San Diego (UCSD), La Jolla, California 92093, United States
| | - Ying Shirley Meng
- Department of Nano Engineering, University of California San Diego (UCSD), La Jolla, California 92093, United States
| | - Karena W Chapman
- Department of Chemistry, Stony Brook University, 100 Nicolls Road, Stony Brook, New York 11794, United States
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17
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Wang X, Yang Y, Lai C, Li R, Xu H, Tan DHS, Zhang K, Yu W, Fjeldberg O, Lin M, Tang W, Meng YS, Loh KP. Dense-Stacking Porous Conjugated Polymer as Reactive-Type Host for High-Performance Lithium Sulfur Batteries. Angew Chem Int Ed Engl 2021; 60:11359-11369. [PMID: 33751750 DOI: 10.1002/anie.202016240] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Revised: 03/05/2021] [Indexed: 11/08/2022]
Abstract
Commercialization of the lithium-sulfur battery is hampered by bottlenecks like low sulfur loading, high cathode porosity, uncontrollable Li2 Sx deposition and sluggish kinetics of Li2 S activation. Herein, we developed a densely stacked redox-active hexaazatrinaphthylene (HATN) polymer with a surface area of 302 m2 g-1 and a very high bulk density of ca. 1.60 g cm-3 . Uniquely, HATN polymer has a similar redox potential window to S, which facilitates the binding of Li2 Sx and its transformation chemistry within the bulky polymer host, leading to fast Li2 S/S kinetics. The compact polymer/S electrode presents a high sulfur loading of ca. 15 mgs cm-2 (200-μm thickness) with a low cathode porosity of 41 %. It delivers a high areal capacity of ca. 14 mAh cm-2 and good cycling stability (200 cycles) at electrolyte-sulfur (E/S) ratio of 5 μL mgs -1 . The assembled pouch cell delivers a cell-level high energy density of 303 Wh kg-1 and 392 Wh L-1 .
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Affiliation(s)
- Xiaowei Wang
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543, Singapore, Singapore.,NUS Graduate School for Integrative Sciences and Engineering, National University of Singapore, 21 Lower Kent Ridge Road, 119077, Singapore, Singapore
| | - Yangyuchen Yang
- Materials Science and Engineering, University of California San Diego, La Jolla, CA, 92121, USA
| | - Chen Lai
- School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an, 710049, Shannxi, China
| | - Runlai Li
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543, Singapore, Singapore
| | - Haomin Xu
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543, Singapore, Singapore.,Institute of Materials Research and Engineering, A*STAR, 2 Fusionopolis Way, Innovis, 138634 Singapore, Singapore
| | - Darren H S Tan
- Department of NanoEngineering, University of California San Diego, La Jolla, CA, 92093, USA
| | - Kun Zhang
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543, Singapore, Singapore
| | - Wei Yu
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543, Singapore, Singapore
| | - Oeystein Fjeldberg
- Department of NanoEngineering, University of California San Diego, La Jolla, CA, 92093, USA
| | - Ming Lin
- Institute of Materials Research and Engineering, A*STAR, 2 Fusionopolis Way, Innovis, 138634 Singapore, Singapore
| | - Wei Tang
- School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an, 710049, Shannxi, China
| | - Ying Shirley Meng
- Department of NanoEngineering, University of California San Diego, La Jolla, CA, 92093, USA.,Materials Science and Engineering, University of California San Diego, La Jolla, CA, 92121, USA
| | - Kian Ping Loh
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543, Singapore, Singapore
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18
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Wang X, Yang Y, Lai C, Li R, Xu H, Tan DHS, Zhang K, Yu W, Fjeldberg O, Lin M, Tang W, Meng YS, Loh KP. Dense‐Stacking Porous Conjugated Polymer as Reactive‐Type Host for High‐Performance Lithium Sulfur Batteries. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202016240] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Xiaowei Wang
- Department of Chemistry National University of Singapore 3 Science Drive 3 117543 Singapore Singapore
- NUS Graduate School for Integrative Sciences and Engineering National University of Singapore 21 Lower Kent Ridge Road 119077 Singapore Singapore
| | - Yangyuchen Yang
- Materials Science and Engineering University of California San Diego La Jolla CA 92121 USA
| | - Chen Lai
- School of Chemical Engineering and Technology Xi'an Jiaotong University Xi'an 710049 Shannxi China
| | - Runlai Li
- Department of Chemistry National University of Singapore 3 Science Drive 3 117543 Singapore Singapore
| | - Haomin Xu
- Department of Chemistry National University of Singapore 3 Science Drive 3 117543 Singapore Singapore
- Institute of Materials Research and Engineering A*STAR 2 Fusionopolis Way Innovis 138634 Singapore Singapore
| | - Darren H. S. Tan
- Department of NanoEngineering University of California San Diego La Jolla CA 92093 USA
| | - Kun Zhang
- Department of Chemistry National University of Singapore 3 Science Drive 3 117543 Singapore Singapore
| | - Wei Yu
- Department of Chemistry National University of Singapore 3 Science Drive 3 117543 Singapore Singapore
| | - Oeystein Fjeldberg
- Department of NanoEngineering University of California San Diego La Jolla CA 92093 USA
| | - Ming Lin
- Institute of Materials Research and Engineering A*STAR 2 Fusionopolis Way Innovis 138634 Singapore Singapore
| | - Wei Tang
- School of Chemical Engineering and Technology Xi'an Jiaotong University Xi'an 710049 Shannxi China
| | - Ying Shirley Meng
- Department of NanoEngineering University of California San Diego La Jolla CA 92093 USA
- Materials Science and Engineering University of California San Diego La Jolla CA 92121 USA
| | - Kian Ping Loh
- Department of Chemistry National University of Singapore 3 Science Drive 3 117543 Singapore Singapore
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19
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Tan DHS, Banerjee A, Chen Z, Meng YS. Author Correction: From nanoscale interface characterization to sustainable energy storage using all-solid-state batteries. Nat Nanotechnol 2021; 16:479. [PMID: 33674773 DOI: 10.1038/s41565-021-00877-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Affiliation(s)
- Darren H S Tan
- Department of NanoEngineering, University of California San Diego, La Jolla, CA, USA
| | - Abhik Banerjee
- Department of NanoEngineering, University of California San Diego, La Jolla, CA, USA
| | - Zheng Chen
- Department of NanoEngineering, University of California San Diego, La Jolla, CA, USA.
- Program of Chemical Engineering, University of California San Diego, La Jolla, CA, USA.
- Sustainable Power & Energy Center (SPEC), University of California San Diego, La Jolla, CA, USA.
| | - Ying Shirley Meng
- Department of NanoEngineering, University of California San Diego, La Jolla, CA, USA.
- Sustainable Power & Energy Center (SPEC), University of California San Diego, La Jolla, CA, USA.
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20
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Zhao S, Xia D, Li M, Cheng D, Wang K, Meng YS, Chen Z, Bae J. Self-Healing and Anti-CO 2 Hydrogels for Flexible Solid-State Zinc-Air Batteries. ACS Appl Mater Interfaces 2021; 13:12033-12041. [PMID: 33657791 DOI: 10.1021/acsami.1c00012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Flexible solid-state zinc-air batteries (ZABs) generally suffer from poor electrolyte/electrode contact and mechanical degradation in practical applications. In addition, CO2 corrosion is also a common issue for ZABs with alkaline electrolyte. Herein, we report a thermoreversible alkaline hydrogel electrolyte that can simultaneously solve the aforementioned problems. Through a simple cooling process, the hydrogel electrolyte transforms from solid state to liquid state that can not only restore the deformed electrolyte layer to its original state but also rebuild intimate contact between electrode and electrolyte. Moreover, the ZAB based on this hydrogel electrolyte exhibits an unprecedented anti-CO2 property. As a result, such a battery shows almost 2.5 times discharge duration than that of ZAB based on liquid electrolyte.
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Affiliation(s)
- Siyuan Zhao
- Department of NanoEngineering, University of California San Diego, La Jolla, California 92093, United States
- School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, China
- State Key Laboratory of Automotive Safety and Energy, Tsinghua University, Beijing 100084, China
| | - Dawei Xia
- Department of NanoEngineering, University of California San Diego, La Jolla, California 92093, United States
| | - Minghao Li
- Materials Science and Engineering Program, University of California San Diego, La Jolla, California 92093, United States
| | - Diyi Cheng
- Department of NanoEngineering, University of California San Diego, La Jolla, California 92093, United States
| | - Keliang Wang
- School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, China
- State Key Laboratory of Automotive Safety and Energy, Tsinghua University, Beijing 100084, China
| | - Ying Shirley Meng
- Department of NanoEngineering, University of California San Diego, La Jolla, California 92093, United States
- Sustainable Power and Energy Center (SPEC), University of California San Diego, La Jolla, California 92093, United States
| | - Zheng Chen
- Department of NanoEngineering, University of California San Diego, La Jolla, California 92093, United States
- Program of Chemical Engineering, University of California San Diego, La Jolla, California 92093, United States
- Sustainable Power and Energy Center (SPEC), University of California San Diego, La Jolla, California 92093, United States
| | - Jinhye Bae
- Department of NanoEngineering, University of California San Diego, La Jolla, California 92093, United States
- Program of Chemical Engineering, University of California San Diego, La Jolla, California 92093, United States
- Sustainable Power and Energy Center (SPEC), University of California San Diego, La Jolla, California 92093, United States
- Materials Science and Engineering Program, University of California San Diego, La Jolla, California 92093, United States
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21
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Li Q, Lebens-Higgins ZW, Li Y, Meng YS, Chuang YD, Piper LFJ, Liu Z, Yang W. Could Irradiation Introduce Oxidized Oxygen Signals in Resonant Inelastic X-ray Scattering of Battery Electrodes? J Phys Chem Lett 2021; 12:1138-1143. [PMID: 33476153 DOI: 10.1021/acs.jpclett.0c03639] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The characterization of oxidized oxygen states through high-efficiency mapping of resonant inelastic X-ray scattering (mRIXS) has become a crucial approach for studying the oxygen redox activities in high-energy battery cathodes. However, this approach has been recently challenged due to the concern of irradiation damage. Here we revisited a typical Li-rich electrode, Li1.144Ni0.136Mn0.544Co0.136O2, in both lithiated and delithiated states and evaluated the X-ray irradiation effect in the lengthy mRIXS experiments. Our results show that irradiation cannot introduce any oxidized oxygen feature, and the features of oxidized oxygen are weakened with a high X-ray dose. The results confirm again that mRIXS detects the intrinsic oxidized oxygen state in battery electrodes. However, the distinct irradiation effects in different systems imply that irradiation could selectively target the least stable elemental or chemical states, which should be analyzed with caution in the study of active chemical states.
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Affiliation(s)
- Qingtian Li
- State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, China
- University of Chinese Academy of Sciences, Beijing 100049, China
- Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | | | | | | | - Yi-de Chuang
- Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | | | - Zhi Liu
- State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, China
- University of Chinese Academy of Sciences, Beijing 100049, China
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Wanli Yang
- Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
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22
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Gao N, Abboud AW, Mattei GS, Li Z, Corrao AA, Fang C, Liaw B, Meng YS, Khalifah PG, Dufek EJ, Li B. Fast Diagnosis of Failure Mechanisms and Lifetime Prediction of Li Metal Batteries. Small Methods 2021; 5:e2000807. [PMID: 34927895 DOI: 10.1002/smtd.202000807] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Revised: 10/13/2020] [Indexed: 06/14/2023]
Abstract
Lithium (Li) metal serving as an anode has the potential to double or triple stored energies in rechargeable Li batteries. However, they typically have short cycling lifetimes due to parasitic reactions between the Li metal and electrolyte. It is critically required to develop early fault-detection methods for different failure mechanisms and quick lifetime-prediction methods to ensure rapid development. Prior efforts to determine the dominant failure mechanisms have typically required destructive cell disassembly. In this study, non-destructive diagnostic method based on rest voltages and coulombic efficiency are used to easily distinguish the different failure mechanisms-from loss of Li inventory, electrolyte depletion, and increased cell impedance-which are deeply understood and well validated by experiments and modeling. Using this new diagnostic method, the maximum lifetime of a Li metal cell can be quickly predicted from tests of corresponding anode-free cells, which is important for the screenings of electrolytes, anode stabilization, optimization of operating conditions, and rational battery design.
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Affiliation(s)
- Ningshengjie Gao
- Energy Storage & Advanced Transportation Department, Idaho National Laboratory, Idaho Falls, ID, 83415, USA
| | - Alexander W Abboud
- Energy Storage & Advanced Transportation Department, Idaho National Laboratory, Idaho Falls, ID, 83415, USA
| | - Gerard S Mattei
- Chemistry Department, Stony Brook University, Stony Brook, NY, 11794-3400, USA
- Chemistry Division, Brookhaven National Laboratory, Upton, NY, 11973, USA
| | - Zhuo Li
- Chemistry Department, Stony Brook University, Stony Brook, NY, 11794-3400, USA
- Chemistry Division, Brookhaven National Laboratory, Upton, NY, 11973, USA
| | - Adam A Corrao
- Chemistry Department, Stony Brook University, Stony Brook, NY, 11794-3400, USA
| | - Chengcheng Fang
- Department of NanoEngineering, University of California San Diego, La Jolla, CA, 92093, USA
| | - Boryann Liaw
- Energy Storage & Advanced Transportation Department, Idaho National Laboratory, Idaho Falls, ID, 83415, USA
| | - Ying Shirley Meng
- Department of NanoEngineering, University of California San Diego, La Jolla, CA, 92093, USA
| | - Peter G Khalifah
- Chemistry Department, Stony Brook University, Stony Brook, NY, 11794-3400, USA
- Chemistry Division, Brookhaven National Laboratory, Upton, NY, 11973, USA
| | - Eric J Dufek
- Energy Storage & Advanced Transportation Department, Idaho National Laboratory, Idaho Falls, ID, 83415, USA
| | - Bin Li
- Energy Storage & Advanced Transportation Department, Idaho National Laboratory, Idaho Falls, ID, 83415, USA
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23
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Yim W, Cheng D, Patel SH, Kou R, Meng YS, Jokerst JV. KN95 and N95 Respirators Retain Filtration Efficiency despite a Loss of Dipole Charge during Decontamination. ACS Appl Mater Interfaces 2020; 12:54473-54480. [PMID: 33253527 PMCID: PMC7724761 DOI: 10.1021/acsami.0c17333] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Accepted: 11/18/2020] [Indexed: 05/03/2023]
Abstract
N95 decontamination protocols and KN95 respirators have been described as solutions to a lack of personal protective equipment. However, there are a few material science studies that characterize the charge distribution and physical changes accompanying disinfection treatments, particularly heating. Here, we report the filtration efficiency, dipole charge density, and fiber integrity of N95 and KN95 respirators before and after various decontamination methods. We found that the filter layers in N95 and KN95 respirators maintained their fiber integrity without any deformations during disinfection. The filter layers of N95 respirators were 8-fold thicker and had 2-fold higher dipole charge density than that of KN95 respirators. Emergency Use Authorization (EUA)-approved KN95 respirators showed filtration efficiencies as high as N95 respirators. Interestingly, although there was a significant drop in the dipole charge in both respirators during decontamination, there was no remarkable decrease in the filtration efficiencies due to mechanical filtration. Cotton and polyester face masks had a lower filtration efficiency and lower dipole charge. In conclusion, a loss of electrostatic charge does not directly correlate to the decreased performance of either respirator.
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Affiliation(s)
- Wonjun Yim
- Materials Science and Engineering Program, University of California San Diego, 9500 Gilman Drive, La Jolla, CA 92093, Unites States
| | - Diyi Cheng
- Materials Science and Engineering Program, University of California San Diego, 9500 Gilman Drive, La Jolla, CA 92093, Unites States
| | - Shiv H. Patel
- School of Medicine Simulation Training Center, University of California San Diego, 9500 Gilman Drive, La Jolla, CA 92093, Unites States
- Division of Biological Sciences, University of California San Diego, 9500 Gilman Drive, La Jolla, CA 92093, Unites States
| | - Rui Kou
- Department of Structural Engineering, University of California San Diego, 9500 Gilman Drive, La Jolla, CA 92093, Unites States
| | - Ying Shirley Meng
- Materials Science and Engineering Program, University of California San Diego, 9500 Gilman Drive, La Jolla, CA 92093, Unites States
- Department of Nanoengineering, University of California San Diego, 9500 Gilman Drive, La Jolla, CA 92093, Unites States
| | - Jesse V. Jokerst
- Materials Science and Engineering Program, University of California San Diego, 9500 Gilman Drive, La Jolla, CA 92093, Unites States
- Department of Nanoengineering, University of California San Diego, 9500 Gilman Drive, La Jolla, CA 92093, Unites States
- Department of Radiology, University of California San Diego, 9500 Gilman Drive, La Jolla, CA 92093, Unites States
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24
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Wang X, Pawar G, Li Y, Ren X, Zhang M, Lu B, Banerjee A, Liu P, Dufek EJ, Zhang JG, Xiao J, Liu J, Meng YS, Liaw B. Glassy Li metal anode for high-performance rechargeable Li batteries. Nat Mater 2020; 19:1339-1345. [PMID: 32719511 DOI: 10.1038/s41563-020-0729-1] [Citation(s) in RCA: 60] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Accepted: 06/09/2020] [Indexed: 06/11/2023]
Abstract
Lithium metal has been considered an ideal anode for high-energy rechargeable Li batteries, although its nucleation and growth process remains mysterious, especially at the nanoscale. Here, cryogenic transmission electron microscopy was used to reveal the evolving nanostructure of Li metal deposits at various transient states in the nucleation and growth process, in which a disorder-order phase transition was observed as a function of current density and deposition time. The atomic interaction over wide spatial and temporal scales was depicted by reactive molecular dynamics simulations to assist in understanding the kinetics. Compared to crystalline Li, glassy Li outperforms in electrochemical reversibility, and it has a desired structure for high-energy rechargeable Li batteries. Our findings correlate the crystallinity of the nuclei with the subsequent growth of the nanostructure and morphology, and provide strategies to control and shape the mesostructure of Li metal to achieve high performance in rechargeable Li batteries.
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Affiliation(s)
- Xuefeng Wang
- Department of NanoEngineering, University of California San Diego, La Jolla, CA, USA
| | - Gorakh Pawar
- Department of Material Science and Engineering, Idaho National Laboratory, Idaho Falls, ID, USA
| | - Yejing Li
- Department of NanoEngineering, University of California San Diego, La Jolla, CA, USA
| | - Xiaodi Ren
- Energy and Environmental Directorate, Pacific Northwest National Laboratory, Richland, WA, USA
| | - Minghao Zhang
- Department of NanoEngineering, University of California San Diego, La Jolla, CA, USA
| | - Bingyu Lu
- Department of NanoEngineering, University of California San Diego, La Jolla, CA, USA
| | - Abhik Banerjee
- Department of NanoEngineering, University of California San Diego, La Jolla, CA, USA
| | - Ping Liu
- Department of NanoEngineering, University of California San Diego, La Jolla, CA, USA
| | - Eric J Dufek
- Department of Energy Storage and Advanced Transportation, Idaho National Laboratory, Idaho Falls, ID, USA
| | - Ji-Guang Zhang
- Energy and Environmental Directorate, Pacific Northwest National Laboratory, Richland, WA, USA
| | - Jie Xiao
- Energy and Environmental Directorate, Pacific Northwest National Laboratory, Richland, WA, USA
| | - Jun Liu
- Energy and Environmental Directorate, Pacific Northwest National Laboratory, Richland, WA, USA
| | - Ying Shirley Meng
- Department of NanoEngineering, University of California San Diego, La Jolla, CA, USA.
| | - Boryann Liaw
- Department of Energy Storage and Advanced Transportation, Idaho National Laboratory, Idaho Falls, ID, USA.
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25
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Tan DHS, Xu P, Yang H, Kim MC, Nguyen H, Wu EA, Doux JM, Banerjee A, Meng YS, Chen Z. Sustainable design of fully recyclable all solid-state batteries. ACTA ACUST UNITED AC 2020. [DOI: 10.1557/mre.2020.25] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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26
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Yim W, Cheng D, Patel S, Kui R, Meng YS, Jokerst JV. Assessment of N95 and K95 respirator decontamination: fiber integrity, filtration efficiency, and dipole charge density. medRxiv 2020. [PMID: 32676621 DOI: 10.1101/2020.07.07.20148551] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Personal protective equipment (PPE) including N95 respirators are critical for persons exposed to SARS-CoV-2. KN95 respirators and N95 decontamination protocols have been described as solutions to a lack of such PPE. However, there are a few materials science studies that characterize the charge distribution and physical changes accompanying disinfection treatments particularly heating. Here, we report the filtration efficiency, dipole charge density, and fiber integrity of pristine N95 and KN95 respirators before and after various decontamination methods. We found that the filter layer of N95 is 8-fold thicker than that of KN95, which explains its 10% higher filtration efficiency (97.03 %) versus KN95 (87.76 %) under pristines condition. After 60 minutes of 70 °C treatment, the filtration efficiency and dipole charge density of N95 became 97.16% and 12.48 µC/m2, while those of KN95 were 83.64% and 1.48 µC/m2 ; moreover, fit factor of N95 was 55 and that of KN95 was 2.7. In conclusion, the KN95 respirator is an inferior alternative of N95 respirator. In both systems, a loss of electrostatic charge does not directly correlate to a decrease in performance.
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27
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Abstract
All-solid-state batteries (ASSBs) have attracted enormous attention as one of the critical future technologies for safe and high energy batteries. With the emergence of several highly conductive solid electrolytes in recent years, the bottleneck is no longer Li-ion diffusion within the electrolyte. Instead, many ASSBs are limited by their low Coulombic efficiency, poor power performance, and short cycling life due to the high resistance at the interfaces within ASSBs. Because of the diverse chemical/physical/mechanical properties of various solid components in ASSBs as well as the nature of solid-solid contact, many types of interfaces are present in ASSBs. These include loose physical contact, grain boundaries, and chemical and electrochemical reactions to name a few. All of these contribute to increasing resistance at the interface. Here, we present the distinctive features of the typical interfaces and interphases in ASSBs and summarize the recent work on identifying, probing, understanding, and engineering them. We highlight the complicated, but important, characteristics of interphases, namely the composition, distribution, and electronic and ionic properties of the cathode-electrolyte and electrolyte-anode interfaces; understanding these properties is the key to designing a stable interface. In addition, conformal coatings to prevent side reactions and their selection criteria are reviewed. We emphasize the significant role of the mechanical behavior of the interfaces as well as the mechanical properties of all ASSB components, especially when the soft Li metal anode is used under constant stack pressure. Finally, we provide full-scale (energy, spatial, and temporal) characterization methods to explore, diagnose, and understand the dynamic and buried interfaces and interphases. Thorough and in-depth understanding on the complex interfaces and interphases is essential to make a practical high-energy ASSB.
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Affiliation(s)
- Abhik Banerjee
- Department of NanoEngineering, University of California San Diego, 9500 Gilman Drive, La Jolla, California 92093, United States.,Research Institute for Sustainable Energy (RISE), TCG Centres for Research and Education in Science and Technology (TCG CREST), Sector V, Salt Lake, Kolkata 700091, India
| | - Xuefeng Wang
- Department of NanoEngineering, University of California San Diego, 9500 Gilman Drive, La Jolla, California 92093, United States.,School of Physical Sciences, University of Chinese Academy of Sciences; Laboratory for Advanced Materials & Electron Microscopy, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
| | - Chengcheng Fang
- Department of NanoEngineering, University of California San Diego, 9500 Gilman Drive, La Jolla, California 92093, United States
| | - Erik A Wu
- Department of NanoEngineering, University of California San Diego, 9500 Gilman Drive, La Jolla, California 92093, United States
| | - Ying Shirley Meng
- Department of NanoEngineering, University of California San Diego, 9500 Gilman Drive, La Jolla, California 92093, United States
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28
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Lee YH, Ren H, Wu EA, Fullerton EE, Meng YS, Minh NQ. All-Sputtered, Superior Power Density Thin-Film Solid Oxide Fuel Cells with a Novel Nanofibrous Ceramic Cathode. Nano Lett 2020; 20:2943-2949. [PMID: 32176514 DOI: 10.1021/acs.nanolett.9b02344] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Thin film solid oxide fuel cells (TF-SOFCs) are attracting attention due to their ability to operate at comparatively lower temperatures (400-650 °C) that are unattainable for conventional anode-supported SOFCs (650-800 °C). However, limited cathode performance and cell scalability remain persistent issues. Here, we report a new approach of fabricating yttria-stabilized zirconia (YSZ)-based TF-SOFCs via a scalable magnetron sputtering process. Notable is the development and deposition of a porous La0.6Sr0.4Co0.2Fe0.8O2.95(LSCF)-based cathode with a unique fibrous nanostructure. This all-sputtered cell shows an open-circuit voltage of ∼1.0 V and peak power densities of ∼1.7 and ∼2.5 W/cm2 at 600 and 650 °C, respectively, under hydrogen fuel and air along with showing stable performance in short-term testing. The power densities obtained in this work are the highest among YSZ-based SOFCs at these low temperatures, which demonstrate the feasibility of fabricating exceptionally high-performance TF-SOFC cells with distinctive dense or porous nanostructures for each layer, as desired, by a sputtering process. This work illustrates a new, potentially low-cost, and scalable platform for the fabrication of next-generation TF-SOFCs with excellent power output and stability.
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Affiliation(s)
- Yoon Ho Lee
- Center for Energy Research, University of California, San Diego, La Jolla, California 92093, United States
- School of Mechanical Engineering, University of Ulsan, Ulsan 44610, Republic of Korea
| | - Haowen Ren
- Materials Science and Engineering, University of California, San Diego, La Jolla, California 92093, United States
| | - Erik A Wu
- Department of Nanoengineering, University of California, San Diego, La Jolla, California 92093, United States
| | - Eric E Fullerton
- Materials Science and Engineering, University of California, San Diego, La Jolla, California 92093, United States
- Department of Nanoengineering, University of California, San Diego, La Jolla, California 92093, United States
- Center for Memory and Recording Research, University of California, San Diego, La Jolla, California 92093, United States
- Sustainable Power and Energy Center (SPEC), University of California, San Diego, La Jolla, California 92093, United States
- Department of Electrical and Computer Engineering, University of California, San Diego, La Jolla, California 92093, United States
| | - Ying Shirley Meng
- Department of Nanoengineering, University of California, San Diego, La Jolla, California 92093, United States
- Center for Memory and Recording Research, University of California, San Diego, La Jolla, California 92093, United States
- Sustainable Power and Energy Center (SPEC), University of California, San Diego, La Jolla, California 92093, United States
| | - Nguyen Q Minh
- Center for Energy Research, University of California, San Diego, La Jolla, California 92093, United States
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29
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Lebens-Higgins ZW, Chung H, Zuba MJ, Rana J, Li Y, Faenza NV, Pereira N, McCloskey BD, Rodolakis F, Yang W, Whittingham MS, Amatucci GG, Meng YS, Lee TL, Piper LFJ. How Bulk Sensitive is Hard X-ray Photoelectron Spectroscopy: Accounting for the Cathode-Electrolyte Interface when Addressing Oxygen Redox. J Phys Chem Lett 2020; 11:2106-2112. [PMID: 32101006 DOI: 10.1021/acs.jpclett.0c00229] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Sensitivity to the "bulk" oxygen core orbital makes hard X-ray photoelectron spectroscopy (HAXPES) an appealing technique for studying oxygen redox candidates. Various studies have reported an additional O 1s peak (530-531 eV) at high voltages, which has been considered a direct signature of the bulk oxygen redox process. Here, we find the emergence of a 530.4 eV O 1s HAXPES peak for three model cathodes-Li2MnO3, Li-rich NMC, and NMC 442-that shows no clear link to oxygen redox. Instead, the 530.4 eV peak for these three systems is attributed to transition metal reduction and electrolyte decomposition in the near-surface region. Claims of oxygen redox relying on photoelectron spectroscopy must explicitly account for the surface sensitivity of this technique and the extent of the cathode degradation layer.
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Affiliation(s)
- Zachary W Lebens-Higgins
- Department of Physics, Applied Physics and Astronomy, Binghamton University, Binghamton, New York 13902, United States
| | - Hyeseung Chung
- Department of NanoEngineering, University of California San Diego, La Jolla, California 92093, United States
| | - Mateusz J Zuba
- Materials Science & Engineering, Binghamton University, Binghamton, New York 13902, United States
| | - Jatinkumar Rana
- Materials Science & Engineering, Binghamton University, Binghamton, New York 13902, United States
| | - Yixuan Li
- Department of NanoEngineering, University of California San Diego, La Jolla, California 92093, United States
| | - Nicholas V Faenza
- Energy Storage Research Group, Department of Materials Science and Engineering, Rutgers University, North Brunswick, New Jersey 08902, United States
| | - Nathalie Pereira
- Energy Storage Research Group, Department of Materials Science and Engineering, Rutgers University, North Brunswick, New Jersey 08902, United States
| | - Bryan D McCloskey
- Energy Storage and Distributed Resources Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
- Department of Chemical and Biomolecular Engineering, University of California Berkeley, Berkeley, California 94720, United States
| | - Fanny Rodolakis
- Argonne National Laboratory, 9700 South Cass Avenue, Argonne, Illinois 60439, United States
| | - Wanli Yang
- Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - M Stanley Whittingham
- Materials Science & Engineering, Binghamton University, Binghamton, New York 13902, United States
| | - Glenn G Amatucci
- Energy Storage Research Group, Department of Materials Science and Engineering, Rutgers University, North Brunswick, New Jersey 08902, United States
| | - Ying Shirley Meng
- Department of NanoEngineering, University of California San Diego, La Jolla, California 92093, United States
| | - Tien-Lin Lee
- Diamond Light Source Ltd., Diamond House, Harwell Science and Innovation Campus, Didcot, Oxfordshire OX11 0DE, U.K
| | - Louis F J Piper
- Department of Physics, Applied Physics and Astronomy, Binghamton University, Binghamton, New York 13902, United States
- Materials Science & Engineering, Binghamton University, Binghamton, New York 13902, United States
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30
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Tan DHS, Banerjee A, Chen Z, Meng YS. From nanoscale interface characterization to sustainable energy storage using all-solid-state batteries. Nat Nanotechnol 2020; 15:170-180. [PMID: 32157239 DOI: 10.1038/s41565-020-0657-x] [Citation(s) in RCA: 110] [Impact Index Per Article: 27.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Accepted: 02/11/2020] [Indexed: 06/10/2023]
Abstract
The recent discovery of highly conductive solid-state electrolytes (SSEs) has led to tremendous progress in the development of all-solid-state batteries (ASSBs). Though promising, they still face barriers that limit their practical application, such as poor interfacial stability, scalability challenges and production safety. Additionally, efforts to develop sustainable manufacturing of lithium ion batteries are still lacking, with no prevailing strategy developed yet to handle recyclability of ASSBs. To date, most SSE research has been largely focused on the discovery of novel electrolytes. Recent review articles have extensively examined a broad spectrum of these SSEs using evaluation factors such as conductivity and chemical stability. Recognizing this, in this Review we seek to evaluate SSEs beyond conventional factors and offer a perspective on various bulk, interface and nanoscale phenomena that require urgent attention within the scientific community. We provide a realistic assessment of the current state-of-the-art characterization techniques and evaluate future full cell ASSB prototyping strategies. We hope to offer rational solutions to overcome some major fundamental obstacles faced by the ASSB community, as well as potential strategies toward a sustainable ASSB recycling model.
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Affiliation(s)
- Darren H S Tan
- Department of NanoEngineering, University of California San Diego, La Jolla, CA, USA
| | - Abhik Banerjee
- Department of NanoEngineering, University of California San Diego, La Jolla, CA, USA
| | - Zheng Chen
- Department of NanoEngineering, University of California San Diego, La Jolla, CA, USA.
- Program of Chemical Engineering, University of California San Diego, La Jolla, CA, USA.
- Sustainable Power & Energy Center (SPEC), University of California San Diego, La Jolla, CA, USA.
| | - Ying Shirley Meng
- Department of NanoEngineering, University of California San Diego, La Jolla, CA, USA.
- Sustainable Power & Energy Center (SPEC), University of California San Diego, La Jolla, CA, USA.
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31
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Yang F, Hu W, Yang C, Patrick M, Cooksy AL, Zhang J, Aguiar JA, Fang C, Zhou Y, Meng YS, Huang J, Gu J. Tuning Internal Strain in Metal–Organic Frameworks via Vapor Phase Infiltration for CO
2
Reduction. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202000022] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Fan Yang
- Department of Chemistry and Biochemistry San Diego State University 5500 Campanile Drive San Diego USA
| | - Wenhui Hu
- Department of Chemistry Marquette University Milwaukee WI 53201 USA
| | - Chongqing Yang
- The Molecular Foundry Lawrence Berkeley National Laboratory Berkeley CA 94720 USA
| | - Margaret Patrick
- Department of Chemistry and Biochemistry San Diego State University 5500 Campanile Drive San Diego USA
| | - Andrew L. Cooksy
- Department of Chemistry and Biochemistry San Diego State University 5500 Campanile Drive San Diego USA
| | - Jian Zhang
- The Molecular Foundry Lawrence Berkeley National Laboratory Berkeley CA 94720 USA
| | - Jeffery A. Aguiar
- Nuclear Materials Department Idaho National Laboratory 2525 Fremont Avenue Idaho Falls ID 83415 USA
| | - Chengcheng Fang
- Materials Science and Engineering Program University of California San Diego La Jolla CA 92093 USA
| | - Yinghua Zhou
- Department of Chemistry and Biochemistry San Diego State University 5500 Campanile Drive San Diego USA
- The Key Laboratory of Functional Molecular Solids Ministry of Education Anhui Laboratory of Molecule-Based Materials College of Chemistry and Materials Science Anhui Normal University Wuhu 241000 China
| | - Ying Shirley Meng
- Materials Science and Engineering Program University of California San Diego La Jolla CA 92093 USA
| | - Jier Huang
- Department of Chemistry Marquette University Milwaukee WI 53201 USA
| | - Jing Gu
- Department of Chemistry and Biochemistry San Diego State University 5500 Campanile Drive San Diego USA
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32
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Yang F, Hu W, Yang C, Patrick M, Cooksy AL, Zhang J, Aguiar JA, Fang C, Zhou Y, Meng YS, Huang J, Gu J. Tuning Internal Strain in Metal-Organic Frameworks via Vapor Phase Infiltration for CO 2 Reduction. Angew Chem Int Ed Engl 2020; 59:4572-4580. [PMID: 31914215 DOI: 10.1002/anie.202000022] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2020] [Indexed: 01/10/2023]
Abstract
A gas-phase approach to form Zn coordination sites on metal-organic frameworks (MOFs) by vapor-phase infiltration (VPI) was developed. Compared to Zn sites synthesized by the solution-phase method, VPI samples revealed approximately 2.8 % internal strain. Faradaic efficiency towards conversion of CO2 to CO was enhanced by up to a factor of four, and the initial potential was positively shifted by 200-300 mV. Using element-specific X-ray absorption spectroscopy, the local coordination environment of the Zn center was determined to have square-pyramidal geometry with four Zn-N bonds in the equatorial plane and one Zn-OH2 bond in the axial plane. The fine-tuned internal strain was further supported by monitoring changes in XRD and UV/Visible absorption spectra across a range of infiltration cycles. The ability to use internal strain to increase catalytic activity of MOFs suggests that applying this strategy will enhance intrinsic catalytic capabilities of a variety of porous materials.
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Affiliation(s)
- Fan Yang
- Department of Chemistry and Biochemistry, San Diego State University, 5500 Campanile Drive, San Diego, USA
| | - Wenhui Hu
- Department of Chemistry, Marquette University, Milwaukee, WI, 53201, USA
| | - Chongqing Yang
- The Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - Margaret Patrick
- Department of Chemistry and Biochemistry, San Diego State University, 5500 Campanile Drive, San Diego, USA
| | - Andrew L Cooksy
- Department of Chemistry and Biochemistry, San Diego State University, 5500 Campanile Drive, San Diego, USA
| | - Jian Zhang
- The Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - Jeffery A Aguiar
- Nuclear Materials Department, Idaho National Laboratory, 2525 Fremont Avenue, Idaho Falls, ID, 83415, USA
| | - Chengcheng Fang
- Materials Science and Engineering Program, University of California San Diego, La Jolla, CA, 92093, USA
| | - Yinghua Zhou
- Department of Chemistry and Biochemistry, San Diego State University, 5500 Campanile Drive, San Diego, USA.,The Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, 241000, China
| | - Ying Shirley Meng
- Materials Science and Engineering Program, University of California San Diego, La Jolla, CA, 92093, USA
| | - Jier Huang
- Department of Chemistry, Marquette University, Milwaukee, WI, 53201, USA
| | - Jing Gu
- Department of Chemistry and Biochemistry, San Diego State University, 5500 Campanile Drive, San Diego, USA
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33
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Qiu B, Zhang M, Lee SY, Liu H, Wynn TA, Wu L, Zhu Y, Wen W, Brown CM, Zhou D, Liu Z, Meng YS. Metastability and Reversibility of Anionic Redox-Based Cathode for High-Energy Rechargeable Batteries. Cell Rep Phys Sci 2020; 1:10.1016/j.xcrp.2020.100028. [PMID: 33655226 PMCID: PMC7919000 DOI: 10.1016/j.xcrp.2020.100028] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Great focus has recently been placed on anionic redox, to which high capacities of Li-rich layered oxides are attributed. With almost doubled capacity compared with state-of-the-art cathode materials, Li-rich layered oxides still fall short in other performance metrics. Among these, voltage decay upon cycling remains the most hindering obstacle, in which defect electrochemistry plays a critical role. Here, we reveal that the metastable state of cycled Li-rich layered oxide, which stems from structural defects in different dimensions, is responsible for the voltage decay. More importantly, through mild thermal energy, the metastable state can be driven to a stable state, bringing about structural and voltage recovery. However, for the classic layered oxide without reversible anionic redox, thermal energy can only introduce cation disordering, leading to performance deterioration. These insights elucidate that understanding the structure metastability and reversibility is essential for implementing design strategies to improve cycling stability for high-capacity layered oxides.
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Affiliation(s)
- Bao Qiu
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, P.R. China
- These authors contributed equally
| | - Minghao Zhang
- Department of NanoEngineering, University of California, San Diego, La Jolla, CA 92093, USA
- These authors contributed equally
| | - Seung-Yong Lee
- Department of Condensed Matter Physics and Materials Science, Brookhaven National Laboratory, Upton, NY 11973, USA
| | - Haodong Liu
- Department of NanoEngineering, University of California, San Diego, La Jolla, CA 92093, USA
| | - Thomas A. Wynn
- Department of NanoEngineering, University of California, San Diego, La Jolla, CA 92093, USA
| | - Lijun Wu
- Department of Condensed Matter Physics and Materials Science, Brookhaven National Laboratory, Upton, NY 11973, USA
| | - Yimei Zhu
- Department of Condensed Matter Physics and Materials Science, Brookhaven National Laboratory, Upton, NY 11973, USA
| | - Wen Wen
- Shanghai Synchrotron Radiation Facility, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Zhangjiang High-Tech Park, Pudong New Area, Shanghai 201204, P.R. China
| | - Craig M. Brown
- National Institute of Standards and Technology, Center for Neutron Research, 100 Bureau Drive, Gaithersburg, MD 20899-6102, USA
| | - Dong Zhou
- University of Muenster MEET Battery Research Center, Corrensstrasse 46, 48149 Muenster, Germany
| | - Zhaoping Liu
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, P.R. China
| | - Ying Shirley Meng
- Department of NanoEngineering, University of California, San Diego, La Jolla, CA 92093, USA
- Lead Contact
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34
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Lee DG, Kim MC, Wang S, Kim BJ, Meng YS, Jung HS. Effect of Metal Electrodes on Aging-Induced Performance Recovery in Perovskite Solar Cells. ACS Appl Mater Interfaces 2019; 11:48497-48504. [PMID: 31799829 DOI: 10.1021/acsami.9b14619] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
For commercialization of perovskite solar cells (PSCs), it is important to substitute the alternative electrode for Au to decrease the unit cost. From the early stage, Ag exhibits a potential to be a good counter electrode in PSCs; however, there is an abnormal s-shaped J-V curve with the Ag electrode, and it is recovered as time passes. The perception of the aging-induced recovery process and refutation of the raised stability issues are required for commercial application of Ag electrodes. Herein, we compared the aging effect of PSCs with Ag and Au electrodes and found that only devices with Ag electrodes have a dramatical aging-induced recovery process. We observed the change of photoelectronic properties only in the devices with Ag electrodes as time passes, which mainly contributes to recovery of the s-shaped J-V curve. We verified the work function change of an aged Ag electrode and its mechanism by photoelectron spectroscopy analysis. By comparing the light stability under 1 sun intensity illumination, we can assure the practical stability of Ag electrodes in case of being encapsulated. This work suggests the profound understanding of the aging-induced recovery process of PSCs and the possibility of commercial application of Ag electrodes.
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Affiliation(s)
- Dong Geon Lee
- School of Advanced Materials Science & Engineering , Sungkyunkwan University , Suwon 16419 , Republic of Korea
| | | | | | - Byeong Jo Kim
- School of Advanced Materials Science & Engineering , Sungkyunkwan University , Suwon 16419 , Republic of Korea
- Department of Chemistry, Ångström Laboratory , Uppsala University , Box 523, SE 75120 Uppsala , Sweden
| | | | - Hyun Suk Jung
- School of Advanced Materials Science & Engineering , Sungkyunkwan University , Suwon 16419 , Republic of Korea
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35
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Banerjee A, Tang H, Wang X, Cheng JH, Nguyen H, Zhang M, Tan DHS, Wynn TA, Wu EA, Doux JM, Wu T, Ma L, Sterbinsky GE, D'Souza MS, Ong SP, Meng YS. Revealing Nanoscale Solid-Solid Interfacial Phenomena for Long-Life and High-Energy All-Solid-State Batteries. ACS Appl Mater Interfaces 2019; 11:43138-43145. [PMID: 31642661 DOI: 10.1021/acsami.9b13955] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
Enabling long cyclability of high-voltage oxide cathodes is a persistent challenge for all-solid-state batteries, largely because of their poor interfacial stabilities against sulfide solid electrolytes. While protective oxide coating layers such as LiNbO3 (LNO) have been proposed, its precise working mechanisms are still not fully understood. Existing literature attributes reductions in interfacial impedance growth to the coating's ability to prevent interfacial reactions. However, its true nature is more complex, with cathode interfacial reactions and electrolyte electrochemical decomposition occurring simultaneously, making it difficult to decouple each effect. Herein, we utilized various advanced characterization tools and first-principles calculations to probe the interfacial phenomenon between solid electrolyte Li6PS5Cl (LPSCl) and high-voltage cathode LiNi0.85Co0.1Al0.05O2 (NCA). We segregated the effects of spontaneous reaction between LPSCl and NCA at the interface and quantified the intrinsic electrochemical decomposition of LPSCl during cell cycling. Both experimental and computational results demonstrated improved thermodynamic stability between NCA and LPSCl after incorporation of the LNO coating. Additionally, we revealed the in situ passivation effect of LPSCl electrochemical decomposition. When combined, both these phenomena occurring at the first charge cycle result in a stabilized interface, enabling long cyclability of all-solid-state batteries.
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Affiliation(s)
- Abhik Banerjee
- Department of NanoEngineering , University of California San Diego , 9500 Gilman Drive , La Jolla , California 92093 , United States
| | - Hanmei Tang
- Department of NanoEngineering , University of California San Diego , 9500 Gilman Drive , La Jolla , California 92093 , United States
| | - Xuefeng Wang
- Department of NanoEngineering , University of California San Diego , 9500 Gilman Drive , La Jolla , California 92093 , United States
| | - Ju-Hsiang Cheng
- Department of NanoEngineering , University of California San Diego , 9500 Gilman Drive , La Jolla , California 92093 , United States
| | - Han Nguyen
- Department of NanoEngineering , University of California San Diego , 9500 Gilman Drive , La Jolla , California 92093 , United States
| | - Minghao Zhang
- Department of NanoEngineering , University of California San Diego , 9500 Gilman Drive , La Jolla , California 92093 , United States
| | - Darren H S Tan
- Department of NanoEngineering , University of California San Diego , 9500 Gilman Drive , La Jolla , California 92093 , United States
| | - Thomas A Wynn
- Department of NanoEngineering , University of California San Diego , 9500 Gilman Drive , La Jolla , California 92093 , United States
| | - Erik A Wu
- Department of NanoEngineering , University of California San Diego , 9500 Gilman Drive , La Jolla , California 92093 , United States
| | - Jean-Marie Doux
- Department of NanoEngineering , University of California San Diego , 9500 Gilman Drive , La Jolla , California 92093 , United States
| | - Tianpin Wu
- X-ray Science Division, Advanced Photon Source , Argonne National Laboratory , Lemont , Illinois 60439 , United States
| | - Lu Ma
- X-ray Science Division, Advanced Photon Source , Argonne National Laboratory , Lemont , Illinois 60439 , United States
| | - George E Sterbinsky
- X-ray Science Division, Advanced Photon Source , Argonne National Laboratory , Lemont , Illinois 60439 , United States
| | - Macwin Savio D'Souza
- Department of NanoEngineering , University of California San Diego , 9500 Gilman Drive , La Jolla , California 92093 , United States
| | - Shyue Ping Ong
- Department of NanoEngineering , University of California San Diego , 9500 Gilman Drive , La Jolla , California 92093 , United States
- Sustainable Power and Energy Center (SPEC) , University of California San Diego , 9500 Gilman Drive , La Jolla , California 92093 , United States
| | - Ying Shirley Meng
- Department of NanoEngineering , University of California San Diego , 9500 Gilman Drive , La Jolla , California 92093 , United States
- Sustainable Power and Energy Center (SPEC) , University of California San Diego , 9500 Gilman Drive , La Jolla , California 92093 , United States
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36
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Holoubek J, Yin Y, Li M, Yu M, Meng YS, Liu P, Chen Z. Exploiting Mechanistic Solvation Kinetics for Dual‐Graphite Batteries with High Power Output at Extremely Low Temperature. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201912167] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- John Holoubek
- Department of NanoEngineering University of California, San Diego La Jolla CA 92093 USA
| | - Yijie Yin
- Program of Materials Science University of California, San Diego La Jolla CA 92093 USA
| | - Mingqian Li
- Program of Chemical Engineering University of California San Diego, La Jolla CA 92093 USA
| | - Mingyu Yu
- Program of Materials Science University of California, San Diego La Jolla CA 92093 USA
| | - Ying Shirley Meng
- Department of NanoEngineering University of California, San Diego La Jolla CA 92093 USA
- Program of Materials Science University of California, San Diego La Jolla CA 92093 USA
- Sustainable Power and Energy Center University of California, San Diego La Jolla CA 92093 USA
| | - Ping Liu
- Department of NanoEngineering University of California, San Diego La Jolla CA 92093 USA
- Program of Chemical Engineering University of California San Diego, La Jolla CA 92093 USA
- Program of Materials Science University of California, San Diego La Jolla CA 92093 USA
- Sustainable Power and Energy Center University of California, San Diego La Jolla CA 92093 USA
| | - Zheng Chen
- Department of NanoEngineering University of California, San Diego La Jolla CA 92093 USA
- Program of Chemical Engineering University of California San Diego, La Jolla CA 92093 USA
- Program of Materials Science University of California, San Diego La Jolla CA 92093 USA
- Sustainable Power and Energy Center University of California, San Diego La Jolla CA 92093 USA
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37
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Holoubek J, Yin Y, Li M, Yu M, Meng YS, Liu P, Chen Z. Exploiting Mechanistic Solvation Kinetics for Dual-Graphite Batteries with High Power Output at Extremely Low Temperature. Angew Chem Int Ed Engl 2019; 58:18892-18897. [PMID: 31654444 DOI: 10.1002/anie.201912167] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Indexed: 12/21/2022]
Abstract
Improving the extremely low temperature operation of rechargeable batteries is vital to the operation of electronics in extreme environments, where systems capable of high-rate discharge are in short supply. Herein, we demonstrate the holistic design of dual-graphite batteries, which circumvent the sluggish ion-desolvation process found in typical lithium-ion batteries during discharge. These batteries were enabled by a novel electrolyte, which simultaneously provides high electrochemical stability and ionic conductivity at low temperature. The dual-graphite cells, when compared to industry-type graphite ∥ LiCoO2 full-cells demonstrated an 11 times increased capacity retention at -60 °C for a 10 C discharge rate, indicative of the superior kinetics of the "dual-ion" storage mechanism. These trends are further supported by galvanostatic intermittent titration technique (GITT) and electrochemical impedance spectroscopy (EIS) measurements at reduced temperature. This work provides a new design strategy for extreme low-temperature batteries.
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Affiliation(s)
- John Holoubek
- Department of NanoEngineering, University of California, San Diego, La Jolla, CA, 92093, USA
| | - Yijie Yin
- Program of Materials Science, University of California, San Diego, La Jolla, CA, 92093, USA
| | - Mingqian Li
- Program of Chemical Engineering, University of California, San Diego, La Jolla, CA, 92093, USA
| | - Mingyu Yu
- Program of Materials Science, University of California, San Diego, La Jolla, CA, 92093, USA
| | - Ying Shirley Meng
- Department of NanoEngineering, University of California, San Diego, La Jolla, CA, 92093, USA.,Program of Materials Science, University of California, San Diego, La Jolla, CA, 92093, USA.,Sustainable Power and Energy Center, University of California, San Diego, La Jolla, CA, 92093, USA
| | - Ping Liu
- Department of NanoEngineering, University of California, San Diego, La Jolla, CA, 92093, USA.,Program of Chemical Engineering, University of California, San Diego, La Jolla, CA, 92093, USA.,Program of Materials Science, University of California, San Diego, La Jolla, CA, 92093, USA.,Sustainable Power and Energy Center, University of California, San Diego, La Jolla, CA, 92093, USA
| | - Zheng Chen
- Department of NanoEngineering, University of California, San Diego, La Jolla, CA, 92093, USA.,Program of Chemical Engineering, University of California, San Diego, La Jolla, CA, 92093, USA.,Program of Materials Science, University of California, San Diego, La Jolla, CA, 92093, USA.,Sustainable Power and Energy Center, University of California, San Diego, La Jolla, CA, 92093, USA
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38
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Fang C, Li J, Zhang M, Zhang Y, Yang F, Lee JZ, Lee MH, Alvarado J, Schroeder MA, Yang Y, Lu B, Williams N, Ceja M, Yang L, Cai M, Gu J, Xu K, Wang X, Meng YS. Quantifying inactive lithium in lithium metal batteries. Nature 2019; 572:511-515. [DOI: 10.1038/s41586-019-1481-z] [Citation(s) in RCA: 533] [Impact Index Per Article: 106.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2019] [Accepted: 06/12/2019] [Indexed: 12/21/2022]
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40
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Correa-Baena JP, Luo Y, Brenner TM, Snaider J, Sun S, Li X, Jensen MA, Hartono NTP, Nienhaus L, Wieghold S, Poindexter JR, Wang S, Meng YS, Wang T, Lai B, Holt MV, Cai Z, Bawendi MG, Huang L, Buonassisi T, Fenning DP. Homogenized halides and alkali cation segregation in alloyed organic-inorganic perovskites. Science 2019; 363:627-631. [DOI: 10.1126/science.aah5065] [Citation(s) in RCA: 198] [Impact Index Per Article: 39.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2018] [Revised: 11/01/2018] [Accepted: 01/02/2019] [Indexed: 12/19/2022]
Abstract
The role of the alkali metal cations in halide perovskite solar cells is not well understood. Using synchrotron-based nano–x-ray fluorescence and complementary measurements, we found that the halide distribution becomes homogenized upon addition of cesium iodide, either alone or with rubidium iodide, for substoichiometric, stoichiometric, and overstoichiometric preparations, where the lead halide is varied with respect to organic halide precursors. Halide homogenization coincides with long-lived charge carrier decays, spatially homogeneous carrier dynamics (as visualized by ultrafast microscopy), and improved photovoltaic device performance. We found that rubidium and potassium phase-segregate in highly concentrated clusters. Alkali metals are beneficial at low concentrations, where they homogenize the halide distribution, but at higher concentrations, they form recombination-active second-phase clusters.
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Xia H, Zhu X, Liu J, Liu Q, Lan S, Zhang Q, Liu X, Seo JK, Chen T, Gu L, Meng YS. A monoclinic polymorph of sodium birnessite for ultrafast and ultrastable sodium ion storage. Nat Commun 2018; 9:5100. [PMID: 30504861 PMCID: PMC6269426 DOI: 10.1038/s41467-018-07595-y] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2018] [Accepted: 11/13/2018] [Indexed: 11/25/2022] Open
Abstract
Sodium transition metal oxides with layered structures are attractive cathode materials for sodium-ion batteries due to their large theoretical specific capacities. However, these layered oxides suffer from poor cyclability and low rate performance because of structural instability and sluggish electrode kinetics. In the present work, we show the sodiation reaction of Mn3O4 to yield crystal water free NaMnO2-y-δ(OH)2y, a monoclinic polymorph of sodium birnessite bearing Na/Mn(OH)8 hexahedra and Na/MnO6 octahedra. With the new polymorph, NaMnO2-y-δ(OH)2y exhibits an enlarged interlayer distance of about 7 Å, which is in favor of fast sodium ion migration and good structural stability. In combination of the favorable nanosheet morphology, NaMn2-y-δ(OH)2y cathode delivers large specific capacity up to 211.9 mAh g-1, excellent cycle performance (94.6% capacity retention after 1000 cycles), and outstanding rate capability (156.0 mAh g-1 at 50 C). This study demonstrates an effective approach in tailoring the structural and electrochemical properties of birnessite towards superior cathode performance in sodium-ion batteries.
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Affiliation(s)
- Hui Xia
- School of Materials Science and Engineering, Nanjing University of Science and Technology, 210094 Nanjing, China
- Herbert Gleiter Institute of Nanoscience, Nanjing University of Science and Technology, 210094 Nanjing, China
| | - Xiaohui Zhu
- School of Materials Science and Engineering, Nanjing University of Science and Technology, 210094 Nanjing, China
- Herbert Gleiter Institute of Nanoscience, Nanjing University of Science and Technology, 210094 Nanjing, China
| | - Jizi Liu
- School of Materials Science and Engineering, Nanjing University of Science and Technology, 210094 Nanjing, China
- Herbert Gleiter Institute of Nanoscience, Nanjing University of Science and Technology, 210094 Nanjing, China
| | - Qi Liu
- Department of Physics, City University of Hong Kong, Kowloon, Hong Kong China
| | - Si Lan
- School of Materials Science and Engineering, Nanjing University of Science and Technology, 210094 Nanjing, China
- Herbert Gleiter Institute of Nanoscience, Nanjing University of Science and Technology, 210094 Nanjing, China
| | - Qinghua Zhang
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, 100190 Beijing, China
| | - Xinyu Liu
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, 100190 Beijing, China
| | - Joon Kyo Seo
- Department of NanoEngineering, University of California San Diego, La Jolla, CA 92093 United States
| | - Tingting Chen
- School of Materials Science and Engineering, Nanjing University of Science and Technology, 210094 Nanjing, China
- Herbert Gleiter Institute of Nanoscience, Nanjing University of Science and Technology, 210094 Nanjing, China
| | - Lin Gu
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, 100190 Beijing, China
| | - Ying Shirley Meng
- Department of NanoEngineering, University of California San Diego, La Jolla, CA 92093 United States
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42
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Wang S, Huang Z, Wang X, Li Y, Günther M, Valenzuela S, Parikh P, Cabreros A, Xiong W, Meng YS. Unveiling the Role of tBP–LiTFSI Complexes in Perovskite Solar Cells. J Am Chem Soc 2018; 140:16720-16730. [DOI: 10.1021/jacs.8b09809] [Citation(s) in RCA: 136] [Impact Index Per Article: 22.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
| | | | | | | | - Marcella Günther
- Department of Chemistry and Pharmacy, University of Würzburg, Am Hubland,
Campus Süd, Würzburg 97074, Germany
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43
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Yin L, Mattei GS, Li Z, Zheng J, Zhao W, Omenya F, Fang C, Li W, Li J, Xie Q, Zhang JG, Whittingham MS, Meng YS, Manthiram A, Khalifah PG. Extending the limits of powder diffraction analysis: Diffraction parameter space, occupancy defects, and atomic form factors. Rev Sci Instrum 2018; 89:093002. [PMID: 30278743 DOI: 10.1063/1.5044555] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2018] [Accepted: 09/02/2018] [Indexed: 06/08/2023]
Abstract
Although the determination of site occupancies is often a major goal in Rietveld refinement studies, the accurate refinement of site occupancies is exceptionally challenging due to many correlations and systematic errors that have a hidden impact on the final refined occupancy parameters. Through the comparison of results independently obtained from neutron and synchrotron powder diffraction, improved approaches capable of detecting occupancy defects with an exceptional sensitivity of 0.1% (absolute) in the class of layered NMC (Li[NixMnyCoz]O2) Li-ion battery cathode materials have been developed. A new method of visualizing the diffraction parameter space associated with crystallographic site scattering power through the use of f* diagrams is described, and this method is broadly applicable to ternary compounds. The f* diagrams allow the global minimum fit to be easily identified and also permit a robust determination of the number and types of occupancy defects within a structure. Through a comparison of neutron and X-ray diffraction results, a systematic error in the synchrotron results was identified using f* diagrams for a series of NMC compounds. Using neutron diffraction data as a reference, this error was shown to specifically result from problems associated with the neutral oxygen X-ray atomic form factor and could be eliminated by using the ionic O2- form factor for this anion while retaining the neutral form factors for cationic species. The f* diagram method offers a new opportunity to experimentally assess the quality of atomic form factors through powder diffraction studies on chemically related multi-component compounds.
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Affiliation(s)
- Liang Yin
- Department of Chemistry, Stony Brook University, Stony Brook, New York 11794, USA
| | - Gerard S Mattei
- Department of Chemistry, Stony Brook University, Stony Brook, New York 11794, USA
| | - Zhou Li
- Department of Chemistry, Stony Brook University, Stony Brook, New York 11794, USA
| | - Jianming Zheng
- Energy and Environment Directorate, Pacific Northwest National Laboratory, Richland, Washington 99354, USA
| | - Wengao Zhao
- Energy and Environment Directorate, Pacific Northwest National Laboratory, Richland, Washington 99354, USA
| | - Fredrick Omenya
- Department of Chemistry, Binghamton University, Binghamton, New York 13902, USA
| | - Chengcheng Fang
- Department of NanoEngineering, University of California San Diego, La Jolla, California 92093, USA
| | - Wangda Li
- Materials Science and Engineering Program and Texas Materials Institute, The University of Texas at Austin, Austin, Texas 78712, USA
| | - Jianyu Li
- Materials Science and Engineering Program and Texas Materials Institute, The University of Texas at Austin, Austin, Texas 78712, USA
| | - Qiang Xie
- Materials Science and Engineering Program and Texas Materials Institute, The University of Texas at Austin, Austin, Texas 78712, USA
| | - Ji-Guang Zhang
- Energy and Environment Directorate, Pacific Northwest National Laboratory, Richland, Washington 99354, USA
| | | | - Ying Shirley Meng
- Department of NanoEngineering, University of California San Diego, La Jolla, California 92093, USA
| | - Arumugam Manthiram
- Materials Science and Engineering Program and Texas Materials Institute, The University of Texas at Austin, Austin, Texas 78712, USA
| | - Peter G Khalifah
- Department of Chemistry, Stony Brook University, Stony Brook, New York 11794, USA
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44
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Chu IH, Nguyen H, Hy S, Lin YC, Wang Z, Xu Z, Deng Z, Meng YS, Ong SP. Correction to Insights into the Performance Limits of the Li 7P 3S 11 Superionic Conductor: A Combined First-Principles and Experimental Study. ACS Appl Mater Interfaces 2018; 10:10598. [PMID: 29553708 DOI: 10.1021/acsami.8b03438] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
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45
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Abstract
Solid-state electrolytes are a promising replacement for current organic liquid electrolytes, enabling higher energy densities and improved safety of lithium-ion (Li-ion) batteries. However, a number of setbacks prevent their integration into commercial devices. The main limiting factor is due to nanoscale phenomena occurring at the electrode/electrolyte interfaces, ultimately leading to degradation of battery operation. These key problems are highly challenging to observe and characterize as these batteries contain multiple buried interfaces. One approach for direct observation of interfacial phenomena in thin film batteries is through the fabrication of electrochemically active nanobatteries by a focused ion beam (FIB). As such, a reliable technique to fabricate nanobatteries was developed and demonstrated in recent work. Herein, a detailed protocol with a step-by-step process is presented to enable the reproduction of this nanobattery fabrication process. In particular, this technique was applied to a thin film battery consisting of LiCoO2/LiPON/a-Si, and has further been previously demonstrated by in situ cycling within a transmission electron microscope.
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Affiliation(s)
- Jungwoo Z Lee
- Department of NanoEngineering, University of California San Diego
| | - Thomas A Wynn
- Materials Science and Engineering Program, University of California San Diego
| | - Ying Shirley Meng
- Department of NanoEngineering, University of California San Diego; Materials Science and Engineering Program, University of California San Diego;
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46
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Root S, Carpenter CW, Kayser LV, Rodriquez D, Davies DM, Wang S, Tan STM, Meng YS, Lipomi DJ. Ionotactile Stimulation: Nonvolatile Ionic Gels for Human-Machine Interfaces. ACS Omega 2018; 3:662-666. [PMID: 29399651 PMCID: PMC5793030 DOI: 10.1021/acsomega.7b01773] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2017] [Accepted: 01/05/2018] [Indexed: 05/22/2023]
Abstract
We report the application of a nonvolatile ionic gel as a soft, conductive interface for electrotactile stimulation. Materials characterization reveals that, compared to a conventional ionic hydrogel, a glycerol-containing ionic gel does not dry out in air, has better adhesion to skin, and exhibits a similar impedance spectrum in the range of physiological frequencies. Moreover, psychophysical experiments reveal that the nonvolatile gel also exhibits a wider window of comfortable electrotactile stimulation. Finally, a simple pixelated device is fabricated to demonstrate spatial resolution of the haptic signal.
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47
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Wang X, Zhang M, Alvarado J, Wang S, Sina M, Lu B, Bouwer J, Xu W, Xiao J, Zhang JG, Liu J, Meng YS. New Insights on the Structure of Electrochemically Deposited Lithium Metal and Its Solid Electrolyte Interphases via Cryogenic TEM. Nano Lett 2017; 17:7606-7612. [PMID: 29090936 DOI: 10.1021/acs.nanolett.7b03606] [Citation(s) in RCA: 118] [Impact Index Per Article: 16.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Lithium metal has been considered the "holy grail" anode material for rechargeable batteries despite the fact that its dendritic growth and low Coulombic efficiency (CE) have crippled its practical use for decades. Its high chemical reactivity and low stability make it difficult to explore the intrinsic chemical and physical properties of the electrochemically deposited lithium (EDLi) and its accompanying solid electrolyte interphase (SEI). To prevent the dendritic growth and enhance the electrochemical reversibility, it is crucial to understand the nano- and mesostructures of EDLi. However, Li metal is very sensitive to beam damage and has low contrast for commonly used characterization techniques such as electron microscopy. Inspired by biological imaging techniques, this work demonstrates the power of cryogenic (cryo)-electron microscopy to reveal the detailed structure of EDLi and the SEI composition at the nanoscale while minimizing beam damage during imaging. Surprisingly, the results show that the nucleation-dominated EDLi (5 min at 0.5 mA cm-2) is amorphous, while there is some crystalline LiF present in the SEI. The EDLi grown from various electrolytes with different additives exhibits distinctive surface properties. Consequently, these results highlight the importance of the SEI and its relationship with the CE. Our findings not only illustrate the capabilities of cryogenic microscopy for beam (thermal)-sensitive materials but also yield crucial structural information on the EDLi evolution with and without electrolyte additives.
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Affiliation(s)
| | | | | | | | | | | | | | - Wu Xu
- Energy and Environmental Directorate, Pacific Northwest National Laboratory , 902 Battelle Boulevard, Richland, Washington 99354, United States
| | - Jie Xiao
- Energy and Environmental Directorate, Pacific Northwest National Laboratory , 902 Battelle Boulevard, Richland, Washington 99354, United States
| | - Ji-Guang Zhang
- Energy and Environmental Directorate, Pacific Northwest National Laboratory , 902 Battelle Boulevard, Richland, Washington 99354, United States
| | - Jun Liu
- Energy and Environmental Directorate, Pacific Northwest National Laboratory , 902 Battelle Boulevard, Richland, Washington 99354, United States
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48
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Huang J, Liu H, Zhou N, An K, Meng YS, Luo J. Enhancing the Ion Transport in LiMn 1.5Ni 0.5O 4 by Altering the Particle Wulff Shape via Anisotropic Surface Segregation. ACS Appl Mater Interfaces 2017; 9:36745-36754. [PMID: 28972731 DOI: 10.1021/acsami.7b09903] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Spontaneous and anisotropic surface segregation of W cations in LiMn1.5Ni0.5O4 particles can alter the Wulff shape and improve surface stability, thereby significantly improving the electrochemical performance. An Auger electron nanoprobe was employed to identify the anisotropic surface segregation, whereby W cations prefer to segregate to {110} surface facets to decrease its relative surface energy according to Gibbs adsorption theory and subsequently increase its surface area according to Wulff theory. Consequently, the rate performance is improved (e.g., by ∼5-fold at a high rate of 25C) because the {110} facets have more open channels for fast lithium ion diffusion. Furthermore, X-ray photoelectron spectroscopy (XPS) depth profiling suggested that the surface segregation and partial reduction of W cation inhibit the formation of Mn3+ on surfaces to improve cycling stability via enhancing the cathode electrolyte interphase (CEI) stability at high charging voltages. This is the first report of using anisotropic surface segregation to thermodynamically control the particle morphology as well as enhancing CEI stability as a facile, and potentially general, method to significantly improve the electrochemical performance of battery electrodes. Combining neutron diffraction, an Auger electron nanoprobe, XPS, and other characterizations, we depict the underlying mechanisms of improved ionic transport and CEI stability in high-voltage LiMn1.5Ni0.5O4 spinel materials.
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Affiliation(s)
- Jiajia Huang
- Department of NanoEngineering, Program of Materials Science and Engineering, University of California, San Diego , 9500 Gilman Drive, La Jolla, California 92093-0448, United States
| | - Haodong Liu
- Department of NanoEngineering, Program of Materials Science and Engineering, University of California, San Diego , 9500 Gilman Drive, La Jolla, California 92093-0448, United States
| | - Naixie Zhou
- Department of NanoEngineering, Program of Materials Science and Engineering, University of California, San Diego , 9500 Gilman Drive, La Jolla, California 92093-0448, United States
| | - Ke An
- Chemical and Engineering Materials Division, Oak Ridge National Laboratory , Oak Ridge, Tennessee 37830, United States
| | - Ying Shirley Meng
- Department of NanoEngineering, Program of Materials Science and Engineering, University of California, San Diego , 9500 Gilman Drive, La Jolla, California 92093-0448, United States
| | - Jian Luo
- Department of NanoEngineering, Program of Materials Science and Engineering, University of California, San Diego , 9500 Gilman Drive, La Jolla, California 92093-0448, United States
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49
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Lin F, Liu Y, Yu X, Cheng L, Singer A, Shpyrko OG, Xin HL, Tamura N, Tian C, Weng TC, Yang XQ, Meng YS, Nordlund D, Yang W, Doeff MM. Synchrotron X-ray Analytical Techniques for Studying Materials Electrochemistry in Rechargeable Batteries. Chem Rev 2017; 117:13123-13186. [DOI: 10.1021/acs.chemrev.7b00007] [Citation(s) in RCA: 314] [Impact Index Per Article: 44.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Feng Lin
- Department
of Chemistry, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - Yijin Liu
- Stanford
Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, California 94035, United States
| | - Xiqian Yu
- Chemistry
Department, Brookhaven National Laboratory, Upton, New York 11973, United States
- Beijing
National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
| | - Lei Cheng
- Energy
Storage and Distributed Resources Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Andrej Singer
- Department
of Physics, University of California San Diego, La Jolla, California 92093, United States
| | - Oleg G. Shpyrko
- Department
of Physics, University of California San Diego, La Jolla, California 92093, United States
| | - Huolin L. Xin
- Center for
Functional Nanomaterials, Brookhaven National Laboratory, Upton, New York 11973, United States
| | - Nobumichi Tamura
- Advanced
Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Chixia Tian
- Energy
Storage and Distributed Resources Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Tsu-Chien Weng
- Center for High Pressure Science & Technology Advanced Research, Shanghai 201203, China
| | - Xiao-Qing Yang
- Chemistry
Department, Brookhaven National Laboratory, Upton, New York 11973, United States
| | - Ying Shirley Meng
- Department
of NanoEngineering, University of California San Diego, La Jolla, California 92093, United States
| | - Dennis Nordlund
- Stanford
Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, California 94035, United States
| | - Wanli Yang
- Advanced
Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Marca M. Doeff
- Energy
Storage and Distributed Resources Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
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50
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Alvarado J, Ma C, Wang S, Nguyen K, Kodur M, Meng YS. Improvement of the Cathode Electrolyte Interphase on P2-Na 2/3Ni 1/3Mn 2/3O 2 by Atomic Layer Deposition. ACS Appl Mater Interfaces 2017; 9:26518-26530. [PMID: 28707882 DOI: 10.1021/acsami.7b05326] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Atomic layer deposition (ALD) is a commonly used coating technique for lithium ion battery electrodes. Recently, it has been applied to sodium ion battery anode materials. ALD is known to improve the cycling performance, Coulombic efficiency of batteries, and maintain electrode integrity. Here, the electrochemical performance of uncoated P2-Na2/3Ni1/3Mn2/3O2 electrodes is compared to that of ALD-coated Al2O3 P2-Na2/3Ni1/3Mn2/3O2 electrodes. Given that ALD coatings are in the early stage of development for NIB cathode materials, little is known about how ALD coatings, in particular aluminum oxide (Al2O3), affect the electrode-electrolyte interface. Therefore, full characterizations of its effects are presented in this work. For the first time, X-ray photoelectron spectroscopy (XPS) is used to elucidate the cathode electrolyte interphase (CEI) on ALD-coated electrodes. It contains less carbonate species and more inorganic species, which allows for fast Na kinetics, resulting in significant increase in Coulombic efficiency and decrease in cathode impedance. The effectiveness of Al2O3 ALD coating is also surprisingly reflected in the enhanced mechanical stability of the particle which prevents particle exfoliation.
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Affiliation(s)
- Judith Alvarado
- Materials Science and Engineering Program and ‡Department of NanoEngineering, University of California San Diego , La Jolla, California 92093, United States
| | - Chuze Ma
- Materials Science and Engineering Program and ‡Department of NanoEngineering, University of California San Diego , La Jolla, California 92093, United States
| | - Shen Wang
- Materials Science and Engineering Program and ‡Department of NanoEngineering, University of California San Diego , La Jolla, California 92093, United States
| | - Kimberly Nguyen
- Materials Science and Engineering Program and ‡Department of NanoEngineering, University of California San Diego , La Jolla, California 92093, United States
| | - Moses Kodur
- Materials Science and Engineering Program and ‡Department of NanoEngineering, University of California San Diego , La Jolla, California 92093, United States
| | - Ying Shirley Meng
- Materials Science and Engineering Program and ‡Department of NanoEngineering, University of California San Diego , La Jolla, California 92093, United States
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