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Xiao Z, He X, Yu F, Zhang B, Ou X. Interfacial Robustness and Improved Kinetics of Single-Crystal Ni-Rich Co-Free Cathodes Enabled by Surface Crystal-Facet Modulation. NANO LETTERS 2024; 24:11358-11366. [PMID: 39225503 DOI: 10.1021/acs.nanolett.4c01816] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/04/2024]
Abstract
The elimination of Co from Ni-rich layered cathodes is critical to reduce the production cost and increase the energy density for sustainable development. Herein, a delicate strategy of crystal-facet modulation is designed and explored, which is achieved by simultaneous Al/W-doping into the precursors, while the surface role of the crystal-facet is intensively revealed. Unlike traditional studies on crystal structure growth along a certain direction, this work modulates the crystal-facet at the nanoscale based on the effect of W-doping dynamic migration with surface energy, successfully constructing the core-shell (003)/(104) facet surface. Compared to the (003) plane, the induced (104) facet at the surface can provide more space for Li+-activity, enabling lower interfacial polarization and higher Li+-transport rate. Additionally, bulk Al-doping is beneficial for enhancing the Li+-diffusion from the exterior surface to the interior lattice. With improved interfacial stability and restrained surface erosion, the product exhibits superior capacity retention and boosted rate performance under the elevated temperature.
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Affiliation(s)
- Zhiming Xiao
- Engineering Research Center of the Ministry of Education for Advanced Battery Materials, School of Metallurgy and Environment, Central South University, Changsha 410083, P. R. China
| | - Xinyou He
- Engineering Research Center of the Ministry of Education for Advanced Battery Materials, School of Metallurgy and Environment, Central South University, Changsha 410083, P. R. China
| | - Fangyong Yu
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo 255000, P.R. China
| | - Bao Zhang
- Engineering Research Center of the Ministry of Education for Advanced Battery Materials, School of Metallurgy and Environment, Central South University, Changsha 410083, P. R. China
| | - Xing Ou
- Engineering Research Center of the Ministry of Education for Advanced Battery Materials, School of Metallurgy and Environment, Central South University, Changsha 410083, P. R. China
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2
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Du H, Wang Y, Kang Y, Zhao Y, Tian Y, Wang X, Tan Y, Liang Z, Wozny J, Li T, Ren D, Wang L, He X, Xiao P, Mao E, Tavajohi N, Kang F, Li B. Side Reactions/Changes in Lithium-Ion Batteries: Mechanisms and Strategies for Creating Safer and Better Batteries. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2401482. [PMID: 38695389 DOI: 10.1002/adma.202401482] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2024] [Revised: 04/17/2024] [Indexed: 05/21/2024]
Abstract
Lithium-ion batteries (LIBs), in which lithium ions function as charge carriers, are considered the most competitive energy storage devices due to their high energy and power density. However, battery materials, especially with high capacity undergo side reactions and changes that result in capacity decay and safety issues. A deep understanding of the reactions that cause changes in the battery's internal components and the mechanisms of those reactions is needed to build safer and better batteries. This review focuses on the processes of battery failures, with voltage and temperature as the underlying factors. Voltage-induced failures result from anode interfacial reactions, current collector corrosion, cathode interfacial reactions, overcharge, and over-discharge, while temperature-induced failure mechanisms include SEI decomposition, separator damage, and interfacial reactions between electrodes and electrolytes. The review also presents protective strategies for controlling these reactions. As a result, the reader is offered a comprehensive overview of the safety features and failure mechanisms of various LIB components.
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Affiliation(s)
- Hao Du
- Institute of Materials Research, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, 518055, China
| | - Yadong Wang
- Institute of Materials Research, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, 518055, China
| | - Yuqiong Kang
- Institute of Materials Research, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, 518055, China
| | - Yun Zhao
- Institute of Materials Research, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, 518055, China
| | - Yao Tian
- Institute of Materials Research, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, 518055, China
| | - Xianshu Wang
- National and Local Joint Engineering Research Center of Lithium-Ion Batteries and Materials Preparation Technology, Key Laboratory of Advanced Battery Materials of Yunnan Province, Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming, 650093, P. R. China
| | - Yihong Tan
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Zheng Liang
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - John Wozny
- Department of Chemistry and Biochemistry, Northern Illinois University, DeKalb, IL, 60115, USA
| | - Tao Li
- Department of Chemistry and Biochemistry, Northern Illinois University, DeKalb, IL, 60115, USA
| | - Dongsheng Ren
- Institute of Nuclear & New Energy Technology, Tsinghua University, Beijing, 100084, China
| | - Li Wang
- Institute of Nuclear & New Energy Technology, Tsinghua University, Beijing, 100084, China
| | - Xiangming He
- Institute of Nuclear & New Energy Technology, Tsinghua University, Beijing, 100084, China
| | - Peitao Xiao
- College of Aerospace Science and Engineering, National University of Defense Technology, Changsha, 410073, China
| | - Eryang Mao
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
| | - Naser Tavajohi
- Department of Chemistry, Umeå University, Umeå, 90187, Sweden
| | - Feiyu Kang
- Institute of Materials Research, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, 518055, China
| | - Baohua Li
- Institute of Materials Research, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, 518055, China
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3
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Liang L, Su M, Sun Z, Wang L, Hou L, Liu H, Zhang Q, Yuan C. High-entropy doping promising ultrahigh-Ni Co-free single-crystalline cathode toward commercializable high-energy lithium-ion batteries. SCIENCE ADVANCES 2024; 10:eado4472. [PMID: 38905349 PMCID: PMC11192087 DOI: 10.1126/sciadv.ado4472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Accepted: 05/16/2024] [Indexed: 06/23/2024]
Abstract
The development of advanced layered Ni-rich cathodes is essential for high-energy lithium-ion batteries (LIBs). However, the prevalent Ni-rich cathodes are still plagued by inherent issues of chemomechanical and thermal instabilities and limited cycle life. For this, here, we introduce an efficient approach combining single-crystalline (SC) design with in situ high-entropy (HE) doping to engineer an ultrahigh-Ni cobalt-free layered cathode of LiNi0.88Mn0.03Mg0.02Fe0.02Ti0.02Mo0.02Nb0.01O2 (denoted as HE-SC-N88). Thanks to the SC- and HE-doping merits, HE-SC-N88 is featured with a grain-boundary-free and stabilized structure with minimal lattice strain, preventing mechanical degradation, reducing surface parasitic reactions, and mitigating oxygen loss. Accordingly, our HE-SC-N88 cathode demonstrates exceptional electrochemical properties particularly with prolonged cycling stability under strenuous conditions in both half and full cells, and the delayed O loss-induced phase transitions upon heating. More meaningfully, our design of HE doping in redefining the ultrahigh-Ni Co-free SC cathodes will make a tremendous progress toward industrial application of next-generation LIBs.
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Affiliation(s)
- Longwei Liang
- School of Material Science and Engineering, University of Jinan, Jinan 250022, People’s Republic of China
| | - Maoshui Su
- School of Material Science and Engineering, University of Jinan, Jinan 250022, People’s Republic of China
| | - Zhefei Sun
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Materials, Xiamen University, Xiamen, Fujian 361005, China
| | - Lixian Wang
- School of Material Science and Engineering, University of Jinan, Jinan 250022, People’s Republic of China
| | - Linrui Hou
- School of Material Science and Engineering, University of Jinan, Jinan 250022, People’s Republic of China
| | - Haodong Liu
- Center for Memory and Recording Research Building, UC San Diego, La Jolla, CA 92093, USA
| | - Qiaobao Zhang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Materials, Xiamen University, Xiamen, Fujian 361005, China
| | - Changzhou Yuan
- School of Material Science and Engineering, University of Jinan, Jinan 250022, People’s Republic of China
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4
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Zhang Q, Wang Y, Deng Q, Chu Y, Dong P, Chen C, Wang Z, Xia Z, Yang C. In situ and Real-time Monitoring the Chemical and Thermal Evolution of Lithium-ion Batteries with Single-crystalline Ni-rich Layered Oxide Cathode. Angew Chem Int Ed Engl 2024; 63:e202401716. [PMID: 38372050 DOI: 10.1002/anie.202401716] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Revised: 02/17/2024] [Accepted: 02/17/2024] [Indexed: 02/20/2024]
Abstract
High-capacity Ni-rich layered oxides are promising cathode materials for fabrication of lithium-ion batteries (LIBs) with high energy density. However, thermal runaway of LIBs with these cathodes leads to great safety concerns. In this study, single crystalline LiNi0.9Co0.05Mn0.05O2 (NCM-SC) has been prepared and a flexible optical fiber was buried inside the pouch-type LIBs with NCM-SC cathode to in situ study its real-time temperature evolution during charge/discharge process. NCM-SC exhibits an enhanced Li+ ions transportation efficiency and electrode reaction kinetics, which can effectively reduce the generation of polarization heat and mitigate the internal temperature rise of the pouch-type battery. Meanwhile, solid-electrolyte interface (SEI) film decomposition and gas accumulation are effectively alleviated, due to the enhanced thermal stability of SEI film formed on NCM-SC. Moreover, the single crystal architecture can effectively retard layered to spinal and rock-salt phase transition, mitigate the crack formation and structural collapse. Consequently, NCM-SC exhibits an excellent electrochemical performance and enhanced thermal stability.
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Affiliation(s)
- Qimeng Zhang
- Guangzhou Key Laboratory for Surface Chemistry of Energy Materials, New Energy Research Institute, School of Environment and Energy, South China University of Technology, Guangzhou, 510006, P. R. China
| | - Yuzhen Wang
- School of Physics and Optoelectronics, South China University of Technology, Guangzhou, 510641, P. R. China
| | - Qiang Deng
- Guangzhou Key Laboratory for Surface Chemistry of Energy Materials, New Energy Research Institute, School of Environment and Energy, South China University of Technology, Guangzhou, 510006, P. R. China
| | - Youqi Chu
- Guangzhou Key Laboratory for Surface Chemistry of Energy Materials, New Energy Research Institute, School of Environment and Energy, South China University of Technology, Guangzhou, 510006, P. R. China
| | - Pengyuan Dong
- Guangzhou Key Laboratory for Surface Chemistry of Energy Materials, New Energy Research Institute, School of Environment and Energy, South China University of Technology, Guangzhou, 510006, P. R. China
| | - Changdong Chen
- Guangzhou Key Laboratory for Surface Chemistry of Energy Materials, New Energy Research Institute, School of Environment and Energy, South China University of Technology, Guangzhou, 510006, P. R. China
| | - Ziming Wang
- Guangzhou Key Laboratory for Surface Chemistry of Energy Materials, New Energy Research Institute, School of Environment and Energy, South China University of Technology, Guangzhou, 510006, P. R. China
| | - Zhiguo Xia
- School of Physics and Optoelectronics, South China University of Technology, Guangzhou, 510641, P. R. China
| | - Chenghao Yang
- Guangzhou Key Laboratory for Surface Chemistry of Energy Materials, New Energy Research Institute, School of Environment and Energy, South China University of Technology, Guangzhou, 510006, P. R. China
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5
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Li C, Nie S, Li H. Towards Efficient Polymeric Binders for Transition Metal Oxides-based Li-ion Battery Cathodes. Chemistry 2024; 30:e202303733. [PMID: 38055214 DOI: 10.1002/chem.202303733] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Revised: 12/05/2023] [Accepted: 12/05/2023] [Indexed: 12/07/2023]
Abstract
Transition metal oxide cathodes (TMOCs) such as LiNi0.8Mn0.1Co0.1O2 and LiMn1.5Ni0.5O4 have been widely employed in Li-ion batteries (LIBs) owing to superior operating voltages, high reversible capacities and relatively low cost. Nevertheless, despite significant advancements in practical application, TMOC-based LIBs face great challenges such as transition metal dissolution and volume expansion during cycling, which jeopardizes the future advance of high-voltage TMOCs. As a critical component of cathode, polymeric binder acts as a crucial part in maintaining the mechanical and ion/electron conductive integrity between active particles, carbon additives, and the aluminum collector, hence minimizing cathode pulverization during battery cycling. Moreover, Polymeric binder with specialized functions is thought to offer a new solution to enhancing the electrochemical stability of the TMOCs. Therefore, this review aims at providing a comprehensive summary of the ideal requirements, design strategies and recent progress of polymeric binders for TMOCs. Future design perspectives and promising research technologies for advanced binders for high-voltage TMOCs are introduced.
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Affiliation(s)
- Changgong Li
- School of Chemistry and Chemical Engineering, Henan Institute of Science and Technology, Xinxiang, 453003, China
| | - Shan Nie
- School of Chemistry and Chemical Engineering, Henan Institute of Science and Technology, Xinxiang, 453003, China
| | - Hao Li
- Key Lab for Special Functional Materials of Ministry of Education School of Materials Science and Engineering, Henan University, Kaifeng, 475004, China
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6
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Zhen D, Zhang S, Yang A, Li L, Cai Q, Grimes CA, Liu Y. A PEDOT enhanced covalent organic framework (COF) fluorescent probe for in vivo detection and imaging of Fe 3. Int J Biol Macromol 2024; 259:129104. [PMID: 38161014 DOI: 10.1016/j.ijbiomac.2023.129104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 12/13/2023] [Accepted: 12/26/2023] [Indexed: 01/03/2024]
Abstract
Simple and accurate in vivo monitoring of Fe3+ is essential for gaining a better understanding of its role in physiological and pathological processes. A novel fluorescent probe was synthesized via in situ solid-state polymerization of 3,4-ethylenedioxythiophene (PEDOT) in the pore channels of a covalent organic framework (COF). The PEDOT@COF fluorescent probe exhibited an absolute quantum yield (QY) 3 times higher than COF. In the presence of Fe3+ the PEDOT@COF 475 nm fluorescence emission, 365 nm excitation, is quenched within 180 s. Fluorescence quenching is linear with Fe3+ in the concentration range of 0-960 μM, with a detection limit of 0.82 μM. The fluorescence quenching mechanism was attributed to inner filter effect (IEF), photoinduced electron transfer (PET) and static quenching (SQE) between PEDOT@COF and Fe3+. A paper strip-based detector was designed to facilitate practical applicability, and the PEDOT@COF probe successfully applied to fluorescence imaging of Fe3+ levels in vivo. This work details a tool of great promise for enabling detailed investigations into the role of Fe3+ in physiological and pathological diseases.
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Affiliation(s)
- Deshuai Zhen
- Hunan Key Laboratory of Typical Environment Pollution and Health Hazards, School of Public Health, Hengyang Medical School, University of South China, Hengyang 421001, PR China; State Key Laboratory of Chemo/Biosensing and Chemometrics, School of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, PR China
| | - Shaoqi Zhang
- Hunan Key Laboratory of Typical Environment Pollution and Health Hazards, School of Public Health, Hengyang Medical School, University of South China, Hengyang 421001, PR China; State Key Laboratory of Chemo/Biosensing and Chemometrics, School of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, PR China
| | - Aofeng Yang
- Hunan Key Laboratory of Typical Environment Pollution and Health Hazards, School of Public Health, Hengyang Medical School, University of South China, Hengyang 421001, PR China
| | - Le Li
- Hunan Key Laboratory of Typical Environment Pollution and Health Hazards, School of Public Health, Hengyang Medical School, University of South China, Hengyang 421001, PR China
| | - Qingyun Cai
- State Key Laboratory of Chemo/Biosensing and Chemometrics, School of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, PR China
| | - Craig A Grimes
- Flux Photon Corporation, 5950 Shiloh Road East, Alpharetta, GA 30005, United States
| | - Yu Liu
- Hunan Key Laboratory of Typical Environment Pollution and Health Hazards, School of Public Health, Hengyang Medical School, University of South China, Hengyang 421001, PR China; State Key Laboratory of Chemo/Biosensing and Chemometrics, School of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, PR China.
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7
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Yang J, Xu S, Yu J, Li Y, He Z, Wu F, Zhang T, Hao S, Jiang S, Pan J, Xi X, Liu S. Enhanced mechanical strength of a highly de-lithiated single-crystal Ni-rich cathode to suppress irreversible planar gliding. Chem Commun (Camb) 2023; 59:9980-9983. [PMID: 37503825 DOI: 10.1039/d3cc01338c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/29/2023]
Abstract
The mechanical properties of de-lithiated single-crystal Ni-rich cathodes are causing extensive concern. Here, we first show that the compression hardness of single crystal Ni-rich cathode particles decreases significantly at highly de-lithiated states by micro-compression testing. Thus, phase-boundary hardening was introduced to inhibit the planar gliding, resulting in excellent electrochemical performance.
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Affiliation(s)
- Jiachao Yang
- School of Metallurgy and Environment, Central South University, Changsha, 410083, P. R. China.
- Engineering Research Center of the Ministry of Education for Advanced Battery Materials, Central South University, Changsha 410083, P. R. China
| | - Shenyang Xu
- School of Advanced Materials, Peking University, Shenzhen Graduate School, Shenzhen 518055, China
| | - Jian Yu
- Ningbo Ronbay New Energy Technol Co Ltd, Tanjialing East Rd 39, Ningbo 315400, Zhejiang, P. R. China
| | - Yunjiao Li
- School of Metallurgy and Environment, Central South University, Changsha, 410083, P. R. China.
- Engineering Research Center of the Ministry of Education for Advanced Battery Materials, Central South University, Changsha 410083, P. R. China
| | - Zhenjiang He
- School of Metallurgy and Environment, Central South University, Changsha, 410083, P. R. China.
- Engineering Research Center of the Ministry of Education for Advanced Battery Materials, Central South University, Changsha 410083, P. R. China
| | - Feixiang Wu
- School of Metallurgy and Environment, Central South University, Changsha, 410083, P. R. China.
- Engineering Research Center of the Ministry of Education for Advanced Battery Materials, Central South University, Changsha 410083, P. R. China
| | - Tao Zhang
- Ningbo Ronbay New Energy Technol Co Ltd, Tanjialing East Rd 39, Ningbo 315400, Zhejiang, P. R. China
| | - Shuaipeng Hao
- School of Metallurgy and Environment, Central South University, Changsha, 410083, P. R. China.
- Engineering Research Center of the Ministry of Education for Advanced Battery Materials, Central South University, Changsha 410083, P. R. China
| | - Shijie Jiang
- School of Metallurgy and Environment, Central South University, Changsha, 410083, P. R. China.
- Engineering Research Center of the Ministry of Education for Advanced Battery Materials, Central South University, Changsha 410083, P. R. China
| | - Jiawei Pan
- School of Metallurgy and Environment, Central South University, Changsha, 410083, P. R. China.
- Engineering Research Center of the Ministry of Education for Advanced Battery Materials, Central South University, Changsha 410083, P. R. China
| | - Xiaoming Xi
- Changsha Research Institute of Mining and Metallurgy, Changsha 410083, P. R. China
| | - Shuaiwei Liu
- Institute for Applied Materials (IAM), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, D-76344, Eggenstein-Leopoldshafen, Germany
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8
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Brathwaite KG, Wyatt QK, Atassi A, Gregory SA, Throm E, Stalla D, Yee SK, Losego MD, Young MJ. Effects of film thickness on electrochemical properties of nanoscale polyethylenedioxythiophene (PEDOT) thin films grown by oxidative molecular layer deposition (oMLD). NANOSCALE 2023; 15:6187-6200. [PMID: 36916453 DOI: 10.1039/d3nr00708a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Poly(3,4-ethylene dioxythiophene) (PEDOT) has a high theoretical charge storage capacity, making it of interest for electrochemical applications including energy storage and water desalination. Nanoscale thin films of PEDOT are particularly attractive for these applications to enable faster charging. Recent work has demonstrated that nanoscale thin films of PEDOT can be formed using sequential gas-phase exposures via oxidative molecular layer deposition, or oMLD, which provides advantages in conformality and uniformity on high aspect ratio substrates over other deposition techniques. But to date, the electrochemical properties of these oMLD PEDOT thin films have not been well-characterized. In this work, we examine the electrochemical properties of 5-100 nm thick PEDOT films formed using 20-175 oMLD deposition cycles. We find that film thickness of oMLD PEDOT films affects the orientation of ordered domains leading to a substantial change in charge storage capacity. Interestingly, we observe a minimum in charge storage capacity for an oMLD PEDOT film thickness of ∼30 nm (60 oMLD cycles at 150 °C), coinciding with the highest degree of face-on oriented PEDOT domains as measured using grazing incidence wide angle X-ray scattering (GIWAXS). Thinner and thicker oMLD PEDOT films exhibit higher fractions of oblique (off-angle) orientations and corresponding increases in charge capacity of up to 120 mA h g-1. Electrochemical measurements suggest that higher charge capacity in films with mixed domain orientation arise from the facile transport of ions from the liquid electrolyte into the PEDOT layer. Greater exposure of the electrolyte to PEDOT domain edges is posited to facilitate faster ion transport in these mixed domain films. These insights will inform future design of PEDOT coated high-aspect ratio structures for electrochemical energy storage and water treatment.
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Affiliation(s)
- Katrina G Brathwaite
- Chemical and Biomedical Engineering, University of Missouri, Columbia, Missouri, 65211, USA.
| | - Quinton K Wyatt
- Department of Chemistry, University of Missouri, Columbia, Missouri, 65211, USA
| | - Amalie Atassi
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia, 30332, USA
| | - Shawn A Gregory
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia, 30332, USA
| | - Eric Throm
- Chemical and Biomedical Engineering, University of Missouri, Columbia, Missouri, 65211, USA.
| | - David Stalla
- Electron Microscopy Core Facility, University of Missouri, Columbia, Missouri, 65211, USA
| | - Shannon K Yee
- George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, Georgia, 30332, USA
| | - Mark D Losego
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia, 30332, USA
| | - Matthias J Young
- Chemical and Biomedical Engineering, University of Missouri, Columbia, Missouri, 65211, USA.
- Department of Chemistry, University of Missouri, Columbia, Missouri, 65211, USA
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9
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Tan Z, Li Y, Xi X, Jiang S, Li X, Shen X, He Z. Construction of Planar Gliding Restriction Buffer and Kinetic Self-Accelerator Stabilizing Single-Crystalline LiNi 0.9Co 0.05Mn 0.05O 2 Cathode. ACS APPLIED MATERIALS & INTERFACES 2023; 15:8555-8566. [PMID: 36748116 DOI: 10.1021/acsami.2c22815] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
The single-crystalline Ni-rich cathode has aroused much attention for extenuating the cycling and safety crises in comparison to the polycrystalline cathode. However, planar gliding and kinetic hindrance hinder its chemo-mechanical properties with cycling, which induce delamination cracking and damage the mechanical integrity in single crystals. Herein, a robust Li2.64(Sc0.9Ti0.1)2(PO4)3 (LSTP) ion/electron conductive network was constructed to decorate single-crystal LiNi0.9Co0.05Mn0.05O2 (SC90) particles. Via physicochemical characterizations and theoretical calculations, this LSTP coating that evenly grows on the SC90 particle with good lattice matching and strong bonding effectively restricts the anisotropic lattice collapse along the c-axis and the cation mixing activity of SC90, thus suppressing planar gliding and delamination cracking during repeated high-voltage lithiation/delithiation processes. Moreover, such a 3D LSTP network can also facilitate the lithium-ion transport and prevent the electrolyte's corrosion, lightening the kinetic hindrance and triggering the surface phase transformation. Combined with the Li metal anode, the LSTP-modified SC90 cell exhibits a desirable capacity retention of 90.5% at 5 C after 300 cycles and stabilizes the operation at 4.3/4.5 V. Our results provide surface modification engineering to mitigate planar gliding and kinetic hindrance of the single-crystalline ultra-high Ni-rich cathode, which inspires peers to design other layered cathode materials.
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Affiliation(s)
- Zhouliang Tan
- School of Metallurgy and Environment, Central South University, Changsha 410083, PR China
- Engineering Research Center of the Ministry of Education for Advanced Battery Materials, Central South University, Changsha 410083, China
| | - Yunjiao Li
- School of Metallurgy and Environment, Central South University, Changsha 410083, PR China
- Engineering Research Center of the Ministry of Education for Advanced Battery Materials, Central South University, Changsha 410083, China
| | - Xiaoming Xi
- Changsha Research Institute of Mining and Metallurgy, Changsha 410083, PR China
| | - Shijie Jiang
- School of Metallurgy and Environment, Central South University, Changsha 410083, PR China
- Engineering Research Center of the Ministry of Education for Advanced Battery Materials, Central South University, Changsha 410083, China
| | - Xiaohui Li
- School of Metallurgy and Environment, Central South University, Changsha 410083, PR China
- Engineering Research Center of the Ministry of Education for Advanced Battery Materials, Central South University, Changsha 410083, China
| | - Xingjie Shen
- School of Metallurgy and Environment, Central South University, Changsha 410083, PR China
- Engineering Research Center of the Ministry of Education for Advanced Battery Materials, Central South University, Changsha 410083, China
| | - Zhenjiang He
- School of Metallurgy and Environment, Central South University, Changsha 410083, PR China
- Engineering Research Center of the Ministry of Education for Advanced Battery Materials, Central South University, Changsha 410083, China
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