1
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Yu D, Min J, Lin F, Madsen LA. Mechanically and Thermally Robust Gel Electrolytes Built from A Charged Double Helical Polymer. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2312513. [PMID: 38288908 DOI: 10.1002/adma.202312513] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Revised: 01/26/2024] [Indexed: 03/16/2024]
Abstract
Polymer electrolytes have received tremendous interest in the development of solid-state batteries, but often fall short in one or more key properties required for practical applications. Herein, a rigid gel polymer electrolyte prepared by immobilizing a liquid mixture of a lithium salt and poly(ethylene glycol) dimethyl ether with only 8 wt% poly(2,2'-disulfonyl-4,4'-benzidine terephthalamide) (PBDT) is reported. The high charge density and rigid double helical structure of PBDT lead to formation of a nanofibrillar structure that endows this electrolyte with stronger mechanical properties, wider temperature window, and higher battery rate capability compared to all other poly(ethylene oxide) (PEO)-based electrolytes. The ion transport mechanism in this rigid polymer electrolyte is systematically studied using multiple complementary techniques. Li/LiFePO4 cells show excellent capacity retention over long-term cycling, with thermal cycling reversibility between ambient temperature and elevated temperatures, demonstrating compelling potential for solid-state batteries targeting fast charging at high temperatures and slower discharging at ambient temperature.
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Affiliation(s)
- Deyang Yu
- Department of Chemistry and Macromolecules Innovation Institute, Virginia Polytechnic Institute and State University, Blacksburg, VA, 24061, USA
| | - Jungki Min
- Department of Chemistry and Macromolecules Innovation Institute, Virginia Polytechnic Institute and State University, Blacksburg, VA, 24061, USA
| | - Feng Lin
- Department of Chemistry and Macromolecules Innovation Institute, Virginia Polytechnic Institute and State University, Blacksburg, VA, 24061, USA
| | - Louis A Madsen
- Department of Chemistry and Macromolecules Innovation Institute, Virginia Polytechnic Institute and State University, Blacksburg, VA, 24061, USA
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2
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Liu C, Yoshio M. Ionic Liquid Crystal-Polymer Composite Electromechanical Actuators: Design of Two-Dimensional Molecular Assemblies for Efficient Ion Transport and Effect of Electrodes on Actuator Performance. ACS APPLIED MATERIALS & INTERFACES 2024; 16:27750-27760. [PMID: 38761145 DOI: 10.1021/acsami.4c03821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2024]
Abstract
We present the development of free-standing ionic liquid crystal-polymer composite electrolyte films aimed at achieving high-frequency response electromechanical actuators. Our approach entails designing novel layered ionic liquid-crystalline (LC) assemblies by complexing a mesomorphic dimethylphosphate with either a lithium salt or a room-temperature ionic liquid through the formation of ion-dipole interactions or hydrogen bonds. These electrolytes, exhibiting room-temperature ionic conductivities on the order of 10-4 S cm-1 and wide LC temperature ranges up to 77 °C, were successfully integrated into porous polymer networks. We systematically investigated the impact of ions and electrodes on the performance of ionic electroactive actuators. Specifically, the Li+-based liquid crystal-polymer composite actuator with PEDOT:PSS electrodes demonstrated the highest bending deformation, achieving a strain of 0.68% and exhibiting a broad frequency response up to 110 Hz, with a peak-to-peak displacement of 3 μm. In contrast, the ionic-liquid-based liquid crystal-polymer composite actuator with active carbon electrodes showcased a bending response at a maximum frequency of 50 Hz and a force generation of 0.48 mN, without exhibiting the back relaxation phenomenon. These findings offer valuable insights for advancing high-performance electromechanical systems with applications ranging from soft robotics to haptic interfaces.
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Affiliation(s)
- Chengyang Liu
- Research Center for Macromolecules & Biomaterials, National Institute for Materials Science, 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047, Japan
- Graduate School of Chemical Sciences and Engineering, Hokkaido University, Kita 13, Nishi 8, Kita-ku, Sapporo, Hokkaido 060-8628, Japan
| | - Masafumi Yoshio
- Research Center for Macromolecules & Biomaterials, National Institute for Materials Science, 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047, Japan
- Graduate School of Chemical Sciences and Engineering, Hokkaido University, Kita 13, Nishi 8, Kita-ku, Sapporo, Hokkaido 060-8628, Japan
- Japan Science and Technology Agency, PRESTO, 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan
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3
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Bamford JT, Jones SD, Schauser NS, Pedretti BJ, Gordon LW, Lynd NA, Clément RJ, Segalman RA. Improved Mechanical Strength without Sacrificing Li-Ion Transport in Polymer Electrolytes. ACS Macro Lett 2024; 13:638-643. [PMID: 38709178 DOI: 10.1021/acsmacrolett.4c00158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/07/2024]
Abstract
Next-generation batteries demand solid polymer electrolytes (SPEs) with rapid ion transport and robust mechanical properties. However, many SPEs with liquid-like Li+ transport mechanisms suffer a fundamental trade-off between conductivity and strength. Dynamic polymer networks can improve bulk mechanics with minimal impact to segmental relaxation or ionic conductivity. This study demonstrates a system where a single polymer-bound ligand simultaneously dissociates Li+ and forms long-lived Ni2+ networks. The polymer comprises an ethylene oxide backbone and imidazole (Im) ligands, blended with Li+ and Ni2+ salts. Ni2+-Im dynamic cross-links result in the formation of a rubbery plateau resulting in, consequently, storage modulus improvement by a factor of 133× with the introduction of Ni2+ at rNi = 0.08, from 0.014 to 1.907 MPa. Even with Ni2+ loading, the high Li+ conductivity of 3.7 × 10-6 S/cm is retained at 90 °C. This work demonstrates that decoupling of ion transport and bulk mechanics can be readily achieved by the addition of multivalent metal cations to polymers with chelating ligands.
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Affiliation(s)
- James T Bamford
- Materials Department, University of California, Santa Barbara, Santa Barbara, California 93106, United States
- Department of Chemical Engineering, University of California, Santa Barbara, Santa Barbara, California 93106, United States
| | - Seamus D Jones
- Department of Chemical Engineering, University of California, Santa Barbara, Santa Barbara, California 93106, United States
- Materials Engineering Department, California Polytechnic State University, San Luis Obispo, California 93106, United States
| | - Nicole S Schauser
- Materials Department, University of California, Santa Barbara, Santa Barbara, California 93106, United States
- Materials Research Laboratory, University of California, Santa Barbara, Santa Barbara, California 93106, United States
| | - Benjamin J Pedretti
- McKetta Department of Chemical Engineering, University of Texas at Austin, Austin, Texas 78712, United States
- Department of Chemical Engineering, Massachusetts Institute of Technology, Boston, Massachusetts 02139, United States
| | - Leo W Gordon
- Materials Department, University of California, Santa Barbara, Santa Barbara, California 93106, United States
- Materials Research Laboratory, University of California, Santa Barbara, Santa Barbara, California 93106, United States
| | - Nathaniel A Lynd
- McKetta Department of Chemical Engineering, University of Texas at Austin, Austin, Texas 78712, United States
| | - Raphaële J Clément
- Materials Department, University of California, Santa Barbara, Santa Barbara, California 93106, United States
| | - Rachel A Segalman
- Materials Department, University of California, Santa Barbara, Santa Barbara, California 93106, United States
- Department of Chemical Engineering, University of California, Santa Barbara, Santa Barbara, California 93106, United States
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4
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Zhou X, Huang F, Zhang X, Zhang B, Cui Y, Wang Z, Yang Q, Ma Z, Liu J. Interface-Targeting Carrier-Catalytic Integrated Design Contributing to Lithium Dihalide-Rich SEI toward High Interface Stability for Long-Life Solid-State Lithium-Metal Batteries. Angew Chem Int Ed Engl 2024; 63:e202401576. [PMID: 38546410 DOI: 10.1002/anie.202401576] [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: 01/23/2024] [Indexed: 04/19/2024]
Abstract
The generation of solid electrolyte interphase (SEI) largely determines the comprehensive performance of all-solid-state batteries. Herein, a novel "carrier-catalytic" integrated design is strategically exploited to in situ construct a stable LiF-LiBr rich SEI by improving the electron transfer kinetics to accelerate the bond-breaking dynamics. Specifically, the high electron transport capacity of Br-TPOM skeleton increases the polarity of C-Br, thus promoting the generation of LiBr. Then, the enhancement of electron transfer kinetics further promotes the fracture of C-F from TFSI- to form LiF. Finally, the stable and homogeneous artificial-SEI with enriched lithium dihalide is constructed through the in situ co-growth mechanism of LiF and LiBr, which facilitatse the Li-ion transport kinetics and regulates the lithium deposition behavior. Impressively, the PEO-Br-TPOM paired with LiFePO4 delivers ultra-long cycling stability over 1000 cycles with 81 % capacity retention at 1 C while the pouch cells possess 88 % superior capacity retention after 550 cycles with initial discharge capacity of 145 mAh g-1at 0.2 C in the absence of external pressure. Even under stringent conditions, the practical pouch cells possess the practical capacity with stable electric quantities plateau in 30 cycles demonstrates its application potential in energy storage field.
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Affiliation(s)
- Xuanyi Zhou
- Guangdong Provincial Key Laboratory of Advanced Energy Storage Materials, School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510641, China
| | - Fenfen Huang
- Key Laboratory of Low Dimensional Materials and Application Technology of Ministry of Education, School of Materials Science and Engineering, Xiangtan University, Xiangtan, 411105, China
| | - Xuedong Zhang
- Key Laboratory of Low Dimensional Materials and Application Technology of Ministry of Education, School of Materials Science and Engineering, Xiangtan University, Xiangtan, 411105, China
| | - Biao Zhang
- Key Laboratory of Low Dimensional Materials and Application Technology of Ministry of Education, School of Materials Science and Engineering, Xiangtan University, Xiangtan, 411105, China
| | - Yingjie Cui
- Key Laboratory of Low Dimensional Materials and Application Technology of Ministry of Education, School of Materials Science and Engineering, Xiangtan University, Xiangtan, 411105, China
| | - Zehua Wang
- Key Laboratory of Low Dimensional Materials and Application Technology of Ministry of Education, School of Materials Science and Engineering, Xiangtan University, Xiangtan, 411105, China
| | - Qiong Yang
- Key Laboratory of Low Dimensional Materials and Application Technology of Ministry of Education, School of Materials Science and Engineering, Xiangtan University, Xiangtan, 411105, China
| | - Zengsheng Ma
- Key Laboratory of Low Dimensional Materials and Application Technology of Ministry of Education, School of Materials Science and Engineering, Xiangtan University, Xiangtan, 411105, China
| | - Jun Liu
- Guangdong Provincial Key Laboratory of Advanced Energy Storage Materials, School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510641, China
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Philippi F, Middendorf M, Shigenobu K, Matsuyama Y, Palumbo O, Pugh D, Sudoh T, Dokko K, Watanabe M, Schönhoff M, Shinoda W, Ueno K. Evolving better solvate electrolytes for lithium secondary batteries. Chem Sci 2024; 15:7342-7358. [PMID: 38756793 PMCID: PMC11095511 DOI: 10.1039/d4sc01492h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Accepted: 04/10/2024] [Indexed: 05/18/2024] Open
Abstract
The overall performance of lithium batteries remains unmatched to this date. Decades of optimisation have resulted in long-lasting batteries with high energy density suitable for mobile applications. However, the electrolytes used at present suffer from low lithium transference numbers, which induces concentration polarisation and reduces efficiency of charging and discharging. Here we show how targeted modifications can be used to systematically evolve anion structural motifs which can yield electrolytes with high transference numbers. Using a multidisciplinary combination of theoretical and experimental approaches, we screened a large number of anions. Thus, we identified anions which reach lithium transference numbers around 0.9, surpassing conventional electrolytes. Specifically, we find that nitrile groups have a coordination tendency similar to SO2 and are capable of inducing the formation of Li+ rich clusters. In the bigger picture, we identified a balanced anion/solvent coordination tendency as one of the key design parameters.
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Affiliation(s)
- Frederik Philippi
- Department of Chemistry and Life Science, Yokohama National University 79-5 Tokiwadai, Hodogaya-ku Yokohama 240-8501 Japan
| | | | - Keisuke Shigenobu
- Research Institute for Interdisciplinary Science, Okayama University Okayama 700-8530 Japan
| | - Yuna Matsuyama
- Department of Chemistry and Life Science, Yokohama National University 79-5 Tokiwadai, Hodogaya-ku Yokohama 240-8501 Japan
| | - Oriele Palumbo
- Consiglio Nazionale delle Ricerche Istituto dei Sistemi Complessi, P.le Aldo Moro 5 00185 Rome Italy
| | - David Pugh
- Department of Chemistry, Britannia House, Kings College London 7 Trinity Street London SE1 1DB UK
| | - Taku Sudoh
- Department of Chemistry and Life Science, Yokohama National University 79-5 Tokiwadai, Hodogaya-ku Yokohama 240-8501 Japan
| | - Kaoru Dokko
- Department of Chemistry and Life Science, Yokohama National University 79-5 Tokiwadai, Hodogaya-ku Yokohama 240-8501 Japan
- Advanced Chemical Energy Research Centre, Advanced Institute of Sciences, Yokohama National University 79-5 Tokiwadai, Hodogaya-ku Yokohama 240-8501 Japan
| | - Masayoshi Watanabe
- Advanced Chemical Energy Research Centre, Advanced Institute of Sciences, Yokohama National University 79-5 Tokiwadai, Hodogaya-ku Yokohama 240-8501 Japan
| | | | - Wataru Shinoda
- Research Institute for Interdisciplinary Science, Okayama University Okayama 700-8530 Japan
| | - Kazuhide Ueno
- Department of Chemistry and Life Science, Yokohama National University 79-5 Tokiwadai, Hodogaya-ku Yokohama 240-8501 Japan
- Advanced Chemical Energy Research Centre, Advanced Institute of Sciences, Yokohama National University 79-5 Tokiwadai, Hodogaya-ku Yokohama 240-8501 Japan
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6
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Park J, Seong H, Yuk C, Lee D, Byun Y, Lee E, Lee W, Kim BJ. Design of Fluorinated Elastomeric Electrolyte for Solid-State Lithium Metal Batteries Operating at Low Temperature and High Voltage. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024:e2403191. [PMID: 38713915 DOI: 10.1002/adma.202403191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Revised: 04/28/2024] [Indexed: 05/09/2024]
Abstract
This work demonstrates the low-temperature operation of solid-state lithium metal batteries (LMBs) through the development of a fluorinated and plastic-crystal-embedded elastomeric electrolyte (F-PCEE). The F-PCEE is formed via polymerization-induced phase separation between the polymer matrix and plastic crystal phase, offering a high mechanical strain (≈300%) and ionic conductivity (≈0.23 mS cm-1) at -10 °C. Notably, strong phase separation between two phases leads to the selective distribution of lithium (Li) salts within the plastic crystal phase, enabling superior elasticity and high ionic conductivity at low temperatures. The F-PCEE in a Li/LiNi0.8Co0.1Mn0.1O2 full cell maintains 74.4% and 42.5% of discharge capacity at -10 °C and -20 °C, respectively, compared to that at 25 °C. Furthermore, the full cell exhibits 85.3% capacity retention after 150 cycles at -10 °C and a high cut-off voltage of 4.5 V, representing one of the highest cycling performances among the reported solid polymer electrolytes for low-temperature LMBs. This work attributes the prolonged cycling lifetime of F-PCEE at -10 °C to the great mechanical robustness to suppress the Li-dendrite growth and ability to form superior LiF-rich interphases. This study establishes the design strategies of elastomeric electrolytes for developing solid-state LMBs operating at low temperatures and high voltages.
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Affiliation(s)
- Jinseok Park
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
| | - Hyeonseok Seong
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
| | - Chanho Yuk
- Department of Polymer Science and Engineering, Department of Energy Engineering Convergence, Kumoh National Institute of Technology, Gumi, Gyeongbuk, 39177, Republic of Korea
| | - Dongkyu Lee
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
| | - Youyoung Byun
- School of Materials Science and Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju, 61005, Republic of Korea
| | - Eunji Lee
- School of Materials Science and Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju, 61005, Republic of Korea
| | - Wonho Lee
- Department of Polymer Science and Engineering, Department of Energy Engineering Convergence, Kumoh National Institute of Technology, Gumi, Gyeongbuk, 39177, Republic of Korea
| | - Bumjoon J Kim
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
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7
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Xia DL, Ding SP, Ye Z, Yang C, Xu JT. Poly(ethylene oxide)- and Polyzwitterion-Based Thermoplastic Elastomers for Solid Electrolytes. MATERIALS (BASEL, SWITZERLAND) 2024; 17:2145. [PMID: 38730953 PMCID: PMC11085580 DOI: 10.3390/ma17092145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2024] [Revised: 04/30/2024] [Accepted: 04/30/2024] [Indexed: 05/13/2024]
Abstract
In this article, ABA triblock copolymer (tri-BCP) thermoplastic elastomers with poly(ethylene oxide) (PEO) middle block and polyzwitterionic poly(4-vinylpyridine) propane-1-sulfonate (PVPS) outer blocks were synthesized. The PVPS-b-PEO-b-PVPS tri-BCPs were doped with lithium bis-(trifluoromethane-sulfonyl) imide (LiTFSI) and used as solid polyelectrolytes (SPEs). The thermal properties and microphase separation behavior of the tri-BCP/LiTFSI hybrids were studied. Small-angle X-ray scattering (SAXS) results revealed that all tri-BCPs formed asymmetric lamellar structures in the range of PVPS volume fractions from 12.9% to 26.1%. The microphase separation strength was enhanced with increasing the PVPS fraction (fPVPS) but was weakened as the doping ratio increased, which affected the thermal properties of the hybrids, such as melting temperature and glass transition temperature, to some extent. As compared with the PEO/LiTFSI hybrids, the PVPS-b-PEO-b-PVPS/LiTFSI hybrids could achieve both higher modulus and higher ionic conductivity, which were attributed to the physical crosslinking and the assistance in dissociation of Li+ ions by the PVPS blocks, respectively. On the basis of excellent electrical and mechanical performances, the PVPS-b-PEO-b-PVPS/LiTFSI hybrids can potentially be used as solid electrolytes in lithium-ion batteries.
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Affiliation(s)
| | | | | | | | - Jun-Ting Xu
- National Key Laboratory of Biobased Transportation Fuel Technology, International Research Center for X Polymers, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310058, China; (D.-L.X.); (S.-P.D.); (Z.Y.); (C.Y.)
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8
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Lei YJ, Zhao L, Lai WH, Huang Z, Sun B, Jaumaux P, Sun K, Wang YX, Wang G. Electrochemical coupling in subnanometer pores/channels for rechargeable batteries. Chem Soc Rev 2024; 53:3829-3895. [PMID: 38436202 DOI: 10.1039/d3cs01043k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/05/2024]
Abstract
Subnanometer pores/channels (SNPCs) play crucial roles in regulating electrochemical redox reactions for rechargeable batteries. The delicately designed and tailored porous structure of SNPCs not only provides ample space for ion storage but also facilitates efficient ion diffusion within the electrodes in batteries, which can greatly improve the electrochemical performance. However, due to current technological limitations, it is challenging to synthesize and control the quality, storage, and transport of nanopores at the subnanometer scale, as well as to understand the relationship between SNPCs and performances. In this review, we systematically classify and summarize materials with SNPCs from a structural perspective, dividing them into one-dimensional (1D) SNPCs, two-dimensional (2D) SNPCs, and three-dimensional (3D) SNPCs. We also unveil the unique physicochemical properties of SNPCs and analyse electrochemical couplings in SNPCs for rechargeable batteries, including cathodes, anodes, electrolytes, and functional materials. Finally, we discuss the challenges that SNPCs may face in electrochemical reactions in batteries and propose future research directions.
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Affiliation(s)
- Yao-Jie Lei
- Centre for Clean Energy Technology, School of Mathematical and Physical Sciences, Faculty of Science, University of Technology Sydney, Sydney, NSW 2007, Australia.
| | - Lingfei Zhao
- Institute for Superconducting & Electronic Materials, Australian Institute of Innovative Materials, University of Wollongong, Innovation Campus, Squires Way, North Wollongong, NSW 2500, Australia
| | - Wei-Hong Lai
- Institute for Superconducting & Electronic Materials, Australian Institute of Innovative Materials, University of Wollongong, Innovation Campus, Squires Way, North Wollongong, NSW 2500, Australia
| | - Zefu Huang
- Centre for Clean Energy Technology, School of Mathematical and Physical Sciences, Faculty of Science, University of Technology Sydney, Sydney, NSW 2007, Australia.
| | - Bing Sun
- Centre for Clean Energy Technology, School of Mathematical and Physical Sciences, Faculty of Science, University of Technology Sydney, Sydney, NSW 2007, Australia.
| | - Pauline Jaumaux
- Centre for Clean Energy Technology, School of Mathematical and Physical Sciences, Faculty of Science, University of Technology Sydney, Sydney, NSW 2007, Australia.
| | - Kening Sun
- School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 10081, P. R. China.
| | - Yun-Xiao Wang
- Institute of Energy Materials Science (IEMS), University of Shanghai for Science and Technology, 516 Jungong Road, Shanghai, 200093, P. R. China.
| | - Guoxiu Wang
- Centre for Clean Energy Technology, School of Mathematical and Physical Sciences, Faculty of Science, University of Technology Sydney, Sydney, NSW 2007, Australia.
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9
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Tsamopoulos A, Wang ZG. Ion Conductivity in Salt-Doped Polymers: Combined Effects of Temperature and Salt Concentration. ACS Macro Lett 2024; 13:322-327. [PMID: 38395049 PMCID: PMC10956493 DOI: 10.1021/acsmacrolett.3c00757] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 02/19/2024] [Accepted: 02/21/2024] [Indexed: 02/25/2024]
Abstract
We construct a coarse-grained molecular dynamics model based on poly(ethylene oxide) and lithium bis(trifluoromethane)sulfonimide salt to examine the combined effects of temperature and salt concentration on the transport properties. Salt doping notably slows the dynamics of polymer chains and reduces ion diffusivity, resulting in a glass transition temperature increase proportional to the salt concentration. The polymer diffusion is shown to be well represented by a modified Vogel-Fulcher-Tamman (M-VFT) equation that accounts for both the temperature and salt concentration dependence. Furthermore, we find that, at any temperature, the concentration dependence of the conductivity is well described by the product of its infinite dilution value and a correction factor accounting for the reduced segmental mobility with increasing salt concentration. These results highlight the important role of polymer segmental mobility in the salt concentration dependence of ion conductivity for temperatures near and above the glass transition.
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Affiliation(s)
- Alexandros
J. Tsamopoulos
- Division of Chemistry and Chemical
Engineering, California Institute of Technology, Pasadena, California 91125, United States
| | - Zhen-Gang Wang
- Division of Chemistry and Chemical
Engineering, California Institute of Technology, Pasadena, California 91125, United States
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10
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Tseng YH, Liao CW, Lin YL, Fan YC, Chang CW, Chang CT, Chen JT. Solvent-Tailored Reversible Self-Assembly: Unveiling Ionic Transport Nanochannels in Block Copolymer Composite Electrolytes. ACS APPLIED MATERIALS & INTERFACES 2024; 16:2716-2725. [PMID: 38085978 DOI: 10.1021/acsami.3c14669] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2024]
Abstract
Block copolymer composite electrolytes have gained extensive attention for their promising performance in ionic conductivity and mechanical properties, making them valuable for future technologies. The control of the ionic conductivity through the self-assembly of block copolymers, however, remains a great challenge, especially in confined environments. In this study, we prepare block copolymer composite electrolytes using polystyrene-block-poly(ethylene oxide) (PS-b-PEO, SEO) as the polymer matrix and anodic aluminum oxide (AAO) templates as the ceramic skeleton. The self-assembly of SEO creates nanoscale ion transport pathways in the PEO regions through ionic interactions with lithium salts. The nanopores of the AAO templates provide a confined environment for complex phase separation of SEO controlled by selective solvent vapor annealing. Our findings demonstrate that transforming self-assembled SEO structures allows for precise control of ion transport pathways with cylindrical structures exhibiting 20 times higher ionic conductivities than those of helical structures. For AAO templates with pore diameters of 20 nm (SEO-LiTFSI@AAO-20), the ionic conductivities are approximately 410 times higher than those with pore diameters of 200 nm (SEO-LiTFSI@AAO-200), owing to the larger specific surface areas within the smaller nanopores. Utilizing the self-assembly of SEO not only enables the construction of vertically aligned ion transport channels on various scales but also offers a fascinating approach to tailor the conductive capabilities of composite electrolytes, enhancing the ion transport efficiency and allowing for the flexible design of block copolymer composite electrolytes.
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Affiliation(s)
- Yu-Hsuan Tseng
- Department of Applied Chemistry, National Yang Ming Chiao Tung University, Hsinchu, Taiwan 300093
| | - Chih-Wei Liao
- Department of Applied Chemistry, National Yang Ming Chiao Tung University, Hsinchu, Taiwan 300093
| | - Yu-Liang Lin
- Department of Applied Chemistry, National Yang Ming Chiao Tung University, Hsinchu, Taiwan 300093
| | - Yi-Chun Fan
- Department of Applied Chemistry, National Yang Ming Chiao Tung University, Hsinchu, Taiwan 300093
| | - Chia-Wei Chang
- Department of Applied Chemistry, National Yang Ming Chiao Tung University, Hsinchu, Taiwan 300093
| | - Chun-Ting Chang
- Department of Applied Chemistry, National Yang Ming Chiao Tung University, Hsinchu, Taiwan 300093
| | - Jiun-Tai Chen
- Department of Applied Chemistry, National Yang Ming Chiao Tung University, Hsinchu, Taiwan 300093
- Center for Emergent Functional Matter Science, National Yang Ming Chiao Tung University, Hsinchu, Taiwan 300093
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11
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Wu X, Ji G, Wang J, Zhou G, Liang Z. Toward Sustainable All Solid-State Li-Metal Batteries: Perspectives on Battery Technology and Recycling Processes. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2301540. [PMID: 37191036 DOI: 10.1002/adma.202301540] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Revised: 05/04/2023] [Indexed: 05/17/2023]
Abstract
Lithium (Li)-based batteries are gradually evolving from the liquid to the solid state in terms of safety and energy density, where all solid-state Li-metal batteries (ASSLMBs) are considered the most promising candidates. This is demonstrated by the Bluecar electric vehicle produced by the Bolloré Group, which is utilized in car-sharing services in several cities worldwide. Despite impressive progress in the development of ASSLMBs, their avenues for recycling them remain underexplored, and combined with the current explosion of spent Li-ion batteries, they should attract widespread interest from academia and industry. Here, the potential challenges of recycling ASSLMBs as compared to Li-ion batteries are analyzed and the current progress and prospects for recycling ASSLMBs are summarized and analyzed. Drawing on the lessons learned from Li-ion battery recycling, it is important to design sustainable recycling technologies before ASSLMBs gain widespread market adoption. A battery-recycling-oriented design is also highlighted for ASSLMBs to promote the recycling rate and maximize profitability. Finally, future research directions, challenges, and prospects are outlined to provide strategies for achieving sustainable development of ASSLMBs.
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Affiliation(s)
- Xiaoxue Wu
- Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China
- Shenzhen Geim Graphene Center, Tsinghua-Berkeley Shenzhen Institute & Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, 518055, China
| | - Guanjun Ji
- Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China
- Shenzhen Geim Graphene Center, Tsinghua-Berkeley Shenzhen Institute & Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, 518055, China
| | - Junxiong Wang
- Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China
- Shenzhen Geim Graphene Center, Tsinghua-Berkeley Shenzhen Institute & Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, 518055, China
| | - Guangmin Zhou
- Shenzhen Geim Graphene Center, Tsinghua-Berkeley Shenzhen Institute & Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, 518055, China
| | - Zheng Liang
- Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China
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12
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Zhao W, Zheng Y, Jiang M, Sun T, Huang A, Wang L, Jiang W, Zhang Q. Exceptional n-type thermoelectric ionogels enabled by metal coordination and ion-selective association. SCIENCE ADVANCES 2023; 9:eadk2098. [PMID: 37878706 PMCID: PMC10599631 DOI: 10.1126/sciadv.adk2098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Accepted: 09/22/2023] [Indexed: 10/27/2023]
Abstract
Ionic liquid-based ionogels emerge as promising candidates for efficient ionic thermoelectric conversion due to their quasi-solid state, giant thermopower, high flexibility, and good stability. P-type ionogels have shown impressive performance; however, the development of n-type ionogels lags behind. Here, an n-type ionogel consisting of polyethylene oxide (PEO), lithium salt, and ionic liquid is developed. Strong coordination of lithium ion with ether oxygen and the anion-rich clusters generated by ion-preferential association promote rapid transport of the anions and boost Eastman entropy change, resulting in a huge negative ionic Seebeck coefficient (-15 millivolts per kelvin) and a high electrical conductivity (1.86 millisiemens per centimeter) at 50% relative humidity. Moreover, dynamic and reversible interactions among the ternary mixtures endow the ionogel with fast autonomous self-healing capability and green recyclability. All PEO-based ionic thermoelectric modules are fabricated, which exhibits outstanding thermal responses (-80 millivolts per kelvin for three p-n pairs), demonstrating great potential for low-grade energy harvesting and ultrasensitive thermal sensing.
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Affiliation(s)
- Wei Zhao
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
| | - Yiwei Zheng
- Soochow Institute for Energy and Materials Innovations, College of Energy, Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province, Soochow University, Suzhou 215006, China
| | - Meng Jiang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
| | - Tingting Sun
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
| | - Aibin Huang
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Lianjun Wang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
| | - Wan Jiang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
- Institute of Functional Materials, Donghua University, Shanghai 201620, China
| | - Qihao Zhang
- Institute for Metallic Materials, Leibniz Institute for Solid State and Materials Research, Dresden 01069, Germany
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13
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Mohapatra S, Halder S, Chaudhari SR, Netz RR, Mogurampelly S. Insights into the structure and Ion transport of pectin-[BMIM][PF6] electrolytes. J Chem Phys 2023; 159:154902. [PMID: 37843063 DOI: 10.1063/5.0158127] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Accepted: 09/29/2023] [Indexed: 10/17/2023] Open
Abstract
We investigate the effect of pectin on the structure and ion transport properties of the room-temperature ionic liquid electrolyte 1-n-butyl-3-methylimidazolium hexafluorophosphate ([BMIM][PF6]) using molecular dynamics simulations. We find that pectin induces intriguing structural changes in the electrolyte that disrupt large ionic aggregates and promote the formation of smaller ionic clusters, which is a promising finding for ionic conductivity. Due to pectin in [BMIM][PF6] electrolytes, the diffusion coefficient of cations and anions is observed to decrease by a factor of four for a loading of 25 wt. % of pectin in [BMIM][PF6] electrolyte. A strong correlation between the ionic diffusivities (D) and ion-pair relaxation timescales (τc) is observed such that D ∼ τc-0.75 for cations and D ∼ τc-0.82 for anions. The relaxation timescale exponents indicate that the ion transport mechanisms in pectin-[BMIM][PF6] electrolytes are slightly distinct from those found in neat [BMIM][PF6] electrolytes (D∼τc-1). Since pectin marginally affects ionic diffusivities at the gain of smaller ionic aggregates and viscosity, our results suggest that pectin-ionic liquid electrolytes offer improved properties for battery applications, including ionic conductivity, mechanical stability, and biodegradability.
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Affiliation(s)
- Sipra Mohapatra
- Polymer Electrolytes and Materials Group (PEMG), Department of Physics, Indian Institute of Technology Jodhpur, Karwar, Rajasthan 342037, India
| | - Sougata Halder
- Polymer Electrolytes and Materials Group (PEMG), Department of Physics, Indian Institute of Technology Jodhpur, Karwar, Rajasthan 342037, India
| | - Sachin R Chaudhari
- Department of Spice and Flavour Science, CSIR-Central Food Technological Research Institute, Mysore, Karnataka 570020, India
| | - Roland R Netz
- Fachbereich Physik, Freie Universität Berlin, 14195 Berlin, Germany
| | - Santosh Mogurampelly
- Polymer Electrolytes and Materials Group (PEMG), Department of Physics, Indian Institute of Technology Jodhpur, Karwar, Rajasthan 342037, India
- Fachbereich Physik, Freie Universität Berlin, 14195 Berlin, Germany
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14
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Yan S, Liu F, Ou Y, Zhou HY, Lu Y, Hou W, Cao Q, Liu H, Zhou P, Liu K. Asymmetric Trihalogenated Aromatic Lithium Salt Induced Lithium Halide Rich Interface for Stable Cycling of All-Solid-State Lithium Batteries. ACS NANO 2023; 17:19398-19409. [PMID: 37781911 DOI: 10.1021/acsnano.3c07246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/03/2023]
Abstract
Solid polymer electrolytes (SPEs) are the key components for all-solid-state lithium metal batteries with high energy density and intrinsic safety. However, the low lithium ion transference number (t+) of a conventional SPE and its unstable electrolyte/electrode interface cannot guarantee long-term stable operation. Herein, asymmetric trihalogenated aromatic lithium salts, i.e., lithium (3,4,5-trifluorobenzenesulfonyl)(trifluoromethanesulfonyl)imide (LiFFF) and lithium (4-bromo-3,5-difluorobenzenesulfonyl)(trifluoromethanesulfonyl)imide (LiFBF), are synthesized for polymer electrolytes. They exhibit higher t+ values and better compatibility with Li metal than conventional lithium bis(trifluoromethanesulfonyl) imide (LiTFSI). Due to the trihalogenated aromatic anions, LiFFF- and LiFBF-based electrolytes are prone to generate an LiF- and LiBr-rich solid electrolyte interphase (SEI), therefore increasing the stability of the solid electrolyte/anode interface. Particularly, LiFBF could induce a LiF/LiBr hybrid SEI, where LiF shows a high Young's modulus and high surface energy for homogenizing Li ion flux and LiBr exhibits an extremely low Li ion diffusion barrier in the SEI layer. As a result, the Li/Li symmetric cells could remain stable for more than 1200 h without a short circuit and the LiFePO4/Li batteries showed superb electrochemical performance over 1200 cycles at 1 C. This work provides valuable insights from the perspective of lithium salt molecular structures for high-performance all-solid-state lithium metal batteries.
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Affiliation(s)
- Shuaishuai Yan
- State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, People's Republic of China
| | - Fengxiang Liu
- State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, People's Republic of China
| | - Yu Ou
- State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, People's Republic of China
| | - Hang-Yu Zhou
- State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, People's Republic of China
- National Academy of Safety Science and Engineering, China Academy of Safety Science and Technology, Beijing 100012, People's Republic ofChina
| | - Yang Lu
- State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, People's Republic of China
| | - Wenhui Hou
- State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, People's Republic of China
| | - Qingbin Cao
- State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, People's Republic of China
| | - Hao Liu
- State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, People's Republic of China
| | - Pan Zhou
- State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, People's Republic of China
| | - Kai Liu
- State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, People's Republic of China
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15
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Platen K, Langer F, Bayer R, Hollmann R, Schwenzel J, Busse M. Influence of Molecular Weight and Lithium Bis(trifluoromethanesulfonyl)imide on the Thermal Processability of Poly(ethylene oxide) for Solid-State Electrolytes. Polymers (Basel) 2023; 15:3375. [PMID: 37631431 PMCID: PMC10459147 DOI: 10.3390/polym15163375] [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: 07/06/2023] [Revised: 07/24/2023] [Accepted: 08/03/2023] [Indexed: 08/27/2023] Open
Abstract
New energy systems such as all-solid-state battery (ASSB) technology are becoming increasingly important today. Recently, researchers have been investigating the transition from the lab-scale production of ASSB components to a larger scale. Poly(ethylene oxide) (PEO) is a promising candidate for the large-scale production of polymer-based solid electrolytes (SPEs) because it offers many processing options. Hence, in this work, the thermal processing route for a PEO-Lithium bis(trifluoromethylsulfonyl)imide (LiTFSI) SPE in the ratio of 20:1 (EO:Li) is investigated using kneading experiments. Here, we clearly show the sensitivity of PEO during thermal processing, especially for high-molecular-weight PEO (Mw = 600,000 g mol-1). LiTFSI acts as a plasticizer for low-molecular-weight PEO (Mw = 100,000 g mol-1), while it amplifies the degradation of high-molecular-weight PEO. Further, LiTFSI affects the thermal properties of PEO and its crystallinity. This leads to a higher chain mobility in the polymer matrix, which improves the flowability. In addition, the spherulite size of the produced PEO electrolytes differs from the molecular weight. This work demonstrates that low-molecular-weight PEO is more suitable for thermal processing as a solid electrolyte due to the process stability. High-molecular-weight PEO, especially, is strongly influenced by the process settings and LiTFSI.
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Affiliation(s)
- Katharina Platen
- Fraunhofer Institute for Manufacturing Technology and Advanced Materials (IFAM), Lilienthalplatz 1, 38108 Braunschweig, Germany
| | - Frederieke Langer
- Fraunhofer Institute for Manufacturing Technology and Advanced Materials (IFAM), Lilienthalplatz 1, 38108 Braunschweig, Germany
| | - Roland Bayer
- DDP Specialty Products Germany GmbH & Co. KG, Business Unit Pharma Solutions/Health, International Flavors & Fragrances Inc. (IFF), August-Wolff-Straße 13, 29699 Walsrode-Bomlitz, Germany
| | - Robert Hollmann
- DDP Specialty Products Germany GmbH & Co. KG, Business Unit Pharma Solutions/Health, International Flavors & Fragrances Inc. (IFF), August-Wolff-Straße 13, 29699 Walsrode-Bomlitz, Germany
| | - Julian Schwenzel
- Fraunhofer Institute for Manufacturing Technology and Advanced Materials (IFAM), Wiener Straße 12, 28359 Bremen, Germany
| | - Matthias Busse
- Fraunhofer Institute for Manufacturing Technology and Advanced Materials (IFAM), Wiener Straße 12, 28359 Bremen, Germany
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16
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Tekell MC, Nikolakakou G, Glynos E, Kumar SK. Ionic Conductivity and Mechanical Reinforcement of Well-Dispersed Polymer Nanocomposite Electrolytes. ACS APPLIED MATERIALS & INTERFACES 2023. [PMID: 37327494 DOI: 10.1021/acsami.3c04633] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Nanoparticles are commonly added to polymer electrolytes to enhance both their mechanical and ion transport properties. Previous work reports significant increases in the ionic conductivity and Li-ion transference in nanocomposite electrolytes with inert, ceramic fillers. The mechanistic understanding of this property enhancement, however, assumes nanoparticle dispersion states─namely, well-dispersed or percolating aggregates─that are seldom quantified using small-angle scattering. In this work, we carefully control the inter-silica nanoparticle structure (where each NP has a diameter D = 14 nm) in a model polymer electrolyte system (PEO:LiTFSI). We find that hydrophobically modified silica NPs are stabilized against aggregation in an organic solvent by inter-NP electrostatic repulsion. Favorable NP surface chemistry and a strongly negative zeta potential promote compatibility with PEO and the resulting electrolyte. Upon prolonged thermal annealing, the nanocomposite electrolytes display structure factors with characteristic interparticle spacings determined by particle volume fraction. Thermal annealing and particle structuring yield significant increases in the storage modulus, G', at 90 °C for the PEO/NP mixtures. We measure the dielectric spectra and blocking-electrode (κb) conductivities from -100 to 100 °C, and the Li+ current fraction (ρLi+) in symmetric Li-metal cells at 90 °C. We find that nanoparticles monotonically decrease the bulk ionic conductivity of PEO:LiTFSI at a rate faster than Maxwell's prediction for transport in composite media, while ρLi+ does not significantly change as a function of particle loading. Thus, when nanoparticle dispersion is controlled in polymer electrolytes, Li+ conductivity monotonically, i.e., (κbρLi+), decreases but favorable mechanical properties are realized. These results imply that percolating aggregates of ceramic surfaces, as opposed to physically separated particles, probably are required to achieve increases in bulk, ionic conductivity.
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Affiliation(s)
- Marshall C Tekell
- Department of Chemical Engineering, Columbia University, New York, New York 10027, United States
| | - Georgia Nikolakakou
- Institute of Electronic Structure and Laser, Foundation for Research and Technology-Hellas, 711 10 Heraklion, Crete, Greece
- Department of Chemistry, University of Crete, 710 03 Heraklion, Crete, Greece
| | - Emmanouil Glynos
- Institute of Electronic Structure and Laser, Foundation for Research and Technology-Hellas, 711 10 Heraklion, Crete, Greece
- Department of Materials Science and Technology, University of Crete, 71003 Heraklion, Greece
| | - Sanat K Kumar
- Department of Chemical Engineering, Columbia University, New York, New York 10027, United States
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17
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Bakar R, Darvishi S, Aydemir U, Yahsi U, Tav C, Menceloglu YZ, Senses E. Decoding Polymer Architecture Effect on Ion Clustering, Chain Dynamics, and Ionic Conductivity in Polymer Electrolytes. ACS APPLIED ENERGY MATERIALS 2023; 6:4053-4064. [PMID: 37064412 PMCID: PMC10091352 DOI: 10.1021/acsaem.3c00310] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/04/2023] [Accepted: 03/13/2023] [Indexed: 06/19/2023]
Abstract
Poly(ethylene oxide) (PEO)-based polymer electrolytes are a promising class of materials for use in lithium-ion batteries due to their high ionic conductivity and flexibility. In this study, the effects of polymer architecture including linear, star, and hyperbranched and salt (lithiumbis(trifluoromethanesulfonyl)imide (LiTFSI)) concentration on the glass transition (T g), microstructure, phase diagram, free volume, and bulk viscosity, all of which play a significant role in determining the ionic conductivity of the electrolyte, have been systematically studied for PEO-based polymer electrolytes. The branching of PEO widens the liquid phase toward lower salt concentrations, suggesting decreased crystallization and improved ion coordination. At high salt loadings, ion clustering is common for all electrolytes, yet the cluster size and distribution appear to be strongly architecture-dependent. Also, the ionic conductivity is maximized at a salt concentration of [Li/EO ≈ 0.085] for all architectures, and the highly branched polymers displayed as much as three times higher ionic conductivity (with respect to the linear analogue) for the same total molar mass. The architecture-dependent ionic conductivity is attributed to the enhanced free volume measured by positron annihilation lifetime spectroscopy. Interestingly, despite the strong architecture dependence of ionic conductivity, the salt addition in the highly branched architectures results in accelerated yet similar monomeric friction coefficients for these polymers, offering significant potential toward decoupling of conductivity from segmental dynamics of polymer electrolytes, leading to outstanding battery performance.
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Affiliation(s)
- Recep Bakar
- Department
of Material Science and Engineering, Koç
University, Sariyer, Istanbul 34450, Türkiye
| | - Saeid Darvishi
- Department
of Chemical and Biological Engineering, Koç University, Sariyer, Istanbul 34450, Türkiye
| | - Umut Aydemir
- Department
of Chemistry, Koç University, Sariyer, Istanbul 34450, Türkiye
- Koc
University Boron and Advanced Materials Application and Research Center
(KUBAM), Sariyer, Istanbul 34450, Türkiye
| | - Ugur Yahsi
- Department
of Physics, Faculty of Science, Marmara
University, Kadikoy, Istanbul 34722, Türkiye
| | - Cumali Tav
- Department
of Physics, Faculty of Science, Marmara
University, Kadikoy, Istanbul 34722, Türkiye
| | - Yusuf Ziya Menceloglu
- Faculty of
Engineering and Natural Sciences, Sabanci
University, Tuzla, Istanbul 34956, Türkiye
| | - Erkan Senses
- Department
of Chemical and Biological Engineering, Koç University, Sariyer, Istanbul 34450, Türkiye
- Koc
University Boron and Advanced Materials Application and Research Center
(KUBAM), Sariyer, Istanbul 34450, Türkiye
- Koç
University Surface Science and Technology Center (KUYTAM), Rumelifeneri yolu, Sariyer, Istanbul 34450, Türkiye
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18
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Su Y, Xu F, Zhang X, Qiu Y, Wang H. Rational Design of High-Performance PEO/Ceramic Composite Solid Electrolytes for Lithium Metal Batteries. NANO-MICRO LETTERS 2023; 15:82. [PMID: 37002362 PMCID: PMC10066058 DOI: 10.1007/s40820-023-01055-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/25/2022] [Accepted: 02/28/2023] [Indexed: 06/19/2023]
Abstract
Composite solid electrolytes (CSEs) with poly(ethylene oxide) (PEO) have become fairly prevalent for fabricating high-performance solid-state lithium metal batteries due to their high Li+ solvating capability, flexible processability and low cost. However, unsatisfactory room-temperature ionic conductivity, weak interfacial compatibility and uncontrollable Li dendrite growth seriously hinder their progress. Enormous efforts have been devoted to combining PEO with ceramics either as fillers or major matrix with the rational design of two-phase architecture, spatial distribution and content, which is anticipated to hold the key to increasing ionic conductivity and resolving interfacial compatibility within CSEs and between CSEs/electrodes. Unfortunately, a comprehensive review exclusively discussing the design, preparation and application of PEO/ceramic-based CSEs is largely lacking, in spite of tremendous reviews dealing with a broad spectrum of polymers and ceramics. Consequently, this review targets recent advances in PEO/ceramic-based CSEs, starting with a brief introduction, followed by their ionic conduction mechanism, preparation methods, and then an emphasis on resolving ionic conductivity and interfacial compatibility. Afterward, their applications in solid-state lithium metal batteries with transition metal oxides and sulfur cathodes are summarized. Finally, a summary and outlook on existing challenges and future research directions are proposed.
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Affiliation(s)
- Yanxia Su
- State Key Laboratory of Solidification Processing, Centre for Nano Energy Materials, School of Materials Science and Engineering, Northwestern Polytechnical University, Shaanxi Joint Laboratory of Graphene (NPU), Xi'an, 710072, People's Republic of China
| | - Fei Xu
- State Key Laboratory of Solidification Processing, Centre for Nano Energy Materials, School of Materials Science and Engineering, Northwestern Polytechnical University, Shaanxi Joint Laboratory of Graphene (NPU), Xi'an, 710072, People's Republic of China.
| | - Xinren Zhang
- State Key Laboratory of Solidification Processing, Centre for Nano Energy Materials, School of Materials Science and Engineering, Northwestern Polytechnical University, Shaanxi Joint Laboratory of Graphene (NPU), Xi'an, 710072, People's Republic of China
| | - Yuqian Qiu
- State Key Laboratory of Solidification Processing, Centre for Nano Energy Materials, School of Materials Science and Engineering, Northwestern Polytechnical University, Shaanxi Joint Laboratory of Graphene (NPU), Xi'an, 710072, People's Republic of China
| | - Hongqiang Wang
- State Key Laboratory of Solidification Processing, Centre for Nano Energy Materials, School of Materials Science and Engineering, Northwestern Polytechnical University, Shaanxi Joint Laboratory of Graphene (NPU), Xi'an, 710072, People's Republic of China.
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19
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Shigenobu K, Philippi F, Tsuzuki S, Kokubo H, Dokko K, Watanabe M, Ueno K. On the concentration polarisation in molten Li salts and borate-based Li ionic liquids. Phys Chem Chem Phys 2023; 25:6970-6978. [PMID: 36804678 DOI: 10.1039/d2cp05710g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Electrolytes that transport only Li ions play a crucial role in improving rapid charge and discharge properties in Li secondary batteries. Single Li-ion conduction can be achieved via liquid materials such as Li ionic liquids containing Li+ as the only cations because solvent-free fused Li salts do not polarise in electrochemical cells, owing to the absence of neutral solvents that allow polarisation in the salt concentration and the inevitably homogeneous density in the cells under anion-blocking conditions. However, we found that borate-based Li ionic liquids induce concentration polarisation in a Li/Li symmetric cell, which results in their transference (transport) numbers under anion-blocking conditions (tabcLi) being well below unity. The electrochemical polarisation of the borate-based Li ionic liquids was attributed to an equilibrium shift caused by exchangeable B-O coordination bonds in the anions to generate Li salts and borate-ester solvents at the electrode/electrolyte interface. By comparing borate-based Li ionic liquids containing different ligands, the B-O bond strength and extent of ligand exchange were found to be directly linked to the tabcLi values. This study confirms that the presence of dynamic exchangeable bonds causes electrochemical polarisation and provides a reference for the rational molecular design of Li ionic liquids aimed at achieving single-ion conducting liquid electrolytes.
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Affiliation(s)
- Keisuke Shigenobu
- Department of Chemistry and Life Science, Yokohama National University, 79-5 Tokiwadai, Hodogaya-ku, Yokohama 240-8501, Japan.
| | - Frederik Philippi
- Department of Chemistry and Life Science, Yokohama National University, 79-5 Tokiwadai, Hodogaya-ku, Yokohama 240-8501, Japan.
| | - Seiji Tsuzuki
- Institute of Advanced Sciences, Yokohama National University, 79-5 Tokiwadai, Hodogaya-ku, Yokohama 240-8501, Japan
| | - Hisashi Kokubo
- Department of Chemistry and Life Science, Yokohama National University, 79-5 Tokiwadai, Hodogaya-ku, Yokohama 240-8501, Japan.
| | - Kaoru Dokko
- Department of Chemistry and Life Science, Yokohama National University, 79-5 Tokiwadai, Hodogaya-ku, Yokohama 240-8501, Japan. .,Institute of Advanced Sciences, Yokohama National University, 79-5 Tokiwadai, Hodogaya-ku, Yokohama 240-8501, Japan
| | - Masayoshi Watanabe
- Institute of Advanced Sciences, Yokohama National University, 79-5 Tokiwadai, Hodogaya-ku, Yokohama 240-8501, Japan
| | - Kazuhide Ueno
- Department of Chemistry and Life Science, Yokohama National University, 79-5 Tokiwadai, Hodogaya-ku, Yokohama 240-8501, Japan. .,Institute of Advanced Sciences, Yokohama National University, 79-5 Tokiwadai, Hodogaya-ku, Yokohama 240-8501, Japan
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20
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Dookhith AZ, Lynd NA, Sanoja GE. Tailoring Rate and Temperature-Dependent Fracture of Polyether Networks with Organoaluminum Catalysts. Macromolecules 2022. [DOI: 10.1021/acs.macromol.2c01955] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Aaliyah Z. Dookhith
- McKetta Department of Chemical Engineering, The University of Texas at Austin, Austin, Texas78712, United States
| | - Nathaniel A. Lynd
- McKetta Department of Chemical Engineering, The University of Texas at Austin, Austin, Texas78712, United States
| | - Gabriel E. Sanoja
- McKetta Department of Chemical Engineering, The University of Texas at Austin, Austin, Texas78712, United States
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21
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New Crosslinked Single-Ion Silica-PEO Hybrid Electrolytes. Polymers (Basel) 2022; 14:polym14235328. [PMID: 36501722 PMCID: PMC9735500 DOI: 10.3390/polym14235328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Revised: 11/16/2022] [Accepted: 11/22/2022] [Indexed: 12/12/2022] Open
Abstract
New single-ion hybrid electrolytes have been synthetized via an original and simple synthetic approach combining Michael addition, epoxidation, and sol-gel polycondensation. We designed an organic PEO network as a matrix for the lithium transport, mechanically reinforced thanks to crosslinking inorganic (SiO1.5) sites, while highly delocalized anions based on lithium vinyl sulfonyl(trifluoromethane sulfonyl)imide (VSTFSILi) were grafted onto the inorganic sites to produce single-ion hybrid electrolytes (HySI). The influence of the electrolyte composition in terms of the inorganic/organic ratio and the grafted VSTFSILi content on the local structural organization, the thermal, mechanical, and ionic transport properties (ionic conductivity, transference number) are studied by a variety of techniques including SAXS, DSC, rheometry, and electrochemical impedance spectroscopy. SAXS measurements at 25 °C and 60 °C reveal that HySI electrolyte films display locally a spatial phase separation with domains composed of PEO rich phase and silica/VSTFSILi clusters. The size of these clusters increases with the silica and VSTFSILi content. A maximum ionic conductivity of 2.1 × 10-5 S·cm-1 at 80 °C has been obtained with HySI having an EO/Li ratio of 20. The Li+ ion transfer number of HySI electrolytes is high, as expected for a single-ion electrolyte, and comprises between 0.80 and 0.92.
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22
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Zhang ZK, Ding SP, Ye Z, Xia DL, Xu JT. PEO-Based Block Copolymer Electrolytes Containing Double Conductive Phases with Improved Mechanical and Electrochemical Properties. MATERIALS (BASEL, SWITZERLAND) 2022; 15:7930. [PMID: 36431415 PMCID: PMC9699265 DOI: 10.3390/ma15227930] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/16/2022] [Revised: 11/05/2022] [Accepted: 11/07/2022] [Indexed: 06/16/2023]
Abstract
In this work, the advanced all solid-state block copolymer electrolytes (SBCPEs) for lithium-ion batteries with double conductive phases, poly(ethylene oxide)-b-poly(trimethyl-N-((2-(dimethylamino)ethyl methacrylate)-7-propyl)-ammonium bis(trifluoromethanesulfonyl) imide) (PEO-b-PDM-dTFSI)/LiTFSI, were fabricated, in which the charged PDM-dTFSI block contained double quaternary ammonium cations and the PEO block was doped with LiTFSI. The disordered (DIS) and ordered lamellae (LAM) phase structures were achieved by adjusting the composition of the block copolymer and the doping ratio r. In addition, the presence of the hard PDM-dTFSI block and the formation of the LAM phase structure resulted in a good mechanical strength of the solid PEO-b-PDM-dTFSI/LiTFSI electrolyte, and it could maintain a high level of 104 Pa at 100 °C, which was around 10,000 times stronger than that of the PEO/LiTFSI electrolyte. Based on the good mechanical and electrochemical properties, the PEO-b-PDM-dTFSI/LiTFSI SBCPE exhibited excellent long-term galvanostatic cycle performance, indicating the strong ability to suppress lithium dendrites.
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23
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Sundararaman S, Halat DM, Reimer JA, Balsara NP, Prendergast D. Understanding the Impact of Multi-Chain Ion Coordination in Poly(ether-Acetal) Electrolytes. Macromolecules 2022. [DOI: 10.1021/acs.macromol.2c01897] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Siddharth Sundararaman
- Joint Center for Energy Storage Research, the Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, California94720, United States
| | - David M. Halat
- Joint Center for Energy Storage Research, Department of Chemical and Biomolecular Engineering and College of Chemistry, University of California, Berkeley, California94720, United States
- Joint Center for Energy Storage Research, Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California94720, United States
| | - Jeffrey A. Reimer
- Joint Center for Energy Storage Research, Department of Chemical and Biomolecular Engineering and College of Chemistry, University of California, Berkeley, California94720, United States
- Joint Center for Energy Storage Research, Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California94720, United States
| | - Nitash P. Balsara
- Joint Center for Energy Storage Research, Department of Chemical and Biomolecular Engineering and College of Chemistry, University of California, Berkeley, California94720, United States
- Joint Center for Energy Storage Research, Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California94720, United States
| | - David Prendergast
- Joint Center for Energy Storage Research, the Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, California94720, United States
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24
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Grundy LS, Fu S, Hoffman ZJ, Balsara NP. Electrochemical Characterization of PEO/LiTFSI Electrolytes Near the Solubility Limit. Macromolecules 2022. [DOI: 10.1021/acs.macromol.2c01655] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Lorena S. Grundy
- Department of Chemical and Biomolecular Engineering, University of California, Berkeley, California94720, United States
- Joint Center for Energy Storage Research (JCESR), Lawrence Berkeley National Laboratory, Berkeley, California94720, United States
| | - Sean Fu
- Department of Chemical and Biomolecular Engineering, University of California, Berkeley, California94720, United States
| | - Zach J. Hoffman
- Department of Chemical and Biomolecular Engineering, University of California, Berkeley, California94720, United States
- Joint Center for Energy Storage Research (JCESR), Lawrence Berkeley National Laboratory, Berkeley, California94720, United States
- Materials Science Division, Lawrence Berkeley National Laboratory, Berkeley, California94720, United States
| | - Nitash P. Balsara
- Department of Chemical and Biomolecular Engineering, University of California, Berkeley, California94720, United States
- Joint Center for Energy Storage Research (JCESR), Lawrence Berkeley National Laboratory, Berkeley, California94720, United States
- Materials Science Division, Lawrence Berkeley National Laboratory, Berkeley, California94720, United States
- Energy Storage and Distributed Resources Division, Lawrence Berkeley National Laboratory, Berkeley, California94720, United States
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25
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Sharon D, Deng C, Bennington P, Webb MA, Patel SN, de Pablo JJ, Nealey PF. Critical Percolation Threshold for Solvation-Site Connectivity in Polymer Electrolyte Mixtures. Macromolecules 2022. [DOI: 10.1021/acs.macromol.2c00988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Daniel Sharon
- Institute of Chemistry, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
| | - Chuting Deng
- Pritzker School of Molecular Engineering, University of Chicago, 5640 S Ellis Ave, Chicago, Illinois 60637, United States
| | - Peter Bennington
- Pritzker School of Molecular Engineering, University of Chicago, 5640 S Ellis Ave, Chicago, Illinois 60637, United States
| | - Michael A. Webb
- Department of Chemical and Biological Engineering, Princeton University, 41 Olden Street, Princeton, New Jersey 08540, United States
| | - Shrayesh N. Patel
- Pritzker School of Molecular Engineering, University of Chicago, 5640 S Ellis Ave, Chicago, Illinois 60637, United States
| | - Juan J. de Pablo
- Pritzker School of Molecular Engineering, University of Chicago, 5640 S Ellis Ave, Chicago, Illinois 60637, United States
- Materials Science Division, Argonne National Laboratory, 9700 South Cass Avenue, Lemont, Illinois 60439, United States
| | - Paul F. Nealey
- Pritzker School of Molecular Engineering, University of Chicago, 5640 S Ellis Ave, Chicago, Illinois 60637, United States
- Materials Science Division, Argonne National Laboratory, 9700 South Cass Avenue, Lemont, Illinois 60439, United States
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26
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Nikolakakou G, Pantazidis C, Sakellariou G, Glynos E. Ion Conductivity–Shear Modulus Relationship of Single-Ion Solid Polymer Electrolytes Composed of Polyanionic Miktoarm Star Copolymers. Macromolecules 2022. [DOI: 10.1021/acs.macromol.2c00620] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Georgia Nikolakakou
- Institute of Electronic Structure and Laser, Foundation for Research and Technology-Hellas, P.O. Box 1385, 711 10 Heraklion, Crete, Greece
- Department of Chemistry, University of Crete, P.O. Box 2208, 710 03 Heraklion, Crete, Greece
| | - Christos Pantazidis
- Department of Chemistry, National and Kapodistrian University of Athens, Panepistimiopolis Zografrou, 15 771 Athens, Greece
| | - Georgios Sakellariou
- Department of Chemistry, National and Kapodistrian University of Athens, Panepistimiopolis Zografrou, 15 771 Athens, Greece
| | - Emmanouil Glynos
- Institute of Electronic Structure and Laser, Foundation for Research and Technology-Hellas, P.O. Box 1385, 711 10 Heraklion, Crete, Greece
- Department of Materials Science and Technology, University of Crete, Heraklion 71003, Greece
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27
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Xie S, Nikolaev A, Nordness OA, C. Llanes L, Jones SD, Richardson PM, Wang H, Clément RJ, Read de Alaniz J, Segalman RA. Polymer Electrolyte Based on Cyano-Functionalized Polysiloxane with Enhanced Salt Dissolution and High Ionic Conductivity. Macromolecules 2022. [DOI: 10.1021/acs.macromol.2c00329] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Shuyi Xie
- Materials Research Laboratory, University of California, Santa Barbara, California 93106, United States
- Mitsubishi Chemical Center for Advanced Materials, University of California, Santa Barbara, California 93106, United States
| | - Andrei Nikolaev
- Mitsubishi Chemical Center for Advanced Materials, University of California, Santa Barbara, California 93106, United States
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, United States
| | - Oscar A. Nordness
- Materials Research Laboratory, University of California, Santa Barbara, California 93106, United States
- Mitsubishi Chemical Center for Advanced Materials, University of California, Santa Barbara, California 93106, United States
| | - Luana C. Llanes
- Mitsubishi Chemical Center for Advanced Materials, University of California, Santa Barbara, California 93106, United States
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, United States
| | - Seamus D. Jones
- Mitsubishi Chemical Center for Advanced Materials, University of California, Santa Barbara, California 93106, United States
- Department of Chemical Engineering, University of California, Santa Barbara, California 93106, United States
| | - Peter M. Richardson
- Materials Research Laboratory, University of California, Santa Barbara, California 93106, United States
- Mitsubishi Chemical Center for Advanced Materials, University of California, Santa Barbara, California 93106, United States
| | - Hengbin Wang
- Mitsubishi Chemical Center for Advanced Materials, University of California, Santa Barbara, California 93106, United States
| | - Raphaële J. Clément
- Materials Research Laboratory, University of California, Santa Barbara, California 93106, United States
- Mitsubishi Chemical Center for Advanced Materials, University of California, Santa Barbara, California 93106, United States
- Materials Department, University of California, Santa Barbara, California 93106, United States
| | - Javier Read de Alaniz
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, United States
| | - Rachel A. Segalman
- Materials Research Laboratory, University of California, Santa Barbara, California 93106, United States
- Mitsubishi Chemical Center for Advanced Materials, University of California, Santa Barbara, California 93106, United States
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, United States
- Department of Chemical Engineering, University of California, Santa Barbara, California 93106, United States
- Materials Department, University of California, Santa Barbara, California 93106, United States
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28
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Bai S, Zhang X, Chen Z, Lin J, Wang Q, Zhang Y. Design of Polymer‐in‐Salt Electrolyte for Solid State Lithium Battery with Wide Working Temperature Range. ChemistrySelect 2022. [DOI: 10.1002/slct.202201571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Shuai Bai
- College of Chemistry and Materials Science Fujian Normal University Fuzhou 350007 P. R. China
- Key Laboratory of Optoelectronic Materials Chemistry and Physics Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences 155 Yangqiao Road West Fuzhou Fujian 350002 P. R. China
| | - Xiangxin Zhang
- Key Laboratory of Optoelectronic Materials Chemistry and Physics Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences 155 Yangqiao Road West Fuzhou Fujian 350002 P. R. China
| | - Zhou Chen
- Key Laboratory of Optoelectronic Materials Chemistry and Physics Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences 155 Yangqiao Road West Fuzhou Fujian 350002 P. R. China
| | - Junhong Lin
- Key Laboratory of Optoelectronic Materials Chemistry and Physics Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences 155 Yangqiao Road West Fuzhou Fujian 350002 P. R. China
| | - Qiming Wang
- Key Laboratory of Optoelectronic Materials Chemistry and Physics Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences 155 Yangqiao Road West Fuzhou Fujian 350002 P. R. China
| | - Yining Zhang
- Key Laboratory of Optoelectronic Materials Chemistry and Physics Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences 155 Yangqiao Road West Fuzhou Fujian 350002 P. R. China
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29
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Grim BJ, Green MD. Thermodynamics and Structure‐Property Relationships of Charged Block Polymers. MACROMOL CHEM PHYS 2022. [DOI: 10.1002/macp.202200036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Bradley J. Grim
- Chemical Engineering School for Engineering of Matter Transport and Energy Arizona State University Tempe AZ 85287
| | - Matthew D. Green
- Chemical Engineering School for Engineering of Matter Transport and Energy Arizona State University Tempe AZ 85287
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30
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Shalini S, Matzger AJ. Ethylene oxide functionalization enhances the ionic conductivity of a MOF. Chem Commun (Camb) 2022; 58:5355-5358. [PMID: 35363242 DOI: 10.1039/d2cc01286c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Varying the degree of ethylene oxide (EO) functionalization of the zirconium MOF UiO-68 affords two novel MOFs; UiO-68-EO and UiO-68-2EO exhibit solvent-free ionic conductivity upon loading LiTFSI in their pores. Incorporating EO chains provides a pathway for lithium ion migration between the coordinated sites and results in an ionic conductivity of 3.8 × 10-7 S cm-1 and 3.9 × 10-4 S cm-1 at 90 °C for UiO-68-EO/LiTFSI and UiO-68-2EO/LiTFSI respectively.
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Affiliation(s)
- Sorout Shalini
- Department of Chemistry, University of Michigan, 930 North University Avenue, Ann Arbor, MI 48109, USA.
| | - Adam J Matzger
- Department of Chemistry, University of Michigan, 930 North University Avenue, Ann Arbor, MI 48109, USA. .,Department of Macromolecular Science and Engineering, University of Michigan, Ann Arbor, MI 48019, USA
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31
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Liu C, Tang X, Wang Y, Sacci RL, Bras W, Keum JK, Chen XC. Ionic Conductivity Enhancement of Polymer Electrolytes by Directed Crystallization. ACS Macro Lett 2022; 11:595-602. [PMID: 35575342 DOI: 10.1021/acsmacrolett.2c00040] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We report that hot stretching of poly(ethylene oxide) (PEO)-based solid polymer electrolytes (SPEs) can lead to a preferred orientation of PEO crystalline lamellae, thereby reducing the tortuosity of the ion-conduction pathway along the thickness direction of the SPE film, causing improved ionic conductivity. The hot stretching method is implemented by stretching SPE films above the melting point of PEO in an inert environment followed by crystallization at room temperature while maintaining the applied strain. The effect of hot stretching on the crystalline orientation, crystallinity, morphology, and ion transport in PEO with two types of salts, lithium bis(trifluoromethanesulfonyl)imide (LiTFSI) and lithium triflate (LiCF3SO3), is investigated in detail. Wide-angle X-ray scattering (WAXS) and small-angle X-ray scattering (SAXS) show that the orientation of PEO crystalline lamellae induces the formation of a short ion-conduction pathway along the through-plane direction of the SPE films, leading to 1.4- to 3.5-fold enhancement in the through-plane ionic conductivity.
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Affiliation(s)
- Changhao Liu
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, United States
| | - Xiaomin Tang
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, United States
| | - Yangyang Wang
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, United States
| | - Robert L. Sacci
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, United States
| | - Wim Bras
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, United States
| | - Jong K. Keum
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, United States
- Neutron Scattering Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, United States
| | - X. Chelsea Chen
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, United States
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32
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Davenport MN, Bentley CL, Brennecke JF, Freeman BD. Ethylene and ethane transport properties of hydrogen-stable Ag+-based facilitated transport membranes. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2022.120300] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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33
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In situ infrared nanospectroscopy of the local processes at the Li/polymer electrolyte interface. Nat Commun 2022; 13:1398. [PMID: 35301308 PMCID: PMC8931078 DOI: 10.1038/s41467-022-29103-z] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Accepted: 02/23/2022] [Indexed: 12/03/2022] Open
Abstract
Solid-state batteries possess the potential to significantly impact energy storage industries by enabling diverse benefits, such as increased safety and energy density. However, challenges persist with physicochemical properties and processes at electrode/electrolyte interfaces. Thus, there is great need to characterize such interfaces in situ, and unveil scientific understanding that catalyzes engineering solutions. To address this, we conduct multiscale in situ microscopies (optical, atomic force, and infrared near-field) and Fourier transform infrared spectroscopies (near-field nanospectroscopy and attenuated total reflection) of intact and electrochemically operational graphene/solid polymer electrolyte interfaces. We find nanoscale structural and chemical heterogeneities intrinsic to the solid polymer electrolyte initiate a cascade of additional interfacial nanoscale heterogeneities during Li plating and stripping; including Li-ion conductivity, electrolyte decomposition, and interphase formation. Moreover, our methodology to nondestructively characterize buried interfaces and interphases in their native environment with nanoscale resolution is readily adaptable to a number of other electrochemical systems and battery chemistries. Solid-state batteries remain promising but essential insights into electrode-electrolyte interface are required. Here, the authors report in situ infrared nanospectroscopy of the lithium-polymer-electrolyte interface to reveal its intrinsic molecular, structural, and chemical heterogeneities.
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34
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Daniel M, Duggan SG, Seol K, McManus GJ, Dhumal NR. Ionic Association in CH 3-(CH 2-CF 2) n -CH 3(PVDF)-Li +-(CF 3SO 2) 2N - for n = 1, 4: A Computational Approach. ACS OMEGA 2022; 7:7116-7124. [PMID: 35252702 PMCID: PMC8892668 DOI: 10.1021/acsomega.1c06797] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Accepted: 02/03/2022] [Indexed: 06/14/2023]
Abstract
The ionic conductivity of solid polymer electrolytes is governed by the ionic association caused by the polymer···Li+ and the anion···Li+ interactions. We performed the density functional calculation to analyze the molecular interactions in the CH3-(CH2-CF2) n -CH3-Li+-(CF3SO2)2N- for n = 1,4 systems. The gauche conformation is predicted in the lowest energy conformer of pure polymer except for n = 1. The lithium coordination number with the polymer is changed from 3 to 2 in the presence of anion for n = 2, 4 systems. The consequences of the Li+ ion and Li+-(CF3SO2)2N- to the vibrational spectrum are studied to understand the ionic association at the molecular level.
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35
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Jones S, Nguyen H, Richardson PM, Chen YQ, Wyckoff KE, Hawker CJ, Clément R, Fredrickson GH, Segalman RA. Design of Polymeric Zwitterionic Solid Electrolytes with Superionic Lithium Transport. ACS CENTRAL SCIENCE 2022; 8:169-175. [PMID: 35233449 PMCID: PMC8874728 DOI: 10.1021/acscentsci.1c01260] [Citation(s) in RCA: 30] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Indexed: 05/05/2023]
Abstract
Progress toward durable and energy-dense lithium-ion batteries has been hindered by instabilities at electrolyte-electrode interfaces, leading to poor cycling stability, and by safety concerns associated with energy-dense lithium metal anodes. Solid polymeric electrolytes (SPEs) can help mitigate these issues; however, the SPE conductivity is limited by sluggish polymer segmental dynamics. We overcome this limitation via zwitterionic SPEs that self-assemble into superionically conductive domains, permitting decoupling of ion motion and polymer segmental rearrangement. Although crystalline domains are conventionally detrimental to ion conduction in SPEs, we demonstrate that semicrystalline polymer electrolytes with labile ion-ion interactions and tailored ion sizes exhibit excellent lithium conductivity (1.6 mS/cm) and selectivity (t + ≈ 0.6-0.8). This new design paradigm for SPEs allows for simultaneous optimization of previously orthogonal properties, including conductivity, Li selectivity, mechanics, and processability.
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Affiliation(s)
- Seamus
D. Jones
- Department
of Chemical Engineering, University of California
Santa Barbara, Santa Barbara, California 93110-5080, United States
- Materials
Research Laboratory, University of California
Santa Barbara, Santa Barbara, California 93110-5080, United States
- Mitsubishi
Chemical Center for Advanced Materials, University of California Santa Barbara, Santa Barbara, California 93110-5080, United States
| | - Howie Nguyen
- Materials
Department, University of California Santa
Barbara, Santa
Barbara, California 93110-5080, United States
| | - Peter M. Richardson
- Materials
Research Laboratory, University of California
Santa Barbara, Santa Barbara, California 93110-5080, United States
- Mitsubishi
Chemical Center for Advanced Materials, University of California Santa Barbara, Santa Barbara, California 93110-5080, United States
| | - Yan-Qiao Chen
- Materials
Research Laboratory, University of California
Santa Barbara, Santa Barbara, California 93110-5080, United States
- Department
of Chemistry and Biochemistry, University
of California Santa Barbara, Santa
Barbara, California 93110-5080, United States
| | - Kira E. Wyckoff
- Materials
Research Laboratory, University of California
Santa Barbara, Santa Barbara, California 93110-5080, United States
- Materials
Department, University of California Santa
Barbara, Santa
Barbara, California 93110-5080, United States
| | - Craig J. Hawker
- Materials
Research Laboratory, University of California
Santa Barbara, Santa Barbara, California 93110-5080, United States
- Materials
Department, University of California Santa
Barbara, Santa
Barbara, California 93110-5080, United States
- Department
of Chemistry and Biochemistry, University
of California Santa Barbara, Santa
Barbara, California 93110-5080, United States
| | - Raphaële
J. Clément
- Materials
Research Laboratory, University of California
Santa Barbara, Santa Barbara, California 93110-5080, United States
- Mitsubishi
Chemical Center for Advanced Materials, University of California Santa Barbara, Santa Barbara, California 93110-5080, United States
- Materials
Department, University of California Santa
Barbara, Santa
Barbara, California 93110-5080, United States
| | - Glenn H. Fredrickson
- Department
of Chemical Engineering, University of California
Santa Barbara, Santa Barbara, California 93110-5080, United States
- Materials
Research Laboratory, University of California
Santa Barbara, Santa Barbara, California 93110-5080, United States
- Mitsubishi
Chemical Center for Advanced Materials, University of California Santa Barbara, Santa Barbara, California 93110-5080, United States
- Materials
Department, University of California Santa
Barbara, Santa
Barbara, California 93110-5080, United States
| | - Rachel A. Segalman
- Department
of Chemical Engineering, University of California
Santa Barbara, Santa Barbara, California 93110-5080, United States
- Materials
Research Laboratory, University of California
Santa Barbara, Santa Barbara, California 93110-5080, United States
- Mitsubishi
Chemical Center for Advanced Materials, University of California Santa Barbara, Santa Barbara, California 93110-5080, United States
- Materials
Department, University of California Santa
Barbara, Santa
Barbara, California 93110-5080, United States
- Email for R.A.S.:
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36
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Tu CH, Veith L, Butt HJ, Floudas G. Ionic Conductivity of a Solid Polymer Electrolyte Confined in Nanopores. Macromolecules 2022. [DOI: 10.1021/acs.macromol.1c02490] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Chien-Hua Tu
- Max Planck Institute for Polymer Research, 55128 Mainz, Germany
| | - Lothar Veith
- Max Planck Institute for Polymer Research, 55128 Mainz, Germany
| | | | - George Floudas
- Max Planck Institute for Polymer Research, 55128 Mainz, Germany
- Department of Physics, University of Ioannina, 45110 Ioannina, Greece
- University Research Center of Ioannina (URCI)─Institute of Materials Science and Computing, 45110 Ioannina, Greece
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37
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Loaiza LC, Johansson P. Li‐salt Doped Single‐ion Conducting Polymer Electrolytes for Lithium Battery Application. MACROMOL CHEM PHYS 2022. [DOI: 10.1002/macp.202100419] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Laura C. Loaiza
- Department of Physics Chalmers University of Technology Göteborg SE‐41296 SWEDEN
| | - Patrik Johansson
- Department of Physics Chalmers University of Technology Göteborg SE‐41296 SWEDEN
- ALISTORE‐European Research Institute FR CNRS 3104, Hub de I'Energie, 15 Rue Baudelocque Amiens 80039 FRANCE
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38
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Pantazidis C, Andreou S, Nikolakakou G, Glynos E, SAKELLARIOU GEORGIOS. Synthesis and Molecular Characterization of Well-defined Polyanion Miktoarm Star Copolymers. Polym Chem 2022. [DOI: 10.1039/d2py00195k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Over the last year, the synthesis of polyanion copolymers has attracted considerable attention for their utilization in single-ion electrolytes in lithium battery applications. Morphology has a significant impact on the...
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39
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Bósquez-Cáceres MF, Hidalgo-Bonilla S, Morera Córdova V, Michell RM, Tafur JP. Nanocomposite Polymer Electrolytes for Zinc and Magnesium Batteries: From Synthetic to Biopolymers. Polymers (Basel) 2021; 13:4284. [PMID: 34960837 PMCID: PMC8706018 DOI: 10.3390/polym13244284] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2021] [Revised: 11/25/2021] [Accepted: 11/28/2021] [Indexed: 12/27/2022] Open
Abstract
The diversification of current forms of energy storage and the reduction of fossil fuel consumption are issues of high importance for reducing environmental pollution. Zinc and magnesium are multivalent ions suitable for the development of environmentally friendly rechargeable batteries. Nanocomposite polymer electrolytes (NCPEs) are currently being researched as part of electrochemical devices because of the advantages of dispersed fillers. This article aims to review and compile the trends of different types of the latest NCPEs. It briefly summarizes the desirable properties the electrolytes should possess to be considered for later uses. The first section is devoted to NCPEs composed of poly(vinylidene Fluoride-co-Hexafluoropropylene). The second section centers its attention on discussing the electrolytes composed of poly(ethylene oxide). The third section reviews the studies of NCPEs based on different synthetic polymers. The fourth section discusses the results of electrolytes based on biopolymers. The addition of nanofillers improves both the mechanical performance and the ionic conductivity; key points to be explored in the production of batteries. These results set an essential path for upcoming studies in the field. These attempts need to be further developed to get practical applications for industry in large-scale polymer-based electrolyte batteries.
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Affiliation(s)
| | | | | | | | - Juan P. Tafur
- School of Chemical Sciences & Engineering, Yachay Tech University, Urcuquí 100119, Ecuador; (M.F.B.-C.); (S.H.-B.); (V.M.C.); (R.M.M.)
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40
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Affiliation(s)
- Michael Patrick Blatt
- Florida A&M University-Florida State University (FAMU-FSU) College of Engineering, Tallahassee, Florida 32310, United States
| | - Daniel T. Hallinan
- Florida A&M University-Florida State University (FAMU-FSU) College of Engineering, Tallahassee, Florida 32310, United States
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41
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Affiliation(s)
- Jelena Popovic
- Max Planck Institute for Solid State Research Heisenbergstr. 1 Stuttgart 70569 Germany
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42
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Kim K, Nguyen N, Marxsen SF, Smith S, Alamo RG, Kennemur JG, Hallinan DT. Ionic Transport and Thermodynamic Interaction in Precision Polymer Blend Electrolytes for Lithium Batteries. MACROMOL CHEM PHYS 2021. [DOI: 10.1002/macp.202100269] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Kyoungmin Kim
- Department of Chemical and Biomedical Engineering Florida A&M University–Florida State University (FAMU‐FSU) College of Engineering 2525 Pottsdamer Street Tallahassee FL 32310 USA
- Aero‐propulsion, Mechatronics and Energy (AME) Center FAMU‐FSU College of Engineering 2003 Levy Avenue Tallahassee FL 32310 USA
| | - Nam Nguyen
- Department of Chemistry and Biochemistry Florida State University 95 Chieftan Way Tallahassee FL 32306 USA
| | - Stephanie F. Marxsen
- Department of Chemical and Biomedical Engineering Florida A&M University–Florida State University (FAMU‐FSU) College of Engineering 2525 Pottsdamer Street Tallahassee FL 32310 USA
| | - Sage Smith
- Department of Chemical and Biomedical Engineering Florida A&M University–Florida State University (FAMU‐FSU) College of Engineering 2525 Pottsdamer Street Tallahassee FL 32310 USA
- Aero‐propulsion, Mechatronics and Energy (AME) Center FAMU‐FSU College of Engineering 2003 Levy Avenue Tallahassee FL 32310 USA
| | - Rufina G. Alamo
- Department of Chemical and Biomedical Engineering Florida A&M University–Florida State University (FAMU‐FSU) College of Engineering 2525 Pottsdamer Street Tallahassee FL 32310 USA
| | - Justin G. Kennemur
- Department of Chemistry and Biochemistry Florida State University 95 Chieftan Way Tallahassee FL 32306 USA
| | - Daniel T. Hallinan
- Department of Chemical and Biomedical Engineering Florida A&M University–Florida State University (FAMU‐FSU) College of Engineering 2525 Pottsdamer Street Tallahassee FL 32310 USA
- Aero‐propulsion, Mechatronics and Energy (AME) Center FAMU‐FSU College of Engineering 2003 Levy Avenue Tallahassee FL 32310 USA
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43
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Schkeryantz L, Nguyen P, McCulloch WD, Moore CE, Lau KC, Wu Y. Unusual Melting Trend in an Alkali Asymmetric Sulfonamide Salt Series: Single-Crystal Analysis and Modeling. Inorg Chem 2021; 60:14679-14686. [PMID: 34555283 DOI: 10.1021/acs.inorgchem.1c01752] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Developing low-melting alkali salts is of interest for both battery electrolytes and inorganic ionic liquids. In this study, we report a series of asymmetric alkali-metal sulfonamide salts based upon the (3-methoxypropyl)((trifluoromethyl)sulfonyl)amide (MPSA) anion. This family of salts features an unusual melting point trend, where the melting point of the salts decreases as the cation increases in size from Li to K but then the melting point increases as the cation further increases in size from K to Cs. Analyses of single crystals reveal that the unusual higher melting points of RbMPSA and CsMPSA in comparison to KMPSA can be attributed to the greater cation-cation distances as well as the increased rigidity of anion-cation coordination due to an increase in cyclic structures in comparison to KMPSA. Exceptionally, KMPSA features a very low melting point of only 50.79 ± 0.31 °C. This low melting point can be attributed to a relatively high degree of disorder, an unusual uncoordinated ether moiety, and a very short K-K distance of only 3.4348(7) Å among other factors, which is supported by the low cohesive energy and small elastic moduli among the rest according to density functional theory (DFT) calculations. The low melting point of KMPSA makes it interesting for low-temperature ionic liquids.
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Affiliation(s)
- Luke Schkeryantz
- Department of Chemistry and Biochemistry, The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210, United States
| | - Phu Nguyen
- Department of Physics and Astronomy, California State University, Northridge, California 91330, United States
| | - William D McCulloch
- Department of Chemistry and Biochemistry, The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210, United States
| | - Curtis E Moore
- Department of Chemistry and Biochemistry, The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210, United States
| | - Kah Chun Lau
- Department of Physics and Astronomy, California State University, Northridge, California 91330, United States
| | - Yiying Wu
- Department of Chemistry and Biochemistry, The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210, United States
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44
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Establishing a unified framework for ion solvation and transport in liquid and solid electrolytes. TRENDS IN CHEMISTRY 2021. [DOI: 10.1016/j.trechm.2021.06.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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45
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Xu H, Mahanthappa MK. Ionic Conductivities of Broad Dispersity Lithium Salt-Doped Polystyrene/Poly(ethylene oxide) Triblock Polymers. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c01100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Hongyun Xu
- Department of Chemical Engineering & Materials Science, University of Minnesota, 421 Washington Avenue Southeast, Minneapolis, Minnesota 55455, United States
| | - Mahesh K. Mahanthappa
- Department of Chemical Engineering & Materials Science, University of Minnesota, 421 Washington Avenue Southeast, Minneapolis, Minnesota 55455, United States
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46
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Butzelaar AJ, Röring P, Mach TP, Hoffmann M, Jeschull F, Wilhelm M, Winter M, Brunklaus G, Théato P. Styrene-Based Poly(ethylene oxide) Side-Chain Block Copolymers as Solid Polymer Electrolytes for High-Voltage Lithium-Metal Batteries. ACS APPLIED MATERIALS & INTERFACES 2021; 13:39257-39270. [PMID: 34374509 DOI: 10.1021/acsami.1c08841] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Herein, we report the design of styrene-based poly(ethylene oxide) (PEO) side-chain block copolymers featuring a microphase separation and their application as solid polymer electrolytes in high-voltage lithium-metal batteries. A straightforward synthesis was established, overcoming typical drawbacks of PEO block copolymers prepared by anionic polymerization or ester-based PEO side-chain copolymers. Both the PEO side-chain length and the LiTFSI content were varied, and the underlying relationships were elucidated in view of polymer compositions with high ionic conductivity. Subsequently, a selected composition was subjected to further analyses, including phase-separated morphology, providing not only excellent self-standing films with intrinsic mechanical stability but also the ability to suppress lithium dendrite growth as well as good flexibility, wettability, and good contacts with the electrodes. Furthermore, good thermal and electrochemical stability was demonstrated. To do so, linear sweep and cyclic voltammetry, lithium plating/stripping tests, and galvanostatic overcharging using high-voltage cathodes were conducted, demonstrating stable lithium-metal interfaces and a high oxidative stability of around 4.75 V. Consequently, cycling of Li||NMC622 cells did not exhibit commonly observed rapid cell failure or voltage noise associated with PEO-based electrolytes in Li||NMC622 cells, attributed to the high mechanical stability. A comprehensive view is provided, highlighting that the combination of PEO and high-voltage cathodes is not impossible per se.
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Affiliation(s)
- Andreas J Butzelaar
- Karlsruhe Institute of Technology (KIT), Institute for Chemical Technology and Polymer Chemistry (ITCP), Engesserstraße 18, 76131 Karlsruhe, Germany
| | - Philipp Röring
- Helmholtz-Institute Münster, IEK-12, Forschungszentrum Jülich GmbH, Corrensstraße 46, 48149 Münster, Germany
| | - Tim P Mach
- Karlsruhe Institute of Technology (KIT), Institute for Chemical Technology and Polymer Chemistry (ITCP), Engesserstraße 18, 76131 Karlsruhe, Germany
| | - Maxi Hoffmann
- Karlsruhe Institute of Technology (KIT), Institute for Chemical Technology and Polymer Chemistry (ITCP), Engesserstraße 18, 76131 Karlsruhe, Germany
| | - Fabian Jeschull
- Karlsruhe Institute of Technology (KIT), Institute for Applied Materials-Energy Storage Systems (IAM-ESS), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Manfred Wilhelm
- Karlsruhe Institute of Technology (KIT), Institute for Chemical Technology and Polymer Chemistry (ITCP), Engesserstraße 18, 76131 Karlsruhe, Germany
| | - Martin Winter
- Helmholtz-Institute Münster, IEK-12, Forschungszentrum Jülich GmbH, Corrensstraße 46, 48149 Münster, Germany
- MEET Battery Research Center/Institute of Physical Chemistry, University of Münster, Corrensstraße 46, 48149 Münster, Germany
| | - Gunther Brunklaus
- Helmholtz-Institute Münster, IEK-12, Forschungszentrum Jülich GmbH, Corrensstraße 46, 48149 Münster, Germany
- MEET Battery Research Center/Institute of Physical Chemistry, University of Münster, Corrensstraße 46, 48149 Münster, Germany
| | - Patrick Théato
- Karlsruhe Institute of Technology (KIT), Institute for Chemical Technology and Polymer Chemistry (ITCP), Engesserstraße 18, 76131 Karlsruhe, Germany
- Karlsruhe Institute of Technology (KIT), Soft Matter Laboratory-Institute for Biological Interfaces III (IBG-3), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
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47
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Zainal NFA, Ramli H, Fritz M, Abetz V, Chan CH. Influence of thermal treatment on the properties and intermolecular interactions of epoxidized natural rubber-salt systems. PURE APPL CHEM 2021. [DOI: 10.1515/pac-2020-0904] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
The influence of thermal treatment on the thermal stability, thermal properties, dielectric properties and intermolecular interaction of binary epoxidized natural rubber (ENR)-salt systems, which may be a candidate for solid polymer electrolytes (SPEs) was investigated. Solubility of salt in ENR enhances, which may be due to the disruption of the lightly-crosslinked microgel under heat treatment. The increase in the ionic conductivities of the thermally treated ENR SPEs at constant salt content is correlated to the higher glass transition temperatures, development of percolation network and higher extent of intermolecular interactions between ENR and charged entities in this study.
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Affiliation(s)
- Nurul Fatahah Asyqin Zainal
- Centre of Foundation Studies, Universiti Teknologi MARA , Cawangan Selangor , Kampus Dengkil , 43800 Dengkil , Selangor , Malaysia
| | - Hairunnisa Ramli
- Centre of Foundation Studies, Universiti Teknologi MARA , Cawangan Selangor , Kampus Dengkil , 43800 Dengkil , Selangor , Malaysia
| | - Margarethe Fritz
- Institute of Physical Chemistry , Universität Hamburg , Martin-Luther-King-Platz 6 , 20146 Hamburg , Germany
| | - Volker Abetz
- Institute of Physical Chemistry , Universität Hamburg , Martin-Luther-King-Platz 6 , 20146 Hamburg , Germany
- Helmholtz-Zentrum Hereon, Institute of Membrane Research , Max-Planck-Strasse 1 , 21502 Geesthacht , Germany
| | - Chin Han Chan
- Faculty of Applied Sciences , Universiti Teknologi MARA , 40450 Shah Alam , Selangor , Malaysia
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48
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Wu H, Gao P, Jia H, Zou L, Zhang L, Cao X, Engelhard MH, Bowden ME, Ding MS, Hu J, Hu D, Burton SD, Xu K, Wang C, Zhang JG, Xu W. A Polymer-in-Salt Electrolyte with Enhanced Oxidative Stability for Lithium Metal Polymer Batteries. ACS APPLIED MATERIALS & INTERFACES 2021; 13:31583-31593. [PMID: 34170663 DOI: 10.1021/acsami.1c04637] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The lithium (Li) metal polymer battery (LMPB) is a promising candidate for solid-state batteries with high safety. However, high voltage stability of such a battery has been hindered by the use of polyethylene oxide (PEO), which oxidizes at a potential lower than 4 V versus Li. Herein, we adopt the polymer-in-salt electrolyte (PISE) strategy to circumvent the disadvantage of the PEO-lithium bis(fluorosulfonyl)imide (LiFSI) system with EO/Li ≤ 8 through a dry ball-milling process to avoid the contamination of the residual solvent. The obtained solid-state PISEs exhibit distinctly different morphologies and coordination structures which lead to significant improvement in oxidative stability. P(EO)1LiFSI has a low melting temperature, a high ionic conductivity at 60 °C, and an oxidative stability of ∼4.5 V versus Li/Li+. With an effective interphase rich in inorganic species and a good stability of the hybrid polymer electrolyte toward Li metal, the LMPB constructed with Li||LiNi1/3Co1/3Mn1/3O2 can retain 74.4% of capacity after 186 cycles at 60 °C under the cutoff charge voltage of 4.3 V. The findings offer a promising pathway toward high-voltage stable polymer electrolytes for high-energy-density and safe LMPBs.
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Affiliation(s)
- Haiping Wu
- Energy and Environment Directorate, Pacific Northwest National Laboratory, Richland, Washington 99354, United States
| | - Peiyuan Gao
- Physical and Computational Sciences Directorate, Pacific Northwest National Laboratory, Richland, Washington 99354, United States
| | - Hao Jia
- Energy and Environment Directorate, Pacific Northwest National Laboratory, Richland, Washington 99354, United States
| | - Lianfeng Zou
- Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, Washington 99354, United States
| | - Linchao Zhang
- Energy and Environment Directorate, Pacific Northwest National Laboratory, Richland, Washington 99354, United States
| | - Xia Cao
- Energy and Environment Directorate, Pacific Northwest National Laboratory, Richland, Washington 99354, United States
| | - Mark H Engelhard
- Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, Washington 99354, United States
| | - Mark E Bowden
- Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, Washington 99354, United States
| | - Michael S Ding
- Battery Science Branch, U.S. Army Research Laboratory, Adelphi, Maryland 20783, United States
| | - Jiangtao Hu
- Energy and Environment Directorate, Pacific Northwest National Laboratory, Richland, Washington 99354, United States
| | - Dehong Hu
- Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, Washington 99354, United States
| | - Sarah D Burton
- Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, Washington 99354, United States
| | - Kang Xu
- Battery Science Branch, U.S. Army Research Laboratory, Adelphi, Maryland 20783, United States
| | - Chongmin Wang
- Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, Washington 99354, United States
| | - Ji-Guang Zhang
- Energy and Environment Directorate, Pacific Northwest National Laboratory, Richland, Washington 99354, United States
| | - Wu Xu
- Energy and Environment Directorate, Pacific Northwest National Laboratory, Richland, Washington 99354, United States
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49
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Loo WS, Fang C, Balsara NP, Wang R. Uncovering Local Correlations in Polymer Electrolytes by X-ray Scattering and Molecular Dynamics Simulations. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c00995] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Whitney S. Loo
- Department of Chemical and Biomolecular Engineering, University of California Berkeley, Berkeley, California 94720, United States
| | - Chao Fang
- Department of Chemical and Biomolecular Engineering, University of California Berkeley, Berkeley, California 94720, United States
| | - Nitash P. Balsara
- Department of Chemical and Biomolecular Engineering, University of California Berkeley, Berkeley, California 94720, United States
| | - Rui Wang
- Department of Chemical and Biomolecular Engineering, University of California Berkeley, Berkeley, California 94720, United States
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50
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Polyether Single and Double Crystalline Blends and the Effect of Lithium Salt on Their Crystallinity and Ionic Conductivity. Polymers (Basel) 2021; 13:polym13132097. [PMID: 34202328 PMCID: PMC8271483 DOI: 10.3390/polym13132097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 06/18/2021] [Accepted: 06/22/2021] [Indexed: 11/16/2022] Open
Abstract
In this work, blends of Poly(ethylene oxide), PEO, and poly(1,6-hexanediol), PHD, were prepared in a wide composition range. They were examined by Differential Scanning Calorimetry (DSC), Polarized Light Optical Microscopy (PLOM) and Wide Angle X-ray Scattering (WAXS). Based on the results obtained, the blends were partially miscible in the melt and their crystallization was a function of miscibility and composition. Crystallization triggered phase separation. In blends with higher PEO contents both phases were able to crystallize due to the limited miscibility in this composition range. On the other hand, the blends with higher PHD contents display higher miscibility and therefore, only the PHD phase could crystallize in them. A nucleation effect of the PHD phase on the PEO phase was detected, probably caused by a transference of impurities mechanism. Since PEO is widely used as electrolyte in lithium batteries, the PEO/PHD blends were studied with lithium bis(trifluoromethanesulfonyl) imide (LiTFSI), and the effect of Li-salt concentration was studied. We found that the lithium salt preferentially dissolves in the PEO phase without significantly affecting the PHD component. While the Li-salt reduced the spherulite growth rate of the PEO phase within the blends, the overall crystallization rate was enhanced because of the strong nucleating effect of the PHD component. The ionic conductivity was also determined for the blends with Li-salt. At high temperatures (>70 °C), the conductivity is in the order of ~10−3 S cm−1, and as the temperature decreases, the crystallization of PHD was detected. This improved the self-standing character of the blend films at high temperatures as compared to the one of neat PEO.
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