Author
Listed:
- Weiran Zhang
(University of Maryland)
- Volodymyr Koverga
(Materials Science Division, Argonne National Laboratory
University of Illinois Chicago)
- Sufu Liu
(University of Maryland)
- Jigang Zhou
(Canadian Light Source Inc., University of Saskatchewan)
- Jian Wang
(Canadian Light Source Inc., University of Saskatchewan)
- Panxing Bai
(University of Maryland)
- Sha Tan
(Chemistry Division, Brookhaven National Laboratory)
- Naveen K. Dandu
(Materials Science Division, Argonne National Laboratory
University of Illinois Chicago)
- Zeyi Wang
(University of Maryland)
- Fu Chen
(University of Maryland)
- Jiale Xia
(University of Maryland)
- Hongli Wan
(University of Maryland)
- Xiyue Zhang
(University of Maryland)
- Haochen Yang
(University of Maryland)
- Brett L. Lucht
(University of Rhode Island)
- Ai-Min Li
(University of Maryland)
- Xiao-Qing Yang
(Chemistry Division, Brookhaven National Laboratory)
- Enyuan Hu
(Chemistry Division, Brookhaven National Laboratory)
- Srinivasa R. Raghavan
(University of Maryland)
- Anh T. Ngo
(Materials Science Division, Argonne National Laboratory
University of Illinois Chicago)
- Chunsheng Wang
(University of Maryland
University of Maryland)
Abstract
Solid polymers are promising electrolytes for Li-metal batteries, but they have limitations: they cannot simultaneously achieve high ionic conductivity, good mechanical strength and compatibility with high-voltage cathodes while suppressing Li dendrites. Here, we design a class of locally high-concentration solid polymer electrolytes based on polymer blends, which are termed Li-polymer in F diluter (LPIFD). The Li-polymer (polymer-in-salt) ensures continuous Li-ion conduction channels and contributes to the solid electrolyte interphase (SEI), and the F diluter (inert fluorinated polymer) adds mechanical strength. Studies reveal that a single-phase LPIFD, which is based on a miscible polymer blend, lacks phase boundaries and forms an organic-less and LiF-rich SEI, effectively suppressing lithium dendrites. The single-phase LPIFD delivers ionic conductivity of 3.0 × 10−4 S cm−1, and enables the Li anode to reach a high coulombic efficiency of 99.1% and a critical current density of 3.7 mA cm−2. Furthermore, the ability to form an F-rich cathode electrolyte interphase allows LiNi0.8Co0.1Mn0.1O2||Li cells to achieve a cycle life of 450 cycles at a high operating voltage of 4.5 V. This design will inspire efforts to commercialize polymer electrolytes for high-energy Li-metal batteries.
Suggested Citation
Weiran Zhang & Volodymyr Koverga & Sufu Liu & Jigang Zhou & Jian Wang & Panxing Bai & Sha Tan & Naveen K. Dandu & Zeyi Wang & Fu Chen & Jiale Xia & Hongli Wan & Xiyue Zhang & Haochen Yang & Brett L. L, 2024.
"Single-phase local-high-concentration solid polymer electrolytes for lithium-metal batteries,"
Nature Energy, Nature, vol. 9(4), pages 386-400, April.
Handle:
RePEc:nat:natene:v:9:y:2024:i:4:d:10.1038_s41560-023-01443-0
DOI: 10.1038/s41560-023-01443-0
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Cited by:
- Hanwen An & Menglu Li & Qingsong Liu & Yajie Song & Jiaxuan Liu & Zhihang Yu & Xingjiang Liu & Biao Deng & Jiajun Wang, 2024.
"Strong Lewis-acid coordinated PEO electrolyte achieves 4.8 V-class all-solid-state batteries over 580 Wh kg−1,"
Nature Communications, Nature, vol. 15(1), pages 1-12, December.
- Zhoujie Lao & Kehao Tao & Xiao Xiao & Haotian Qu & Xinru Wu & Zhiyuan Han & Runhua Gao & Jian Wang & Xian Wu & An Chen & Lei Shi & Chengshuai Chang & Yanze Song & Xiangyu Wang & Jinjin Li & Yanfei Zhu, 2025.
"Data-driven exploration of weak coordination microenvironment in solid-state electrolyte for safe and energy-dense batteries,"
Nature Communications, Nature, vol. 16(1), pages 1-13, December.
- Tianyi Hou & Donghai Wang & Bowen Jiang & Yi Liu & Jia Kong & Yanbing He & Yunhui Huang & Henghui Xu, 2025.
"Ion bridging enables high-voltage polyether electrolytes for quasi-solid-state batteries,"
Nature Communications, Nature, vol. 16(1), pages 1-12, December.
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