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Title: Li 2 S 6 ‐Integrated PEO‐Based Polymer Electrolytes for All‐Solid‐State Lithium‐Metal Batteries

Abstract

Abstract The integration of Li 2 S 6 within a poly(ethylene oxide) (PEO)‐based polymer electrolyte is demonstrated to improve the polymer electrolyte's ionic conductivity because the strong interplay between O 2− (PEO) and Li + from Li 2 S 6 reduces the crystalline volume within the PEO. The Li/electrolyte interface is stabilized by the in situ formation of an ultra‐thin Li 2 S/Li 2 S 2 layer via the reaction between Li 2 S 6 and lithium metal, which increases the ionic transport at the interface and suppresses lithium dendrite growth. A symmetric Li/Li cell with the Li 2 S 6 ‐integrated composite electrolyte has excellent cyclability and a high critical current density of 0.9 mA cm −2 at 40 °C. Impressive electrochemical performance is demonstrated with all‐solid‐state Li/LiFePO 4 and high‐voltage Li/LiNi 0.8 Mn 0.1 Co 0.1 O 2 cells at 40 °C.

Authors:
ORCiD logo [1];  [1];  [1];  [2];  [1];  [2];  [1];  [1]; ORCiD logo [1]
+ Show Author Affiliations
  1. Materials Science and Engineering Program and Texas Materials Institute The University of Texas at Austin Austin TX 78712 USA
  2. College of Materials Science and Engineering Zhejiang University of Technology Hangzhou 310014 China
Publication Date:
Sponsoring Org.:
USDOE
OSTI Identifier:
1997297
Grant/Contract Number:  
SC0005397; EE0007762
Resource Type:
Publisher's Accepted Manuscript
Journal Name:
Angewandte Chemie (International Edition)
Additional Journal Information:
Journal Name: Angewandte Chemie (International Edition) Journal Volume: 60 Journal Issue: 32; Journal ID: ISSN 1433-7851
Publisher:
Wiley Blackwell (John Wiley & Sons)
Country of Publication:
Germany
Language:
English

Citation Formats

Fang, Ruyi, Xu, Biyi, Grundish, Nicholas S., Xia, Yang, Li, Yutao, Lu, Chengwei, Liu, Yijie, Wu, Nan, and Goodenough, John B. Li 2 S 6 ‐Integrated PEO‐Based Polymer Electrolytes for All‐Solid‐State Lithium‐Metal Batteries. Germany: N. p., 2021. Web. doi:10.1002/anie.202106039.
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Fang, Ruyi, Xu, Biyi, Grundish, Nicholas S., Xia, Yang, Li, Yutao, Lu, Chengwei, Liu, Yijie, Wu, Nan, & Goodenough, John B. Li 2 S 6 ‐Integrated PEO‐Based Polymer Electrolytes for All‐Solid‐State Lithium‐Metal Batteries. Germany. https://doi.org/10.1002/anie.202106039
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Fang, Ruyi, Xu, Biyi, Grundish, Nicholas S., Xia, Yang, Li, Yutao, Lu, Chengwei, Liu, Yijie, Wu, Nan, and Goodenough, John B. Wed . "Li 2 S 6 ‐Integrated PEO‐Based Polymer Electrolytes for All‐Solid‐State Lithium‐Metal Batteries". Germany. https://doi.org/10.1002/anie.202106039.
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@article{osti_1997297,
title = {Li 2 S 6 ‐Integrated PEO‐Based Polymer Electrolytes for All‐Solid‐State Lithium‐Metal Batteries},
author = {Fang, Ruyi and Xu, Biyi and Grundish, Nicholas S. and Xia, Yang and Li, Yutao and Lu, Chengwei and Liu, Yijie and Wu, Nan and Goodenough, John B.},
abstractNote = {Abstract The integration of Li 2 S 6 within a poly(ethylene oxide) (PEO)‐based polymer electrolyte is demonstrated to improve the polymer electrolyte's ionic conductivity because the strong interplay between O 2− (PEO) and Li + from Li 2 S 6 reduces the crystalline volume within the PEO. The Li/electrolyte interface is stabilized by the in situ formation of an ultra‐thin Li 2 S/Li 2 S 2 layer via the reaction between Li 2 S 6 and lithium metal, which increases the ionic transport at the interface and suppresses lithium dendrite growth. A symmetric Li/Li cell with the Li 2 S 6 ‐integrated composite electrolyte has excellent cyclability and a high critical current density of 0.9 mA cm −2 at 40 °C. Impressive electrochemical performance is demonstrated with all‐solid‐state Li/LiFePO 4 and high‐voltage Li/LiNi 0.8 Mn 0.1 Co 0.1 O 2 cells at 40 °C.},
doi = {10.1002/anie.202106039},
journal = {Angewandte Chemie (International Edition)},
number = 32,
volume = 60,
place = {Germany},
year = {Wed Jun 30 00:00:00 EDT 2021},
month = {Wed Jun 30 00:00:00 EDT 2021}
}
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Journal Article:
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Accepted Manuscript (Publisher)
Publisher's Version of Record
https://doi.org/10.1002/anie.202106039
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