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Title: Atomically Intimate Contact between Solid Electrolytes and Electrodes for Li Batteries

Abstract

Replacing liquid electrolytes with solid ones in Li-ion batteries can greatly alleviate the notorious safety issues and potentially break the “glass ceiling” for energy density. Nevertheless, the non-infiltrative nature of solid electrolytes makes it difficult to realize an intimate electrode-electrolyte contact similar to that between solid and liquid. Here, a non-conventional approach was proposed to overcome this challenge. We discovered that the Li-rich layered electrodes and perovskite electrolytes may form epitaxial interfaces, enabling an atomically intimate solid-solid contact. With such “epitaxial” composite electrodes successfully prepared, the seamless solid-solid electrode-electrolyte contact led to a rate capability comparable with that of the solid-liquid composite electrode. The epitaxy approach raised here could inspire an efficient protocol for addressing the electrode-electrolyte contact issue for solid-state batteries.

Authors:
 [1];  [2];  [1];  [2];  [2];  [3];  [3];  [4];  [3];  [2]
  1. Hefei National Lab. for Physical Sciences at the Microscale, Hefei (China). Division of Nanomaterials & Chemistry; Univ. of Science and Technology of China, Hefei (China). Dept. of Materials Science and Engineering; Chinese Academy of Sciences (CAS), Beijing (China). Key Lab. of Materials for Energy Conversion
  2. Tsinghua Univ., Beijing (China). School of Materials Science and Engineering, State Key Lab. of New Ceramics and Fine Processing
  3. Ames Lab., Ames, IA (United States)
  4. Hefei National Lab. for Physical Sciences at the Microscale, Hefei (China). Division of Nanomaterials & Chemistry; Univ. of Science and Technology of China, Hefei (China). Dept. of Materials Science and Engineering; Chinese Academy of Sciences (CAS), Beijing (China). Key Lab. of Materials for Energy Conversion; Ames Lab., Ames, IA (United States)
Publication Date:
Research Org.:
Ames Laboratory (AMES), Ames, IA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1569737
Report Number(s):
IS-J-0037
Journal ID: ISSN 2590-2385
Grant/Contract Number:  
2017YFA0208300; 2018YFA0209600; 51802302; 51788104; WK2060190085; WK2340000076
Resource Type:
Accepted Manuscript
Journal Name:
Matter
Additional Journal Information:
Journal Volume: 1; Journal Issue: 4; Journal ID: ISSN 2590-2385
Country of Publication:
United States
Language:
English

Citation Formats

Li, Fuzhen, Li, Jingxuan, Zhu, Feng, Liu, Ting, Xu, Ben, Kim, Tae-Hoon, Kramer, Matthew J., Ma, Cheng, Zhou, Lin, and Nan, Ce-Wen. Atomically Intimate Contact between Solid Electrolytes and Electrodes for Li Batteries. United States: N. p., 2019. Web. doi:10.1016/j.matt.2019.05.004.
Li, Fuzhen, Li, Jingxuan, Zhu, Feng, Liu, Ting, Xu, Ben, Kim, Tae-Hoon, Kramer, Matthew J., Ma, Cheng, Zhou, Lin, & Nan, Ce-Wen. Atomically Intimate Contact between Solid Electrolytes and Electrodes for Li Batteries. United States. doi:10.1016/j.matt.2019.05.004.
Li, Fuzhen, Li, Jingxuan, Zhu, Feng, Liu, Ting, Xu, Ben, Kim, Tae-Hoon, Kramer, Matthew J., Ma, Cheng, Zhou, Lin, and Nan, Ce-Wen. Wed . "Atomically Intimate Contact between Solid Electrolytes and Electrodes for Li Batteries". United States. doi:10.1016/j.matt.2019.05.004.
@article{osti_1569737,
title = {Atomically Intimate Contact between Solid Electrolytes and Electrodes for Li Batteries},
author = {Li, Fuzhen and Li, Jingxuan and Zhu, Feng and Liu, Ting and Xu, Ben and Kim, Tae-Hoon and Kramer, Matthew J. and Ma, Cheng and Zhou, Lin and Nan, Ce-Wen},
abstractNote = {Replacing liquid electrolytes with solid ones in Li-ion batteries can greatly alleviate the notorious safety issues and potentially break the “glass ceiling” for energy density. Nevertheless, the non-infiltrative nature of solid electrolytes makes it difficult to realize an intimate electrode-electrolyte contact similar to that between solid and liquid. Here, a non-conventional approach was proposed to overcome this challenge. We discovered that the Li-rich layered electrodes and perovskite electrolytes may form epitaxial interfaces, enabling an atomically intimate solid-solid contact. With such “epitaxial” composite electrodes successfully prepared, the seamless solid-solid electrode-electrolyte contact led to a rate capability comparable with that of the solid-liquid composite electrode. The epitaxy approach raised here could inspire an efficient protocol for addressing the electrode-electrolyte contact issue for solid-state batteries.},
doi = {10.1016/j.matt.2019.05.004},
journal = {Matter},
number = 4,
volume = 1,
place = {United States},
year = {2019},
month = {10}
}

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This content will become publicly available on October 2, 2020
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