Improved Stability and Cyclability of Ceramic Solid Electrolyte by Coating Polymer
Abstract
Rechargeable all-solid-state lithium (Li) metal batteries show better safety and energy density compared to commercial Li-ion batteries using liquid electrolyte. As the key component of Li metal batteries, ceramic solid-state electrolyte has attracted great interest because of its high ion conductivity and great potential in interfacing with Li metal. Ceramic electrolyte has a more stable interface with Li metal than liquid electrolyte, but chemical reaction and Li dendrite growth at the electrolyte/Li interface are still significant, which causes device degradation and failure by cycling of Li plating and stripping. Unlike ceramic electrolyte, polymer electrolyte has a relatively stable interface with Li metal and better mechanical flexibility. Therefore, we introduced a polymer electrolyte coating to protect the ceramic electrolyte from direct contact with Li metal. The galvanotactic cycling Li plating/striping data on the devices with (without) the coating illustrates increased (decreased) overall conductivity and cyclability of the test cell by the cycling. Nanometer-scale ionic-transport imaging, based on atomic force microscopy, shows that cycling degrades the ceramic-only electrolyte by partially blocking ionic transport in areas; in contrast, cycling on the polymer-coated electrolyte improves ionic conductivity. Compared with the ceramic-only electrolyte, this novel polymer electrolyte coating on ceramic electrolyte shows less degradation whenmore »
- Authors:
-
- National Renewable Energy Lab. (NREL), Golden, CO (United States)
- Colorado School of Mines, Golden, CO (United States)
- Univ. of Colorado, Boulder, CO (United States)
- Publication Date:
- Research Org.:
- National Renewable Energy Lab. (NREL), Golden, CO (United States)
- Sponsoring Org.:
- USDOE National Renewable Energy Laboratory (NREL), Laboratory Directed Research and Development (LDRD) Program
- OSTI Identifier:
- 1598976
- Report Number(s):
- NREL/JA-5K00-76018
Journal ID: ISSN 1945-7111
- Grant/Contract Number:
- AC36-08GO28308
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Journal of the Electrochemical Society (Online)
- Additional Journal Information:
- Journal Name: Journal of the Electrochemical Society (Online); Journal Volume: 167; Journal Issue: 2; Journal ID: ISSN 1945-7111
- Publisher:
- IOP Publishing
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 25 ENERGY STORAGE; polymer; ceramic; solid-state lithium-ion battery
Citation Formats
Yin, Yanli, Jiang, Chun Sheng, Guthrey, Harvey L., Xiao, Chuanxiao, Seitzman, Natalie, Ban, Chunmei, and Al-Jassim, Mowafak M. Improved Stability and Cyclability of Ceramic Solid Electrolyte by Coating Polymer. United States: N. p., 2020.
Web. doi:10.1149/1945-7111/ab68c7.
Yin, Yanli, Jiang, Chun Sheng, Guthrey, Harvey L., Xiao, Chuanxiao, Seitzman, Natalie, Ban, Chunmei, & Al-Jassim, Mowafak M. Improved Stability and Cyclability of Ceramic Solid Electrolyte by Coating Polymer. United States. https://doi.org/10.1149/1945-7111/ab68c7
Yin, Yanli, Jiang, Chun Sheng, Guthrey, Harvey L., Xiao, Chuanxiao, Seitzman, Natalie, Ban, Chunmei, and Al-Jassim, Mowafak M. Wed .
"Improved Stability and Cyclability of Ceramic Solid Electrolyte by Coating Polymer". United States. https://doi.org/10.1149/1945-7111/ab68c7. https://www.osti.gov/servlets/purl/1598976.
@article{osti_1598976,
title = {Improved Stability and Cyclability of Ceramic Solid Electrolyte by Coating Polymer},
author = {Yin, Yanli and Jiang, Chun Sheng and Guthrey, Harvey L. and Xiao, Chuanxiao and Seitzman, Natalie and Ban, Chunmei and Al-Jassim, Mowafak M.},
abstractNote = {Rechargeable all-solid-state lithium (Li) metal batteries show better safety and energy density compared to commercial Li-ion batteries using liquid electrolyte. As the key component of Li metal batteries, ceramic solid-state electrolyte has attracted great interest because of its high ion conductivity and great potential in interfacing with Li metal. Ceramic electrolyte has a more stable interface with Li metal than liquid electrolyte, but chemical reaction and Li dendrite growth at the electrolyte/Li interface are still significant, which causes device degradation and failure by cycling of Li plating and stripping. Unlike ceramic electrolyte, polymer electrolyte has a relatively stable interface with Li metal and better mechanical flexibility. Therefore, we introduced a polymer electrolyte coating to protect the ceramic electrolyte from direct contact with Li metal. The galvanotactic cycling Li plating/striping data on the devices with (without) the coating illustrates increased (decreased) overall conductivity and cyclability of the test cell by the cycling. Nanometer-scale ionic-transport imaging, based on atomic force microscopy, shows that cycling degrades the ceramic-only electrolyte by partially blocking ionic transport in areas; in contrast, cycling on the polymer-coated electrolyte improves ionic conductivity. Compared with the ceramic-only electrolyte, this novel polymer electrolyte coating on ceramic electrolyte shows less degradation when in contact with Li metal.},
doi = {10.1149/1945-7111/ab68c7},
journal = {Journal of the Electrochemical Society (Online)},
number = 2,
volume = 167,
place = {United States},
year = {2020},
month = {1}
}
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