All-Solid-State Lithium Battery Fitted with Polymer Electrolyte Enhanced by Solid Plasticizer and Conductive Ceramic Filler
Name
2018_J.Electrochem.Soc.-2018-Chen-A3558-65.pdf
Description
Published version
Size
1.17 MB
Format
Adobe PDF
Checksum (MD5)
16892e15c3efd7d8beca528276e0ccf5
Author(s)
Chen, Fei
Zha, Wenping
Yang, Dunjie
Cao, Shiyu
Shen, Qiang
Zhang, Lianmeng
Sadoway, Donald R
Date Issued
2018
Journal
Journal of The Electrochemical Society
Publisher
The Electrochemical Society
Version
Final published version
Abstract
© 2018 The Electrochemical Society. The scalable multifunctional solid electrolyte (MSE) composed of poly(ethylene oxide)-solid oxide lithium-ion conductor Li7La3Zr2O12-succinonitrile (PEO18-LiTFSI-LLZO-SN) is demonstrated as a promising candidate for high performance all-solid-state batteries. Among these electrolytes, PEO18-LiTFSI-7.5%LLZO-10%SN presents a highest ionic conductivity of 1.19 × 10−4 S · cm−1 at room temperature and a much higher Li+ transference number. Moreover, this MSE has a good electrochemical stability of 5.5 V vs. Li/Li+, and exhibits excellent interfacial compatibility against lithium electrode. Owing to the improved interface contact and enhanced Li+ transference, the MSE-based ASSLBs present outstanding cycling and rate performance at 60◦C. Notably, the initial discharge capacity at 1 C is 130.2 mAh · g−1, and after 500 cycles 80.0% capacity is retained. The cell can be operated normally at lower temperatures (30◦C and 45◦C) while still delivering a relatively high specific capacity.
MIT Department
Massachusetts Institute of Technology. Department of Materials Science and Engineering
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DOI of Published Version
https://doi.org/10.1149/2.1371814JES
