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Title: Polymer electrolyte glue : a universal interfacial modification strategy for all-solid-state Li batteries
Authors: Dong, Derui
Zhou, Bin
Sun, Yufei
Zhang, Hui
Zhong, Guiming
Dong, Qingyu
Fu, Fang
Qian, Hao
Lin, Zhiyong
Lu, Derong
Shen, Yanbin
Wu, Jihuai
Chen, Liwei
Chen, Hongwei
Keywords: Engineering::Chemical engineering
Issue Date: 2019
Source: Dong, D., Zhou, B., Sun, Y., Zhang, H., Zhong, G., Dong, Q., . . . Chen, H. (2019). Polymer electrolyte glue : a universal interfacial modification strategy for all-solid-state Li batteries. Nano Letters, 19(4), 2343-2349. doi:10.1021/acs.nanolett.8b05019
Journal: Nano Letters
Abstract: In recent years solid Li+ conductors with competitive ionic conductivity to those of liquid electrolytes have been reported. However, the incorporation of highly conductive solid electrolytes into the lithium-ion batteries is still very challenging mainly due to the high resistance existing at the solid-solid interfaces throughout the battery structure. Here, we demonstrated a universal interfacial modification strategy through coating a curable polymer-based glue electrolyte between the electrolyte and electrodes, aiming to address the poor solid-solid contact and thus decrease high interfacial resistance. The liquid glue exhibits both great wettability as well as chemical/electrochemical stability to most of the electrodes, and it can be easily solidified into a polymer electrolyte layer through a "post-curing" treatment. As a result, symmetric Li batteries with the glue modification exhibit much smaller impedance and enhanced stability upon plating/stripping cycles compared to the batteries without glue modification. The all-solid-state Li-S batteries with glue modification show significantly enhanced performances. The strategy of developing glue electrolytes to improve the electrode-electrolyte interface contact provides an alternative option for improving many other solid-state batteries.
ISSN: 1530-6984
DOI: 10.1021/acs.nanolett.8b05019
Rights: This document is the Accepted Manuscript version of a Published Work that appeared in final form in Nano Letters, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see
Fulltext Permission: open
Fulltext Availability: With Fulltext
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