Challenges and perspectives of garnet solid electrolytes for all solid-state lithium batteries

By Qi Liu, Zhen Geng, Cuiping Han, Yongzhu Fu, Song Li, Yan‐Bing He, Feiyu Kang, Baohua Li. Journal of Power Sources, 2018

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Abstract Garnet Li7La3Zr2O12 (LLZO) solid electrolytes recently have attracted tremendous interest as they have the potential to enable all solid-state lithium batteries (ASSLBs) owing to high ionic conductivity (10−3 to 10−4 S cm−1), negligible electronic transport, wide potential window (up to 9 V), and good chemical stability. Here we present the key issues and challenges of LLZO in the aspects of ion conduction property, interfacial compatibility, and stability in air. First, different preparation methods of LLZO are reviewed. Then, recent progress about the improvement of ionic conductivity and interfacial property between LLZO and electrodes are presented. Finally, we list some emerging LLZO-based solid-state batteries and provide perspectives for further research. The aim of this review is to summarize the up-to-date developments of LLZO and lead the direction for future development which could enable LLZO-based ASSLBs.

Subfields: Electrical and Electronic Engineering, Materials Chemistry

View Paper: https://www.semanticscholar.org/paper/bce2960a68512e00bb0ac8a471d4e19b6c23f8b6

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In Electrical and Electronic Engineering

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