Inorganic glass electrolytes with polymer-like viscoelasticity

Tao Dai, Siyuan Wu, Yaxiang Lu (), Yang Yang, Yuan Liu, Chao Chang, Xiaohui Rong, Ruijuan Xiao, Junmei Zhao (), Yanhui Liu, Weihua Wang, Liquan Chen and Yong-Sheng Hu ()
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Tao Dai: Chinese Academy of Sciences
Siyuan Wu: Chinese Academy of Sciences
Yaxiang Lu: Chinese Academy of Sciences
Yang Yang: Chinese Academy of Sciences
Yuan Liu: Chinese Academy of Sciences
Chao Chang: Chinese Academy of Sciences
Xiaohui Rong: Chinese Academy of Sciences
Ruijuan Xiao: Chinese Academy of Sciences
Junmei Zhao: Chinese Academy of Sciences
Yanhui Liu: Chinese Academy of Sciences
Weihua Wang: Chinese Academy of Sciences
Liquan Chen: Chinese Academy of Sciences
Yong-Sheng Hu: Chinese Academy of Sciences

Nature Energy, 2023, vol. 8, issue 11, 1221-1228

Abstract: Abstract Solid-state batteries offer an alternative promising power source for electric vehicles. However, the interfacial mechanical stability of inorganic electrolytes is inferior to that of organic electrolytes. A high stack pressure (several to hundreds of megapascals) is often required to maintain intimate contact with electrodes. Here we report a class of viscoelastic inorganic glass (VIGLAS) to serve as solid electrolytes by simply replacing chlorine of tetrachloroaluminates with oxygen. The VIGLAS possesses high ionic conductivity (~1 mS cm−1 at 30 °C) for both Li+ and Na+, superior chemo-mechanical compatibility with 4.3 V cathodes and the ability to enable pressure-less Li- and Na-based solid-state batteries (

Date: 2023
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DOI: 10.1038/s41560-023-01356-y

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