A novel asymmetrical multilayered composite electrolyte for high-performance ambient-temperature all-solid-state lithium batteries

Zhen Wang, Jiewen Tan, Jiawu Cui, Keyu Xie, Yunfei Bai, Zhanhui Jia, Xiangwen Gao, Yuping Wu, Wei Tang

科研成果: 期刊稿件文章同行评审

10 引用 (Scopus)

摘要

All-solid-state lithium batteries are considered promising next-generation devices for energy storage, but their application still faces various interfacial issues. In this work, an innovative asymmetric multi-layered solid composite electrolyte design is proposed to satisfy the distinctive demands of the cathode and anode simultaneously. A composite electrolyte consisting of poly(ethylene oxide) and Li6.4La3Zr1.4Ta0.6O12 is employed as the intermediate layer to provide sufficient mechanical strength, while a poly(ethylene oxide) buffer layer with high flexibility contacts with the cathode and poly(propylene carbonate) polymer contacts with the anode to reduce interfacial resistance. The enhanced interfacial contact induces the formation of a dense and uniform LiF-rich cathode electrolyte interface film, and the components derived from a poly(propylene carbonate) reaction with Li promotes the solid electrolyte interphase film formation of inorganic lithium species to improve the interface stability. This ingenious design enables sustained cycling of LiFePO4 and LiNi0.6Co0.2Mn0.2O2 based solid-state cells at room temperature, offering a promising avenue for the advancement of high-energy density and safe lithium batteries in the future.

源语言英语
页(从-至)4231-4239
页数9
期刊Journal of Materials Chemistry A
12
7
DOI
出版状态已出版 - 11 1月 2024

指纹

探究 'A novel asymmetrical multilayered composite electrolyte for high-performance ambient-temperature all-solid-state lithium batteries' 的科研主题。它们共同构成独一无二的指纹。

引用此