A thin free-standing composite solid electrolyte film for solid-state lithium metal batteries

Yongtao Wang; Lingqiao Wu; Xianwei Guo; Peipei Ding; Zhiyuan Lin; Yinzhong Wang; Xin Yin; Haijun Yu

doi:10.1039/d2cc02203f

A thin free-standing composite solid electrolyte film for solid-state lithium metal batteries

Chem Commun (Camb). 2022 Jul 7;58(55):7646-7649. doi: 10.1039/d2cc02203f.

Authors

Yongtao Wang^{1

2}, Lingqiao Wu^{1

2}, Xianwei Guo^{1

2}, Peipei Ding^{1

2}, Zhiyuan Lin^{1

2}, Yinzhong Wang^{1

2}, Xin Yin^{1

2}, Haijun Yu^{1

2}

Affiliations

¹ Institute of Advanced Battery Materials and Devices, Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing, 100124, P. R. China. [email protected].
² Key Laboratory of Advanced Functional Materials, Ministry of Education, Beijing University of Technology, Beijing, 100124, P. R. China.

PMID: 35723514
DOI: 10.1039/d2cc02203f

Abstract

A thin free-standing composite solid electrolyte film (CSE, ∼15 μm) is prepared by a tape casting and solution infusion method, which owns a high ionic conductivity (2.76 × 10^-4 S cm^-1 at 25 °C) and a wide electrochemical stability window (4.8 V vs. Li⁺/Li). The CSE-based solid-state lithium metal batteries with the LiCoO₂ cathode present good cycling stability and capacity retention with a 4.5 V cut-off voltage.