A Si3N4-modified cellulose/glass fiber hybrid separator inhibiting zinc dendrites and cathode dissolution for aqueous zinc-ion batteries

Sijia Liu; Chao Hu; Liujuan Yang; Huimin Ji; Fengyang Peng; Jiawei Zou; Qi Zhang; Yougen Tang; Haiyan Wang; Yixin Li

doi:10.1039/D5CC02491A

A Si₃N₄-modified cellulose/glass fiber hybrid separator inhibiting zinc dendrites and cathode dissolution for aqueous zinc-ion batteries†

Sijia Liu,^a Chao Hu,*^b Liujuan Yang,^a Huimin Ji,^a Fengyang Peng,^a Jiawei Zou,^a Qi Zhang,

*^a Yougen Tang,

^a Haiyan Wang

^a and Yixin Li^c

Author affiliations

* Corresponding authors

^a Hunan Provincial Key Laboratory of Chemical Power Sources, College of Chemistry and Chemical Engineering, Central South University, Changsha, P.R. China
E-mail: qzhang1027@csu.edu.cn

^b School of Materials Science and Engineering, Hunan Institute of Technology, Hengyang, P.R. China
E-mail: 94353982@163.com

^c Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Nankai University, Tianjin, P.R. China

Abstract

A sandwich-structured separator with Si₃N₄-modified cellulose nanofiber layers on glass fiber is designed. The modified separator inhibits zinc dendrites through the zincophilicity of Si₃N₄ and cathode dissolution through weak interactions with VO₂⁺. Benefiting from this dual-functional design, the full cells exhibit excellent electrochemical performance at low current densities.

Chemical Communications

A Si₃N₄-modified cellulose/glass fiber hybrid separator inhibiting zinc dendrites and cathode dissolution for aqueous zinc-ion batteries†

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A Si₃N₄-modified cellulose/glass fiber hybrid separator inhibiting zinc dendrites and cathode dissolution for aqueous zinc-ion batteries

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