Facile carbon fiber-sewed high areal density electrode for lithium sulfur batteries

Mengxue He; Yaqi Li; Songsong Liu; Rui Guo; Yulin Ma; Jingying Xie; Hua Huo; Xinqun Cheng; Geping Yin; Pengjian Zuo

doi:10.1039/D0CC03224G

Facile carbon fiber-sewed high areal density electrode for lithium sulfur batteries†

Mengxue He,‡^a Yaqi Li,‡^a Songsong Liu,^a Rui Guo,^b Yulin Ma,

^a Jingying Xie,^b Hua Huo,

^a Xinqun Cheng,

^a Geping Yin^a and Pengjian Zuo

*^a

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* Corresponding authors

^a MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemical Engineering and Technology, Harbin Institute of Technology, Harbin 150001, China
E-mail: zuopj@hit.edu.cn
Fax: +86-451-86403961
Tel: +86-451-86403961

^b State Key Laboratory of Space Power Technology, Shanghai Institute of Space Power-Sources, Shanghai 200245, China

Abstract

A high sulfur loading cathode strengthened by using carbon fiber (CF) is achieved via a typical coating method. Interlaced fibers and abundant hairline cracks ensure an unobstructed electron transfer path and sufficient Li-ion transport channels. The CF-sewed electrode with sulfur loading up to 10 mg cm⁻² delivers a high areal capacity of over 7 mA h cm⁻² after 96 cycles with a high coulombic efficiency over 99%.

Chemical Communications

Facile carbon fiber-sewed high areal density electrode for lithium sulfur batteries†

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Facile carbon fiber-sewed high areal density electrode for lithium sulfur batteries

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