VN and SeS2 embedded porous carbon-nanofiber film as a free-standing electrode for improved Li–SeS2 batteries

Yu Shao; Fei Chen; Naiqing Ren; Shuo Wang; Junru Wang; Zhaoyin Wen; Chunhua Chen

doi:10.1039/D2CC02218D

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VN and SeS₂ embedded porous carbon-nanofiber film as a free-standing electrode for improved Li–SeS₂ batteries†

Yu Shao,^a Fei Chen,^a Naiqing Ren,^a Shuo Wang,^a Junru Wang,^a Zhaoyin Wen

^b and Chunhua Chen

*^a

Author affiliations

* Corresponding authors

^a CAS Key Laboratory of Materials for Energy Conversions, Department of Materials Science and Engineering & Collaborative Innovation Center of Suzhou Nano Science and Technology, University of Science and Technology of China, Anhui Hefei, China
E-mail: cchchen@ustc.edu.cn

^b Key Laboratory of Energy Conversion Laboratory, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China

Abstract

We design a vanadium nitride (VN) modified porous carbon nanofiber film as the host to load SeS₂ as the cathode (SeS₂@VN/CNFs) for improving Li storage capacity. The conductive porous carbon nanofibers can accommodate active SeS₂ and release the volume change. The introduced VN nanoparticles can chemically anchor the intermediate species and improve the utilization of SeS₂. As a result, the SeS₂@VN/CNFs cathode displays a superior electrochemical performance including a high reversible capacity of 806 mAh g⁻¹ at 0.2 C and good long-term cycling stability in Li–SeS₂ batteries.

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Article information

DOI: https://doi.org/10.1039/D2CC02218D
Article type: Communication
Submitted: 19 Apr 2022
Accepted: 08 Jun 2022
First published: 08 Jun 2022

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Chem. Commun., 2022,58, 7570-7573

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VN and SeS₂ embedded porous carbon-nanofiber film as a free-standing electrode for improved Li–SeS₂ batteries

Y. Shao, F. Chen, N. Ren, S. Wang, J. Wang, Z. Wen and C. Chen, Chem. Commun., 2022, 58, 7570 DOI: 10.1039/D2CC02218D

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Chemical Communications