Porous Carbon Cloth@CoSe2 as Kinetics‐Enhanced and High‐Loading Integrated Sulfur Host for Lithium–Sulfur Batteries

• DOI: 10.1002/adfm.202316221
• Publication Date: 2024-02-05T03:06:35Z
• Authors: Cheng Wang; Ruiqing Liu; Wenxiu Liu; Wenfeng Zhu; Xiaoxuan Yang; Qiang Wu; Kun Xie; Lvgen Shen; Jingyi Wu; Yiran Liu; Lulu He; Zibo Chen; Jianyu Chen; Cuie Zhao; Xiujing Lin; Li Shi; Jin Zhao; Xiaomiao Feng; Gang Wu; Yanwen Ma
• Keywords: Polysulfide; Carbon fibers

Abstract Carbon cloth (CC) possesses great potential as a sulfur host because of its excellent conductivity, flexibility, and easily modified free‐standing structure. However, the previous works do not take full advantage CC except for role support current collector. The smooth surface, small specific surface area, poor binding force between coating materials matrix are unfavorable loading materials. slow redox kinetics low cathodes still seriously restrict development Lithium–Sulfur (Li–S) batteries. Herein, porous carbon cobalt selenide (PCC@CoSe 2 ) is constructed an integrated through pore‐creating selenylation strategy. engineering greatly optimizes 3D pore structure to raise catalyst provides enough space accommodate volume change species. In addition, CoSe particles nano‐catalyst units embedded in PCC can effectively adsorb‐catalyze polysulfides improve reaction kinetics. resulting cathode has realized high‐efficiency polysulfide catalytic conversion fast lithium ion migration, significantly enhancing loading.