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Multi‐Functional Layered WS 2 Nanosheets for Enhancing the Performance of Lithium–Sulfur Batteries
Author(s) -
Lei Tianyu,
Chen Wei,
Huang Jianwen,
Yan Chaoyi,
Sun Haoxuan,
Wang Chao,
Zhang Wanli,
Li Yanrong,
Xiong Jie
Publication year - 2017
Publication title -
advanced energy materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.08
H-Index - 220
eISSN - 1614-6840
pISSN - 1614-6832
DOI - 10.1002/aenm.201601843
Subject(s) - materials science , lithium (medication) , sulfur , carbon fibers , cathode , nanotechnology , composite number , electrical engineering , composite material , engineering , medicine , metallurgy , endocrinology
A nonpolar/polar composite comprising tungsten sulfide nanosheets on carbon nanofibers (CNFs) is used for the cathode in lithium–sulfur batteries. These batteries demonstrate an ultra‐long cycle life of 1500 cycles at a charge/discharge rate of 2 C, and they maintain about 90% specific capacity with a high specific capacity of 502 mA h g −1 . These batteries present a significant performance improvement in the field of Li–S batteries.