电化学2023，Vol.29Issue(4)：5-19,15.DOI:10.13208/j.electrochem.2217003
高性能锂硫电池用钴/碳复合材料硫宿主
Cobalt/Carbon Composites as Sulfur Hosts for High-Performance Lithium-Sulfur Batteries
摘要
Abstract
Lithium-sulfur(Li-S)battery is one of the promising energy storage devices because of its high energy density.However,the sulfur cathode suffers from sluggish electrochemical reaction kinetics,slow charge transfer,large volume expansion and severe shuttle effect of lithium polysulfides inevitably resulting in low reversible capacity,poor rate performance and short cycle life,limiting its practical applications.Herein,the recent progress of cobalt/carbon composites,including cobalt nanoparticles and cobalt single atoms,as the sulfur host materials in Li-S batteries is overviewed.In general,cobalt plays the role of electrocatalyst,which inhibits the shuttle effect of lithium polysulfides,accelerates the electrochemical reaction kinetics,facilitates ion/electron transfer and alleviates volume expansion.Meanwhile,the prospects for the development of cobalt/carbon composites as sulfur hosts in Li-S batteries are proposed.It is expected to offer a whole blueprint and constructive suggestions for the cobalt/carbon composites as sulfur hosts for Li-S batteries,and these strategies can also be effective for other metal-sulfur bat-teries.关键词
锂硫电池/硫宿主/钻/碳复合材料/电催化剂/电化学性能Key words
Lithium-sulfur batteries/Sulfur hosts/Cobalt/carbon composites/Electrocatalysts/Electrochemical performance引用本文复制引用
杨云锐,董欢欢,郝志强,何祥喜,杨卓,李林,俞术雷..高性能锂硫电池用钴/碳复合材料硫宿主[J].电化学,2023,29(4):5-19,15.基金项目
This work was jointly supported by the National Natural Science Foundation of China(52202286,51971124,52171217)and Zhejiang Provincial Nat-ural Science Foundation of China(LZ21E010001). （52202286,51971124,52171217）
