多硫化物
电解质
材料科学
阴极
溶解
化学工程
硫黄
电化学
锂(药物)
无机化学
法拉第效率
电极
纳米技术
硫化物
化学
冶金
物理化学
内分泌学
工程类
医学
作者
Huiping Du,Zhonghua Zhang,Jianjiang He,Zili Cui,Jingchao Chai,Jun Ma,Ze Yang,Changshui Huang,Guanglei Cui
出处
期刊:Small
[Wiley]
日期:2017-09-28
卷期号:13 (44)
被引量:121
标识
DOI:10.1002/smll.201702277
摘要
Abstract Novel sulfur cathodes hold the key to the development of metal–sulfur batteries, the promising candidate of next‐generation high‐energy‐storage systems. Herein, a fascinating sulfur cathode based on sulfide graphdiyne (SGDY) is designed with a unique structure, which is composed of a conducting carbon skeleton with high Li + mobility and short sulfur energy‐storing unites. The SGDY cathode can essentially avoid polysulfide dissolution and be compatible with commercially available carbonate‐based electrolytes and Grignard reagent‐based electrolytes (all phenyl complex (APC) type electrolytes). Both the assembled Li–S and Mg–S batteries exhibit excellent electrochemical performances including large capacity, superior rate capability, high capacity retention, and high Coulombic efficiency. More importantly, this is the first implementation case of a reliable Mg–S system based on nucleophilic APC electrolytes.
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