分离器(采油)
多硫化物
法拉第效率
电化学
硫黄
锂硫电池
储能
电极
化学
材料科学
能量密度
电池(电)
化学工程
有机化学
工程类
工程物理
物理
电解质
功率(物理)
物理化学
热力学
量子力学
作者
Bowen Zhang,Bo Sun,Fei Pei,Feng Liu,Chunxiang Zhu,Bin Xu,Yong Pan,Chi Chen
出处
期刊:Membranes
[MDPI AG]
日期:2022-08-17
卷期号:12 (8): 790-790
被引量:14
标识
DOI:10.3390/membranes12080790
摘要
Lithium-sulfur batteries with high theoretical specific capacity and high energy density are considered to be one of the most promising energy storage devices. However, the “shuttle effect” caused by the soluble polysulphide intermediates migrating back and forth between the positive and negative electrodes significantly reduces the active substance content of the battery and hinders the commercial applications of lithium–sulfur batteries. The separator being far from the electrochemical reaction interface and in close contact with the electrode poses an important barrier to polysulfide shuttle. Therefore, the electrochemical performance including coulombic efficiency and cycle stability of lithium–sulfur batteries can be effectively improved by rationally designing the separator. In this paper, the research progress of the modification of lithium–sulfur battery separators is reviewed from the perspectives of adsorption effect, electrostatic effect, and steric hindrance effect, and a novel modification of the lithium–sulfur battery separator is prospected.
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