关键词: 锂硫电池, 　官能团, 　电解液, 　添加剂

Abstract: Lithium⁃sulfur (Li⁃S) battery was a new battery for high⁃performance energy storage. It was widely used in portable electronic equipment and electric vehicles and was considered to be one of the most promising batteries. The improvement of the electrochemical performance of lithium⁃sulfur batteries could be achieved by developing different electrolyte additives without increasing the cost of the battery.This paper introduced the research progress of additives in lithium⁃sulfur battery electrolytes. Based on the different functional groups of additives,the working principle, advantages and disadvantages of different additives are expounded. Finally,the development direction of lithium⁃sulfur battery electrolyte was prospected.

Key words: Lithium?sulfur (Li?S) battery, Functional group, Electrolyte, Additive