Abstract:

The factors limiting the cycle life of lithium-sulfur batteries and effect of cathode，anode and electrolyte on the cycle life are reviewed. The factors limiting the cycle life are introduced as follows：formation of irreversible Li₂S，failure of porous structure of the cathode and parasitic reaction between species of electrolyte and lithium anode. The approaches to improving cycle life of lithium sulfur batteries are introduced as follows：appropriate binder，carbon materials and preparation method of cathode，protective technology of lithium anode，appropriate species of electrolyte，structure and design of battery. Future development of the research is also prospected.

摘要：

综述了制约锂硫电池循环性能的因素和正极、负极、电解质对锂硫电池循环性能改善的影响。介绍了制约锂硫电池循环性能的主要因素：不可逆硫化锂的形成、硫正极多孔结构的失效和电解液组分与锂负极的副反应。分别介绍了改善锂硫电池循环性能的途径：合适的黏合剂、碳材料、正极制备工艺，锂负极保护技术，合理组分的电解质，电池结构与设计。并在此基础上对今后的发展趋势进行了展望。