化工学报 ›› 2020, Vol. 71 ›› Issue (9): 4031-4045.DOI: 10.11949/0438-1157.20200496

• 综述与专论 • 上一篇    下一篇

锂硫电池中间层的研究进展

刘鑫(),冯平丽,侯文烁,王振华(),孙克宁   

  1. 北京理工大学化学与化工学院,化学电源与绿色催化北京市重点实验室,北京 100081
  • 收稿日期:2020-05-06 修回日期:2020-07-01 出版日期:2020-09-05 发布日期:2020-09-05
  • 通讯作者: 王振华
  • 作者简介:刘鑫(1996—),女,硕士研究生,lxmaterial@163.com

Research progress of interlayers for lithium-sulfur batteries

Xin LIU(),Pingli FENG,Wenshuo HOU,Zhenhua WANG(),Kening SUN   

  1. Beijing Key Laboratory of Chemical Power Source and Green Catalysis, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, China
  • Received:2020-05-06 Revised:2020-07-01 Online:2020-09-05 Published:2020-09-05
  • Contact: Zhenhua WANG

摘要:

锂硫电池因其能量密度高、成本较低、绿色环保等特点近年来受到广泛关注,但是当采用醚类电解液时,反应的中间产物会发生溶解穿梭导致活性物质流失和库仑效率低等严重问题,在正极和隔膜之间嵌入功能性中间层是解决这些问题的有效手段。对近年来锂硫电池中间层的研究进展进行了介绍,从抑制多硫化物扩散、降低正极界面电阻以及提升反应动力学三个方面对中间层进行分类总结,并展望了锂硫电池功能性中间层未来的设计方向和发展前景。

关键词: 锂硫电池, 中间层, 纳米材料, 电化学, 功能化, 吸附, 催化

Abstract:

Lithium-sulfur batteries have received widespread attention in recent years because of their high energy density, low cost, and environmental protection. However, a series of problems are caused by polysulfides dissolution and shuttle such as loss of active substances and low utilization. Inserting a functional interlayer between the cathode and the separator is an effective way to solve these problems. We introduced the research progress of interlayer for Li-S battery in recent years. The interlayer of inhibiting polysulfide shuttles, the interlayer with low interfacial resistance and the interlayer of improving the reaction kinetics are classified and summarized. Finally, the future design directions and development prospects of the functional interlayer for Li-S battery system are given.

Key words: lithium-sulfur battery, interlayer, nanomaterials, electrochemistry, functionalization, adsorption, catalysis

中图分类号: