Chem. J. Chinese Universities ›› 2021, Vol. 42 ›› Issue (5): 1331.doi: 10.7503/cjcu20210003

• Review • Previous Articles     Next Articles

Catalysis in Li-sulfur Battery: Materials and Characterization

GENG Chuannan1, HUA Wuxing1, LING Guowei2, TAO Ying1, ZHANG Chen2(), YANG Quanhong1()   

  1. 1.School of Chemical Engineering and Technology,Tianjin University,Tianjin 300350,China
    2.School of Marine Science and Technology,Tianjin University,Tianjin 300072,China
  • Received:2021-01-04 Online:2021-05-10 Published:2021-05-08
  • Contact: ZHANG Chen,YANG Quanhong E-mail:zhangc@tju.edu.cn;qhyangcn@tju.edu.cn
  • Supported by:
    the National Natural Science Foundation of China(51932005);the National Key Research and Development Program of China(2018YFE0124500);the Young Elite Scientists Sponsorship Program by Tianjin, China(TJSQNTJ-2020-11);the Natural Science Foundation of Tianjin, China(18JCQNJC02300)

Abstract:

Lithium-sulfur(Li-S) battery is a promising next-generation energy storage system with ultrahigh energy density. However, the intrinsic “solid-liquid-solid” sluggish reaction causes unexpected shuttling of polysulfides, severely limiting the energy density and cycling performance. How to accelerate the reversible sulfur redox reaction has become the key to realize the breakthrough in the practical use of Li-S battery. Recently, the catalysis process has been introduced into Li-S battery. The introduction of high-efficiency catalysts into Li-S battery can reduce the energy barrier of sulfur conversion, and accelerate the "solid-liquid-solid" reaction. Thus, the shuttling of polysulfides can be reduced with a much lower electrolyte usage, further impro-ving the overall performance of Li-S battery. Herein, the research progress of high-efficiency catalysts in Li-S battery is systematically summarized and in?situ characterization techniques are proposed as significant strategy to illustrate the catalytic mechanism in Li-S battery. Moreover, comprehensive perspectives are given to guide the further research and development of Li-S battery.

Key words: Lithium-sulfur battery, Shuttle effect, Catalytic mechanism, In situ characterization

CLC Number: 

TrendMD: