Kinetic regulation strategies in lithium-sulfur batteries

被引：0
作者：
Jiao X. [1 ]
Tong C. [1 ]
Li C. [1 ,2 ]
Wei Z. [1 ,2 ]
机构：
[1] School of Chemistry and Chemical Engineering, Chongqing University, Chongqing
[2] Suining Lithium Battery Research Institute of Chongqing University (SLiBaC), Sichuan, Suining
来源：
Huagong Xuebao/CIESC Journal | 2023年 / 74卷 / 01期
关键词：
adsorption; catalysis; electrochemistry; kinetics; lithium polysulfides; lithium-sulfur batteries; lost effect;
D O I：
10.11949/0438-1157.20221071
中图分类号：
学科分类号：
摘要：
Lithium-sulfur (Li-S) batteries are expected to be one of the candidates for next-generation high-energy-density batteries because of their ultra-high theoretical energy density (2600 Wh·kg-1). However, it suffers from low sulfur utilization, rapid capacity fading, and the“lost effect”of lithium polysulfides (LiPSs). These problems make the reaction kinetics of Li-S batteries sluggish, severely limiting their practical applications. Methods such as physical confinement and chemical adsorption can accelerate the redox reaction between sulfur, LiPSs, and Li2S, reduce the loss of LiPSs, and accelerate the kinetic process, which enable the battery with high energy density and long-cycle stability. Based on the overall electrochemical reaction process, this article reviews how materials used in recent years can facilitate the kinetic process, prevent the loss of LiPSs, and evaluate the corresponding strategies. The purpose of this review is to help guide the rational design of improved battery kinetics and the practical application of Li-S batteries. © 2023 Chemical Industry Press. All rights reserved.
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页码：170 / 191
页数：21
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