有机自由基电池
阳极
阴极
电解质
电化学
锂(药物)
储能
聚合物
材料科学
电池(电)
导电聚合物
快离子导体
纳米技术
锂离子电池的纳米结构
氧化还原
化学
冶金
电极
功率(物理)
复合材料
物理化学
内分泌学
物理
量子力学
医学
作者
Zihui Song,Wanyuan Jiang,Borui Li,Yunpeng Qu,Runyue Mao,Xigao Jian,Fangyuan Hu
出处
期刊:Small
[Wiley]
日期:2024-01-28
卷期号:20 (19)
被引量:6
标识
DOI:10.1002/smll.202308550
摘要
Lithium-sulfur (Li-S) batteries, which store energy through reversible redox reactions with multiple electron transfers, are seen as one of the promising energy storage systems of the future due to their outstanding advantages. However, the shuttle effect, volume expansion, low conductivity of sulfur cathodes, and uncontrollable dendrite phenomenon of the lithium anodes have hindered the further application of Li-S batteries. In order to solve the problems and clarify the electrochemical reaction mechanism, various types of materials, such as metal compounds and carbon materials, are used in Li-S batteries. Polymers, as a class of inexpensive, lightweight, and electrochemically stable materials, enable the construction of low-cost, high-specific capacity Li-S batteries. Moreover, polymers can be multifunctionalized by obtaining rich structures through molecular design, allowing them to be applied not only in cathodes, but also in binders and solid-state electrolytes to optimize electrochemical performance from multiple perspectives. The most widely used areas related to polymer applications in Li-S batteries, including cathodes and electrolytes, are selected for a comprehensive overview, and the relevant mechanisms of polymer action in different components are discussed. Finally, the prospects for the practical application of polymers in Li-S batteries are presented in terms of advanced characterization and mechanistic analysis.
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