摘要
锂硒电池因其高能量密度、高体积比容量和适中的输出电压等优点而成为备受关注的二次电池。然而,由于穿梭效应、较差的导电性、低活性物质利用率以及较快的容量衰减等问题,锂硒电池的实际应用受到了极大的阻碍。近些年,研究人员深入研究了锂硒电池的充放电机理,同时也探索了各种碳材料、金属化合物等新材料作为正极载体、中间层和电解液添加剂对于电化学性能的影响。本文系统地总结了锂硒电池的电极材料、中间层和添加剂等的研究进展,并且重点介绍了在充放电机理和系统优化方面的进步,以期为锂硒电池的进一步发展提供新的思路。
Lithium-selenium batteries have attracted much attention as secondary batteries due to their high energy density, high specific volumetric capacity, and moderate output voltage. However, the practical application of Li-Se batteries is hindered by the shuttle effect, poor conductivity, low active material utilization and fast capacity fading. In recent years, researchers investigated the charge-discharge mechanism of Li-Se batteries thoroughly, and studied effects on electrochemical performance from various new materials, including carbon materials and metal compounds, as cathode host, interlayer and electrolyte additives at the same time. This review systematically summarized the research progress of electrode materials, interlayer and electrolyte additives, with focus on charge-discharge mechanism and system optimization. We hope this review could provide perspective for the further development of Li-Se batteries.
作者
黄祺
邢震宇
Qi Huang;Zhenyu Xing(School of Chemistry,South China Normal University,Guangzhou 510006,China;Key Laboratory of Theoretical Chemistry of Environment,Ministry of Education,Guangzhou 510006,China)
出处
《化学进展》
SCIE
CAS
CSCD
北大核心
2022年第11期2517-2539,共23页
Progress in Chemistry
基金
国家自然科学基金青年基金项目(No.22002045)
广东省基础与应用基础研究基金自然科学基金项目(No.2020A1515011549)
广州市基础与应用基础研究项目(No.202102020396)资助。
关键词
锂硒电池
穿梭效应
电极材料
电解液
中间层
lithium selenium battery
shuttle effect
electrode materials
electrolyte
interlayer
