摘要
金属锂具有高理论比容量和低还原电位,是锂电池阳极的理想材料之一.但在长期循环充放电过程中,金属锂因锂枝晶生长会导致出现界面恶化及能量损失严重等问题,对锂金属电极与电解质表界面反应的优化是一个重要研究方向.本文介绍了锂枝晶产生的危害,从分析及抑制锂枝晶沉积两方面综合评述了为解决这一问题所采取的方法,包括固态电解质界面形成机制和保护机理、表面改性、三维锂阳极和液态/固态电解质等方法,总结了各种方法的优劣势,并展望锂金属电池在能源领域的研究前景.
Lithium(Li)metal has high theoretical specific capacity and low reduction potential,so it is one of the ideal materials for the anode of lithium batteries.During the long-term cycling,however,lithium metal has problems such as interface deterioration and serious energy loss due to lithium dendrites growing.The optimization of interface reaction between lithium metal electrodes and electrolytes is a significant research direction.In the paper,the hazards caused by lithium dendrites was outlined,as well as comprehensively reviewing methods adopted to solve this problem from analysis and inhibition of lithium dendritic deposition,including the formation and protection mechanisms of solid electrolyte interface,surface modification,threedimensional lithium anode,liquid/solid electrolytes,etc.Besides,the advantages and disadvantages of methods above are summarized,and research prospects to lithium metal batteries is expected in the energy field simultaneously.
作者
王增强
孙一翎
钱正芳
王任衡
WANG Zengqiang;SUN Yiling;QIAN Zhengfang;WANG Renheng(College of Physics and Optoelectronic Engineering;College of Electronics and Information Engineering,Shenzhen University,Shenzhen 518060,China)
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
2021年第4期1017-1030,共14页
Chemical Journal of Chinese Universities
基金
深圳市基础研究项目(批准号:20180123,JCYJ20190808173815205)
广东省基础与应用基础研究基金(批准号:2019A1515012111)
深圳市孔雀团队项目(批准号:KQTD20180412181422399)
国家重点研发计划项目(批准号:2019YFB2204500)资助.
关键词
锂金属电池
锂枝晶
固态电解质界面
电解质
Lithium metal battery
Lithium dendrite
Solid electrolyte interface
Electrolyte
