合金材料在锂金属负极中的应用研究进展  

Research progress of alloy materials’application in lithium metal anode

作　　者：南文争 李昕昊 许俊兴 燕绍九 戴圣龙 NAN Wenzheng;LI Xinhao;XU Junxing;YAN Shaojiu;DAI Shenglong(AECC Beijing Institute of Aeronautical Materials,Beijing 100095,China;Laboratory of Geological Prospecting and Evaluation(Ministry of Education),Faculty of Materials Science and Chemistry,China University of Geosciences,Wuhan 430074,China)

机构地区：[1]中国航发北京航空材料研究院,北京100095 [2]中国地质大学(武汉)材料与化学学院地质探测与评估教育部重点实验室,武汉430074

出　　处：《材料工程》2023年第7期78-88,共11页Journal of Materials Engineering

摘　　要：金属锂具有极低的电极电势及超高的比容量,是高比能锂二次电池的理想负极材料。然而,锂枝晶生长、体积膨胀效应及界面不稳定等问题限制了其商业化应用。通过合金负极、界面保护、负极结构设计及固态电解质等策略,可显著改善上述问题。锂合金材料具有高比容量、高离子电导率及良好亲锂性等特点,在上述策略中均扮演着重要角色。本文介绍合金材料的电化学性质,综述近年来合金材料在锂金属负极中的应用研究进展;最后梳理合金材料在锂金属负极中应用所面临的问题,并提出加强基础理论研究等建议。Lithiumis are considered as an ideal anode material for the next generation high energy density secondary batteries owing to its extremely low reduction potential and high specific capacity.However,its commercial application in lithium metal batteries is hindered by the problems of lithium dendritic growth,volume expansion effect and interface instability.To solve this problems,effective strategies including alloy anode,interface protection,structured anode design and solid electrolyte have been developed.Alloy materials play an important role in above strategies with its superior specific capacity,high Li+conductivity and good lithium affinity.The electrochemical properties of alloy were reviewed and the recent research development of alloy materials’application in lithium metal anode was futher discussed.Last,the main existing problems of alloy materials’application in lithium metal anode were summarized and it was pointed out that the basic theoretical research should be strengthened.

关 键 词：合金负极 界面保护 负极结构设计 固态电解质 锂金属负极 

分 类 号：TB332[一般工业技术—材料科学与工程]