车用固态锂电池研究进展及产业化应用  

Research progress of solid state Li-ion batteries for EV and industrial applications

作　　者：武佳雄 王曦 徐平红 宗磊 朱星宝 WU Jiaxiong;WANG Xi;XU Pinghong;ZONG Lei;ZHU Xingbao(National New Energy Vehicle Technology Innovation Center,Beijing 100174,China;School of Physics,Harbin Institute of Technology,Harbin Heilongjiang 150001,China)

机构地区：[1]北京新能源汽车技术创新中心有限公司,北京100174 [2]哈尔滨工业大学物理学院,黑龙江哈尔滨150001

出　　处：《电源技术》2021年第3期402-405,共4页Chinese Journal of Power Sources

摘　　要：目前新能源汽车用锂离子电池大多采用液态电解质,容易在使用过程中出现胀气、析锂、内短路等安全问题,严重的还会引起爆炸。固态电池是解决液态电池安全问题的一种有效方法,它采用固态电解质作为锂离子的传输介质,具有良好的机械性能,能够抑制锂支晶的生长,防止内短路。另外,固态电池可以采用锂金属负极,实现电池更高的能量密度。世界各国纷纷布局固态电池研发,从固态电解质研发、电极-电解质界面和电池体系等方面开展研究,取得了一系列显著成果。以车用固态电池的发展为主线,从车用动力电池需求、固态电池研究进展、应用现状等方面介绍了动力电池固态化的进展。Some safety problems such as gas emission,lithium plating,internal short circuit and even explosions always happen in LIBs for EV.Solid-state Li-ion battery is an effective method to solve the safety problems because it uses solid-state electrolyte as the transmission medium for lithium ions.Solid-state electrolyte owns good mechanical properties,which can inhibit the growth of lithium dendrite and prevent internal short circuits.In addition,the solidstate Li-ion battery can adopt lithium metal as anode,which can achieve higher energy density of the battery.Due to the advantages mentioned above,countries around the world have deployed the solid-state battery research.The purpose of this review is to introduce the status of research and application on the solid-state Li-ion battery,hoping to provide some general guidelines on the development of solid-state li-ion battery of EV.

关 键 词：新能源汽车 固态电池 固态电解质膜 界面 

分 类 号：TM912[电气工程—电力电子与电力传动]