固态电池复合电解质研究综述  

Overview of research on composite electrolytes for solid-state batteries

作　　者：许卓 郑莉莉 陈兵[1,2,3] 张涛 常修亮[1,2,3] 韦守李 戴作强[1,2,3] XU Zhuo;ZHENG Lili;CHEN Bing;ZHANG Tao;CHANG Xiuling;WEI Shouli;DAI Zuoqiang(College of Mechanical and Electrical Engineering,Qingdao 266071,Shandong,China;Engineering Technology Center of Power Integration and Energy Storage System,Qingdao University,Qingdao 266071,Shandong,China;National and Local Joint Engineering Technology Center for Intelligent Power Integration Technology for Electric Vehicles(Qingdao),Qingdao 266071,Shandong,China)

机构地区：[1]青岛大学机电工程学院,山东青岛266071 [2]青岛大学动力集成及储能系统工程技术中心,山东青岛266071 [3]电动汽车智能化动力集成技术国家地方联合工程技术中心(青岛),山东青岛266071

出　　处：《储能科学与技术》2021年第6期2117-2126,共10页Energy Storage Science and Technology

基　　金：电动汽车储电系统电(储能电池)-电(动力电池/超级电容)耦合成组技术研究(40518060027)。

摘　　要：目前单一的无机固态电解质、聚合物固态电解质分别存在着离子电导率低、产生枝晶、界面不稳定等各种问题,无法满足全固态锂金属电池的性能要求。有机聚合物电解质和无机电解质复合形成的复合固态电解质能够不同程度地增强电导率、抑制枝晶产生、提高机械强度、提高界面稳定性以及兼容性等,得到了广泛关注与研究。本文综述了复合固态电解质在提高锂离子电导率、抑制锂枝晶、提高电化学稳定性三个重要方面的改进方向、措施,并展望复合固态电池的发展方向,为复合固态电池的发展和应用提供借鉴。At the moment,there are numerous issues with single inorganic solid electrolytes and polymer solid electrolytes,such as low ionic conductivity,dendrite formation,unstable interfaces,and so on.In varying degrees,composite solid electrolytes formed by organic polymer electrolytes and inorganic electrolytes can improve conductivity,inhibit dendrite formation,improve mechanical strength,interface stability,and compatibility.This paper reviews the improvement direction and measures of composite solid-state electrolytes in improving lithium ion conductivity,inhibiting lithium dendrite,and improving electrochemical stability.In addition,the development direction of the composite solid-state battery is anticipated,which serves as a reference for the development and application of the composite solid-state battery.

关 键 词：复合电解质 离子电导率 锂枝晶抑制 电化学稳定性 

分 类 号：TM912[电气工程—电力电子与电力传动]