锂镧锆氧固体电解质烧结方法的研究进展  

Research progress of sintering methods of Li_(7)La_(3)Zr_(2)O_(12) solid electrolytes

作　　者：侯书增 翟博 张杰 程雪 HOU Shuzeng;ZHAI Bo;ZHANG Jie;CHENG Xue(School of Mechanical Engineering,Sichuan University of Science&Engineering,Yibin Sichuan 644000,China)

机构地区：[1]四川轻化工大学机械工程学院,四川宜宾644000

出　　处：《电源技术》2023年第6期705-708,共4页Chinese Journal of Power Sources

基　　金：四川轻化工大学人才引进项目(2020RC17)。

摘　　要：长期以来,安全问题一直是制约锂电池发展应用的瓶颈。用固态电解质代替液体电解液是突破此瓶颈的最有效方法之一。固态电解质Li_(7)La_(3)Zr_(2)O_(12)离子电导率高、电子电导率低、电化学稳定窗口宽,而且与Li负极接触电化学稳定性好,应用潜力大,故Li7La3Zr2O12的烧结制备方法一直是电池领域的研究热点。阐述了Li_(7)La_(3)Zr_(2)O_(12)的烧结方法,包括固相烧结法、微波烧结法、助烧剂辅助烧结法、场助烧结法、高温快速烧结法,总结了它们各自的特点。为优化现有烧结方法工艺以及寻求更好烧结方法提供参考,对烧结方法的发展方向进行了展望。For a long time,safety issues have been the bottleneck restricting the development and application of lithium-ion batteries.Replacing liquid electrolytes with solid electrolytes is one of the most effective ways to break through this bottleneck.High ionic conductivity,low electronic conductivity and wide electrochemical stability window are desirable properties for solid-state electrolytes.The solid electrolyte Li_(7)La_(3)Zr_(2)O_(12) not only has these properties,but also has good electrochemical stability with Li anode,so has great practical potential.Therefore,the sintering preparation method of Li_(7)La_(3)Zr_(2)O_(12) has always been a research hotspot in the field of batteries.Current sintering methods were introduced,including solid-phase sintering,microwave sintering,sintering aid-assisted sintering,fieldassisted sintering,and high-temperature rapid sintering,and the respective characteristics were summarized.In order to provide reference for optimizing the existing sintering methods and seeking better sintering methods,the development direction of the sintering method was prospected.

关 键 词：锂镧锆氧 固体电解质 烧结方法 离子电导率 

分 类 号：TM912.9[电气工程—电力电子与电力传动]