Li_7La_3Zr_2O_(12)固体电解质合成方法进展  

Recent development in preparation of garnet-type Li_7La_3Zr_2O_(12) solid state electrolytes

作　　者：赵鹏程[1] 曹高萍[1] 祝夏雨 文越华[1] 徐艳[1] ZHAO Peng-cheng;CAO Gao-ping;ZHU Xia-yu;WEN Yue-hua;XU Yan(Beijing Key Laboratory of Advanced Chemical Energy Storage Technology and Materials,Research Institute of Chemical Defense,Beijing 100191,China)

机构地区：[1]防化研究院先进化学蓄电技术与材料北京市重点实验室,北京100191

出　　处：《电源技术》2018年第11期1740-1743,共4页Chinese Journal of Power Sources

摘　　要：传统锂离子电池由于采用有机电解液,存在漏液和燃烧的危险,限制了其应用。采用固体电解质的新一代全固态电池在提高电池安全性的同时,也可使电池寿命大大延长。固体电解质可分为高分子聚合物和无机固体陶瓷两类。高分子聚合物固体电解质在室温下离子导电率低,难以用于全固态电池。类石榴石型LLZO(Li_7La_3Zr_2O_(12))是无机固体电解质的最新研究热点之一,具有离子导电率高、稳定性好等优点。基于此,对近年来LLZO固体电解质制备方法进行了综述。Suffering from very serious drawbacks such as leakage and flammability,the traditional lithium ionsecondary batteries adopting liquid electrolytes are unsafe for large-scale electrical power storage systems. Incontrast, all-solid-state batteries are much safer and longer-cycled. Solid-state Li ion conductors can be divided intotwo major groups, polymer electrolytes and inorganic electrolytes. Polymer solid electrolytes can hardly be com-mercialized in all-solid-state batteries due to their poor ionic conductivity. Currently, garnet-type Li7La3Zr2O12 solid state electrolytes are attracting much attention due to their high ionic conductivity, chemical stability and largeelectrochemical widow. In this paper, the recent developments in preparation of LLZO were reviewed.

关 键 词：锂离子电池 固体电解质 离子导电率 石榴石型结构 

分 类 号：TM912.9[电气工程—电力电子与电力传动]