共沉淀法制备固体电解质Li1.3Al0.3Ti1.7(PO4)3  

Preparting solid electrolyte Li1.3Al0.3Ti1.7(PO4)3 by coprecipitation method

作　　者：杨程响 石斌 王振 王庆杰 YANG Cheng-xiang;SHI Bin;WANG Zhen;WANG Qing-jie(State Key Laboratory of Advanced Chemical Power Sources,Guizhou Meiling Co.,Ltd.,Zunyi,Guizhou 563003,China)

机构地区：[1]特种化学电源国家重点实验室,贵州梅岭电源有限公司,贵州遵义563003

出　　处：《电池》2020年第6期530-533,共4页Battery Bimonthly

基　　金：国家重点研发计划支持项目(项目编号:2017YFB1300500)。

摘　　要：采用共沉淀法制备Li1.3Al0.3Ti1.7(PO4)3(LATP)粉体材料,分析压片成型压力、反应物添加顺序、钛源和pH值等条件对LATP材料的烧结性能、晶体结构和离子导电性能的影响。在实验条件下,相对最佳压力为(200±20)MPa;以正丙醇钛为钛源,pH值为9时,晶粒离子电导率达到1.97×10-3 S/cm;测试不同温度下,LATP的总离子电导率,活化能为0.38eV。Li1.3Al0.3Ti1.7(PO4)3(LATP)powder materials were prepared by coprecipitation method.The effects of pressing pressure,adding sequence of reactants,titanium sources and pH value on the sintering properties,crystal structure and ionic conductivity of LATP materials were investigated.Under experimental conditions,the relative optimum pressure was(200±20)MPa,the ionic conductivity of the grain was 1.97×10-3 S/cm when the pH value was 9.The total ionic conductivity was measured at different temperatures and the activation energy was 0.38 eV.

关 键 词：Li1.3Al0.3Ti1.7(PO4)3 固体电解质 快离子导体 共沉淀 离子电导率 

分 类 号：TM912.9[电气工程—电力电子与电力传动]