固体电解质Li_(1.3)Al_(0.3)Ti_(1.7)(PO_4)_3烧结片的制备与表征  

Fabrication and characterization of solid-state electrolyte Li_(1.3)Al_(0.3)Ti_(1.7)(PO_4)_3 sintered slice

作　　者：何海亮[1] 吴显明[1,2] 陈上[1,2] 赵俊海[1] 丁其晨[1] 陈守彬[1] 

机构地区：[1]吉首大学化学化工学院,湖南吉首416000 [2]湘西自治州矿产与新材料技术创新服务中心,湖南吉首416000

出　　处：《应用化工》2014年第11期1945-1947,1951,共4页Applied Chemical Industry

基　　金：国家自然科学基金资助项目(21263004)

摘　　要：以固相法合成固体电解质Li1.3Al0.3Ti1.7(PO4)3(LATP)粉末。研究了烧结温度以及烧结时间对LATP离子电导率的影响。采用X射线衍射、扫描电子显微镜和交流阻抗技术对材料粉末以及烧结片相组成、结构和离子导电性进行表征。结果表明,900℃条件下合成的粉末为纯相LATP,颗粒均匀,当LATP电解质基片在900℃下烧结4 h,得到的LATP烧结片表面致密光滑,而且离子电导率较高,为3.03×10-4S/cm。The solid-state electrolyte Li1. 3 Al0. 3 Ti1. 7（ PO4 ）3 was prepared by solid state reaction. The effects of sintered temperature and sintered time on the ionic conductivities of Li1. 3 Al0. 3 Ti1. 7（ PO4 ）3 pellet were studied. The phases and microstructures of the prepared materials and sintered slice were investiga-ted by XRD,SEM and ionic conductivities were measured by AC impedance spectra. The results show that the Li1. 3 Al0. 3 Ti1. 7（ PO4 ）3 powder prepared at 900 ℃ is pure phase and the particles are uniformity. Among the Li1. 3 Al0. 3 Ti1. 7（ PO4 ）3 pellets studied,the one sintered from 900 ℃ for 4 h shows the highest ionic conductivity of 3. 03 × 10 -4 S/cm.

关 键 词：固相法 烧结片 Li1.3Al0.3Ti1.7(PO4)3(LATP) 固体电解质 离子电导率 

分 类 号：TQ15[化学工程—电化学工业]