Li_2O-TiO_2-SiO_2-P_2O_5和Li_2O-TiO_2-Al_2O_3-P_2O_5体系锂离子固体电解质的制备及性能研究  

Synthesis and Characterization of Li-ion Solid Electrolyte of Li_2O-TiO_2-SiO_2-P_2O_5 and Li_2O-TiO_2-Al_2O_3-P_2O_5 System

作　　者：李文[1] 王淼[1] 李振华[2] 尚学府[1] 王恒[1] 王幼文[3] 徐亚伯[1] 

机构地区：[1]浙江大学物理系,杭州310027 [2]浙江大学力学系,杭州310027 [3]浙江大学分析测试中心,杭州310027

出　　处：《无机化学学报》2006年第12期2217-2221,共5页Chinese Journal of Inorganic Chemistry

基　　金：国家自然科学基金资助项目(No.60271009)

摘　　要：The lithium ion-conductive solid electrolyte in the oxide systems of Li2O-TiO2-SiO2-P2O5 and Li2O-TiO2-Al2O3-P2O5 was prepared by solid-state reaction. The electrolyte pellets by cold-pressing method is 13 mm in diameter, about 1 mm in thickness. Phase identification and surface morphology of the products were carried out by X-ray diffraction and scanning electron microscopy. Ionic conductivity of the pellets was investigated through AC impedance. The results show that adulterate other cations can improve the ionic conductivity of the solid electrolyte. The maximum ionic conductivity in the samples is 9.912 × 10-4 S·cm-1 in the Li2O-TiO2-SiO2-P2O5 system.The lithium ion-conductive solid electrolyte in the oxide systems of Li2O-TiO2-SiO2-P2O5 and Li2O-TiO2-Al2O3-P2O5 was prepared By solid-state reaction. The electrolyte pellets By cold-pressing method is 13 mm in diameter, about 1 mm in thickness. Phase identification and surface morphology of the products were carried out by X-ray diffraction and scanning electron microscopy. Ionic conductivity of the pellets was investigated through AC impedance. The results show that adulterate other cations can improve the ionic conductivity of the solid electrolyte. The maximum ionic conductivity in the samples is 9.912 × 10^-4 S·cm^-1 in the LiEO-TiO2-SiOE-P2O5 system.

关 键 词：Li2O-TiO2-SiO2-P2O5 Li2O-TiO2-Al2O3-P2O5 固体电解质 离子电导率 

分 类 号：O613.72[理学—无机化学] O614.31[理学—化学]