Preparation of High Lithium Ion Conductive Glass-Ceramics Solid Electrolytes in the LiTi2(PO4)3 System by the Mechanochemical Method and their Application as Coating Materials of LiCoO2

Hideyuki  Morimoto; Yuya Someno; Yasuhito Arai; Shinichi Tobishima

doi:10.4028/www.scientific.net/KEM.388.77

Paper Titles

Classical Molecular Dynamics Simulations on Fast Li Ion Conduction in (Li,La)TiO₃
p.61

Preparation of Ru Nano-Particles Dispersed on a Highly-Porous Material
p.65

Defect Control and Lithium-Ion Conducting Properties of Layered Perovskite Oxides Li₂SrTa₂O₇
p.69

Oxygen Reduction Electrode Properties of Oxide Nanosheet-Based Materials
p.73

Preparation of High Lithium Ion Conductive Glass-Ceramics Solid Electrolytes in the LiTi₂(PO₄)₃ System by the Mechanochemical Method and their Application as Coating Materials of LiCoO₂
p.77

Electrochemical Properties of Carbon Doped LiFePO₄ Cathode Materials Prepared by Spray Pyrolysis
p.81

Mass Production and Battery Properties of LiNi_0.5Mn_1.5O₄ Powders Prepared by Internal Combustion Type Spray Pyrolysis
p.85

Electrochemical Properties of LiNi_1/3Co_1/3Mn_1/3O₂ Powders Prepared by Internal Combustion Type Spray Pyrolysis
p.89

A Study of Intermediate Temperature Proton-Conductive Phosphate Electrolytes
p.93

HomeKey Engineering MaterialsKey Engineering Materials Vol. 388Preparation of High Lithium Ion Conductive...

Preparation of High Lithium Ion Conductive Glass-Ceramics Solid Electrolytes in the LiTi₂(PO₄)₃ System by the Mechanochemical Method and their Application as Coating Materials of LiCoO₂

Abstract:

Amorphous fine powder in the Li2O-Al2O3-TiO2-P2O5 (LATP) system were prepared directly from a mixture of Li2O, Al2O3, TiO2, and P2O5 as starting materials using a mechanical milling technique at room temperature. LATP glass-ceramics were obtained by heat treatment of the mechanochemically prepared amorphous powder over the crystallization temperature. X-ray diffraction peaks due to LiTi2(PO4)3 and AlPO4 crystals for LATP glass-ceramics were observed. Thus, high lithium ion conducting LATP glass-ceramics solid electrolytes were prepared successfully from the mechanochemically prepared amorphous powder. The LATP glass-ceramic fine particles were investigated as coating materials of LiCoO2 cathode in lithium ion batteries. The LATP glass-ceramics coated LiCoO2 electrode materials exhibited a good charge-discharge performance for charging up to a high voltage (4.5 V vs. Li/Li+).