二次電池用電極の原料粉体の製造と評価

抄録

Expand in application of lithium ion battery for the renewable energy accumulation and the vehicle applications such as motorcar and electric train, scaling up of the battery capacities are widely studied. Well known for the high thermal stability and long life, and the use of iron for the raw material, which is inexhaustible metal resource, LiFePO₄ is the most suitable cathode material for the large size lithium ion batteries. Sumitomo Osaka Cement had started production and sales of LiFePO₄ as secondary battery cathode material since April, 2010. In this paper, the general information of the hydrothermal process used for the synthesis of LiFePO₄ and the following powder properties of the carbon coated LiFePO₄ and its electrode characteristics will be given.