| 摘要 |
PURPOSE:To improve the charge and discharge property by heat-treating lithium acetate or lithium acetate dihydrate and manganese dioxide to compound LiMn2O4. CONSTITUTION:LiMn2O4 used as a positive electrode active substance is compounded by heat-treating lithium acetate or lithium acetate dihydrate and manganese dioxide. That is, by using lithium acetate or lithium acetate dihydrate and manganese dioxide when LiMn2O4 is compounded, LiMn2O4 can be compounded at a low heat-treatment temperature. As a result, LiMn2O4 can be compounded in a microparticle condition with a large specific surface area where Li<+> ions can input and output easily, and it can be made as a positive electrode active substance of a lithium secondary cell with a large capacity. A lithium secondary cell of an excellent charge and discharge property can be obtained, consequently. |
