| 摘要 |
PURPOSE:To improve the charge/discharge cycle life by providing a positive electrode provided with a conducting layer containing conducting ceramic and a binder on the surface of a metal core body and coated with a positive electrode mix containing spinel type LiMn2O4. CONSTITUTION:A conducting layer 3 containing conducting ceramic and a binder is provided on both faces of a metal core body 2, and a positive electrode mix 4 containing spinel type LiMn2O4 is coated on it to form a positive electrode 1. The conductivity between the metal core body 2 and the positive electrode mix 4 can be improved by the conducting ceramic in the conducting layer 3, no local battery is formed between the conducting ceramic and the positive electrode mix 4, and no gas is generated by the local battery reaction. The adhesive property between the metal core body 2 and the positive electrode mix 4 can be improved by the binder in the conducting layer 3. The charge/ discharge cycle life can be improved. |
