| 摘要 |
PROBLEM TO BE SOLVED: To prevent the peeling off of an active material from a current collector and provide a nonaqueous electrolytic secondary battery with an excellent cycle characteristic by using polyvinylidene fluoride and an organic compound having an imide group as a binder of a positive electrode. SOLUTION: A positive electrode and a negative electrode are spirally wound through a separator, then housed in a case 1. The positive electrode uses LiNi0.9 Co0.1 O2 as an active material. 4 pts.wt. acetylene black is mixed to 10 pts.wt. positive active material, N-methyl pyrrolidone solution in which 4 pts.wt. polyvinylidene fluoride and 0.1 pts.wt. organic compound are dissolved is added to the mixture, they are kneaded to a pasty state, the paste obtained is applied to the both surfaces of an aluminum foil, then dried to obtain the positive plate. |
