| 摘要 |
PROBLEM TO BE SOLVED: To provide a stacked type nonaqueous electrolyte secondary battery with high characteristics and high manufacturing efficiency of an electrode element. SOLUTION: A negative electrode 3 is formed by interposing a negative current collector 2 between two negative electrode sintered bodies formed by sintering a negative active material. A positive electrode 6 is formed by interposing a positive current collector between two positive electrode molded bodies formed by molding a positive active material. Thereafter, the positive electrode 6 is wrapped with a microporous film 7 except for an electrode taking-out portion, then the positive electrode 6 is sealed by welding. Next, the negative electrode 3 and the positive electrode 6 are stacked alternately, reinforcing plates 9 are arranged on both sides of the stack to interpose the stack between them, and they are wound with an adhesive tape 10 to constitute an electrode element 11. The microporous film 7 serves as a separator 5 which separates the negative electrode 3 and the positive electrode 6. |
