| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for manufacturing a battery wrapped with laminated films, capable of suppressing increase of the thickness of the battery and preventing deterioration of battery characteristics and life characteristics, by preventing wrinkles in a separator from being produced in an electrolyte injecting process. SOLUTION: A battery precursor 2a formed by laminating a positive electrode plate and a negative electrode plate through the separator is wrapped with two films 5, 6 so as to sandwich it, and the peripheral rim parts of the films 5, 6 are thermally fused so that one side is opened. An opening part 7 which is not thermally fused is turned upward, and electrolyte is injected in a storage part 8 from the opening part 8 so that the electrolyte infiltrates into the battery precursor 2a only from its lower end side. When injection of the electrolyte is finished, the opening part 7 is sealed by thermal fusion, and thereby this battery wrapped with the film is completed. COPYRIGHT: (C)2005,JPO&NCIPI |
