| 摘要 |
PROBLEM TO BE SOLVED: To provide a battery having high sealing performance of an electrode lead tapping part, even if it is a laminate film-sealed battery where a power generation element is sealed by a laminate film, and provide its manufacturing method. SOLUTION: This laminate film-sealed battery is provided with a power generation element 4 sealed by a laminate film (thermally fusible resin film 1, metal foil 2), and a positive electrode lead 31 and a negative electrode lead 32 tapped outside from the power generation element via a sealing part. In this case, at least either of the positive electrode lead and the negative electrode lead has a part 71 thermally welded to the thermally fusible resin film 1 of the laminate film between the power generation element and the sealing part. |
