| 摘要 |
PROBLEM TO BE SOLVED: To provide an electric storage device composed by surely connecting one or more collector lead parts to terminals for external connection by solid-state welding instead of conventional welding; and to provide its manufacturing method. SOLUTION: This manufacturing method is used for manufacturing this electric storage device provided with: an electrode body unit having a core part having a negative electrode collector and a positive electrode collector and one or more negative electrode collector lead parts and positive electrode collector lead parts extended to the outside from the core part; a negative electrode terminal connected to the negative electrode collector lead part(s); and a positive electrode terminal connected to the positive electrode collector lead part(s). The manufacturing method includes, in at least one of the positive and negative electrodes, steps of: stacking the one or more collector lead parts 14 and the terminal part 12; compressing at least a part of a layered product 11 thereof in the stacking direction; and connecting, by solid-state welding, the one or more collector lead parts and the terminal in the compressed parts by heating the compressed parts 14a and 12a. COPYRIGHT: (C)2007,JPO&INPIT |
