| 摘要 |
PROBLEM TO BE SOLVED: To provide a laminated battery in which connection reliability with a lead terminal is sufficiently secured and yet dead space is reduced, and its manufacturing method. SOLUTION: The lithium ion secondary battery 1 houses cells 2 formed by laminating a plurality of generating units 20 having electrodes and a separator arranged between these electrodes in a container 4. The current collector is constructed by containing a current collector main body part contacting an active material layer and power take-out parts 50, 80 which do not contact the active material layer. The power take-out parts 50, 80 are made of a mesh portion adjoining the current collector main body part and a foil portion located on the opposite side of the current collector main body part interposing the mesh portion. Since bending process is applied to the mesh portion, a plurality of foil portions are bundled and jointed parts 51a, 81a are formed, thereby welding the lead terminals 12, 13 to the jointed part 51a, 81a. COPYRIGHT: (C)2005,JPO&NCIPI |
