| 摘要 |
PROBLEM TO BE SOLVED: To provide an electric device capable of increasing the number of laminations of an electrode while securing the bonding strength between a terminal plate and connection part, an apparatus and a method for manufacturing the same.SOLUTION: A lithium ion secondary battery 10 seals a power generation element 60 formed by alternately laminating a plurality of negative electrodes 20, separators 30 and positive electrodes 40 with a packaging material 50. The lithium ion secondary battery includes; negative electrode connection parts 23 extending from the plurality of negative electrodes; positive electrode connection parts 43 extending from the plurality of positive electrodes; negative electrode terminal plates 24 electrically connected to the plurality of negative electrode connection parts; and a positive electrode terminal plates 44 electrically connected to the plurality of positive electrode connection parts. The plurality of negative electrode connection parts form a negative electrode bundle 25 by being divided and the plurality of positive electrode connection parts form a positive electrode bundle 45 by being divided. The plurality of negative electrode bundles are joined to the negative electrode terminal plates at positions different from each other in a planar view viewed from a laminated direction and the plurality of positive electrode bundles are joined to the positive electrode terminal plates at positions different from each other in a planar view viewed from the laminated direction. |
