| 摘要 |
PROBLEM TO BE SOLVED: To provide an electrochemical device in which a sealing state of the fused parts of an exterior body corresponding to lead terminals becomes uniform, and sealing failure can be reduced.SOLUTION: An electrochemical device includes a tab drawn from a current collector, at least two electrode lamination cells in which positive electrode sheets and negative electrode sheets having positive electrode or negative electrode layers are laminated on the surface of the current collector via a separator, an insulation film, lead terminals for external connection, electrolyte, and an exterior body. The electrode lamination cells are arranged one by one in spaces partitioned by the insulation film in the exterior body. The tab is connected to the lead terminals in the exterior body. The electrochemical device is sealed with the exterior body. The lead terminals are led out from the side part of the exterior body so as not to overlap with each other and serially connected to each other outside the exterior body. |
