Patent ID: 7833656
Filing Date: 2010-11-16
Classification: H01M,Y02E,Y02P

Abstract:
1. An electrochemical device comprising an electrode plate assembly, said electrode plate assembly comprising, (a) at least one first electrode, (b) at least one second electrode, and (c) a separator interposed between the first electrode and the second electrode, said first electrode comprising a first current collector sheet and at least one first electrode mixture layer carried thereon, said second electrode comprising a second current collector sheet and at least one second electrode mixture layer carried thereon, wherein said electrochemical device further comprises a first terminal electrically connected to said first current collector sheet and a second terminal electrically connected to said second current collector sheet, said electrode plate assembly has a first side face on which said first terminal is provided and a second side face on which said second terminal is provided, at least one of said first current collector sheet and said second current collector sheet has a conductive area and an insulating area, when said first current collector sheet has a conductive area and an insulating area, the conductive area of said first current collector sheet is connected to said first terminal on said first side face, and the insulating area of said first current collector sheet is positioned on said second side face, when said second current collector sheet has a conductive area and an insulating area, the conductive area of said second current collector sheet is connected to said second terminal on said second side face, and the insulating area of said second current collector sheet is positioned on said first side face, said first side face has a first insulating material portion for insulating said first terminal from said second electrode, and said second side face has a second insulating material portion for insulating said second terminal from said first electrode, said first insulating material portion is in contact with said first side face of said second electrode mixture layer, and said second insulating material portion is in contact with said second side face of said first electrode mixture layer, and said first insulating material portion and said second insulating material portion include at least one selected from the group consisting of resin, glass compositions, and ceramics.