Patent ID: 7504179
Filing Date: 2009-03-17
Classification: H01M,Y02E

Abstract:
1. A secondary cell module, comprising: more than one sheet-shaped secondary cell, each sheet-shaped secondary cell comprising a sheet-shaped internal electrode couple, electrolytic solution, a flexible outer wrapper containing air-tightly the internal electrode couple and electrolytic solution therein, a positive electrode terminal and negative electrode terminal; and a metal bus-bar which connects the positive electrode terminal and/or negative electrode terminal of at least one pair of sheet-shaped secondary cells in series and/or in parallel with each other so as to form a combination cell, within each of the flexible outer wrapper of each said at least one pair of sheet-shaped secondary cells is in the shape of an envelope and is formed of a laminated film having three layer structure comprising an inner layer made of thermoplastic resin with an electrolytic solution resistance and a heat sealing capacity, a middle layer made of metal foil with a flexibility and strength and an outer layer made of an insulating resin with an electric insulation property, the positive electrode terminal and the negative electrode terminal forming the combination cell and each bus-bar which connects the positive electrode terminal and/or negative electrode terminal are both formed in the form of sheet, the flexible outer wrappers of the at least one pair of sheet-shaped secondary cells have sealing parts only around the periphery thereof between said adjacent inner layers made of thermoplastic resin, and the sealing parts of the flexible outer wrappers of said at least one pair of secondary cells overlap each other in the vertical direction and said sheet-shaped secondary cells are adjacently positioned in the horizontal direction with respect to each other.