| 摘要 |
PURPOSE:To prevent contact between a positive and a negative electrode charge collector at the time of sealing, by providing thermosetting resin layers at the peripheral parts of said positive and negative electrode charge collector on which a flat voltaic element is arranged, and arranging a thermoadhesive resin between said two thermosetting resin layers and then heating and pressing said peripheral parts. CONSTITUTION:A positive and a negative electrode charge collector 1, 2 hold a voltaic element from its both sides, which is composed of a positive electrode layer 4 and a negative electrode layer 5, between both layers of which a separator 3 involving electrolyte is positioned at the central part of them. Besides, a thermosetting resin layer 7c made of epoxy resin or the like is provided on each facing single face of the peripheral parts of the positive and negative electrode charge collector 1, 2, arranging a termoadhesive resin 7a between said two thermosetting resin layers and then that part is sealed liquid-tight by heating and pressing and thus a flat type cel is formed. Therefore, as the displacement of the thermoadhesive resin 7a can be prevented at the time of heating and pressing, any contact can not occur at the end parts of the positive and negative electrode charge collector 1, 2 and the reliability of the cell can be improved. |
