| 摘要 |
<p>A cell developed to solve the problems of a conventional cell that a large short-circuit current flows when the temperature of the cell is raised above 100 °C due to internal short circuit, whereby the temperature of the cell is further raised due to heat buildup and a further increased short-circuit current flows, and that when an aluminum-laminated pack is used as a covering material in order to reduce the weight of the cell and to increase the energy density and when an adhesive is used to maintain the contact of the interface between the electrodes and the separator, the adhesive enters the opening portion of the separator and the opening area of the separator and the void diameter are decreased, deteriorating the load factor characteristics of the cell. Specifically a cell provided with an active material layer (6) containing an active material (8) and an electron conductive material (9) in contact with the active material (8), and an electrolyte-holding layer (3) joined to the active material layer (6). The electron conductive material (9) contains an electrically conductive filler and a resin, and has a resistance increasing with temperature. The active material layer (6) is superposed on the electrolyte-holding layer (3) so as to be joined together through heat treatment.</p> |
