CELL AND METHOD OF PRODUCING THE SAME

A conventional battery has a problem that a large short-circuit current is generated with temperature rise due to internal short-circuit, and therefore, the temperature of the battery further increases due to heat and the short-circuit current is increased. Also, there is a problem in safety that the sealed part can be easily opened with temperature rise in case of using the aluminum laminated bag as the outer body for sealing the battery body. The present invention has been carried out in order to solve the above problems. The battery of the present invention is a battery wherein at least one of the positive electrode 1 and the negative electrode 2 comprises the active material layer 6 containing the active material 8 and the electronically conductive material 9 contacted to the active material 8; wherein the battery body 11 is constructed by containing the electrolytic layer 3 between the above positive electrode 1 and negative electrode 2, and the above battery body is sealed with the outer body 14 comprising the aluminum 13 and the thermal fusion resin 12; and wherein the electronically conductive material 9 comprises the electrically conductive filler and the resin so that the resistance increases in accordance with temperature rise.