PURPOSE: To increase the utilization of an electrode active material and to decrease self-discharge by arranging a solid electrolyte sheet prepared by using a rubber type resin between a positive electrode sheet and a negative electrode sheet.
CONSTITUTION: A solid electrolyte sheet 3 containing a rubber type resin serving as a binder and solid electrolyte powder is arranged between a positive electrode sheet 1 and a negative electrode sheet 2 both comprising fluororesin powder serving as a binder, the solid electrolyte powder, and electrode material powder. The electrode active material is preferably a copper chevrel compound, and the electrolyte is preferably a copper ion conductive solid electrolyte, especially RbCu4I2-xCl3+x(x=0.2-0.6). By arranging the solid electrolyte sheet prepared by using the rubber type resin between the positive and negative electrodes 1, 2 prepared by using fluororesin powder, the utilization of the electrode active material is increased and self-discharge is decreased.
MIFUJI YASUHIKO
MORIWAKI YOSHIO
TONOMURA TADASHI
IWAKI TSUTOMU
