Denso Corporation

Tadayoshi Amano

Manabu Yamada

Hiroshi Ueshima

Ryuichirou Shinkai

Norikazu Hosokawa

Kenichiro Kami

There are provided coiled electrode batteries with high yields, while short-circuiting in the batteries is prevented. A coiled electrode battery according to the invention has coiled electrodes consisting of positive and negative poles and two separators lying between them. In the coiled electrodes, insulating layers made of insulating resin are formed on both sides of the proximal sections of the protrusions of the positive and negative poles . Thus, even if the non-protruding sections of the positive and negative electrodes become exposed due to winding misalignment of the separators in the lengthwise direction, the presence of the insulating layers prevents short-circuits between the proximal sections of the protrusions of the positive and negative electrodes . As a result, yields are increased as short-circuits are avoided inside the battery.

Growing community of inventors

Kariya, Japan

Tadayoshi Amano