The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jan. 01, 2002

Filed:

Nov. 15, 1999
Applicant:
Inventors:

Hiroshi Ueshima, Anjo, JP;

Kenichiro Kami, Takahama, JP;

Tadayoshi Amano, Kariya, JP;

Norikazu Hosokawa, Nagoya, JP;

Ryuichirou Shinkai, Anjo, JP;

Manabu Yamada, Okazaki, JP;

Assignee:

Denso Corporation, Kariya, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 1/000 ; H01M 4/70 ;
U.S. Cl.
CPC ...
H01M 1/000 ; H01M 4/70 ;
Abstract

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.


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