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:
Jun. 13, 2006

Filed:

Aug. 23, 2002
Applicant:

Yoshinori Naruoka, Kyoto, JP;

Inventor:

Yoshinori Naruoka, Kyoto, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 2/20 (2006.01); H01M 2/26 (2006.01);
U.S. Cl.
CPC ...
Abstract

An electric power generating element of a battery is covered with an electric conductor including a positive conductor member electrically connected to a positive plate, a negative conductor member electrically connected to a negative plate, and a separating member. An electric resistance per unit length of at least one of the positive and negative conductor members is made smaller than that of positive and negative current collectors of the positive and negative plates electrically connected to the positive and negative conductor members, respectively. For example, by making a thickness of the positive conductor member larger than that of the positive current collector, the electric resistance per unit length of the positive conductor member is made smaller than that of the positive current collector. Accordingly, large current occurring during internal short-circuiting can be rapidly distributed between the positive and negative conductor members, and excessive heat generation of a battery is prevented.


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