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:
Aug. 26, 2003

Filed:

Mar. 29, 2001
Applicant:
Inventors:

Nobuhito Okumura, Hyogo, JP;

Satoru Nishimura, Hyogo, JP;

Takuya Tamagawa, Hyogo, JP;

Hisashi Kakiuchi, Hyogo, JP;

Hiroki Katayama, Hyogo, JP;

Hiroyuki Inoue, Hyogo, JP;

Etsuya Fujisaka, Hyogo, JP;

Assignee:

Sanyo Electric Co., Ltd., Moriguchi, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 1/034 ; H01M 1/044 ;
U.S. Cl.
CPC ...
H01M 1/034 ; H01M 1/044 ;
Abstract

A seal type storage battery has a battery case which has a sealing assembly for sealing an opened portion of an outer case, which holds an electricity generating element. The sealing assembly includes a pressure-sensitive conductive rubber member in the battery case. The pressure-sensitive conductive rubber member has a resistance that changes continuously depending on a rise of inner pressure in the battery case. A lead connecting with the, pressure-sensitive conductive rubber extends outside of the battery case, and the lead is capable of outputting a pressure detecting signal to outside.


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