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.
Patent No.:
Date of Patent:
Jul. 29, 2003
Filed:
Mar. 07, 2001
Takashi Oda, Kato-gun, JP;
Hideki Okajima, Nishinomiya, JP;
Yukichi Uesugi, Tuna-gun, JP;
Hitoshi Tanaka, Mihara-gun, JP;
Yoshinobu Okumura, Sumoto, JP;
Sanyo Electric Co., Ltd., Osaka, JP;
Abstract
A battery module of the present invention comprises an annular connecting member having an aperture at a position corresponding to a cap provided on a sealing plate and between the sealing member of one cell B and a bottom of a can of the other cell A. The annular connecting member comprises an annular base portion having its outer diameter smaller than an inner diameter of the opening portion of the can , a convex portion with bottom protruding upward or downward alternately from the annular base portion , and a projection projecting from the bottom of the convex portion . Thereby, the connecting portion between the cell A and the cell B has a collecting path of a length between both projections , namely, a length between the sealing plate of the cell B and the bottom of the can of the cell A, whereby the voltage drop across the connecting portion decreases, resulting in a battery module having high operation voltage.