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:
Feb. 07, 2012
Filed:
Sep. 29, 2010
Takuya Nakashima, Osaka, JP;
Shunsuke Yasui, Osaka, JP;
Takuya Nakashima, Osaka, JP;
Shunsuke Yasui, Osaka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
Provided is a battery pack in which the production of heat due to passage of current in a connector for connecting secondary batteries in parallel is made uniform to increase service life and reduce maintenance costs. A positive terminal connectorcomprises a connectorwith through-holes. The connectoris divided into two regions: a distant region which is distant from the portion connected to an external terminal; and a close region which is close to the connection portion and has the same area as the distant region. The connectoris formed so that the open area ratio of the distant region is greater than that of the close region. Thus, the electrical resistance of the close region can be made smaller than that of the distant region. Therefore, the production of heat due to passage of current in the close region can be suppressed.