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:
May. 04, 2010
Filed:
May. 19, 2006
Shuji Sugimoto, Osaka, JP;
Fuminori Ozaki, Kanagawa, JP;
Takashi Yokoyama, Hyogo, JP;
Panasonic Corporation, Osaka, JP;
Abstract
A storage battery includes: a bottomed metal case () accommodating an electrolyte and a collector () having a flat plate connected to one side of an electrode assembly () containing a strip-shaped positive electrode plate (), a strip-shaped negative electrode plate (), and a separator (); a sealing plate () sealing upside of the bottomed metal case; and a lead terminal () electrically connecting the sealing plate to the collector, wherein the collector has at least one projection () and the collector and the lead terminal are electrically connected with each other via the projection. This construction eliminates the problem of increased contact resistance between the lead terminal and the collector and realizes a storage battery having high current discharging performance in which the contact resistance is reduced.