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. 02, 2013
Filed:
Dec. 28, 2005
Takashi Okawa, Kanagawa, JP;
Tsuneyoshi Murakami, Kanagawa, JP;
Kenichi Aoki, Osaka, JP;
Hiroyuki Usui, Kanagawa, JP;
Kimihiro Imamura, Kanagawa, JP;
Takashi Okawa, Kanagawa, JP;
Tsuneyoshi Murakami, Kanagawa, JP;
Kenichi Aoki, Osaka, JP;
Hiroyuki Usui, Kanagawa, JP;
Kimihiro Imamura, Kanagawa, JP;
Panasonic Corporation, Osaka, JP;
Abstract
A nickel hydrogen storage battery is provided which includes an electrode assembly formed by winding spirally a strip-like negative electrode () and a strip-like positive electrode with a separator interposed therebetween, the strip-like negative electrode () having a mixture layer containing a hydrogen storage alloy disposed on a core material. The electrode assembly is contained in a bottomed cylindrical container such that the negative electrode () forms the outermost peripheral portion. A portion corresponding to an outermost peripheral portion () of the negative electrode is a thin portion, and the thin portion is bent in advance in the winding direction of the electrode assembly to form an arc shape. In this manner, when the spirally wound electrode assembly is configured, the outermost peripheral portion of the negative electrode is prevented from peeling from the electrode assembly, and thus the insertability into the bottomed cylindrical container is improved.