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. 22, 2014
Filed:
May. 31, 2012
Masaru Kihara, Takasaki, JP;
Takahiro Endo, Takasaki, JP;
Toshiki Sato, Takasaki, JP;
Akira Saguchi, Takasaki, JP;
Satoshi Wada, Takasaki, JP;
Isao Mugima, Takasaki, JP;
Tomomi Nakamura, Takasaki, JP;
Hideyuki Asanuma, Takasaki, JP;
Masanori Tamura, Takasaki, JP;
Masaru Kihara, Takasaki, JP;
Takahiro Endo, Takasaki, JP;
Toshiki Sato, Takasaki, JP;
Akira Saguchi, Takasaki, JP;
Satoshi Wada, Takasaki, JP;
Isao Mugima, Takasaki, JP;
Tomomi Nakamura, Takasaki, JP;
Hideyuki Asanuma, Takasaki, JP;
Masanori Tamura, Takasaki, JP;
FDK Twicell Co., Ltd., Takasaki-shi, Gunma, JP;
Abstract
A negative electrode for a nickel-hydrogen rechargeable battery is a strip-shaped negative electrode, the negative electrode being formed of a core body and a negative mixture layer covering the core body and containing hydrogen-storage alloy particles, including a main section, both sides of which face the positive electrode with the separator intervening therebetween as viewed in a rolled state where the negative electrode forms the electrode group with the positive electrode and the separator, and an outermost circumferential portion and an innermost circumferential portion that are protruding from ends of the main section in a rolling direction and facing the positive electrode with the separator intervening therebetween only with one side, wherein the hydrogen-storage alloy particles contained in the outermost circumferential portion and the innermost circumferential portion have an average diameter larger than an average diameter of the hydrogen-storage alloy particles contained in the main section.