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. 22, 2005
Filed:
Dec. 29, 2000
Paste type positive electrode for alkaline storage battery, and nickel-metal hydride storage battery
Futoshi Tanigawa, Ikoma, JP;
Akihiro Maeda, Fujisawa, JP;
Yasushi Nakamura, Fujisawa, JP;
Yoichi Izumi, Habikino, JP;
Yoshitaka Dansui, Fujisawa, JP;
Kohji Yuasa, Chigasaki, JP;
Futoshi Tanigawa, Ikoma, JP;
Akihiro Maeda, Fujisawa, JP;
Yasushi Nakamura, Fujisawa, JP;
Yoichi Izumi, Habikino, JP;
Yoshitaka Dansui, Fujisawa, JP;
Kohji Yuasa, Chigasaki, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
The paste type positive electrode of the present invention contains a first active material and a second active material. The first active material comprises X parts by weight of particulate nickel hydroxide with aX/100 parts by weight of cobalt oxyhydroxide carried thereon. The second active material comprises Y parts by weight of particulate nickel oxyhydroxide, of which an oxidation number of nickel is α, with bY/100 parts by weight of cobalt oxyhydroxide carried thereon. Here, all the following relations are satisfied: (1) 2.5≦α<3.0, (2) 0.01≦(aX/100+bY/100)/(X+Y)≦0.20, (3) 0<b≦a≦10 or 0=b<a≦10, and (4) 2.1≦(2X+αY)/(X+Y)<2.2.