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. 01, 2008
Filed:
Jan. 03, 2003
Makoto Wakabayashi, Narashino, JP;
Kunihiko Miyamoto, Tokyo, JP;
Tetsuya Yamane, Kawasaki, JP;
Naomi Bando, Kawasaki, JP;
Kiyoshi Ishitsuka, Yokohama, JP;
Ken-ichi Kanno, Yokohama, JP;
Hidekazu Oppata, Tokyo, JP;
Makoto Wakabayashi, Narashino, JP;
Kunihiko Miyamoto, Tokyo, JP;
Tetsuya Yamane, Kawasaki, JP;
Naomi Bando, Kawasaki, JP;
Kiyoshi Ishitsuka, Yokohama, JP;
Ken-ichi Kanno, Yokohama, JP;
Hidekazu Oppata, Tokyo, JP;
Toshiba Battery Co., Ltd., Tokyo, JP;
Abstract
An alkaline secondary battery which is characterized in that it comprises, a positive electrode containing nickel hydroxide having a value of 0.8° or more in the half-width of a peak in the (101) plane thereof as measured by X-ray powder diffraction (2θ) using Cu—Kα ray, and 4.0 to 15% by weight of at least one material selected from the group consisting of zinc and zinc compounds, and an alkali electrolyte, the ratio of which to theoretical capacity of the positive electrode being 0.7 to 2.0 cm/Ah, the weight of the at least one material being one calculated as zinc element and based on the weight of the nickel hydroxide.