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. 18, 2010
Filed:
Nov. 04, 2004
Fumio Kato, Kadoma, JP;
Katsuya Sawada, Hirakata, JP;
Hidekatsu Izumi, Katano, JP;
Yasuo Mukai, Moriguchi, JP;
Shigeto Noya, Neyagawa, JP;
Fumio Kato, Kadoma, JP;
Katsuya Sawada, Hirakata, JP;
Hidekatsu Izumi, Katano, JP;
Yasuo Mukai, Moriguchi, JP;
Shigeto Noya, Neyagawa, JP;
Panasonic Corporation, Osaka, JP;
Abstract
There is disclosed an alkaline battery including a positive electrode material mixture, a negative electrode, a separator interposed between the positive electrode material mixture and the negative electrode, and an alkaline electrolyte, wherein the positive electrode material mixture includes a first active material comprising nickel oxyhydroxide and a second active material comprising manganese dioxide, the nickel oxyhydroxide includes a γ-type crystal structure, the content of nickel in the nickel oxyhydroxide is not less than 45 wt %, and the average particle diameter on a volume basis of the nickel oxyhydroxide measured with a laser diffraction particle size distribution analyzer is 3 to 20 μm.