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:
Aug. 23, 2011
Filed:
Mar. 29, 2005
Hiromi Tamakoshi, Ibaraki, JP;
Hisanori Sugahara, Ibaraki, JP;
Yoshihisa Hirose, Ibaraki, JP;
Minoru Ichijo, Ibaraki, JP;
Kiyoshi Sato, Ibaraki, JP;
Hiromi Tamakoshi, Ibaraki, JP;
Hisanori Sugahara, Ibaraki, JP;
Yoshihisa Hirose, Ibaraki, JP;
Minoru Ichijo, Ibaraki, JP;
Kiyoshi Sato, Ibaraki, JP;
Hitachi Maxell Energy, Ltd., Kyoto, JP;
Abstract
A button-type alkaline battery in which an anodecontaining an anode active material and an alkaline electrolyte is disposed in a sealed space formed by sealing a cathode housingwith an anode sealing member, with a gasketbeing interposed between the cathode housingand the anode sealing member. The anode active material includes mercury-free zinc or a mercury-free zinc alloy. The button-type alkaline battery includes a metal layerthat is disposed between and in contact with the anode sealing memberand the anode. The metal layerincludes a base material containing zinc, and at least one metal M selected from the group consisting of indium, bismuth, and tin, with the metal M having segregated in the base material.