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:
Mar. 16, 2004
Filed:
Mar. 26, 2001
Hiroyuki Sakamoto, Neyagawa, JP;
Hidekatsu Izumi, Neyagawa, JP;
Yoichi Izumi, Moriguchi, JP;
Yoshio Moriwaki, Hirakata, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
An alkaline storage battery comprising an improved separator and having a high energy density and an excellent cycle life characteristic is disclosed. The alkaline storage battery in accordance with the present invention comprises a positive electrode including a nickel hydroxide material as an active material, a negative electrode, a separator and an electrolyte, wherein the nickel hydroxide material of the positive electrode contains at least Mn or is disposed with a coating of a cobalt oxide material on its surface and wherein the separator carries particles of a hydrophilic and insulating metal oxide directly attached to its surface. The metal oxide particle is preferably at least one selected from the group consisting of titanium oxide, aluminum oxide, zirconium oxide, potassium titanate, tungsten oxide, and zinc oxide. The most preferable one is anatase type TiO .