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. 04, 1989
Filed:
May. 26, 1988
Masahiko Oshitani, Takatsuki, JP;
Hiroshi Yufu, Takatsuki, JP;
Yuasa Battery Company Limited, Takatsuki, JP;
Abstract
A nickel electrode for an alkaline battery includes a porous alkali-proof metal fiber substrate as a current collector and an active material principally formed of a nickel hydroxide powder is precluded from formation of the higher oxide, .gamma.-NiOOH, is improved in the ratio of utilization of the active material, and is provided with a high energy density and a long service life when the nickel hydroxide powder employed therein possesses a pore radius in the range of 15 to 30 .ANG., a total pore volume of not more than 0.05 ml/g, and a specific surface area in the range of 15 to 30 m.sup.2 /g. An alkaline battery is also provided by the invention which uses the nickel electrode described above.