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. 10, 1999
Filed:
Jun. 10, 1997
Yuichi Matsumura, Osaka, JP;
Takehito Bogauchi, Osaka, JP;
Masuhiro Ohnishi, Osaka, JP;
Kengo Furukawa, Osaka, JP;
Hiroe Nakagawa, Osaka, JP;
Toshiki Tanaka, Osaka, JP;
Minoru Kuzuhara, Osaka, JP;
Masahiko Oshitani, Osaka, JP;
Yuasa Corporation, Osaka, JP;
Abstract
A hydrogen absorbing electrode using a hydrogen absorbing alloy including at least one or more kinds of transition metals belonging to VIIb-group, VIII-group or Ib-group in periodic table at a specified percentage, characterized in that a surface part of the hydrogen absorbing alloy forms a rich layer including the foregoing transition metals at a percentage larger than the foregoing specified percentage. Since the rich layer exists, an activation at initial stage of charge/discharge is not required. Accordingly, this electrode can be utilized effectively for a nickel-hydride secondary battery.