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:
Dec. 10, 2013
Filed:
Jan. 23, 2012
Applicants:
Ryuichi Kuzuo, Niihama, JP;
Minoru Shiraoka, Niihama, JP;
Inventors:
Ryuichi Kuzuo, Niihama, JP;
Minoru Shiraoka, Niihama, JP;
Assignee:
Sumitomo Metal Mining Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 4/525 (2010.01); B05D 5/12 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method for producing a coated nickel hydroxide powder suitable as a cathode active material for alkaline secondary battery includes the steps of: dispersing a nickel hydroxide powder in water to prepare a suspension, an aqueous alkali solution to the suspension with stirring to keep a pH of the suspension at 8 or higher as measured at 25° C., and supplying an aqueous cobalt salt solution to the suspension to coat a surface of each particles of the nickel hydroxide powder with cobalt hydroxide crystallized out by neutralization.