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:
Jun. 07, 2022
Filed:
Mar. 27, 2020
Applicant:
Fdk Corporation, Tokyo, JP;
Inventors:
Assignee:
FDK CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/52 (2010.01); C22C 1/04 (2006.01); C22C 19/00 (2006.01); H01M 4/24 (2006.01); H01M 4/32 (2006.01); H01M 4/36 (2006.01); H01M 4/38 (2006.01); H01M 4/62 (2006.01); H01M 10/30 (2006.01); H01M 10/34 (2006.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 4/52 (2013.01); C22C 1/0433 (2013.01); C22C 19/00 (2013.01); H01M 4/242 (2013.01); H01M 4/32 (2013.01); H01M 4/364 (2013.01); H01M 4/38 (2013.01); H01M 4/621 (2013.01); H01M 4/625 (2013.01); H01M 10/30 (2013.01); H01M 10/345 (2013.01); H01M 2004/021 (2013.01); H01M 2004/027 (2013.01);
Abstract
A negative electrode used in a nickel metal hydride secondary battery includes a negative electrode core body and a negative electrode mixture carried on the negative electrode core body. The negative electrode mixture includes hydrogen storage alloy powder which is an aggregate of hydrogen storage alloy particles, a binder, and a thickener. The hydrogen storage alloy particles have a volume mean particle size of 40 μm or less and a concentration of chlorine of not less than 180 ppm to not more than 780 ppm.