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:
Apr. 14, 2026
Filed:
Oct. 20, 2020
Applicant:
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Inventors:
Yasufumi Takahashi, Hyogo Ken, JP;
Takayuki Nakatsutsumi, Osaka Fu, JP;
Yasuyuki Kusumoto, Hyogo Ken, JP;
Atsushi Fukui, Hyogo Ken, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/24 (2006.01); H01M 4/62 (2006.01); H01M 4/02 (2006.01); H01M 10/24 (2006.01);
U.S. Cl.
CPC ...
H01M 4/244 (2013.01); H01M 4/62 (2013.01); H01M 2004/021 (2013.01); H01M 2004/027 (2013.01); H01M 10/24 (2013.01);
Abstract
An alkaline dry battery includes a positive electrode, a negative electrode, a separator disposed between the positive electrode and the negative electrode, and an electrolyte, and the negative electrode includes a negative electrode active material containing zinc, a compound A having a P—O bond, and terephthalic acid. The molar ratio of the compound A to the terephthalic acid is 0.025 or more and 2.5 or less.