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. 08, 2020
Filed:
Dec. 07, 2016
Applicant:
National Institute of Advanced Industrial Science and Technology, Tokyo, JP;
Inventors:
Titus Nyamwaro Masese, Osaka, JP;
Masahiro Shikano, Osaka, JP;
Hikari Sakaebe, Osaka, JP;
Hiroshi Senoh, Osaka, JP;
Hikaru Sano, Osaka, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01B 1/08 (2006.01); H01M 4/00 (2006.01); H01M 4/525 (2010.01); H01M 4/131 (2010.01); H01M 4/505 (2010.01); H01M 10/054 (2010.01); C01G 49/00 (2006.01); H01M 4/485 (2010.01); C01G 3/00 (2006.01); C01G 45/12 (2006.01); H01M 4/62 (2006.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 4/525 (2013.01); C01G 3/00 (2013.01); C01G 3/006 (2013.01); C01G 45/1228 (2013.01); C01G 49/00 (2013.01); C01G 49/0027 (2013.01); H01B 1/08 (2013.01); H01M 4/131 (2013.01); H01M 4/485 (2013.01); H01M 4/505 (2013.01); H01M 4/625 (2013.01); H01M 10/054 (2013.01); C01P 2002/72 (2013.01); C01P 2002/85 (2013.01); C01P 2004/03 (2013.01); C01P 2004/61 (2013.01); C01P 2004/62 (2013.01); C01P 2006/40 (2013.01); H01M 2004/028 (2013.01);
Abstract
By using a potassium ion secondary battery positive electrode active material comprising a potassium compound represented by general formula (1): KMO, wherein M is copper or iron, n is 0.5 to 3.5, and m is 1.5 to 2.5, provided is a potassium ion secondary battery positive electrode active material having higher theoretical discharge capacity and higher effective capacity than a potassium secondary battery using Prussian blue as a positive electrode active material.