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:
Feb. 05, 2019
Filed:
Aug. 11, 2015
Applicant:
Nippon Electric Glass Co., Ltd., Shiga, JP;
Inventors:
Assignee:
NIPPON ELECTRIC GLASS CO., LTD., Shiga, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01B 25/45 (2006.01); H01M 4/58 (2010.01); H01M 10/054 (2010.01); H01M 4/62 (2006.01);
U.S. Cl.
CPC ...
C01B 25/45 (2013.01); H01M 4/58 (2013.01); H01M 4/5825 (2013.01); H01M 4/62 (2013.01); H01M 10/054 (2013.01);
Abstract
Provided are a positive electrode active material for a sodium ion secondary battery excellent in quick charge-discharge characteristics by preventing fusion between particles of powder during firing, and a method of producing the same. A positive electrode active material for a sodium ion secondary battery of the present invention includes inorganic powder that contains at least one kind of transition metal element selected from the group consisting of Cr, Fe, Mn, Co, and Ni, Na, P, and O, and has a BET specific surface area of from 3 m/g to 50 m/g.