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:
Sep. 09, 2025
Filed:
Jan. 07, 2022
Applicant:
Tdk Corporation, Tokyo, JP;
Inventors:
Tomohiko Hasegawa, Tokyo, JP;
Kosuke Sato, Tokyo, JP;
Hiroki Karisyuku, Tokyo, JP;
Takashi Mori, Tokyo, JP;
Assignee:
TDK CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/62 (2006.01); C01G 49/00 (2006.01); H01M 4/02 (2006.01); H01M 4/525 (2010.01); H01M 10/0525 (2010.01);
U.S. Cl.
CPC ...
H01M 4/628 (2013.01); C01G 49/0027 (2013.01); H01M 4/525 (2013.01); H01M 10/0525 (2013.01); C01P 2002/82 (2013.01); C01P 2002/89 (2013.01); C01P 2004/84 (2013.01); C01P 2006/40 (2013.01); H01M 2004/028 (2013.01);
Abstract
A lithium iron complex oxide is represented by LiFeO, two peaks with different quadrupole splitting values (QS) analyzed usingFe Mössbauer spectroscopy are shown, one of the two peaks, a peak A, satisfies QS>0, and the other one of the two peaks, a peak B, satisfies QS=0.