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:
Jan. 31, 2017
Filed:
Mar. 27, 2013
Applicant:
Tdk Corporation, Tokyo, JP;
Inventors:
Tomohiko Kato, Tokyo, JP;
Atsushi Sano, Tokyo, JP;
Masaki Sobu, Tokyo, JP;
Akinobu Nojima, Tokyo, JP;
Assignee:
TDK CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 4/131 (2010.01); H01M 4/36 (2006.01); H01M 4/525 (2010.01); H01M 4/58 (2010.01); H01M 10/0525 (2010.01);
U.S. Cl.
CPC ...
H01M 4/131 (2013.01); H01M 4/364 (2013.01); H01M 4/525 (2013.01); H01M 4/5825 (2013.01); H01M 10/0525 (2013.01); Y02E 60/122 (2013.01);
Abstract
To provide an active material with high capacity, high initial charge-discharge efficiency, and high average discharge voltage. An active material according to the present invention includes a first active material and a second active material, wherein the ratio (δ) of the second active material (B) to the total amount by mole of the first active material (A) and the second active material (B) satisfies 0.4 mol %≦δ≦18 mol % [where δ=(B/(A+B))×100].