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. 28, 2020
Filed:
Mar. 22, 2018
Applicant:
Sumitomo Osaka Cement Co., Ltd., Tokyo, JP;
Inventors:
Satoru Oshitari, Funabashi, JP;
Ryuuta Yamaya, Narashino, JP;
Assignee:
SUMITOMO OSAKA CLEMENT CO., LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/136 (2010.01); H01M 4/36 (2006.01); C01B 25/45 (2006.01); H01M 4/58 (2010.01); H01M 10/0525 (2010.01);
U.S. Cl.
CPC ...
H01M 4/136 (2013.01); C01B 25/45 (2013.01); H01M 4/366 (2013.01); H01M 4/5825 (2013.01); H01M 10/0525 (2013.01); C01P 2006/19 (2013.01);
Abstract
An electrode material for a lithium ion battery including an active material represented by LiMPO(M is at least one selected from the group consisting of Fe, Mn, Co, Ni, Zn, Al, Ga, Mg, and Ca), in which an oil absorption amount for which diethyl carbonate is used (DEC oil absorption amount) is 50 cc/100 g or more and 80 cc/100 g or less, and a ratio (DEC/NMP) of the DEC oil absorption amount to an oil absorption amount for which N-methyl-2-pyrrolidinone is used (NMP oil absorption amount) is 1.3 or more and 1.8 or less.