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. 23, 2018
Filed:
May. 14, 2014
Applicant:
Zeon Corporation, Chiyoda-ku, Tokyo, JP;
Inventors:
Assignee:
ZEON CORPORATION, Chiyoda-ku, Tokyo, unknown;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/62 (2006.01); H01M 10/0525 (2010.01); H01M 4/04 (2006.01); H01M 4/13 (2010.01); H01M 4/131 (2010.01); H01M 4/139 (2010.01); C09J 133/08 (2006.01); H01M 4/525 (2010.01); H01M 10/052 (2010.01); H01M 4/505 (2010.01); C08K 3/22 (2006.01);
U.S. Cl.
CPC ...
H01M 4/622 (2013.01); C09J 133/08 (2013.01); H01M 4/0404 (2013.01); H01M 4/13 (2013.01); H01M 4/131 (2013.01); H01M 4/139 (2013.01); H01M 4/525 (2013.01); H01M 10/0525 (2013.01); C08K 3/22 (2013.01); C08K 2003/2203 (2013.01); H01M 4/505 (2013.01); H01M 10/052 (2013.01);
Abstract
The disclosed binder composition for the positive electrode of a lithium ion secondary battery includes a binder and an organic dispersion medium, a weight-average molecular weight of the binder being from 100,000 to 2,000,000, and the binder containing 10% to 35% by mass of an ethylenically unsaturated monomer unit containing an acid group, and includes 0.6 to 1.5 equivalents of lithium with respect to the acid group. The disclosed slurry composition for the positive electrode of a lithium ion secondary battery includes this binder composition, a positive electrode active material, and a conductive material.