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:
Mar. 16, 2021
Filed:
Mar. 08, 2017
Applicant:
Denka Company Limited, Tokyo, JP;
Inventors:
Assignee:
DENKA COMPANY LIMITED, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08L 51/00 (2006.01); H01M 10/0525 (2010.01); H01M 4/133 (2010.01); H01M 4/134 (2010.01); H01M 4/62 (2006.01); C08F 261/04 (2006.01); C08K 7/06 (2006.01); C08K 3/34 (2006.01); C08K 3/04 (2006.01); C09D 151/00 (2006.01); H01M 4/04 (2006.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 4/622 (2013.01); C08F 261/04 (2013.01); C08K 3/04 (2013.01); C08K 3/34 (2013.01); C08K 7/06 (2013.01); C08L 51/003 (2013.01); C09D 151/003 (2013.01); H01M 4/0404 (2013.01); H01M 4/133 (2013.01); H01M 4/134 (2013.01); H01M 10/0525 (2013.01); C08L 2203/20 (2013.01); H01M 2004/027 (2013.01);
Abstract
Provided is a binder composition for negative electrode that has good binding property with an active material and a metal foil and is superior in reduction resistance. A binder composition for negative electrode comprising a graft copolymer obtained by graft copolymerizing, with polyvinyl alcohol, a monomer containing (meth)acrylonitrile as a main component, wherein the polyvinyl alcohol has an average degree of polymerization of 300 to 3000; the polyvinyl alcohol has a saponification degree of 70 to 100 mol %; the graft copolymer has a polyvinyl alcohol amount of 10 to 90 mass %; and the graft copolymer has a poly(meth)acrylonitrile amount of 90 to 10 mass %.