logo

For the Inventor, By the Inventor

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.:

US 11101463 B1

PDFFull Text
Date of Patent:
Aug. 24, 2021

Filed:

Feb. 16, 2017

Copolymer for binders for nonaqueous battery electrodes, slurry for nonaqueous battery electrodes, nonaqueous battery electrode, and nonaqueous battery

Applicant:

Showa Denko K.k., Tokyo, JP;

Inventors:

Mitsuru Hanasaki, Tokyo, JP;

Yasuhiro Nakagawa, Tokyo, JP;

Assignee:

SHOWA DENKO K.K., Tokyo, JP;

Attorney:

Sughrue Mion, PLLC

Primary Examiner:

Raymond Alejandro

Int. Cl.
CPC ...
H01M 4/13 (2010.01); H01M 4/62 (2006.01); C08F 220/06 (2006.01); C08F 226/02 (2006.01); H01M 4/04 (2006.01); H01M 4/139 (2010.01); H01M 4/133 (2010.01); H01M 4/587 (2010.01); H01M 10/0525 (2010.01); H01M 4/505 (2010.01); H01M 4/525 (2010.01); H01M 4/583 (2010.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 4/622 (2013.01); C08F 220/06 (2013.01); C08F 226/02 (2013.01); H01M 4/0404 (2013.01); H01M 4/13 (2013.01); H01M 4/133 (2013.01); H01M 4/139 (2013.01); H01M 4/587 (2013.01); H01M 4/62 (2013.01); H01M 10/0525 (2013.01); C08F 2800/20 (2013.01); H01M 4/505 (2013.01); H01M 4/525 (2013.01); H01M 4/583 (2013.01); H01M 2004/027 (2013.01); H01M 2300/0017 (2013.01);
Abstract

A copolymer for binders, which is capable of reducing the internal resistance of a battery, while ensuring sufficient binding properties between active materials and between an active material and a collector in a nonaqueous battery electrode; a composition for binders; a slurry for nonaqueous battery electrodes; a nonaqueous battery electrode; and a nonaqueous battery. This copolymer for binders is a copolymer for binders (P) of a monomer mixture (M) that contains at least a monomer (A) represented by general formula (1) and a (meth)acrylate salt monomer (B); and an amount of structure derived from the monomer (A) based on the copolymer for binders (P) is set to 0.5 to 20.0% by mass. (In the formula, each of Rand Rindependently represents a hydrogen atom or an alkyl group having 1 to 5 carbon atoms.)

Find Patent Forward Citations

Loading…