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. 05, 2019
Filed:
Aug. 24, 2012
Applicant:
Tomokazu Sasaki, Tokyo, JP;
Inventor:
Tomokazu Sasaki, Tokyo, JP;
Assignee:
ZEON CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 220/06 (2006.01); H01M 4/62 (2006.01); C08F 220/18 (2006.01); C08L 25/10 (2006.01); H01M 4/134 (2010.01); H01M 4/1395 (2010.01); H01M 4/136 (2010.01); H01M 4/1397 (2010.01);
U.S. Cl.
CPC ...
H01M 4/623 (2013.01); C08F 220/18 (2013.01); C08L 25/10 (2013.01); H01M 4/622 (2013.01); H01M 4/134 (2013.01); H01M 4/136 (2013.01); H01M 4/1395 (2013.01); H01M 4/1397 (2013.01);
Abstract
A binder composition for a negative electrode of a secondary battery, including a particulate binder, and a water-soluble polymer containing an acidic functional group, wherein the water-soluble polymer has an ion conductivity of 1×10to 1×10S/cm; and a swelling degree of the water-soluble polymer to a liquid with a solubility parameter of 8 to 13 (cal/cm)is 1.0 to 2.0 times a swelling degree of the particulate binder measured under the same conditions; and use thereof.