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:
Feb. 05, 2019
Filed:
May. 30, 2013
Applicant:
Jsr Corporation, Minato-ku, JP;
Inventors:
Assignee:
JSR Corporation, Minato-ku, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/62 (2006.01); H01M 4/38 (2006.01); C08G 73/10 (2006.01); C08L 79/08 (2006.01); H01M 4/48 (2010.01); H01M 10/0525 (2010.01);
U.S. Cl.
CPC ...
H01M 4/622 (2013.01); C08G 73/105 (2013.01); C08G 73/1042 (2013.01); C08G 73/1064 (2013.01); C08G 73/1071 (2013.01); C08L 79/08 (2013.01); H01M 4/386 (2013.01); H01M 4/483 (2013.01); H01M 10/0525 (2013.01);
Abstract
A binder composition for an electrode of an electric storage device is provided. The binder composition comprises (A) at least one polymer selected from the group consisting of polyamic acids and imidized polymers thereof having an imidization rate of 50% or less and (B) water. The ratio Ma/Mb of the content of the polymer (A), Ma (parts by mass), to the content of the water (B), Mb (parts by mass), ranges from 500 to 5,000. The binder composition for an electrode of the present invention provides an electric storage device having a large charge/discharge capacity and a low degree of capacity degradation due to repetition of a charge/discharge cycle.