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. 10, 2017
Filed:
Jun. 08, 2011
Applicants:
OK Sun Kim, Daejeon, KR;
Young-min Kim, Daejeon, KR;
Minah Kang, Daejeon, KR;
Inventors:
Assignee:
LG Chem, Ltd., , KR;
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/62 (2006.01); C08F 212/12 (2006.01); C08F 212/32 (2006.01); C08F 212/36 (2006.01); C08F 220/18 (2006.01); H01M 10/0525 (2010.01); C08F 212/08 (2006.01); C08F 220/06 (2006.01); C08F 220/40 (2006.01); H01M 4/131 (2010.01); H01M 4/133 (2010.01); H01M 4/134 (2010.01); H01M 10/0567 (2010.01); H01M 10/0569 (2010.01); C08F 220/44 (2006.01);
U.S. Cl.
CPC ...
H01M 4/622 (2013.01); C08F 212/12 (2013.01); C08F 212/32 (2013.01); C08F 212/36 (2013.01); C08F 220/18 (2013.01); H01M 4/621 (2013.01); H01M 10/0525 (2013.01); C08F 212/08 (2013.01); C08F 220/06 (2013.01); C08F 220/40 (2013.01); C08F 220/44 (2013.01); C08F 2220/1858 (2013.01); H01M 4/131 (2013.01); H01M 4/133 (2013.01); H01M 4/134 (2013.01); H01M 4/624 (2013.01); H01M 10/0567 (2013.01); H01M 10/0569 (2013.01); Y02E 60/122 (2013.01);
Abstract
Provided is a binder for secondary battery electrodes wherein the content of a gel comprising a polymer particle obtained by copolymerizing three or more types of monomers is 50 to 100% by weight and a swelling index of the binder to an electrolyte is 1.1 to 5.0. The binder fundamentally improves electrode stability due to the gel content defined above and increases ionic conductivity due to the swelling index, thus providing secondary batteries with superior cycle properties.