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.

Date of Patent:
Jun. 24, 2014

Filed:

Aug. 31, 2012
Applicants:

Dong JO Ryu, Daejeon, KR;

Cha Hun Ku, Daejeon, KR;

Chang Sun Han, Daejeon, KR;

Byoung Yun Kim, Daejeon, KR;

Ju Hyun Kim, Daejeon, KR;

Chang Wan Koo, Daejeon, KR;

Inventors:

Dong Jo Ryu, Daejeon, KR;

Cha Hun Ku, Daejeon, KR;

Chang Sun Han, Daejeon, KR;

Byoung Yun Kim, Daejeon, KR;

Ju Hyun Kim, Daejeon, KR;

Chang Wan Koo, Daejeon, KR;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 4/62 (2006.01);
U.S. Cl.
CPC ...
Abstract

Disclosed is a binder, which comprises polymer particles obtained by polymerization of: (a) 1˜80 parts by weight of a (meth)acrylic acid ester monomer; (b) 1˜20 parts by weight of an unsaturated carboxylic acid monomer; and (c) 0.001˜40 parts by weight of a vinyl monomer, based on 100 parts by weight of the binder polymer, and which allows electrode active material particles capable of lithium intercalation/deintercalation to be fixed and linked among themselves, and between the particles and a collector. An electrode comprising the binder, and a lithium secondary battery having the electrode are also disclosed. Further, a method for evaluating interrelation between wettability of a binder to an electrolyte and quality of a battery comprising the binder is disclosed.


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