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:
May. 03, 2011
Filed:
May. 17, 2006
Byoung Yun Kim, Daejeon, KR;
Dong JO Ryu, Daejeon, KR;
Ju Hyun Kim, Daejeon, KR;
Chang Sun Han, Daejeon, KR;
Eun Young Goh, Goyang-si, KR;
Hyang Mok Lee, Seoul, KR;
Byoung Yun Kim, Daejeon, KR;
Dong Jo Ryu, Daejeon, KR;
Ju Hyun Kim, Daejeon, KR;
Chang Sun Han, Daejeon, KR;
Eun Young Goh, Goyang-si, KR;
Hyang Mok Lee, Seoul, KR;
LG Chem, Ltd., , KR;
Abstract
Disclosed is an electrochemical device, which comprises: (A) a binder comprising polymer particles obtained from the polymerization of: (a) 20-70 parts by weight of a (meth)acrylic acid ester monomer; (b) 20-60 parts by weight of a vinyl monomer; and (c) 0.01-30 parts by weight of an unsaturated carboxylic acid monomer, based on 100 parts by weight of a binder polymer; and (B) electrochemical cells stacked multiply by using the binder, wherein the binder allows electrode active material particles in an electrode to be fixed and interconnected among themselves and between the electrode active material and a collector, and the electrode and a separator that is in contact with the electrode are bonded to each other by way of hot fusion. The binder is also disclosed. The binder has excellent adhesion and thermal bonding characteristics, and thus is useful for an electrochemical device comprising multiply stacked electrochemical cells, and can improve the overall quality of a battery.