Patent ID: 9318743
Filing Date: 2016-04-19
CPC Classification: H01M,Y02E

Claim Text:
1. An active material for an electrode of a rechargeable battery, comprising: an electrode active material; a binder for an electrode of a lithium rechargeable battery, comprising a copolymer of Chemical Formula 1: wherein L wherein R 1 is OH or —OR 5 , where R 5 is —(CHR 2 CR 3 COOR 4 ) m (CHR 2 CHR 3 COOR 4 ) (m is an integer between 500 and 5,000), R 2 and R 3 are each independently H (hydrogen), a substituted or unsubstituted C1-C10 alkyl group, a substituted or unsubstituted styrene group, or —Si(OR 6 ) 3 , where R 6 is independently H (hydrogen) or a substituted or unsubstituted C1-C20 alkyl group, a C2-C20 alkenyl group, a C2-C20 alkynyl group, a C1-C16 alkyl group, a C6-C20 aryl group, C3-C8 cycloalkyl group, wherein at least one of R 2 and R 3 is not H (hydrogen), R 4 is H (hydrogen), a substituted or unsubstituted C1-C10 linear or branched alkyl group, a substituted or unsubstituted C2-C20 alkenyl group, a C3-C8 cycloalkyl group, a substituted or unsubstituted silane group, or a substituted or unsubstituted C1-C20 alkylsilane group, x is an integer between 1 and 5,000, the grafted acryl group (R 5 ) is 30 to 70 wt % of the molecular mass of Chemical Formula 1, and n is an integer between 500 and 5,000; and a solvent.