US 12,068,483 B2
Electrode binder composition for rechargeable battery and electrode mixture including the same
Min Ah Kang, Daejeon (KR); Dong Jo Ryu, Daejeon (KR); Seon Hee Han, Daejeon (KR); Jung Sup Han, Daejeon (KR); Jeong Man Son, Daejeon (KR); and Cheolhoon Choi, Daejeon (KR)
Assigned to LG Chem, Ltd., Seoul (KR)
Appl. No. 17/267,202
Filed by LG Chem, Ltd., Seoul (KR)
PCT Filed Oct. 21, 2019, PCT No. PCT/KR2019/013829
§ 371(c)(1), (2) Date Feb. 9, 2021,
PCT Pub. No. WO2020/085739, PCT Pub. Date Apr. 30, 2020.
Claims priority of application No. 10-2018-0126930 (KR), filed on Oct. 23, 2018.
Prior Publication US 2021/0313582 A1, Oct. 7, 2021
Int. Cl. H01M 4/62 (2006.01); C08F 2/26 (2006.01); C08F 236/06 (2006.01); C08F 236/10 (2006.01); C08F 236/12 (2006.01); H01M 4/36 (2006.01); H01M 10/0525 (2010.01); H01M 10/44 (2006.01)
CPC H01M 4/622 (2013.01) [C08F 2/26 (2013.01); C08F 236/06 (2013.01); C08F 236/10 (2013.01); C08F 236/12 (2013.01); H01M 4/366 (2013.01); H01M 10/0525 (2013.01); H01M 10/44 (2013.01)] 14 Claims
 
1. An electrode binder composition for a rechargeable battery comprising emulsion polymer particles comprising
a1) first repeat units derived from conjugated diene monomers; one or more second repeat units selected from the group consisting of b1) repeat units derived from aromatic vinyl monomers, b2) repeat units derived from alkyl (meth)acrylate monomers, b3) repeat units derived from (meth)acryl amide monomers, b4) repeat units derived from nitrile based monomers, and b5) repeat units derived from unsaturated carbonic acid monomers; and
c1) third repeat units derived from monomers represented by the following Chemical Formula 1:

OG Complex Work Unit Chemistry
in the Chemical Formula 1,
R1 is hydrogen, or a C1-10 alkyl group,
X is hydrogen or a methyl group,
Y is —NR2-, R2 is hydrogen, or a C1-10 alkyl group, and
Z is a C1-10 alkyl group,
wherein the third repeat units are included at a ratio of 0.0001 to 0.03, based on the total repeat number of the first repeat units, the second repeat units, and the third repeat units.