US 11,962,010 B2
Binder aqueous solution for lithium-ion battery electrode, slurry for lithium-ion battery electrode, lithium-ion battery electrode, and lithium-ion battery
Katsuya Okubo, Osaka (JP); Hideki Goda, Osaka (JP); Naoki Sasagawa, Osaka (JP); and Satoru Aoyama, Osaka (JP)
Assigned to ARAKAWA CHEMICAL INDUSTRIES, LTD., Osaka (JP)
Filed by ARAKAWA CHEMICAL INDUSTRIES, LTD., Osaka (JP)
Filed on Sep. 2, 2020, as Appl. No. 17/009,780.
Claims priority of application No. 2019-161654 (JP), filed on Sep. 5, 2019.
Prior Publication US 2021/0075019 A1, Mar. 11, 2021
Int. Cl. H01M 4/62 (2006.01); H01M 4/13 (2010.01); H01M 4/88 (2006.01); H01M 10/05 (2010.01); H01M 10/0525 (2010.01)
CPC H01M 4/622 (2013.01) [H01M 4/13 (2013.01); H01M 4/8828 (2013.01); H01M 10/0525 (2013.01)] 6 Claims
 
1. A binder aqueous solution for a lithium-ion battery electrode, comprising:
a water-soluble polymer (A), the water-soluble polymer (A) being a polymer of a monomer group containing, with respect to 100 mol % of the monomer group, 10 mol % to 60 mol % of a hydroxyl group-containing vinyl ether (a) and 40 mol % to 90 mol % of (Meth)acrylamide Group-containing Compound (b),
the hydroxyl group-containing vinyl ether is represented by general formula (1):
H2C=CH—R—OH (1),
wherein in the general formula (1), R represents unsubstituted oxyalkylene group having 1 to 5 carbon atoms, or
general formula (2),

OG Complex Work Unit Chemistry
wherein in the general formula (2), q is an integer of 1 to 3, and n is an integer of 1 or more.