	US 12,237,513 B2
	Electrode binder composition, electrode coating composition, power storage device electrode, and power storage device
Ayano Sofue, Kyoto (JP); Toshiya Watanabe, Kyoto (JP); and Yasuteru Saito, Kyoto (JP)
Assigned to DKS CO. LTD., Kyoto (JP)
Appl. No. 17/604,156
Filed by DKS Co. Ltd., Kyoto (JP)
PCT Filed Mar. 5, 2020, PCT No. PCT/JP2020/009403 § 371(c)(1), (2) Date Oct. 15, 2021, PCT Pub. No. WO2020/217731, PCT Pub. Date Oct. 29, 2020.
Claims priority of application No. 2019-080600 (JP), filed on Apr. 22, 2019.
Prior Publication US 2022/0200003 A1, Jun. 23, 2022
Int. Cl. H01M 4/62 (2006.01); H01G 11/06 (2013.01); H01G 11/36 (2013.01); H01G 11/38 (2013.01)

CPC H01M 4/623 (2013.01) [H01G 11/06 (2013.01); H01G 11/36 (2013.01); H01G 11/38 (2013.01)]

9 Claims

1. An electrode binder composition comprising (A) one or more polymer components selected from the group consisting of fluoropolymers, butadiene polymers, and thermoplastic elastomers, (B) a fibrous nanocarbon material having an average fiber diameter of 0.5 nm or more and 20 nm or less and an average fiber length of 0.5 μm or more and 1 mm or less, (C) a cellulose material, (D) a nanocellulose fiber, and (E) water, wherein a mass ratio of the component (A) to the component (B) satisfies (A)/(B)=60/40 to 98/2.