	US 12,463,220 B2
	Electrode binder slurry composition for lithium ion electrical storage devices
Stuart D. Hellring, Pittsburgh, PA (US); Debra L. Singer, Wexford, PA (US); Matthew E. Stewart, Pittsburgh, PA (US); and Jacob W. Mohin, Gibsonia, PA (US)
Assigned to PPG Industries Ohio, Inc., Cleveland, OH (US)
Filed by PPG Industries Ohio, Inc., Cleveland, OH (US)
Filed on Oct. 2, 2023, as Appl. No. 18/479,154.
Application 18/479,154 is a continuation of application No. 16/629,228, granted, now 11,777,096, previously published as PCT/US2018/041046, filed on Jul. 6, 2018.
Claims priority of provisional application 62/529,497, filed on Jul. 7, 2017.
Prior Publication US 2024/0030447 A1, Jan. 25, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. H01M 4/62 (2006.01); H01G 11/30 (2013.01); H01G 11/62 (2013.01); H01G 11/68 (2013.01); H01G 11/70 (2013.01)

CPC H01M 4/623 (2013.01) [H01G 11/30 (2013.01); H01G 11/62 (2013.01); H01G 11/68 (2013.01); H01G 11/70 (2013.01); H01M 4/625 (2013.01)]

19 Claims

1. A slurry composition comprising:

(a) an electrochemically active material;

(b) a binder comprising a polymer comprising a fluoropolymer dispersed in an organic medium comprising a primary solvent and a co-solvent, wherein the primary solvent comprises butyl pyrrolidone, a trialkylphosphate, 3-methoxy-N,N-dimethylpropanamide, 1,2,3-triacetoxypropane, or combinations thereof, and the co-solvent comprises ethyl acetoacetate, gamma-butyrolactone, propylene glycol methyl ether, dipropylene glycol methyl ether, propylene glycol monopropyl ether, diethylene glycol monobutyl ether, ethylene glycol monohexyl ether, or combinations thereof; and