Hybrid battery binder
AssigneeE. I. Du Pont de Nemours and Company
InventorCHONGSOO LIM
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Abstract
Disclosed is a composition comprising an ethylene copolymer and a polyetherimide, polyamideimide, polycarbonate, polyetheretherketone, polysulfone or polyethersulfone wherein the ethylene copolymer comprises or is produced from repeat units derived from ethylene and a comonomer selected from the group consisting of an α,β-unsaturated monocarboxylic acid or its derivative, an α,β-unsaturated dicarboxylic acid or its derivative, an epoxide-containing monomer, a vinyl ester, or combinations of two or more thereof; and the composition can further comprise a curing agent to crosslink the ethylene copolymer. The composition is useful as a binder for a lithium ion battery.
Claims24
A blend composition comprising
- (a) an ethylene copolymer or combination thereof comprising copolymerized units of ethylene and a comonomer selected from the group consisting of an α,β-unsaturated monocarboxylic acid or its derivative, an α,β-unsaturated dicarboxylic acid or its derivative, an epoxide-containing monomer, a vinyl ester, or combinations of two or more thereof wherein the polymer contains copolymerized units of 2 to 80 weight % of the comonomer;
- and
- (b) a polymeric material selected from the group consisting of polyetherimide, polyamideimide, polycarbonate, polyetheretherketone, polysulfone and polyethersulfone.
Dependencies are inferred from the claim text.