ELECTRODE BINDER FOR SECONDARY BATTERY USING NONAQUEOUS ELECTROLYTE

摘要

PROBLEM TO BE SOLVED: To improve the adhesion with an electrode current collector and the holding force of an electrode active material without loosing the advantage of fluorine resin used as electrode binder. SOLUTION: This electrode binder is formed of a fluorine-contained ethylenic polymer having a functional group obtained by copolymerizing at least one fluorine-contained ethylenic monomer having a functional group which has any one of a hydroxyl group, a carboxyl group, a carboxylate, carboxyl ester group or an epoxy group in an amount of 0.05-30 mole % to the total quantity of fluorine-contained ethylenic monomers.