BINDER FOR SECONDARY BATTERY AND SECONDARY BATTERY INCLUDING THE SAME

A binder for a secondary battery according to embodiments of the present disclosure includes a conductive polymer doped with a dopant. The dopant is a copolymer including a first repeating unit including a sulfonate group and a second repeating unit including at least one of a carboxyl group, a sulfonic acid group, or a phosphonic acid group. According to embodiments of the present disclosure, a secondary battery including the above-described binder may be provided.