Secondary Battery And Method For Manufacturing Same

Abstract: A secondary battery is provided that can increase the adhesion between a negative electrode and a separator on an electrolyte solution. According to one aspect of the present invention, provided is a secondary battery comprising: a negative electrode; a positive electrode; a separator interposed between the negative electrode and the positive electrode and including a porous substrate and a coating layer disposed on at least one surface of the porous substrate; and an electrolyte solution, wherein the negative electrode comprises a binder polymer including a first repeating unit, the coating layer includes a second repeating unit, and the first repeating unit and the second repeating unit are combined with each other.

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