A secondary battery includes: an electrode assembly having a first electrode tab and a second electrode tab exposed on opposite sides, respectively; a first current collection part electrically coupled to the first electrode tab; a case accommodating the electrode assembly and the first current collection part and having opposite sides opened; a first cap plate sealing a first side opening from among the opposite sides of the case; a first terminal mechanically and electrically coupled to the first current collection part and exposed to the outside of the first cap plate; and a blind rivet coupling the first terminal and the first current collection part.