SECONDARY BATTERY AND SECONDARY BATTERY MANUFACTURING METHOD

The present disclosure relates to a secondary battery and a method for manufacturing a secondary battery, and more specifically, to a secondary battery that can be repeatedly charged and discharged and a method for manufacturing the same. A secondary battery according to an embodiment of the present disclosure may include an electrode assembly; an exterior material having an internal space accommodating the electrode assembly and first and second exterior material openings allowing the internal space to communicate with the outside; a first cap sealing the first exterior material opening; a second cap sealing the second exterior material opening; and a positive electrode lead and a negative electrode lead connected to the electrode assembly and at least partially exposed to the outside by penetrating the first cap. At this time, the first cap and the second cap may be coupled to the inner surface of the exterior material, and the bonding force between the first cap and the inner surface of the exterior material may be stronger than the bonding force between the second cap and the inner surface of the exterior material.