A secondary battery comprises an electrode assembly including a first electrode, a second electrode, a separator for insulating the first electrode and the second electrode from each other, a first electrode tab extending from the first electrode, a second electrode tab extending from the second electrode, and a pouch including a body and a cover. The body includes a receiving part for accommodating the electrode assembly, and a body sealing part extending from the receiving part. The cover includes a covering part corresponding to the receiving part of the body, and a cover sealing part corresponding to the body sealing part. At least two insulation layers and a conductive are provided at the body and the cover, respectively. The first electrode tab and the second electrode tab are electrically connected to the conductive layers of the body and the cover, respectively.