SECONDARY BATTERY, METHOD FOR MANUFACTURING THE SAME AND BATTERY PACK

The present invention relates to a secondary battery including an electrode assembly and a pouch configured to accommodate the electrode assembly, wherein the pouch includes: two first covers provided on both surfaces of the electrode assembly in a thickness direction, respectively, two second covers provided on both surfaces of the electrode assembly in a full-width direction, wherein edge surfaces of the first cover and the second cover, which face each other, are sealed by a first sealing part, end surfaces of the first cover and the second cover, which are directed in the same direction, are sealed by a second sealing part. Here, the two second covers are in close contact with on both the surfaces of the electrode assembly in the full-width direction.