Apparatus for sealing battery case and secondary battery manufactured using the same

An apparatus for sealing a battery case, the apparatus comprises:

• a first sealing tool configured to seal a side of a pouch-type secondary battery,
• wherein the first sealing tool comprises:
• a body;
• a first sealing part formed at one side of the body and configured to directly press the side so as to seal the side,
• wherein the first sealing part comprises:
• a first weak sealing part configured to seal an inner portion of the side and formed to be recessed inward;
• and
• a first pattern part configured to seal an outer portion of the side and formed by regularly repeating a first rib formed to protrude outward and a first groove formed to be recessed inward, and
• a second sealing tool configured to be in contact with the first sealing tool with the side therebetween to press the other surface of the side,
• a second sealing part of the second sealing tool comprises:
• a second weak sealing part configured to seal the inner portion of the side and formed to be recessed inward;
• and
• a second pattern part configured to seal the outer portion of the side and formed by regularly repeating a second rib formed to protrude outward and a second groove formed to be recessed inward,
• wherein, in the first pattern part and the second pattern part, the first rib and the second groove are in contact with each other with the side therebetween, and
• the second rib and the first groove are in contact with each other with the side therebetween.