Pouch type secondary battery and method for manufacturing the same

A method for manufacturing a pouch type secondary battery, the method comprising:

• a primary sealing step of applying a sealant to a predetermined region of circumferential surfaces of cases bonded to each other so as to integrate the cases with each other to perform sealing, thereby forming a sealing part and non-bonded parts;
• a folding step of folding the non-bonded parts toward a space therebetween to bond end portions of the non-bonded parts to each other;
• and a secondary sealing step of inserting the sealant into a point at which the non-bonded parts are folded to be bonded to each other to perform sealing;
• wherein the folding step includes a primary folding step of vertically bending the center parts of the non-bonded parts toward the space between the non-bonded parts;
• wherein in the primary folding step, a first bending jig of which both sides of one end portion are inclined symmetrically to each other so that a cross section increases is inserted into the space between the non-bonded parts to support inner side surfaces of the non-bonded parts.