Pouch for secondary battery including reinforcing parts

A pouch for a secondary battery, comprising:

• a first pouch portion and a second pouch portion;
• a first accommodation groove and a second accommodation groove formed in a first surface of the first pouch portion and a first surface of the second pouch portion, respectively, the first and second accommodation grooves facing one another;
• a first reinforcing part formed on a second surface of the first pouch portion and configured to prevent the first pouch portion from being curled or bent in a direction of the first accommodation groove;
• and
• a second reinforcing part formed on a second surface of the second pouch portion and configured to prevent the second pouch portion from being curled or bent in a direction of the second accommodation groove,
• wherein the first reinforcing part protrudes in one direction of the first pouch portion, and the second reinforcing part protrudes in another direction of the second pouch, which is a direction opposite to the one direction, and a groove portion of the first reinforcing part is coupled to a protrusion portion of the second reinforcing part.