Patent ID: 9620753
Date: 2017-04-11
CPC Classifications: H01M,Y02E

Claim:
1. A battery comprising: a first sub battery module including a first battery cell, an electrode tab extended from the first battery cell in one direction, and a first pouch enclosing the first battery cell; a first battery module case surrounding and protecting the first sub battery module, the first battery module case having a first flat plate, a second sub battery module including a second battery cell, an electrode tab extended from the second battery cell in one direction, and a second pouch enclosing the second battery cell; and a second battery module case surrounding and protecting the second sub battery module, the second battery module case having a second flat plate, wherein the first sub battery module and the second sub battery module are arranged in way that the first flat plate and the second flat plate are in parallel and face each other, wherein the first flat plate protrudes at a predetermined region thereof toward the second flat plate to form a first concave seating groove having a first inner space open toward the first pouch, and the second flat plate protrudes at a predetermined region thereof toward the first flat plate to form a second concave seating groove having a second inner space open toward the second pouch, the second concave seating groove being spaced apart from the first concave seating groove; and wherein a first cutting unit is disposed inside the first inner space, a cutting edge of the first cutting unit being toward the first pouch, and a second cutting unit is disposed inside the second inner space, a cutting edge of the second cutting unit being toward the second pouch.