Patent ID: 9112190
Filing Date: 2015-08-18
Classification: H01M,Y02E,Y02P

Abstract:
1. A battery pack, comprising: a bare cell, the bare cell including a terminal, a first surface, a second surface facing the first surface, a pair of short side surfaces including a first short side surface and a second short side surface, and a pair of long side surfaces; a circuit module on the first surface of the bare cell, the circuit module being electrically connected to the bare cell, wherein the circuit module includes a lead tab; and a frame covering a portion of the bare cell including the circuit module thereon, wherein: wherein the frame includes: a front surface corresponding to the first surface of the bare cell; a pair of side surfaces corresponding to the pair of short side surfaces of the bare cell; and extending surfaces extending from edges of the front surface and the pair of side surfaces to long side surfaces of the bare cell, wherein the frame is an all-in-one type in which the front surface, the pair of side surfaces, and the extending surfaces are integrally formed; wherein the side surfaces of the frame include: a first side surface corresponding to the first short side surface of the bare cell, the first side surface of the frame including a first protrusion part at an end of an interior portion thereof, the first protrusion part directly contacting the first short side surface of the bare cell and having a width equivalent to a width of the first short side surface; and a second side surface corresponding to the second short side surface of the bare cell, the second side surface of the frame including a second protrusion part an end of an interior portion thereof, the second protrusion part directly contacting the second short side surface of the bare cell and having a width equivalent to a width of the second short side surface; and wherein a thickness of the first protrusion part is greater than a thickness of the second protrusion part.