Patent ID: 9112202
Filing Date: 2015-08-18
Classification: H01M,Y02E,Y02P

Abstract:
1. A battery module comprising: a first unit cell arranged parallel to a second unit cell, each of the first and second unit cells comprising a first electrode terminal and a second electrode terminal having a polarity opposite to that of the first electrode terminal, the first electrode terminal of the first unit cell being juxtaposed to the second electrode terminal of the second unit cell; and a spacer arranged between the first and second unit cells and two adjacent spacers interposed therebetween by the spacer and the first and second unit cells, each of the spacer and the two adjacent spacers comprising a main body, a first side surface, and a second side surface parallel to the first side surface, the side surfaces symmetrically protruding from a front and a rear surface of the main body, wherein each of the spacer and the two adjacent spacers further comprises a first wall portion extending upward from the main body, a second wall portion perpendicular to the first wall portion and contacting the first wall portion, and a third wall portion parallel to the second wall portion, the first, second, and third wall portions all having a same height and extending upward from the main body, wherein the first and second side surfaces extend upward to the same height as the first wall portion, the first and second side surfaces and the second and third wall portions being parallel, wherein the first wall portion of the spacer is disposed at and between the first electrode terminal of the first unit cell and the second electrode terminal of the second unit cell, the first wall portion having a height greater than a height of the first electrode terminal of the first unit cell, wherein the spacer and the two adjacent spacers are arranged in alternating orientations such that the second side surface and the third wall portion of the spacer cooperate with the first side surface, the first wall portion, and the second wall portion of each of the two adjacent spacers to completely surround a perimeter of the juxtaposed second electrode terminal of the first unit cell and the first electrode terminal of the second unit cell on all four sides at a height greater than a height of each of the second electrode terminal of first unit cell and the first electrode terminal of the second unit cell, and wherein each of the spacer and the two adjacent spacers comprises an air exhaust passage member, the air exhaust passage members of the spacer and the two adjacent spacers are connected to one another to form an air exhaust pipe.