Patent ID: 8974951
Filing Date: 2015-03-10
Classification: H01M,Y02E,Y02P

Abstract:
1. A battery pack comprising: a plurality of unit batteries having ends and side walls; a spacer disposed between the unit batteries so as to be interposed between the side walls of the plurality of unit batteries along the length of the unit batteries, the spacer having a plurality of surfaces that are located adjacent the ends of the batteries wherein the spacer has a first and a second end and an enclosed lead wire hole that extends between the first and the second end; an electrode tab that electrically connects at least two of the unit batteries to each other; a case in which the unit batteries and the spacer are disposed; a plurality of gap prevention ribs disposed on an inner wall of the case so as to extend outward from the inner wall of the case a distance sufficient to be respectively positioned proximate the plurality of surfaces so as to make contact with the plurality of surfaces to inhibit movement of the spacer within the case; and at least one lead wire attached to the electrode tab that extends from the first to the second end of the spacer in the enclosed lead wire hole of the spacer.