Patent ID: 7989104
Filing Date: 2011-08-02
Classification: H01M,Y02E

Abstract:
1. A battery module comprising: a case comprising a pair of opposing side plates and a pair of opposing supporting plates and having an opening on a side substantially perpendicular to the side plates and the supporting plates; a plurality of partition walls spaced apart at intervals in the case; a plurality of unit batteries insertable into the case through the opening in an insertion direction, adjacent unit batteries being separated from each other by a partition wall of the plurality of partition walls; and a battery fixing structure between the case and respective unit batteries of the plurality of unit batteries, the battery fixing structure comprising a fixing projection protruding from a side face of the respective unit battery and a cutout formed through one of the opposing side plates of the case and forming a projection receiving portion, wherein the side face of the respective unit battery and the one of the opposing side plates of the case face a direction substantially perpendicular to the insertion direction, and wherein the fixing projection is insertable into the projection receiving portion for reducing positional movement of the respective unit battery in at least the insertion direction.