Patent ID: 9608244
Date: 2017-03-28
CPC Classifications: H01M,Y02E,Y02P

Claim:
1. A battery pack comprising two or more battery modules, in which each of the battery modules comprises: (a) a battery cell stack comprising two or more battery cells or unit modules electrically connected to each other in a state in which the battery cells or unit modules are vertically stacked; (b) a first housing to cover the entirety of the end of one side of the battery cell stack and portions of the top and bottom of the battery cell stack; (c) a second housing to cover the entirety of the end of the other side of the battery cell stack and the remainder of the top and bottom of the battery cell stack; and (d) a coolant inlet formed at one side of the battery module and a coolant outlet formed at another side of the battery module opposite of the coolant inlet, whereby a coolant passes through spaces defined between the battery cells or the unit modules of the battery cell stack, wherein the first housing and the second housing are provided with coupling holes formed to couple the first housing and the second housing to each other, the coupling holes being horizontal coupling holes, through which coupling members can be inserted in the lateral direction, the first housing or the second housing is provided with a pair of external input and output terminals, the external input and output terminals being fouried at the first housing or the second housing in structure protruding parallel to a stacking direction of the battery cell stack, the first housing and/or the second housing is provided with coupling holes formed to install the battery module in a predetermined space or on a predetermined device, the coupling holes being vertical coupling holes, through which coupling members can be inserted from above, each of the battery cells is a plate-shaped battery cell having electrode terminals formed at the upper end and the lower end thereof, respectively, each plate-shaped battery cell having a first major surface opposite a second major surface and a plurality of minor surfaces extending between the first major surface and the second major surface, the top of the battery cell stack being defined by the first major surface of one of the battery cells and the bottom of the battery cell stack being defined by the second major surface of another one of the battery cells, the battery modules of the battery pack are arranged in the lateral direction and in the rearward direction, at least two adjacent battery modules are separated by a space, whereby the coolant passes through the space between the at least two adjacent battery modules, and external input and output terminals of the battery modules are electrically connected to each other via cables.