Patent ID: 9673495
Date: 2017-06-06
CPC Classifications: H01M,Y02E

Claim:
1. A battery module assembly, comprising: a plurality of unit modules comprising a plurality of unit cells and a plurality of cartridges, wherein each unit module comprises two unit cells, each mounted to a cartridge, and wherein unit cells are electrically connected to each other via bus bars mounted to the cartridges; two or more sub-modules, each of which comprises two or more unit modules vertically stacked from a ground to form a coolant flow channel at an interface therebetween, the unit modules being arranged in a lateral direction in a state of being spaced apart from each other to provide the coolant flow channel; and a module case, in which the sub-modules are received and fixed, the module case having a coolant inlet port, through which a coolant is introduced into the module case, and a cool outlet port, through which the coolant is discharged out of the module case, wherein the coolant flow channel is configured to have a structure in which a vertical sectional area of the coolant flow channel decreases toward the coolant outlet port, wherein each of the unit cells is a plate-shaped battery cell or a battery cell assembly comprising two or more plate-shaped battery cells mounted in a cell cover in a state in which electrode terminals of the battery cells are exposed, wherein the electrode terminals are connected in parallel to each other via said bus bars, and wherein in each unit module, the two unit cells are mounted to cartridges such that the electrode terminals face each other.