Patent ID: 8808899

Claim:
A battery case which houses a battery module having a plurality of cells, the battery module defined by opposing XY surfaces, opposing YZ surfaces, and opposing XZ surfaces, wherein X, Y and Z define directional planes, the battery case comprising: a first cover layer disposed on and covering an entire outer surface of at least one of the opposing XY surfaces, opposing YZ surfaces, and opposing XZ surfaces of the battery module, the first cover layer having a higher thermal radiation emissivity than the thermal radiation emissivity of the outer surface of the battery module; an outer case having a second cover layer, wherein the second cover layer is disposed on and covering an entire inner surface of the outer case opposing the first cover layer, the second cover layer having a higher thermal radiation emissivity than the thermal radiation emissivity of the inner surface of the outer case; and a supporting mechanism connecting the battery module to the outer case and configured to support the battery module within the outer case such that the first cover layer and the second cover layer are opposed to each other and form an air space configured to dissipate heat.