Patent ID: 9413045
Filing Date: 2016-08-09
CPC Classification: H01M,Y02E

Claim Text:
1. A battery pack comprising: battery stacks each formed of battery cells stacked on one another and bus bars disposed at a first end side of the battery stack for connection between electrode terminals of the battery cells; a battery pack case housing the battery stacks; a fan device disposed inside the battery pack case for circulating fluid within the battery pack case; a communicating passage closed at one end and connected to an inlet of the fan device, the communicating passage being configured to enable the fluid that passes through each of the battery stacks to flow directly into the fan device; and a spacer disposed between respective adjacent battery cells to guide the fluid blown from the fan device to flow in a direction from the first end side to a second end side opposite to the first end side along lateral sides of the battery cells, wherein each of the battery cells includes a battery cell case as an outer shell thereof that includes an exposed portion having a predetermined exposed length by which the battery cell case projects from an end at the first end side of the spacer.