Patent ID: 9017855
Filing Date: 2015-04-28
Classification: H01M,Y02E

Abstract:
1. A battery pack including a connection member for electric connection of a plurality of battery cells, wherein the battery pack has the battery cells mounted in a pack case including an upper case and a lower case constructed to form a hollow structure in which the upper case and the lower case are coupled with each other, and the pack case is provided at positions corresponding to electrode terminals of the battery cells with connection through-holes through which electrode terminals of the plurality of battery cells are exposed; wherein each of the upper and lower cases includes a plurality of spacers protruding from an inner part for supporting the battery cells and a plurality of through-holes corresponding to the plurality of spacers such that the plurality of spacers communicate with the outside of the pack case; wherein the connection member includes at least two terminal contact parts which are connected to electrode terminals of neighboring battery cells, and a connection part for interconnecting the terminal contact parts, in which the connection part is provided with a protruding voltage-detection connection part; and wherein the terminal contact parts are depressed relative to the connection part by a distance corresponding to a thickness of the lower case, such that the connection member connects the electrode terminals of the battery cells while the connection part of the connection member is mounted on an outer surface of the pack case; and wherein the connection part of the connection member is provided with coupling grooves, by which the connection member is mounted to the pack case and the pack case is provided at the outer surface thereof with coupling protrusions, which are engaged with the coupling grooves.