BATTERY PACK

摘要

The present invention relates to a battery pack comprising: a plurality of secondary batteries; a battery module having a plurality of cartridges forming a cooling channel, ; a lower portion case ; and a pack case and supporting at least one of the secondary batteries and housing the battery module and a battery module having a plurality of cartridges are stacked arrangement, the lower It includes a pack case consisting of an upper case for sealing the case, a lower case and at least one of the upper case fluid flows from having a window for forming the access passage of the fluid and window, pack case outside of the one side and a first opening, a first tunnel section for forming a first flow path to the upper direction from the opening, located in the tunnel first top portion may have a second opening communicating with the inner pack case.