| CPC H01M 10/6554 (2015.04) [H01M 10/613 (2015.04); H01M 10/6551 (2015.04); H01M 10/6556 (2015.04); H01M 10/6567 (2015.04); H01M 50/204 (2021.01); H01M 2220/20 (2013.01)] | 19 Claims |
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1. A battery pack comprising:
a plurality of battery modules;
at least one module bus bar coupling the plurality of battery modules; and
a pack housing configured to house the plurality of battery modules,
wherein each of the plurality of battery modules includes:
a plurality of battery cells which include a cell body configured to house an electrode assembly and electrode tabs drawn out from the cell body, respectively, and are stacked in a front-rear direction; and
a housing unit configured to enclose at least a portion of an outer surface of the plurality of stacked battery cells to house the plurality of stacked battery cells,
wherein the housing unit includes a heat sink unit having a refrigerant flow passage formed therein,
wherein the heat sink unit includes:
a first heat sink member positioned below the plurality of battery cells, the first heat sink member being in contact on the plurality of battery cells; and
a second heat sink member positioned below the first flow passage, the second heat sink member coupled to the first heat sink member,
wherein the first heat sink member and the second heat sink member form the refrigerant flow passage, and
wherein refrigerant flow passage is extended rearward from a front end of the heat sink unit, turns around at a rear end of the heat sink unit and is extended forward from the rear end of the heat sink unit.
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