Lg Energy Solution, Ltd.

Hyun Seop Yun

JunYeob Seong

Won Kyoung Park

Honggoo Han

A battery module includes a battery cell stack in which a plurality of battery cells are stacked; a module frame for housing the battery cell stack; and a heat sink which is formed under the bottom portion of the module frame and cools the plurality of battery cells. The heat sink includes a lower plate and a partition wall portion forming a flowing path of a refrigerant, and the partition wall portion is formed of a shape memory alloy, and the shape of the partition wall portion is deformed according to temperature, thereby changing the flow of the refrigerant.

Battery module and battery pack including the same

A battery pack according to an embodiment of the present invention may include a plurality of battery modules including a battery cell stack where a plurality of battery cells are stacked, a module frame accommodating the battery cell stack, and a heat sink disposed below a bottom portion of the module frame. A pack frame may accommodates the plurality of battery modules. A refrigerant transmission bolt may couple the bottom portion of the module frame, the heat sink, and the pack frame. The pack frame may includes a pack refrigerant pipe for supply and discharge of a refrigerant. A connection conduit in the refrigerant transmission bolt may connects the pack refrigerant pipe and the heat sink.

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Daejeon, South Korea

Hyun Seop Yun