Battery pack

A battery pack comprising:

• a plurality of battery cells;
• a battery case accommodating the battery cells;
• and
• a flow path provided in the battery case and configured to allow a liquid medium for adjusting a temperature of the battery cells to flow in the flow path, wherein
• a bottom plate of the battery case includes a first bottom plate on an upper surface of which the battery cells are placed, and a second bottom plate overlapping a lower surface of the first bottom plate,
• the flow path is defined between the first bottom plate and the second bottom plate by a recess formed to at least one of the first bottom plate or the second bottom plate,
• a buckling inhibition portion, which inhibits buckling of the bottom plate when a load is applied to the battery case from outside, is provided inside the flow path, and
• the buckling inhibition portion
• includes a plurality of projections which is formed to at least one of the first bottom plate or the second bottom plate and protrudes toward other of the first bottom plate or the second bottom plate, and
• is constituted by disposing the plurality of projections side by side along an extending direction of the flow path such that a virtual line connecting centerlines of the projections adjacent to each other extends in a zigzag manner.