A battery module comprising a battery cooling device for a vehicle for cooling the battery module having a plurality of battery cells, comprising: a refrigerant channel disposed in an arrangement direction of the battery cells, wherein the refrigerant channel is adapted to exchange heat with the battery cells through contact with the battery cells; and a coolant channel plate, wherein the coolant channel plate is adapted to and disposed to exchange heat with the refrigerant channel through contact with the refrigerant channel and allow a coolant for cooling a refrigerant heated by heat from the battery cells in the refrigerant channel into a liquid state to flow therethrough, wherein the refrigerant channel includes a plurality of refrigerant-heating channels, wherein the plurality of refrigerant-heating channels are adapted such that the refrigerant is heated through them by exchanging heat with the battery module and a plurality of refrigerant-cooling channels, which are adapted such that refrigerant is cooled through them by exchanging heat with the coolant channel plate, and the refrigerant-heating channels and the refrigerant-cooling channels are disposed alternately in the arrangement direction of the battery cells, wherein the refrigerant channel includes a plurality of refrigerant-passing channels connected between the refrigerant-heating channels and the refrigerant-cooling channels, and wherein the refrigerant-heating channels contact with only the bottoms of the battery cells of the battery cells disposed over the refrigerant channel and the coolant channel plate disposed under the refrigerant channel, and the refrigerant-cooling channels contact with only the coolant channel plate, and the refrigerant-passing channels connect between the refrigerant-heating channels and the refrigerant-cooling channels without contact with any one of the battery cells and the coolant channel plate. a refrigerant channel disposed in an arrangement direction of the battery cells, wherein the refrigerant channel is adapted to exchange heat with the battery cells through contact with the battery cells; and a coolant channel plate, wherein the coolant channel plate is adapted to and disposed to exchange heat with the refrigerant channel through contact with the refrigerant channel and allow a coolant for cooling a refrigerant heated by heat from the battery cells in the refrigerant channel into a liquid state to flow therethrough, wherein the refrigerant channel includes a plurality of refrigerant-heating channels, wherein the plurality of refrigerant-heating channels are adapted such that the refrigerant is heated through them by exchanging heat with the battery module and a plurality of refrigerant-cooling channels, which are adapted such that refrigerant is cooled through them by exchanging heat with the coolant channel plate, and the refrigerant-heating channels and the refrigerant-cooling channels are disposed alternately in the arrangement direction of the battery cells, wherein the refrigerant channel includes a plurality of refrigerant-passing channels connected between the refrigerant-heating channels and the refrigerant-cooling channels, and wherein the refrigerant-heating channels contact with only the bottoms of the battery cells of the battery cells disposed over the refrigerant channel and the coolant channel plate disposed under the refrigerant channel, and the refrigerant-cooling channels contact with only the coolant channel plate, and the refrigerant-passing channels connect between the refrigerant-heating channels and the refrigerant-cooling channels without contact with any one of the battery cells and the coolant channel plate.