| 摘要 |
PROBLEM TO BE SOLVED: To suppress temperature distribution inside a battery module from becoming uneven.SOLUTION: A battery module comprises a plurality of unit cells, a rod for controlling refrigerant flow rate being provided between the plurality of unit cells. The rod for controlling refrigerant flow rate comprises a unit cell contact part, a telescopic part, and a flow rate control valve, the unit cell contact part and the telescopic part being connected. The unit cell contact part is disposed between flat surfaces of the plurality of unit cells, the unit cell contact part contacting the flat surfaces of the plurality of unit cells. A liquid or a gas is encapsulated inside the unit cell contact part and the telescopic part, and the telescopic part becomes longer or shorter due to volume change of the liquid or the gas in response to the temperature change of the plurality of unit cells or the change of spaces between the plurality of cells. This telescopic change of the telescopic part moves the flow rate control valve, and thus the rod for controlling refrigerant flow rate is configured to work. |
