Heat management system for a fuel cell battery

A heat management system for a fuel cell battery, the heat management system comprising:

• a radiator disposed in heat exchange relationship with a cooling water;
• a first loop comprising a pump configured to circulate the cooling water in the first loop;
• a first valve configured to direct the cooling water passing through the radiator to the first loop;
• a second loop configured to circulate the cooling water therein and comprising a fuel cell stack disposed in heat exchange relationship with the cooling water;
• a second valve configured to bring the first loop and the second loop into fluid communication with each other;
• and
• a controller configured to control operations of the pump, the first valve, and the second valve,
• wherein the fuel cell stack comprises:
• an external cooling passage arranged on an outer circumference of the fuel cell stack and configured to allow the cooling water to flow therethrough, and an internal cooling passage configured to allow the cooling water to flow inside the fuel cell stack.

A heat management system for a fuel cell battery, the heat management system comprising:

• a fuel cell stack comprising a plurality of fuel cells stacked on one another;
• a plurality of external cooling passages arranged on an external circumferential surface of the fuel cell stack and configured to allow a cooling water to flow therethrough;
• and
• an internal cooling passage configured to allow the cooling water to flow inside the fuel cell stack,
• wherein the plurality of external cooling passages includes:
• a first external cooling passage configured to receive the cooling water in a first direction;
• and a second external cooling passage configured to receive the cooling water in a second direction opposite to the first direction.