Abstract: A coolant storage tank (1) for storing coolant in a fuel cell system (2), the coolant storage tank comprising a plurality of individually controllable heater elements (7, 8a, 8b). A coolant storage tank comprising a first heater element (7) located at a base of the coolant storage tank and a second heater element (8a) is also disclosed. A coolant storage tank comprising a first coolant storage compartment (50) in fluid communication with a second coolant storage compartment (51), the first coolant storage compartment including at least a first heater element (54) and wherein the second coolant storage compartment is unheated is also disclosed. A method of melting frozen coolant in a coolant storage tank is also disclosed.

Abstract: Disclosed is a cooling module for use in a fuel cell system, the module includes a tank configured to receive a coolant therein, a coolant, a pump in fluid communication with the coolant in the tank and the fuel cell system, the pump being configured to transport the coolant to the fuel cell system, a heating element within the coolant in the tank, the heating element configured to heat the coolant, and at least one sensor in signal communication with a controller and in fluid communication with the tank. The sensor is configured to detect a change corresponding to the presence or absence of sufficient liquid coolant to initiate said pump, and the controller processes sensor data and is configured to actuate the pump.