Abstract: An aircraft has an aircraft propulsor and/or an aircraft propulsor drive. The aircraft propulsor and/or an aircraft propulsor drive acts as a waste heat source. The aircraft has a metal-air fuel cell. The aircraft has a waste heat transfer system configured to thermally couple the metal-air fuel cell and a waste heat source. The aircraft includes a control system configured to operate the waste heat transfer system to selectively transfer waste heat from the waste heat source to the metal-air fuel cell.

Abstract: The present disclosure relates to an energy module having a plurality of energy generating cells, and at least one cooling plate having opposing surfaces. The cooling plate is disposed between an adjacent pair of the energy generating cells such that the opposing surfaces of the cooling plate are in contact with surfaces of the adjacent pair of energy generating cells. The cooling plate has at least one coolant flow channel configured to receive a coolant flow therethrough to limit propagation of heat from one to the other of either one of the adjacent pair of energy generating cells when either one of the adjacent pair of energy generating cells fails.