Abstract: An electrochemical heat pump system comprising an electrochemical pump, refrigerant-based cooling system, and gas-driven compressor. The electrochemical pump is capable of reversibly producing and consuming hydrogen gas. The cooling system comprises a condenser, compressor, and evaporator in thermal communication with an object to be cooled. The compressor comprises a chamber having a fixed volume and a flexible separator that physically divides the chamber into a gas space and a refrigerant space containing vapor refrigerant. As hydrogen gas is produced in the gas space, the flexible separator extends into the refrigerant space thereby expanding the gas space and compressing the vapor refrigerant. As the vapor refrigerant is compressed, it is forced through the condenser where the refrigerant is liquefied. The liquid refrigerant then passes through the evaporator where the liquid refrigerant is evaporated by absorbing heat from the object to be cooled.

Abstract: A reciprocal design for an electrochemical heat exchanger comprised of a gas-based driving system, a liquid-based cooling system, and a non-permeable flexible diaphragm to physically separate the contents of the driving system from the contents of the cooling system while maintaining a pressure based communication between the contents of the two systems. The gas-based driving system utilizes a hydrogen electrochemical pump to induce circulation of a liquid coolant through the cooling system. Said liquid coolant exchanges heat with the object to be cooled and transfers heat out of the heat exchange system by way of matched banks of radiator tubes.

Abstract: An electrochemical heat exchanger which includes a housing, hydrogen producing/consuming portions separated by a proton exchange membrane and a gas space designed to contact an object in need of cooling. The gas space includes either hydrogen or a liquid gas which is placed in thermal contact with an item to be cooled. The hydrogen gas or liquid coolant exchanges heat with the element to be cooled and is constantly replenished by hydrogen or liquid coolant forced through the heat exchanger by a pressure differential created between the respective hydrogen electrodes.

Abstract: An electrochemical heat exchanger including a housing, at least one electrochemical cell within the housing with a first electrode and a hydrogen electrode at least partially immersed in a liquid electrolyte, and positive and negative terminals of the electrochemical cell connected through the housing to respective positive and negative ends of a power supply. The housing includes a gas space which is in communication with a heat exchange chamber. The heat exchange chamber can be a flexible chamber capable of expanding in response to an increase in pressure in the electrochemical cell and contracting in response to a decrease in pressure in the electrochemical cell or it can be a conduit whereby an element to be cooled is placed in thermal contact with either hydrogen gas or a liquid coolant.

Abstract: An electrochemical heat exchanger including a housing, at least one electrochemical cell within the housing with a first electrode and a hydrogen electrode at least partially immersed in a liquid electrolyte, and positive and negative terminals of the electrochemical cell connected through the housing to respective positive and negative ends of a power supply. The housing includes a gas space which is in communication with a heat exchange chamber. The heat exchange chamber can be a flexible chamber capable of expanding in response to an increase in pressure in the electrochemical cell and contracting in response to a decrease in pressure in the electrochemical cell or it can be a conduit whereby an element to be cooled is placed in thermal contact with either hydrogen gas or a liquid coolant.