A gas production apparatus including: an electrolysis vessel; first and second electrolyte circulation systems; and an electrolyte exchanger, the first/second electrolyte circulation system including: a first/second circulation tank receiving and storing a first/second electrolyte flowing out from an anode chamber/a cathode chamber; and a first/second circulation pump supplying the first/second electrolyte to the anode chamber/the cathode chamber, the electrolyte exchanger transferring part of the first electrolyte existing in the first electrolyte circulation system into the second electrolyte circulation system on one hand, and transferring part of the second electrolyte existing in the second electrolyte circulation system into the first electrolyte circulation system on the other hand.

A dual-chamber onboard electrolysis system is configured to produce HHO gas for heavy duty trucking applications.

A dual-chamber onboard electrolysis system is configured to produce HHO gas for heavy duty trucking applications.

A Multi-Mode Regenerative Fuel Cell system comprising a non-flow thru fuel cell operatively coupled to a high or medium pressure electrolyzer; a distributed reactant storage assembly comprising at least one hydrogen storage means and at least one oxygen storage means, said distributed reactant storage assembly operatively coupled to said fuel cell and electrolyzer; a pilot oxygen storage means operatively coupled to said oxygen storage means; a water storage means operatively coupled to said fuel cell and electrolyzer, and an aircraft power load operatively coupled to said fuel cell and electrolyzer.

An electrolysis system for breaking down water into hydrogen and oxygen using at least two electrolysis modules, each electrolysis module having at least two electrolytic cells, an electrolytic cell having an anode compartment and a cathode compartment, the anode compartment being separated from the cathode compartment by a proton exchange membrane, and a switching device, which is compatible with direct current, being arranged electrically in parallel with at least one electrolysis module. The electrolysis system is operated by the at least two electrolysis modules. When the available electrical power decreases, at least one switching device is closed. At least one electrolysis module is bridged by the switching device. The number of electrolysis modules which are then operated is reduced by the number of bridged electrolysis modules. When the available electrical power increases, at least one switching device is opened.

A dual-chamber electrolysis vessel safely stores HHO gas for use by an internal combustion engine.

A dual-chamber electrolysis vessel safely stores HHO gas for use by an internal combustion engine.

An electrochemical cell has a membrane located between two flow field plates. On a first side of the membrane, there is a porous support surrounded by a seal between the membrane and the flow field plate. There is a gap between the porous support and the seal at the surface of the membrane. On a second side of the membrane, there is a seal between the membrane and the flow field plate located inside of the gap in plan view. The electrochemical cell is useful, for example, in high pressure or differential pressure electrolysis in which the second side of the membrane will be consistently exposed to a higher pressure than the first side of the membrane.

An electrochemical cell has a membrane located between two flow field plates. On a first side of the membrane, there is a porous support surrounded by a seal between the membrane and the flow field plate. There is a gap between the porous support and the seal at the surface of the membrane. On a second side of the membrane, there is a seal between the membrane and the flow field plate located inside of the gap in plan view. The electrochemical cell is useful, for example, in high pressure or differential pressure electrolysis in which the second side of the membrane will be consistently exposed to a higher pressure than the first side of the membrane.

A separating membrane-gasket-protecting member assembly including: an ion-permeable separating membrane; a gasket holding a periphery of the membrane; and a frame-shaped protecting member holding the gasket; the protecting member including: a frame-shaped base body; and a frame-shaped lid member; the base body including: a receiving part being arranged in an inner periphery of the base body and receiving the gasket and the lid member; and a supporting part extending toward an inner periphery side of the base body and supporting the gasket received in the receiving part in a direction crossing a main face of the membrane; and the lid member having dimensions such that the lid member can be received in the receiving part, wherein the gasket and the lid member are received in the receiving part such that the gasket is sandwiched between the supporting part and the lid member.