A processing unit includes a substrate, an electrical load, and a microfluidic volume. The electrical load is supported by the first surface of the substrate, and the microfluidic volume is positioned in the second surface of the substrate. The processing unit includes a first electrode positioned in the microfluidic volume and a second electrode positioned in the microfluidic volume. A first TSV connects the first electrode to the electrical load, and a second TSV connects the second electrode to the electrical load. An electrochemical fluid is positioned in the microfluidic volume to provide electrical power to the electrical load and receive heat from the electrical load.

Embodiments described herein provide for water reclamation from the exhaust stream of a RSOFC while the RSOFC operates in fuel cell mode. The reclaimed water is stored for use by the RSOFC while in electrolysis mode. An embodiment includes a RSOFC, a condensate tank, a condenser, and a controller. The RSOFC generates electrical power and water vapor by consuming hydrogen gas in the fuel cell mode, and consumes electrical power and water to generate the hydrogen gas in the electrolysis mode. The condenser condenses the water vapor into water, and directs the water to the condensate tank. The controller, responsive to transitioning the RSOFC from the fuel cell mode to the electrolysis mode, supplies the water to the RSOFC from the condensate tank, and supplies the electrical power to the RSOFC to electrolyze the water and to generate the hydrogen gas.

Fuel cell arrangement having an improved efficiency. The arrangement comprises one or more fuel cell units 110 and a methanation unit 200 and a control unit 300. The fuel cell unit comprises a water inlet 111, a hydrogen outlet 112 and an oxygen outlet 113. The methanation unit comprises a catalyst 222, a hydrogen inlet 213, a carbon oxide inlet 214 having a first controllable valve 215 and a methane outlet 216, wherein the hydrogen outlet of the first fuel cell unit is coupled to the hydrogen inlet of the methanation unit, and the methanation unit is adapted to convert hydrogen and carbon oxide into methane, wherein the control unit is adapted to control the first controllable valve so as to obtain an optimum converting process to convert hydrogen and carbon oxide into methane.

The invention relates to a method for operating a regenerative bipolar membrane fuel cell and regenerative bipolar cell for storing and generating energy. The method according to the invention comprises: providing a regenerative bipolar membrane fuel cell comprising: a reactor with an anode compartment having an anode and a cathode compartment having a cathode; anda number of cell units separating the anode and cathode compartments, wherein the cell unit comprises an anion exchange membrane, a cation exchange membrane, and a bipolar, with the membranes defining compartments; providing a fluid on both sides of the bipolar membrane with ion concentrations such that water activity difference between the fluids on both sides of the bipolar membrane is minimized; storing energy in an energy storage state by providing an external current to the reactor such that a pH difference between fluids in contact with the bipolar membrane is achieved; switching between the energy storage state and an energy generation state; andregenerating energy in the energy generating state from the p H difference between fluids in contact with the bipolar membrane.

A method of managing a power supply system for a data center includes circulating a fluid in a cooling circuit, obtaining data regarding a server located in the data center using a sensor, controlling the transfer of heat energy from the server to the fluid based on the data, coupling the fluid to an electrochemical power generator, and generating power for the server using the fluid in the electrochemical power generator.

A Reversible Solid Oxide Fuel Cell (RSOFC) system includes a Reversible Solid Oxide Fuel Cell (RSOFC) unit, a bi-directional alternating current/direct current (AC/DC) converter, coupled to the RSOFC unit, a common bus, coupled to the bi-directional AC/DC converter and to a power grid, and a plurality of RSOFC subsystems, coupled to receive power only through the common bus. The RSOFC unit has a fuel cell mode, wherein the RSOFC unit produces electrical power from fuel, and an electrolysis mode, wherein the RSOFC unit consumes electrical power to produce the fuel. The bi-directional AC/DC converter is coupled to the RSOFC unit, and is configured to convert direct current (DC) electrical power produced by the RSOFC unit into outgoing alternating current (AC) power, and to convert incoming AC power into DC power for consumption by the RSOFC unit in electrolysis mode.

Electric power energy required in an alkaline water electrolytic device and an alkaline fuel cell for continuing an electrolytic treatment, a hydrogen gas and an oxygen gas serving as raw materials for the electric power energy, an amount of water corresponding to raw water lost through the electrolytic treatment, and an electrolytic solution are efficiently circulated and used in a water treatment system to considerably reduce electric power consumption. Provided is a water treatment system using an alkaline water electrolytic device and an alkaline fuel cell in which an alkaline water electrolytic device and an alkaline fuel cell are connected to each other, the volume of raw water is reduced, an oxygen gas and a hydrogen gas that are generated from the alkaline water electrolytic device are fed to the alkaline fuel cell, the oxygen gas and hydrogen gas are used to generate electric power by the alkaline fuel cell, electric energy and water are collected, and the collected electric energy is fed to the alkaline water electrolytic device as an electric power source thereof.

An electrochemical cell includes a pair of bipolar plates and a membrane electrode assembly between the bipolar plates. The electrochemical cell further includes a first seal defining a high pressure zone, wherein the first seal is located between the bipolar plates and configured to contain a first fluid within the high pressure zone. Further, the electrochemical cell includes a second seal defining an intermediate pressure zone, wherein the second seal is located between the bipolar plates and configured to contain a second fluid within the intermediate pressure zone. The first seal is configured to leak the first fluid into the intermediate pressure zone when the first seal unseats.

A propulsion system including an electric motor, the output of which drives a propeller, and a reversible fuel cell comprising a cathode and an anode connected to the electric motor, a supply line connecting the fuel cell to the dihydrogen tank and a feed line connecting the fuel cell to the temporary water tank.

A redox device, in particular a hydrogen-oxygen redox device, includes at least one redox unit which is provided for carrying out at least one redox reaction with consumption and/or production of a first gas, in particular hydrogen gas, and/or of a second gas, in particular oxygen gas. The redox device includes at least one gas purification unit for freeing the hydrogen gas of contamination by oxygen gas and/or freeing the oxygen gas of contamination by hydrogen gas.