Abstract: A device for converting a liquid into vapor includes an enclosure, a heating surface with a downward slope arranged in the enclosure, and a liquid inlet port connected to an upper portion of the heating surface so that a liquid introduced from the liquid inlet port flows on the heating surface. The device also includes a vapor outlet port formed through a wall of the enclosure. The heating surface includes a heat transfer pipe configured to allow the flowing of a heat transfer fluid to heat the heating surface, and a corner piece including a U-shaped cross-section with a semi-circular portion arranged around the heat transfer pipe and an upper portion forming an opening on the enclosure.

Abstract: A system for high-temperature reversible electrolysis of water, characterised in that it includes: a high-temperature reversible electrolyser, configured to operate in SOEC (solid oxide electrolyser cell) mode to produce hydrogen and store electricity, and/or in SOFC (solid oxide fuel cell) mode to withdraw hydrogen and produce electricity; a hydride tank, thermally coupled with the reversible electrolyser, the system being configured to allow the recovery of heat released by the hydride tank during hydrogen absorption in order to produce pressurised steam intended for entering the reversible electrolyser in SOEC mode, and to allow the recovery of heat released by the one or more outgoing streams from the reversible electrolyser in SOFC mode so as to allow the desorption of hydrogen from the hydride tank.

Abstract: A busbar for a battery pack, intended to electrically connect at least one electrochemical accumulator battery of the pack, preferably to electrically connect several electrochemical accumulator batteries of the pack to one another, including an electrically conductive and sealtight envelope itself intended to channel the current of the accumulator batteries and designed to contain a heat transfer liquid whose vaporization temperature is chosen so as to be between a value close to 90% of the self-heating temperature and a value close to 110% of the thermal runaway temperature of the accumulator batteries of the pack, the sealtight envelope being designed to guarantee an injection of heat transfer liquid as close as possible to each accumulator battery to which it is intended to be connected, preferably close to at least one of its output terminals.

Abstract: The invention essentially consists of proposing a novel reactor or fuel cell architecture having an active section of the catalytic material for methanation or reforming reaction integrated into the electrode which varies with the composition of the gases, as they are distributed in accordance with the electrochemistry on said electrode.

Abstract: A system for overheating gases at the inlet of a SOEC/SOFC-type solid oxide stack, the stack including a main body that has first and second zones separated by a median plane, and inflow and outflow conduits, the zones include gas circulation circuits extending in the form of a spiral and communicating by means of a passage passing through the main body. A gas flow to be heated entering the inflow conduit circulates in the first gas circulation circuit and passes through the passage to then circulate in the second gas circulation circuit and in the conduit for the outflow of the reheated gases in order to reach the inlet of the SOEC/SOFC-type solid oxide stack.

Abstract: The invention relates to a system able to operate reversibly as an SOFC fuel-cell stack or as an SOEC electrolyser. According to the invention, a bypass line or circuit is provided in order to divert if needs be some of the hot gases issued from the chambers referred to as oxygen chambers (anodic chambers in SOEC mode, cathodic chambers in SOFC-stack mode) as this will cool the heat exchanger provided in the circuit through which the oxygen flows.

Abstract: A clamping chamber in a reactor or fuel cell architecture having a stack of elementary units is above the clamping fittings. The clamping chamber, in which a gas other than the reactive gases will flow, is substantially at the same pressure as the reactive gases in the stack. The pressure of the gas flowing in the clamping chamber above the stack of elementary units will then balance the pressure created by the reactive gases and the gases produced within the stack.

Abstract: The invention relates to arranging a new seal within a porous substrate which forms the contact element of each hydrogen circulating electrode, such as the cathode for an SOEC reactor and the anode for an SOFC fuel cell, and in the periphery of the electrode beyond the ducts for supplying and recovering gases, in order to force the gases to circulate into the only useful zone of the cell which corresponds to the electrochemically active surface of the electrode. Thus, all of the gases supplied can be converted.

Abstract: A busbar for a battery pack, intended to electrically connect at least one electrochemical accumulator battery of the pack, preferably to electrically connect several electrochemical accumulator batteries of the pack to one another, including an electrically conductive and sealtight envelope itself intended to channel the current of the accumulator batteries and designed to contain a heat transfer liquid whose vaporization temperature is chosen so as to be between a value close to 90% of the self-heating temperature and a value close to 110% of the thermal runaway temperature of the accumulator batteries of the pack, the sealtight envelope being designed to guarantee an injection of heat transfer liquid as close as possible to each accumulator battery to which it is intended to be connected, preferably close to at least one of its output terminals.

Abstract: A system for clamping a high-temperature SOEC/SOFC stack, including: an upper clamping plate and a lower clamping plate between which the stack can be clamped, each plate including at least one clamping orifice; at least one clamping rod configured to extend through clamping orifices in the upper and lower clamping plates to allow them to be assembled; a clamping mechanism level with each clamping orifice, configured to interact with the at least one clamping rod; and at least one electrically insulating plate configured to be located between the stack and at least one of the upper and lower clamping plates.

Abstract: The invention relates to a system able to operate reversibly as an SOFC fuel-cell stack or as an SOEC electrolyser. According to the invention, a bypass line or circuit is provided in order to divert if needs be some of the hot gases issued from the chambers referred to as oxygen chambers (anodic chambers in SOEC mode, cathodic chambers in SOFC-stack mode) as this will cool the heat exchanger provided in the circuit through which the oxygen flows.

Abstract: A clamping chamber in a reactor or fuel cell architecture having a stack of elementary units is above the clamping fittings. The clamping chamber, in which a gas other than the reactive gases will flow, is substantially at the same pressure as the reactive gases in the stack. The pressure of the gas flowing in the clamping chamber above the stack of elementary units will then balance the pressure created by the reactive gases and the gases produced within the stack.

Abstract: A seal is mountable in contact with two metal carriers of an electrochemical device, in particular a solid oxide fuel cell (SOFC) or a high-temperature solid oxide electrolyser cell (SOEC) for electrolysis of water vapour. This seal comprises a means for making the seal impermeable, comprising at least one vitreous material; and an electrically insulating supporting means that supports the impermeable means and that has two parallel main faces, an external peripheral edge and an internal peripheral edge, the seal being able to be mounted against these carriers via these main faces, which are covered with the impermeable means. The impermeable means partitions the supporting means between these internal and external edges while extending continuously from one of the main faces to the other through the supporting means, so that the impermeable means directly connects these carriers to each other.

Abstract: A reversible SOFC-based system for generating electricity, including: an solid-oxide-fuel-cell (SOFC) stack containing at least one elementary solid-oxide electrochemical cell, each of which is formed from a cathode, an anode and an electrolyte intermediate between the cathode and the anode; a separator of liquid and gas phases, which separator is connected to the outlet of the fuel-cell stack; a methanation reactor suitable for implementing a methanation reaction, the inlet of which is connected to the outlet of the phase separator and the outlet of which is connected to the inlet of the fuel-cell stack so that the mixture issued from the methanation reactor is introduced into the fuel-cell stack; and a tank for reversibly storing hydrogen, suitable for storing hydrogen, the outlet of which is connected to the inlet of the methanation reactor.

Abstract: The invention relates to the production or a heat-transfer gas circuit for the heat management/regulation of the stack of an HTE reactor or an SOFC fuel cell by removing certain cells in certain areas of the stack in order to replace them with electrical contact elements that allow the heat transfer gas to pass through.

Abstract: A system for overheating gases at the inlet of a SOEC/SOFC-type solid oxide stack, the stack including a main body that has first and second zones separated by a median plane, and inflow and outflow conduits, the zones include gas circulation circuits extending in the form of a spiral and communicating by means of a passage passing through the main body. A gas flow to be heated entering the inflow conduit circulates in the first gas circulation circuit and passes through the passage to then circulate in the second gas circulation circuit and in the conduit for the outflow of the reheated gases in order to reach the inlet of the SOEC/SOFC-type solid oxide stack.

Abstract: A module for an HTE reactor or an SOFC fuel cell, the module including a circuit for the circulation of a gas, in addition to the reactive gases required for the electrolysis reaction or the reverse reaction in an SOFC cell, the circuit enabling, during the operation under pressure, the additional gas to equalise, on one side of the glass- and/or vitroceramic-based seals, the pressure of the reactive gases generated on the other side.

Abstract: The invention essentially consists in supplying fuel (either steam or a mixture of steam with CO2 or H2 or CH4) to distinct zones of a cell or a group of stacked cells and of an adjacent cell or group of adjacent stacked cells within a given (co-)electrolysis reactor or a SOFC fuel-cell stack.

Abstract: The invention relates to arranging a new seal within a porous substrate which forms the contact element of each hydrogen circulating electrode, such as the cathode for an SOEC reactor and the anode for an SOFC fuel cell, and in the periphery of the electrode beyond the ducts for supplying and recovering gases, in order to force the gases to circulate into the only useful zone of the cell which corresponds to the electrochemically active surface of the electrode. Thus, all of the gases supplied can be converted.

Abstract: The invention essentially consists of proposing a novel reactor or fuel cell architecture having an active section of the catalytic material for methanation or reforming reaction integrated into the electrode which varies with the composition of the gases, as they are distributed in accordance with the electrochemistry on said electrode.