A flow plate for use as an anode current collector in an electrolytic cell for the production of hydrogen from water is provided. The flow plate comprises a channel plate and a cover plate. A front face of the channel plate is provided with a flow field pattern of open-faced channels defined by depressed portions alternating with elevated portions. The cover plate made of a material that is corrosion resistant in an anodic environment of water electrolysis. The cover plate is arranged parallel on top of the channel plate and in electrical contact with the front face thereof. The cover plate is further provided with a pattern of through-going apertures alternating with closed portions, and the closed portions cover at least the elevated portions of the channel plate.

An assembly comprising a SOEC/SOFC-type solid oxide stack, and a clamping system for the stack, said clamping system comprising at least two clamping rods that can be used to assemble upper and lower clamping plates. The assembly further comprises a heat exchange system formed at least in part by at least two hollow clamping rods of the clamping system, through which a fluid to be superheated or preheated flows.

An electrochemical device includes at least one electrochemical cell, including a membrane electrode assembly and bipolar plates through which at least one discharge manifold passes, the membrane electrode assembly including an active zone and a connection zone; at least one hydrogen sensor including an anode positioned in the connection zone and including a catalyst suitable for ensuring the oxidation of the hydrogen, and a cathode opposite the anode; a voltage source; a current sensor; and a computing unit, suitable for detecting the presence of hydrogen from the measured value of the electric current.

The present disclosure is directed to a method for tuning the performance of at least one electrochemical cell of an electrochemical cell stack. The method includes supplying power to an electrochemical cell stack. The electrochemical cell stack includes a plurality of electrochemical cells. The method further includes monitoring a parameter of at least one electrochemical cell and determining if an electrochemical cell becomes impaired. The method also includes diverting a fraction of the current flow from the impaired electrochemical cell during operation of the electrochemical cell stack.

Features for an aqueous reactor include a field generator. The field generator includes a series of parallel conductive plates including a series of intermediate neutral plates. The intermediate neutral plates are arranged in interleaved sets between an anode and a cathode. Other features of the aqueous reactor may include a sealed reaction vessel, fluid circulation manifold, electrical power modulator, vacuum port, and barrier membrane. Methods of using the field generator include immersion in an electrolyte solution and application of an external voltage and vacuum to generate hydrogen and oxygen gases. The reactor and related components can be arranged to produce gaseous fuel or liquid fuel. In one use, a mixture of a carbon based material and a liquid hydrocarbon is added. The preferred carbon based material is powdered coal.

The present invention provides a stacking type hydrogen generating device comprising an electrolysis module, a water tank, a filter and a humidifier. The electrolysis module is disposed in the water tank, the humidifier vertically stacked above the water tank, and the filter vertically stacked above the humidifier. A gas comprising hydrogen generated by the electrolysis module can enter the filter through the first flow channel of the humidifier and enter the humidifier after filtered by the filter. The flow channels between the aforementioned units are respectively integrated with the aforementioned units. Accordingly, the volume and the pipelines of the stacking type hydrogen generating device could be decrease and safety could be improved.

A cell stack device (1) according to the present invention includes a plurality of cells (3) having a columnar shape; and electrically conductive members (4) interposed between adjacent cells (3) of the plurality of cells (3), and connected to the each adjacent cell (3) with a bonding material (15) having electrically conductive property. The bonding material (15) contains electrically conductive particles and fibrous bodies (16) having electrically insulating properties, and a major axis direction of the fibrous bodies (16) is oriented in a predetermined direction in regions where the electrically conductive members (4) face to the each adjacent cell (3).

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.

The present disclosure relates to methods and devices for use in photoelectrochemical reduction of CO.sub.2. In particular, it is disclosed a filter-press photoelectrochemical cell for producing a reduction product from CO.sub.2 and a method for the photoelectrochemical reduction of CO.sub.2.

An electrochemical reaction cell stack including a plurality of unit cells and flat plate-shaped electrically conductive members arranged in a first direction. The electrically conductive members include: a first member having a first surface including a first flat portion and a protruding portion and a second member both located on the first side of the first member in the first direction, the second member having a second surface facing the first surface and including a second flat portion and a recessed portion facing the protruding portion. The thickness of the second member is larger than the thickness of the first member in the first direction. The depth of the recessed portion of the second member from the second flat portion is larger than the protruding length of the protruding portion of the first member from the first flat portion in the first direction.