Entity

Time filter

Source Type

Mol, Belgium

A process for producing a gas diffusion electrode comprising the steps of: casting a porous electrically conductive web with a suspension of particles of an electrically conductive material in a solution of a first binder to provide a first layer which is an electrochemically active layer (AL); casting a suspension of particles of a hydrophobic material in a solution of a second binder on said first layer to provide a second layer; and subjecting said first and second layer to phase inversion thereby realising porosity in both said first layer and said second layer, wherein said subjection of said second layer to phase inversion thereby realises a water repellent layer; a gas diffusion electrode obtained therewith; the use of a gas diffusion electrode in an membrane electrode assembly; a membrane electrode assembly comprising the gas diffusion electrode; and a method of producing a membrane electrode assembly is realised, said membrane electrode assembly comprising a membrane sandwiched between two electrodes at least one of which is a gas diffusion electrode, wherein said method comprises the step of casting said membrane electrode assembly in a single pass.


A power cell system, e.g. a fuel cell system, having a plurality of power cells, e.g. fuel cells and plurality of first resistances, the plurality of power cells and first resistances being connected in the form of a ladder circuit, and electronic filters each having a first connection to a first node between two of the first resistances, each electronic filter comprising a second resistance and a charge storage device connected to the second resistance.


Patent
Vito Nv | Date: 2014-05-22

A method or system for controlling an energy or power supply network having a coordination centre, a plurality of local end-user units and a communications network linking the local units and the coordination centre and a supply network connecting the local units and the coordination centre for energy or power supply. The supply network has constraints that limits power or energy consumption at at least one of the local end-user units. The method or system is adapted so that the coordination centre transmits a control signal indicating a degree of imbalance of the system to the at least one of the local end-user units, and the at least one local end-user unit is adapted to transmit a reaction signal to the coordination centre indicative of a power schedule for the local unit.


A continuous plasma treatment process, said process comprising the steps of: providing a plasma treatment apparatus, said apparatus comprising at least one plasma treatment zone, said plasma treatment zone comprising a pair of electrodes with endless dielectric belts each having a first and a second side and each covering an electrode of said pair of electrodes; producing a non-thermal plasma in a process gas at a pressure of 100 Pa to 1 MPa in the space between said pair of endless dielectric belt-covered electrodes by applying a voltage between said electrode pair; providing a web material to be treated such that it can be transported by said two endless dielectric belts in such a way that there is an area in the plane of said belt at least about 5 mm on either side of said web material on the side of said endless dielectric belts with no part thereof facing one electrode of said pair of electrodes; transporting said web material using said endless dielectric belts in frictional contact with said electrodes such that the side of said web material not in contact with said endless dielectric belts is treated in two passes through said at least one plasma treatment zone while at the same time the exposed parts of the endless dielectric belts transporting said web material are also treated; and cleaning said parts of said endless dielectric belts treated with said plasma using a cleaning station outside said plasma treatment zone prior to said endless dielectric belts re-entering said plasma treatment zone, wherein said electrodes have a length in the transport direction of said endless dielectric belts of at least 10 mm; and an apparatus comprising: at least one plasma treatment zone, said plasma treatment zone comprising a pair of electrodes with endless dielectric belts each having a first and a second side and each covering an electrode of said pair of electrodes; a voltage power supply for each plasma treatment zone connected to said pair of electrodes such that a non-thermal plasma can be produced upon applying a voltage to said electrode pairs in a process gas in the space between each pair of endless dielectric belt-covered electrodes; each of said electrodes in said plasma treatment zone having a discharge surface and said discharge surface being in contact with a first side of said endless dielectric belts thereby shielding said discharge surfaces and the respective sides of the endless dielectric belts in contact with said electrodes from products of said non-thermal plasma; a means of transporting a web material to be treated comprising said endless dielectric belts; a process gas supply; rollers for driving/guiding said endless dielectric belts; and a cleaning station capable of cleaning products of said plasma treatment on the second sides of said endless dielectric belts therefrom.


Patent
Vito Nv | Date: 2014-02-26

The present invention relates to a mesh-shaped, porous electric current density distributor for use with an electrode, the current density distributor being adapted for providing electric current to an active layer of the electrode, which active layer is provided to contact a face of the current density distributor, wherein the current density distributor comprises a porous mesh having a plurality of electrically conductive paths, wherein at least part of the electrically conductive paths extend along a direction of major current flow over the current density distributor. The porous mesh comprises in a direction crosswise to the direction of major electric current flow, a plurality of first paths of an electric insulator. The current carrying capacity of the current density distributor in crosswise direction to the major current flow over the current density distributor is smaller than the current carrying capacity in the direction along the major current flow over the current density distributor.

Discover hidden collaborations