Commissariat a L'energie Atomique

Commissariat a L'energie Atomique Et Aux Energies Alternatives

Centre National De La Recherche Scientifique

Societe Bic

Universitè De Montpellier

Intelligent Energy Inc.

Stmicroelectronics(tours) Sas

Trixell

Isorg

Stmicroelectronics (Rousset) Sas

Universite De Montpellier Ii

Commisariat À L'énergie Atomique

Jean-Yves Laurent

Didier Marsacq

Frédéric Gaillard

Paul H Adams

Mohammed Benwadih

Jean Dijon

Frederic Gaillard

Bernard Diem

Marc Plissonnier

Vincent Faucheux

Didier Bloch

Denis Locatelli

Alain Rosenzweig

Philippe Capron

Raphael Salot

Jean-Marie Verilhac

Nathalie Giacometti

Audrey Martinent

Christel Roux

Christine Nayoze

Jean Arroyo

Gilles Delapierre

Marc Zussy

Steve Martin

Claude Chabrol

Nicolas Karst

Karine Lambert

Jean-Sébastien Danel

Raphaël Salot

Mathieu Roy

Simon Charlot

Bruno Valon

Pierre Rohr

Antoine Latour

Jerome Delmas

Pascal Schott

Jérôme Delmas

Jean Olivier Durand

Emeline Berthod

Max Perrin

Christelle Laugier

Jean-Louis O Buffet

Mauricio Schieda

Stephanie Roualdes

Emmanuel Damery

Françis Cardot

Thierry Priem

Corinne Gauthier

Christian Perut

Francis Ternay

Francois DeCrecy

Jean-Luc Rochas

Jean Durand

Stéphanie Roualdes

Julien Routin

Philippe Baclet

The invention relates to a device for detecting a leak in a sealed enclosure, comprising an organic light-emitting diode intended to be placed inside the enclosure; and a device for measuring a value representative of at least one of the following parameters: a) the luminous efficacy of the diode; and b) the impedance of the diode.

Device for detecting a leak in a sealed enclosure

An optoelectronic device includes a stack of layers that are arranged on an electrically insulating substrate, including at least one cathode made of a material of work function &#x3a6;; one electron-collecting layer that is arranged above the cathode and that is made of a material of work function &#x3c6;and of sheet resistance R; and one active layer comprising at least one p-type organic semiconductor the energy level of which is HO1, wherein the work function &#x3c6;of the electron-collecting layer and the energy level HO1 of the active layer form a potential barrier able to block the injection of holes from the cathode into the active layer; and the sheet resistance R of the electron-collecting layer is higher than or equal to 10&#x3a9;.

Organic optoelectronic device, array of such devices and method for producing such arrays

A gas-generating apparatus includes a cartridge including a reservoir having a first reactant and a reaction chamber, and a receiver that can include a flow control device. The receiver is adapted to receive the cartridge and to transport the first reactant to the reaction chamber after connection with the cartridge. The flow control device is adapted to stop the transport of reactant when the pressure in the reaction chamber reaches a predetermined pressure.

Hydrogen generating fuel cell cartridges

An optoelectronic device including a first electrode arranged on a substrate, a second electrode that includes a first surface facing the first electrode, and a semiconductor material layer that is in electric contact with the first and second electrodes. The second electrode includes a side wall that is adjacent to the first surface and is covered with the semiconductor material layer by the insertion of a self-assembled monolayer.

Optoelectronic device having an embedded electrode

A fuel cell comprises at least two current collectors, an electrically insulating separator element and solid electrolyte. Each current collector comprises at least one transverse passage passing through it from a first surface to a second surface and the separator element comprising opposite first and second faces is arranged between the current collectors. A plurality of transverse channels pass through the separator element from the first face to the second face and the ionically conducting solid electrolyte occupies the volume bounded by the channels of the separator element and by the passages of the current collectors. The separator element is formed by a thermoplastic polymer material and hard particles are arranged in the transverse channels.

Fuel cell with current collectors integrated with the solid electrolyte and process for manufacturing such a fuel cell

A hydrogen-air fuel cell having a mobile element capable of, in closed position, covering the cell cathode in substantially tight fashion.

Fuel cell protection device

An electrode for an alkali fuel cell comprises an active layer formed by a bilayer or by a stack of a plurality of bilayers. Each bilayer is composed of a catalytic layer comprising catalyst particles of nanometric size and of a porous layer comprising two opposite faces one of which is in contact with the catalytic layer. The porous layer is made from a porous composite material comprising a hydroxide ion conducting polymer matrix in which a metallic lattice is formed constituting a plurality of electronically conducting paths connecting the two opposite faces of the porous layer. Advantageously, fabrication of such an electrode is obtained by successively performing vacuum deposition of the catalyst particles and vacuum co-deposition of the hydroxide ion conducting polymer and of the metal on a free surface of a support.

Electrode for alkali fuel cell and method for making a fuel cell including at least one step of making such an electrode

Water produced in a fuel cell is managed and/or regulated by an assembly comprising at least one hydrophobic element and a hydrophilic element. The hydrophilic element is in contact with at least one first area of an outer surface of the cathode. The hydrophobic element covers the whole of a face of the hydrophilic element opposite the outer surface of the cathode and comprises at least one through opening releasing an area of said face of the hydrophilic element.

Fuel cell comprising an assembly capable of managing the water generated by said cell

To prevent the liquid electrolyte from penetrating into the porous support while at the same time preserving or increasing the power density of the fuel cell, before the liquid electrolyte is deposited, at least a part of the walls delineating the pores of said support is covered by a film formed by a material presenting a contact angle of more than 90&#xb0; with a drop of said liquid electrolyte. Said film further presents a thickness enabling passage of the reactive fluid in the pores of the support.

Method for fabricating a fuel cell on a porous support

A device for generating gas by placing a liquid reactant in contact with a solid element, including: a liquid reactant tank, a reaction chamber configured to contain the solid element, an injector configured to inject the liquid reactant onto the solid element, and an outlet port configured to collect the gas generated in the reaction chamber, wherein the tank and the reaction chamber are separated in a sealed manner by a mobile wall, the mobile wall including an outlet port for collecting the gas generated in the reaction chamber, and wherein the injector passes through the mobile wall and configured to move into the solid element.

Portable gas generating device and electrical fuel cell power supply comprising such a device

In order to increase the capacity of an 'all-solid' type micro-battery, the layer of electrolyte is structured: transversing cavities are created in the flat layer, advantageously at the level of patches of collector material, then filled by anode or cathode material.

Structured electrolyte for micro-battery

Adjacent individual cells of a fuel cell are connected in series by intermediate connecting parts. Each connecting part is formed by a branch made from an electrically conducting material and extending the first current collector of a cell perpendicularly and connected to the second current collector of the adjacent cell. Each first current collector is moreover formed by an electrically insulating porous matrix incorporating said electrically conducting material, and the first current collectors of two adjacent cells are separated by an area of electrically insulating porous material, said electrically insulating porous material being identical to that forming the porous matrix of said first current collectors. Series connection between the individual cells of such a fuel cell is thereby easy and quick to implement.

Fuel cell comprising a plurality of individual cells connected in series by current collectors

A microbattery has a support having a front face, a rear face, first and second current collectors arranged on the front face. A stack including a cathode and an anode separated by an electrolyte is arranged on the current collectors. The anode and cathode respectively contact the first and second current collectors. A protective layer covers the stack. The microbattery has connections in contact with the first and second current collectors, passing through the support from the front face to the rear face. The stack substantially covers of the front face of the support. A method for producing the mircobattery includes etching cavities, in the front face of the support, having a depth that is smaller than the thickness of the support, filing of the cavities with a conducting material and removing a layer of the rear face of the support to uncover the conducting material in the cavities.

Microbattery comprising through-connections and production method thereof

A microcomponent including: an electrochemical storage source; a first substrate including a first contact face; a second substrate including a second contact face; 'at least one internal cavity formed from a first cavity recessed into the first contact face of the first substrate, or from a second cavity recessed into the second contact face of the second substrate, or from the first cavity recessed into the first contact face of the first substrate and the second cavity recessed into the second contact face of the second substrate, wherein the two substrates are integrated together via their respective contact faces and a sealing member, and said internal cavity contains the electrochemical storage source; and electrical connections between the electrochemical storage source and an external environment.

Integrated microcomponent combining energy recovery and storage functions

A device for generating hydrogen by hydrolysis of a hydride comprising a reactor containing the hydride in solid form, in the divided state or not, and comprising at least one orifice for removing the hydrogen produced; means for releasing the water required for the hydrolysis reaction; and at least one envelope suitable for isolating the hydride from the water required for the hydrolysis reaction, the envelope being made from a consumable material. According to the present invention, the envelope is suitable for contacting the water with the hydride in a site capable of serving as the seat of the hydrolysis reaction and of moving in the reactor as the material constituting the envelope is consumed by the hydrolysis reaction products.

Hydrogen generator and fuel cell using same

Growing community of inventors

Domene, France

Jean-Yves Laurent