Commissariat &#xc0; L'&#xc9;nergie Atomique Et Aux &#xc9;nergies Alternatives

Centre National De La Recherche Scientifique

Université Grenoble Alpes

Institut Polytechnique De Grenoble

Rémi Vincent

Jean-Philippe Poirot-Crouvezier

Fannie Alloin

Patrick Le Gallo

Mathias Gerard

Alejandro Franco

Renaud Bouchet

Denis Tremblay

Julien Tard

Eric Mayousse

Benoît Barthe

Céline Barchasz

Joël Pauchet

Fabrice Micoud

Christophe Robin

Ludovic Rouillon

Pascal Schott

Benoît Chavillon

Sylvie Escribano

Marco Bolloli

Maxime Schroder

Didier Buzon

Fredy-Intelligent Nandjou Dongmeza

Jean-Noel Carminati

Guillaume Krosnicki

Laure Guetaz

Ramon Naiff Da Fonseca

Lara Jabbour

Jérémie Salomon

Lionel Blanc

Gilles Icart

Maxime Hubert

Laëtitia Dubau

Sébastien Rosini

Pierre-Xavier Thivel

Fabien Claudel

Alice Robba

Claire Deilhes

Christophe Vincens

Remy Panariello

Juliette Charbonnel

Bertrand Hladys

Baptiste Verdin

Lenka Svecova

Raphaël Chattot

Lucien Duclos

Jérémy Allix

Jean-Sébastien Roch

A system for extinguishing a fire and/or preventing a fire from starting or restarting in an electric vehicle having a module or a battery pack with a plurality of electrochemical batteries, in particular metal-ion batteries, includes a self-supporting inflatable structure, the shape and dimensions of which when deployed are configured to lift the electric vehicle off the ground, create a liner between the ground and the electric vehicle, and create a peripheral barrier in continuity with the liner, which is closed upon itself, around the electric vehicle. The system also includes a liquid supply device for filling, at least partially, the sealed volume delimited inside the peripheral barrier and by the liner, so as to immerse at least the module or battery pack in the liquid.

System for extinguishing a fire and / or preventing a fire from starting or restarting in an electric vehicle, associated method of operation comprising a prior step of lifting the vehicle off the ground

A device triggers thermal runaway of an electrochemical accumulator, including a flexible package that contains at least once electrochemical cell. A part of the current collectors that form the output terminals of the accumulator pass through the flexible package. The device includes two electrical current conducting elements, each respectively in electrical contact with the exterior of a part of a metal layer of the flexible package or of the metal housing, and an electrical power supply independent from the accumulator. The electrical power supply is designed to drive a current, referred to as a heating current, between the two elements so as to heat up the flexible package or the housing of the accumulator by Joule effect.

Device for triggering thermal runaway of an electrochemical accumulator, notably of a metal-ion accumulator and associated method

The invention relates to a method for preparing a positive electrode for a lithium-sulfur battery, comprising the following steps:

Method for manufacturing an electrode for a lithium-sulfur battery having a large active surface area

A method of attachment between a metal collector and a carbon felt of a battery includes the steps of impregnation of the pores of the carbon felt with a mixture of metal powder and of a binder, locally performed in at least one predetermined area of the carbon felt; and spot welding between the metal collector and the carbon felt impregnated with the metal powder, performed at the level of said at least one predetermined area.

Method for attachment between a metal collector and a carbon felt of a battery and battery produced by the method

A process for manufacturing a catalytic electrode includes depositing an electrocatalytic ink on a carrier, wherein the electrocatalytic ink includes an electrocatalytic material and a product polymerizable into a protonically conductive polymer. The process also includes solidifying the electrocatalytic ink so as to form an electrode wherein the composition of the product polymerizable into a protonically conductive polymer and its proportion in the ink is defined so that the electrode formed has a breaking strength greater than 1 MPa. The process further includes separating the electrode formed from the carrier.

Porous electrode for proton-exchange membrane

An active layer for a proton-exchange membrane fuel cell (PEMFC) including at least two perfluorosulfonate ionomers.

Formulation of an active layer having improved performances

A membrane-electrode assembly (MEA) including a membrane and two electrodes, and further at least one layer located at the interface of the membrane and of an electrode. The layer contains a proton conductive polymer which has a glass transition temperature lower than or equal to, advantageously lower than, that of the proton conductive polymer contained in the membrane.

Membrane-electrodes assembly for proton exchange fuel cells (PEMFC), and manufacturing method

A fuel cell stack includes first and second membrane electrode assemblies and a metal bipolar plate interposed between the first and second membrane electrode assemblies. The bipolar plate comprises first and second metal sheets facing the first and second membrane electrode assemblies and is securely fastened by welds. There is a gas diffusion layer interposed and compressed between the first membrane electrode assembly and the bipolar plate. In the absence of compression on the gas diffusion layer, regions of the gas diffusion layer surrounding the welds have a thickness smaller by at least 5 &#x3bc;m relative to the average thickness of the gas diffusion layer. This is done so that the contact pressure of the gas diffusion layer with the bipolar plate in the area of the welds is lower than its average contact pressure with the bipolar plate.

Fuel cell limiting the phenomenon of corrosion

A metallic plate for a proton-exchange membrane fuel cell (PEMFC) having, on at least one of its surfaces, a coating including: conductive material fillers; a polymer used as a binder; and a metal cation absorbing compound.

Metallic bipolar plate for a proton-exchange membrane fuel cell

A method for manufacturing a membrane/electrode assembly, including depositing an electrocatalyst ink on one face of a support so as to form an electrode on the support and fixedly attaching the support and the electrode formed on a proton-exchange membrane by adhesion. The method also includes withdrawing a part of the support so as to uncover at least one median part of the formed electrode.

Method for manufacturing an electrode/proton-exchange membrane assembly

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Grenoble, France

Rémi Vincent