Centre National De La Recherche Scientifique

Institut Polytechnique De Grenoble

Institut National Polytechnique De Grenoble

Eras-labo

Commissariat a L'energie Atomique

Universite Claude Bernard – Lyon1

UniversitÉ´de Rouen

Batscap

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

Solvay Sa

Blue Solutions

Cristina Iojoiu

Jean-Yves Sanchez

Fannie Alloin

Regis Mercier

France Chabert

Nadia El Kissi

Marc Deschamps

Bernard Langlois

Herve Galiano

Régis Mercier

Yves Piffard

Quang Trong Nguyen

Christophe Chauvin

Elie Paillard

Fabien Toulgoat

Maurice Medebielle

Manuel Marechal

Claire Antonelli

Jean-Ives Sanchez

Mathieu Martinez

Stephane Marais

Dominique Langevin

Sema Karademir

Corinne Chappey

Olesia Danyliv

Amadou Thiam

Yannick Molmeret

Jérémie Salomon

Ionically conductive materials that can be used in electrochemical generators. A new ionically conductive material usable in an electrochemical generator, for example in separators, solid polymer electrolytes or electrodes, has good mechanical properties and good ionic conductivity and is able to prevent dendritic growth in lithium batteries. The material comprises at least one polymer A, different from B, having an ionic conductivity of between 10and 10S/cm, at least one polymer B having mechanical strength characterised by a storage modulus &#x2265;200 MPa and at least one reinforcing filler C.

Ionically conductive material for electrochemical generator and production methods

The invention relates to a process for preparing unipolar cation-conducting ionomers from fluoro ionic monomers, to said unipolar cation-conducting ionomers, to the uses thereof, to an electrolytic composition comprising at least one of said unipolar cation-conducting ionomers and to an electrochemical device comprising at least one of said unipolar cation-conducting ionomers, especially as electrolyte.

Process for preparing unipolar cation-conducting ionomers from difluoro ionic monomers

The present invention relates to a membrane that includes a porous polymer material made of a polyimide with interconnected macropores and impregnated with protic ionic liquid conductors (CLIP), as well as to the method for manufacturing same and to the uses thereof. The membranes of the invention fulfill the need for membranes including CLIPs, which have good proton-conducting properties as well as good physical properties, in particular high thermal and mechanical stability, in addition to a wide range of electrochemical stability.

Proton-conducting composite membrane for fuel cells

The invention relates to a process for preparing aromatic sulfonylimides, to the sulfonylimides obtained, and to the use thereof as salt of an electrolyte. The sulfonylimides correspond to the formula [R&#x2014;SO&#x2014;N&#x2014;SOR']M (I). R&#x2032; is an ArZL- group. R&#x2032; is a perfluoroalkyl group or an ArZL- group. Z is an S, SO or SOgroup. L is a &#x2014;(CF)&#x2014;CFR&#x2014; group. n is 0 or 1; Rrepresents F or a Cto Cperfluoroalkyl group; Ar is an aromatic group. M represents H, an alkali metal cation, an alkaline earth metal cation, a trivalent or tetravalent metal cation, or an organic cation. The process consists in preparing a compound RSO2N(R&#x2032;)SO2R&#x2032; from RSOF, and in replacing the group R&#x2032; by nucleophilic substitution reaction so as to obtain the compound (I), R&#x2032; being a benzyl or trimethylsilyl group.

Aromatic sulfonylimides, preparation thereof and use thereof as electrolyte

The invention relates to a copolymer of ethylene oxide or propylene oxide and at least one substituted oxirane bearing an ionic group. The copolymer is characterized in that its chain comprises repeat units &#x2014;O&#x2014;CH&#x2014;CH(&#x2014;CH&#x2014;O&#x2014;SOLi)&#x2014;, repeat units &#x2014;O&#x2014;CH&#x2014;CHR&#x2014; in which R is H or CH, optionally, repeat units &#x2014;O&#x2014;CH&#x2014;CH(&#x2014;CHR')&#x2014; in which R&#x2032; is a functional group. x

Copolymer of propylene or ethylene oxide and of an oxirane bearing an ionic group

The invention relates to a process for the extrusion of thermoplastic polymers having alkaline ionic groups. The process consists in preparing a mixture composed of a thermoplastic polymer having alkaline ionic groups and a plasticizer, in extruding the mixture obtained to form a film; then in washing the film obtained in aqueous medium to remove said plasticizer(s). The plasticizer is chosen from non-volatile compounds which are stable with respect to the ionic groups of the polymer, which are soluble in water or in solvents that are miscible with water, said plasticizers being chosen from the compounds that react with the ionic group of the polymer via formation of a weak bond of the hydrogen bond-type, and the compounds that react with the ionic group of the polymer via formation of a strong bond, of the ionic bond-type.

Membrane preparation method comprising the extrusion of a thermoplastic polymer bearing alkaline groupings

The invention relates to a process for the extrusion of thermoplastic polymers having acid ionic groups. The process consists in preparing a mixture composed of a thermoplastic polymer having acid ionic groups and a plasticizer, in extruding the mixture obtained to form a film, then in washing the film obtained in aqueous medium to remove said plasticizer(s). The plasticizer is chosen from non-volatile compounds which are stable with respect to the ionic groups of the polymer, which are soluble in water or in solvents that are miscible with water, said plasticizers being chosen from the compounds that react with the ionic group of the polymer via formation of a weak bond of the hydrogen bond-type, and the compounds that react with the ionic group of the polymer via formation of a strong bond, of the ionic bond-type.

Extrusion of a thermoplastic polymer bearing acid ionic groupings

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Grenoble, France

Cristina Iojoiu