Hydro-quebec

Centre National De La Recherche Scientifique

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

Institut National Polytechnique De Grenoble

Batscap

Rhodia Chimie

Universite Claude Bernard – Lyon1

Eras-labo

Université Grenoble Alpes

Université Joseph Fourier

Institut Polytechnique De Grenoble

Blue Solutions

Westfalische Wilhelms-universität Münster

Fannie Alloin

Jean-Yves Sanchez

Michel Armand

Marc Deschamps

Cristina Iojoiu

Christophe Chauvin

Michel Bernard Armand

Bernard Langlois

Stefano Passerini

Sébastien Patoux

Rémi Vincent

Laureline Crepel

Lucile Gambut-Garel

Renaud Bouchet

Céline Barchasz

Paul-Etienne Harvey

Jean-Claude Lepretre

Lise Daniel

Dominic Bresser

Marco Bolloli

Michel Paillet

Carroll Vergelati

Jacqueline Masson

Jean-Yves Cavaille

Alain Dufresne

Fabien Toulgoat

My Ahmed Said Azizi Samir

Maurice Medebielle

Elie Paillard

Sébastien Martinet

Jean-Yves Le Chaboud Sanchez

Azizi Samir Appt 3 No 003 My Ahmed Said

Lauréline Marchal

Valentin Vinci

Christina Iojoiu

My Ahmed Azizi Samir

Julian Kalhoff

Alice Robba

An electrochemical generator includes a first electrode covered by a passivation layer having a compound formed by repetition of a pattern of the following formula (7): in which: n is an integer comprised between 1 and 10, preferably between 1 and 4; Rand Rare identical or different and chosen independently from the group formed by &#x2014;CH&#x2014;, a cyclic or acyclic, linear or branched alkyl chain; Ris chosen from the group formed by &#x2014;CH, a cyclic or acyclic, linear or branched alkyl chain, and a group of the following formula (8): in which: N is a mono or polycyclic, aromatic hydrocarbonated group chosen from the group formed by phenyl, aryl groups, condensed polyaromatic groups, which may be substituted;

Electrochemical generator and method of producing such a generator

A film made of a fluorinated polymer of the polyvinylidene fluoride type having suitable properties for use as a lithium storage battery separator is produced using a phase inversion technique in which a solution containing the fluorinated polymer is brought into the presence of an atmosphere laden with water vapor to precipitate the fluorinated polymer. The fluorinated polymer can be precipitated by placing the support on which the solution is deposited, in which the fluorinated polymer has been previously dissolved, in an enclosure containing an atmosphere laden with water vapor and thermostatically regulated to a temperature comprised between 30&#xb0; C. and 70&#xb0; C. The relative humidity content during precipitation of the fluorinated polymer is advantageously between about 60% and about 98%.

Method of forming a film made of a fluoropolymer of the polyvinylidene fluoride type that can be used as a separator for a lithium battery

The invention relates to a diazonium aryl salt devoid of hydroxyl functions of the following general formula (1):XN&#x2261;N-A-R&#x2014;(OR)&#x2014;O&#x2014;R-A'-N&#x2261;NX&#x2003;&#x2003;(1)in which: n is in a range of from 1 to 10, preferably from 1 to 4, Xrepresents a counter-ion of the diazonium cation selected from the group consisting of halogenides, BF&#x2014;, NO&#x2014;, HSO&#x2014;, PF&#x2014;, CHCOO&#x2014;, N(SOCF)&#x2014;, CFSO&#x2014;, CHSO&#x2014;, CFCOO&#x2014;, (CHO)(H)PO&#x2014;, and N(CN)&#x2014;;R, Rand Rare identical or different and are independently selected from the group consisting of &#x2014;CH&#x2014;, a cyclic alkyl group, an acyclic alkyl group, a linear alkyl group, and a branched alkyl group; andA and A&#x2032; are identical or different and independently represent a mono or polycyclic, aromatic hydrocarbonated group chosen from the group formed by phenyl, aryl groups, condensed polyaromatic groups, which may be substituted.

Aryl diazonium salt and use in an electrolytic solution of an electrochemical generator

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 solid ionic conducting material which can be used as an electrolyte or as a component of a composite electrode. The material comprises a polymer matrix, at least one ionic species and at least one reinforcing agent. The polymer matrix is a solvating polymer optionally having a polar character, a non-solvating polymer carrying acidic ionic groups, or a mixture of a solvating or non-solvating polymer and an aprotic polar liquid. The ionic species is an ionic compound selected from salts and acids, said compound being in solution in the polymer matrix, or an anionic or cationic ionic group fixed by covalent bonding on the polymer, or a combination of the two. The reinforcing agent is a cellulosic material or a chitin.

Reinforced ionic conducting material, use thereof in electrodes and electrolytes

The invention relates to an ion-conducting material containing an oligoether sulfate. The material comprises an ionic compound dissolved in a solvating polymer. The ionic compound is a mixture of a lithium bis(trifluoromethanesulfonyl)imide and of at least one lithium oligoether sulfate chosen from the lithium oligoether monosulfates corresponding to the formula R&#x2014;[O&#x2014;CH&#x2014;CH)]&#x2014;O&#x2014;SOLi(I) in which R is a group CHwith 1&#x2266;m&#x2266;4 and 2&#x2266;n&#x2266;17, and the lithium oligoether disulfates corresponding to the formula LiOSO&#x2014;O&#x2014;CH&#x2014;[CH&#x2014;O&#x2014;CH]&#x2014;CH&#x2014;O&#x2014;SO&#x2014;OLi(II) in which 3&#x2266;p&#x2266;45; the overall ratio O/Liis less than or equal to 40, Orepresenting the total number of O atoms provided by the solvating polymer and by the oligoether; the content of LiTFSI is such that the O/LiTFSI ratio is greater than or equal to 20.

Ionic conducting material containing an oligoether sulphate

The field of the present invention relates to the field of batteries and of polymer electrolytes for batteries and more particularly to the field of lithium batteries. The invention relates to a composition which can be polymerized and/or crosslinked photochemically or under an electron beam for a battery electrolyte comprising:

Cross-linkable composition for a battery electrolyte

The invention concerns a copolymer of ethylene oxide and at least one substituted oxirane carrying a cross-linkable function. The copolymer comprises ethylene oxide, &#x2014;O&#x2014;CH&#x2014;CHR&#x2014; units in which R is a substituent containing a reactive function which is cross-linkable by free radical process, R may be different from one unit to the other, and possibly &#x2014;O&#x2014;CH&#x2014;CHR'&#x2014; units in which R&#x2032; is a substituent containing no reactive function which is cross-linkable by means of a free radical process, R&#x2032; may be different from one unit to the other. It is characterized by an excellent polymolecularity index I=Mw/Mn and a statistical distribution of the different monomer units. The copolymer is prepared by an anionic copolymerization process. The copolymer is useful for preparing a solid electrolyte having good mechanical properties, a good cationic conductivity and a good chemical compatibility with the electrodes of a generator operating with alkali metals such as lithium and sodium.

Copolymer of ethylene oxide and at least one substituted oxirane carrying a cross-linkable function, process for preparation thereof and use thereof for producing materials with ionic conduction

The invention concerns a copolymer of ethylene oxide and at least one substituted oxirane carrying a cross-linkable function. The copolymer comprises ethylene oxide, &#x2014;O&#x2014;CH&#x2014;CHR&#x2014; units in which R is a substituent containing a reactive function which is cross-linkable by free radical process, and possibly &#x2014;O&#x2014;CH&#x2014;CHR'&#x2014; units in which R&#x2032; is a substituent containing no reactive function which is cross-linkable by means of a free radical process, It is characterized by an excellent polydispersity index I=M/Mn and a random distribution of the different monomer units. The copolymer is prepared by an anionic copolymerization process. The copolymer is useful for preparing a solid electrolyte having good mechanical properties, a good cationic conductivity and a good chemical compatibility with the electrodes of a generator operating with alkali metals such as lithium and sodium.

Copolymer of ethylene oxide and at least one substituted oxirane carrying a cross-linkable function, process for preparation thereof, and use thereof for producing ionically conductive materials

Process for the preparation of poly(oxyalkylene) terpolymer by

Ionically conductive material having a block copolymer as the solvent

The invention relates to copolymers, a process for preparing them and their use for the production of ionically conductive materials. The copolymers consist of identical or different organic blocks A which cannot be crosslinked by a radical route or by a Diels-Alder reaction, each of which has a valency i such that 1.ltoreq.i.ltoreq.6, and identical or different blocks Z(CH.sub.2).sub.j, in each of which Z denotes an organic radical which has a valency j such that 1.ltoreq.j.ltoreq.6, the radicals Z additionally containing at least one functional group permitting crosslinking by a radical route or by a Diels-Alder reaction; each block being joined to at least one other block by a functional group Y, the functional group Y being an ether functional group or a secondary or tertiary amine functional group. They are obtained by polycondensation of A(YH); monomers and Z(CH.sub.2 X).sub.j monomers, wherein Y is a leaving group. They are useful in the production of ionically conductive materials.

Crosslinkable copolymers obtained by polycondensation and ionically

The invention relates to copolymers, a process for preparing them and their use for the production of ionically conductive materials. The copolymers consist of identical or different organic blocks A which cannot be crosslinked by a radical route or by a Diels-Alder reaction, each of which has a valency i such that 1.ltoreq.i.ltoreq.6, and identical or different blocks Z(CH.sub.2).sub.j, in each of which Z denotes an organic radical which has a valency j such that 1.ltoreq.j.ltoreq.6, the radicals Z additionally containing at least one functional group permitting crosslinking by a radical route or by a Diels-Alder reaction; each block being joined to at least one other block by a functional group Y, the functional group Y being an ether functional group or a secondary or tertiary amine functional group. They are obtained by polycondensation of HYAYH monomers and Z(CH.sub.2 X).sub.j monomers, wherein Y is a leaving group. They are useful in the production of ionically conductive materials.

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Vizille, France

Fannie Alloin