Centre National De La Recherche Scientifique

Solvay Sa

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

Universitè De Montpellier

Université De Nantes

Université Montpellier 2 Sciences Et Techniques

Université Blaise Pascal Clermont II

Hutchinson

Université Montpellier II

Jean Le Bideau

Dominique Guyomard

Julio A Abusleme

Bernard Lestriez

Aurélie Guyomard-Lack

Christine Hamon

Aurelie Guyomard-Lack

Marc-David Braida

David Ayme-Perrot

Hélène Rouault

Olivier Pras

Fabrice Leroux

Patrick Soudan

André Vioux

Carole Cerclier

Jean-Baptiste Ducros

Marie-Alexandra Neouze

Nela Buchtova

Philippe-Franck Girard

The invention pertains to a process for the manufacture of a fluoropolymer film, to the fluoropolymer film obtainable therefrom and to use of said fluoropolymer film in electrochemical and photo-electrochemical devices.

Fluoropolymer film

The present invention pertains to an electrode-forming composition, to use of said electrode-forming composition in a process for the manufacture of an electrode, to said electrode and to an electrochemical device comprising said electrode. The electrode-forming composition comprises at least one partially fluorinated fluoropolymer comprising recurring units derived from at least one fluorinated monomer and at least one functional hydrogenated monomer comprising at least one carboxylic acid end group, at least one electro-active compound, at least one liquid medium comprising at least one organic carbonate or at least one ionic liquid, and at least one metal salt.

Electrode-forming composition

The invention pertains to a process for manufacturing a fluoropolynner film comprising a fluoropolymer hybrid organic/inorganic composite, said process comprising the following steps: (i) providing a mixture of: &#x2014;at least one fluoropolymer [polymer (F)]; &#x2014;at least one metal compound [compound (M)] having formula: XAYwherein m is an integer from 1 to 4, A is a metal selected from the group consisting of Si, Ti and Zr, Y is a hydrolysable group and X is a hydrocarbon group, optionally comprising one or more functional groups; &#x2014;a liquid medium consisting essentially of at least one ionic liquid (IL) and, optionally, at least one additive (A); &#x2014;optionally, at least one electrolytic salt (ES); and &#x2014;optionally, at least one organic solvent (S); (ii) hydrolyzing and/or polycondensing said compound (M) to yield a liquid mixture comprising fluoropolymer hybrid organic/inorganic composite comprising inorganic domains and incorporating said liquid medium; (iii) processing a film from the liquid mixture obtained in step (ii); and (iv) drying and then, optionally, curing the film obtained in step (iii) for obtaining the fluoropolymer film. The invention also pertains to the fluoropolymer film obtained from said process and to use of said fluoropolymer film in electrochemical and photo-electrochemical devices.

Method for the preparation of a composite electrode and accumulator or battery including at least one composite electrode, the method includes a step of pouring a medium including at least one ionic liquid, a lithium, sodium or magnesium salt with at least one inorganic molecular precursor or a polymerizable monomer, the medium being in excess, and an in situ polycondensation or polymerization step.

High-energy non-aqueous batteries containing ion-conducting gels, and method for preparing and using same

A method of preparing an ionic conducting gel in solid form, known as ionogel. The method includes a step of mixing an ionic liquid with at least one molecular precursor containing at least one hydrolyzable group, if necessary in the presence of an acid, such as a carboxylic acid. The mixture is subsequently left to stand for one or more days until a gel is formed by polycondensation of the molecular precursor(s). The gel contains the aforementioned ionic liquid and can be set, in particular in transparent monolithic solid form.

Ionic conducting gels, preparation method thereof and use of same

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Nantes, France

Jean Le Bideau