Centre National De La Recherche Scientifique

Université De Nantes

Blue Solutions

Batscap

Solvay Sa

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

Commissariat a L'energie Atomique

Umicore

Institut National De La Recherche Scientifique

Umicore Korea, Ltd.

Université Montpellier 2 Sciences Et Techniques

Université De Picardie Jules Verne

Electricite De France

Dominique Guyomard

Bernard Lestriez

Joël Gaubicher

Marc Deschamps

Matthieu Dubarry

Margaud Lecuyer

Jean Le Bideau

Julio A Abusleme

Philippe Poizot

Aurélie Guyomard-Lack

Benoit Morel

Christine Hamon

Patrick Soudan

Marc-David Braida

Hélène Rouault

Stéphane Lascaud

Olivier Pras

Séverine Jouanneau-Si Larbi

François Tanguy

Willy Porcher

Philippe J Moreau

Thierry Brousse

Vincent Bodenez

Francois Tanguy

Jean-Pierre Bonnet

Philippe Moreau

Delphine Guy

Pablo Jimenez Manero

Séverine Jouanneau

Annie Le Gal La Salle

Alain Verbaere

Nelly Bourgeon

Lenaic Madec

Audrey Bouvree

Philippe Blanchard

Nathalie Delpuech

Driss Mazouzi

Lionel Roue

Jean-Baptiste Ducros

Aurelie Guyomard-Lack

Severine Jouanneau

Lénaïc Madec

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 present invention relates to a new lithium-doped Pernigraniline-based material, a method for the preparation thereof, its use in various applications, an electrode comprising said lithium-doped Pernigraniline-based material and its preparation method, a membrane comprising said lithium-doped Pernigraniline-based material and its preparation method, and an electrochemical storage system comprising said electrode.

Lithium-doped pernigraniline-based materials

The present invention relates to the field of organic lithium batteries having high energy and power densities. In particular, the present invention relates to an organic lithium battery comprising a positive electrode based on redox organic compounds and a porous separator made of biaxially oriented polypropylene, and to its process of manufacture.

Organic lithium battery

Organic lithium batteries are provided having high energy and power densities with a positive electrode based on redox organic compounds and an electrolyte having a high concentration of lithium salt.

The present invention concerns a positive electrode including a composite material including sulfur and carbon as an active material and its method of manufacture, a lithium-sulfur battery including such a positive electrode and its method of manufacture.

Lithium-sulfur battery

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.

The present invention relates to the field of lithium-sulphur batteries having high energy and power densities. In particular the present invention relates to a lithium-sulphur battery comprising a porous separator made of biaxially oriented polypropylene and to its process of manufacture.

Lithium-sulphur battery

The present invention concerns a composite positive electrode for a lithium battery, in particular a lithium-metal polymer (LMP) battery, the use of same for producing an LMP battery and an LMP battery comprising same.

Positive electrode for a lithium battery

The invention relates to compounds comprising a redox group, to the use thereof as an additive to an electrolyte composition, to an electrolyte composition including such an additive, and to electrochemical systems including such an electrolyte composition, in particular lithium or sodium batteries and supercapacitors having a double electric layer.

Compounds having a redox group, use thereof as an electrolyte additive, electrolyte composition, and electrochemical systems containing same

A rechargeable battery comprising a positive electrode, a negative electrode and an electrolyte, wherein: &#x2014;the electrolyte comprises a SEI film-forming agent, and&#x2014;the negative electrode comprises a micrometric Si based active material, a polymeric binder material and a conductive agent, wherein at least part of the surface of the Si based active material consists of Si&#x2014;OCO&#x2014;R groups, Si being part of the active material, and R being the polymeric chain of the binder material.

Low cost Si-based negative electrodes with enhanced cycling performance

The invention relates to a lithium vanadium oxide which corresponds to the formula LiVO(0.1&#x2266;&#x3b1;&#x2266;0.25). It is composed of agglomerates of small needles having a length l from 400 to 1000 nm, a width w such that 10&#x3c;l/w&#x3c;100 and a thickness t such that 10&#x3c;l/t&#x3c;100. It is obtained by a process consisting in preparing a precursor gel by bringing &#x3b1;-VOand a Li precursor into contact in amounts such that the ratio of the concentrations [VO]/[Li] is between 1.15 and 1.5 and in subjecting the gel to a heat treatment comprising a first stage at 80&#xb0; C.-150&#xb0; C. for 3 h to 15 days and a second stage between 250&#xb0; C. and 350&#xb0; C. for 4 min to 1 hour, under a nitrogen or argon atmosphere. It is useful as an active material of a positive electrode.

[object Object]

A composite electrode includes a mixture of active matter (AM) particles and EC material particles generating an electronic conductivity, the mixture being supported by an electrical lead forming a DC current collector. The electrode can be manufactured by a method which consists of modifying the AM particles and the EC particles so as to react with each other and with the material of the collector in order to form covalent and electrostatic bonds between said particles, as well as between the particles and the current collector, and then placing the different constituents in contact.

Electrode composite

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

The invention relates to a method for producing a material for a composite electrode. The method is intended for the preparation of a composite material consisting of an active electrode material M1, a material C1 conferring electronic conductivity, an organic binder and a salt, said binder comprising a polymer P1 having an O, N, P or S heteroatom mass content of 15% or higher, a polymer P2 having an O, N, P or S heteroatom mass content of 5% or less, and a nonvolatile liquid organic solvent S1. It includes a step consisting in preparing a viscous solution containing at least one polymer P1, at least one polymer P2, a material C1, an active electrode material M1 and at least one nonvolatile solvent S1, and a step consisting in forming a film from the viscous solution obtained.

Method of producing electrode composite material

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Sautron, France

Dominique Guyomard