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

Commissariat a L'energie Atomique

Centre National De La Recherche Scientifique

Universite Claude Bernard – Lyon1

Cpe Lyon Fcr

Hakima Mendil

Lionel Picard

Patrice Rannou

Paul-Henri Haumesser

Catherine Santini

Melody Leclere

Laurence Marie Noirez

Gérard Gebel

Patrick Francois Baroni

Sandrine Lyonnard

Emmanuel Billy

Laurent Bernard

Gerard Gebel

Mélody Leclere

Mathias Coudray

Véronique Dufaud

The present invention relates to thermotropic ionic liquid crystal molecules of general formula (I) With Eand E, which may be identical or different, representing, independently of one another, a linear, saturated and unsubstituted Cto Chydrocarbon-based radical, Arepresenting a sulfonate anion or a sulfonylimide anion of formula &#x2014;SO&#x2014;N&#x2014;SOCFwith y being an integer ranging from 0 to 2 and Ca sodium, lithium or potassium ion, most particularly advantageous for their conductivity performance qualities as an electrolyte in particular for lithium batteries.

Electrolytes for electrochemical generator

Thermotropic ionic liquid crystal molecules, comprising a so-called rigid part, a so-called flexible part bonded covalently, directly or via a spacer, to said rigid part, and one or more ionic groups bonded covalently to said rigid part. Said molecules can be used as electrolytes in an electrochemical device, in particular a lithium-ion battery.

Electrolyte for electrochemical generator

Method of determining at least one dynamic characteristic of a sample of a deformable solid or fluid material, comprising: the contacting of said sample () with at least one interaction surface (); the application of a relative movement between said sample () and said interaction surface (); and the measurement () of at least one dynamic or kinematic quantity in respect of the sample () and/or said interaction surface (), wherein said interaction surface () has an intrinsic wettability with respect to the material that is higher than that of metals. Device for implementing this method. According to particular embodiments, said interaction surface () is made of high-density sintered ceramic or made of single crystal silicon or germanium, preferably having a zero open porosity and an arithmetic mean roughness parameter of less than 12.5 &#x3bc;m and preferably between 0.4 and 1.6 &#x3bc;m.

Method and device for determining at least one dynamic property of a deformable solid or fluid material

Growing community of inventors

Vitry sur Seine, France

Hakima Mendil