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

Renault S.a.s.

Matthieu Le Digabel

Stéphane Cadra

Hervé Galiano

Agnès Biller

Agnés Biller

Jonathan Szymczak

Nelly Penot

Jean Frédéric Martin

Christophe Dudezert

Electrolytes comprising at least one lithium salt and at least two ionic liquids, at least one of which is an ionic liquid resulting from the association of at least one cation complying with the following formula (I): In which: Ris an acyclic hydrocarbon group; n is an integer ranging from 0 to 3; m is an integer ranging from 1 to 4; and at least one Y anion.

Ionic liquid-based electrolytes for use in electrochemical storage devices

A supercapacitor comprising at least one cell formed of two electrodes of opposite polarity. The cell is formed from a positive electrode and a negative electrode made of activated carbon, between which an electrolyte composition is arranged comprising at least one nitrile solvent, at least one salt and also comprising at least one additive from the family of phosphazenes having at least one fluorine atom. One of the compositions comprises acetonitrile, a tetramethylammonium tetrafluoroborate salt and an additive, hexafluorocyclotriphosphazene at a concentration of 1 to 10%.

Supercapacitor comprising an electrolyte composition comprising an additive from the family of fluorinated phosphazenes

Growing community of inventors

Monts, France

Matthieu Le Digabel