Saft

Centre National De La Recherche Scientifique

Umicore

Saft Groupe Sa

Kemijski Institut

Universite Paris Xii Val De Marne

Université De Paris Xii Val De Marne

Thierry Hezeque

Patrick Bernard

Christian Jordy

Georges Caillon

Florent Fischer

Claudette Audry

Stephane Levasseur

Michel Latroche

Nina V Kosova

Evgeniya T Devyatkina

Fermin Cuevas

Robert Dominko

Laura Maria Para

Cecilia Andrea Calderon

An electrochemical cell of the lithium/sulfur type comprising:

Lithium-sulfur battery with improved performances

A lithium/sulfur electrochemical element () comprising: a cathode () comprising: i) carbon having a porous structure () comprising pores with a mean diameter less than or equal to 6 nm; ii) sulfur having a degree of oxidation between 0 and −2 in the pores of the carbon; b) an electrolyte comprising: i) at least one organic solvent which is a carbonate; ii) one or more salts, at least one salt being lithium bis(fluorosulfonyl)imide; c) an anode () comprising lithium metal or a metallic alloy of lithium. Such an element provides increased safety of use because it limits the quantity of hydrogen sulfide that can be emitted in the event of an electrolyte leak or in the event of exposure of an electrode of the element to water.

Lithium/sulphur electrochemical cell

Positive electrode material for lithium-ion battery

An alloy comprising tin, silicon and carbon, and containing a crystalline M-Sn phase, M being an inert metal. An alloy comprising tin and silicon, comprising: A manufacturing process for this alloy.

Active material composition for the negative electrode of a lithium-ion accumulator

Growing community of inventors

Aubie Espessas, France

Thierry Hezeque