Hydro-quebec

Catherine Gagnon

Karim Zaghib

Abdelbast Guerfi

Michel Bernard Armand

Jean-Christophe Daigle

Julie Trottier

Francis Barray

Matjaz Kozelj

Chisu Kim

Gilles Lajoie

Sergey Krachkovskiy

Benoît Fleutot

David Rozon

Pierre-Michel Jalbert

Basile Commarieu

Alexis Perea

Steve Duchesne

Marc-André Girard

Fabien Nassoy

The present technology relates to inorganic compounds having an argyrodite-type structure based on an alkali metal obtained by a preparation process comprising a step of grinding the sulfide of the alkali metal, the sulfate of the alkali metal, phosphorus pentasulfide and a halide of the alkali metal. Also described are electrode materials, electrodes, electrolytes comprising said inorganic compound having an argyrodite-type structure and their uses in electrochemical cells, for example, in electrochemical accumulators, particularly in all-solid-state batteries.

Inorganic compounds having an argyrodite-type structure, their preparation processes and their uses in electrochemical applications

The present technology relates to a polymer comprising at least one ester repeating unit and one ether repeating unit for use in an electrochemical cell, particularly in electrochemical accumulators such as lithium batteries, sodium batteries, potassium batteries and lithium-ion batteries. More specifically, the use of this polymer as a solid polymer electrolyte (SPE), as a matrix for forming gel electrolytes, or as a binder in an electrode material are also contemplated.

Copolymers of ester and ether units, processes for producing same and uses thereof

Here are described processes for the preparation of sulfamic acid derivatives, for instance, halogenated derivatives and their metallic or organic salts. The present document also describes the sulfamic acid derivatives thus produced and to their uses, for instance, in electrolyte compositions for electrochemical applications.

Sulfamic acid derivatives and processes for their preparation

All-solid-state lithium-sulfur electrochemical cells and production methods thereof are described. The Li&#x2014;S electrochemical cells comprise at least one multilayer component which comprises an ion-conductive solid electrolyte film, a positive electrode film containing a sulfur composite, and a negative electrode film containing lithium. Positive electrodes films, prefabricated electrolyte-positive electrode elements, their uses as well as methods of their production are also described.

All-solid-state lithium-sulfur polymer electrochemical cells and production methods thereof

Growing community of inventors

Québec, Canada

Catherine Gagnon