Hydro-quebec

Elisabeth Dupuis

Karim Zaghib

Abdelbast Guerfi

Patrick Charest

Michel Perrier

Michel Bernard Armand

Michel Armand

Michel Gauthier

Simon Besner

Hossein Maleki

Andre Belanger

Jean-Fran&ccedil;ois Magnan

Francois Allaire

Andr&eacute; B&eacute;langer

Robert J Selman

A method of preparing an electrochemical electrode which is partially or totally covered with a film that is obtained by spreading an aqueous solution comprising a water-soluble binder over the electrode and subsequently drying same. The production cost of the electrodes thus obtained is reduced and the surface porosity thereof is associated with desirable resistance values.

Electrode coated with a film obtained from an aqueous solution comprising a water-soluble binder, production method thereof and uses of same

The invention relates to a method of preparing an electrochemical electrode which is partially or totally covered with a film that is obtained by spreading an aqueous solution comprising a water-soluble binder over the electrode and subsequently drying same. The production cost of the electrodes thus obtained is reduced and the surface porosity thereof is associated with desirable resistance values.

A composite of particles comprising a high crystallinity carbon and a low crystallinity carbon, wherein the low crystallinity carbon exhibits an average lattice constant d=(002) of 0.350 nm or more and a crystallite size L=(002) in the diffraction of C axis of 25 nm or less, as characterized by wide-angle X ray diffraction measurements, the high crystallinity carbon exhibits an average lattice constant d=(002) of 0.338 nm or less and a crystallinity size L=(002) in the diffraction of C axis of 40 nm or more, as characterized by wide-angle X-ray diffraction measurements, the high crystallinity carbon having at least 50% of its external surface embedded within or surrounded by a matrix of low crystallinity carbon.

Carbon-carbon composite particles, their preparation and use therefore as negative electrode for li-ion batteries

Polymer electrolyte for an electrochemical generator based on at least a four branched polymer, at least a poly(vinylyldienefluoride), a poly(vinyldiene fluoro-co-hexafluoropropene copolymer), a poly(tetrafluoroethylene), a poly(ethylene-co-propylene-co-5-methylene-2-norbornene) or an ethylene propylene-diene copolymer, a polyol, a poly(methylmethacrylate, a poly(acrylonitrile), SiOAlO, or nano TiOnon coated or coated with an organic material. This electrolyte allows to prepare electrolytic compositions that can be used in high performance electrochemical devices.

Polymer electrolyte with high stability, its use in electrochemical systems

The present invention concerns a composite electrode for an electrochemical cell, an electrochemical cell comprising the composite electrode, a process for preparing the composite electrode, and a process for the preparation of a half-cell comprising a porous mineral composite-porous mineral separator sub-network.

Composite coating LiPO3

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McMasterville, Canada

Elisabeth Dupuis