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US 11,699,781 B2Granted
Electrode coated with a film obtained from an aqueous solution comprising a water-soluble binder, production method thereof and uses of same
AssigneeHydro-Quebec
InventorsKarim Zaghib, Michel Armand, Abdelbast Guerfi, Michel Perrier, Elisabeth Dupuis, Patrick Charest
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Abstract
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.
Claims22
A process for preparing an electrochemical separator comprising spreading an aqueous solution on a support, the aqueous solution comprising:
- at least one water soluble binder;
- and
- at least one water soluble thickening agent, wherein the water soluble thickening agent is selected form the group consisting of natural celluloses, modified celluloses, natural polysaccharides and modified polysaccharides,
- wherein the aqueous solution is essentially free of active materials and carbon, and
- wherein the support comprises at least one metal.
2 more elements
Dependencies are inferred from the claim text.