The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 20, 2020
Filed:
Jul. 21, 2017
Hydro-québec, Montreal, Québec, CA;
Transfert Plus, S.e.c., Montéal, Québec, CA;
Nicolas Delaporte, Montréal, CA;
Diby Benjamin Ossonon, Montréal, CA;
Karim Zaghib, Longueuil, CA;
Daniel Belanger, Saint-Hubert, CA;
HYDRO-QUEBEC, Montreal, Quebec, CA;
TRANSFERT PLUS, S.E.C., Montreal, Quebec, CA;
Abstract
A process for recycling an electrode material comprising graphene and an electrochemically active material is described. The process comprises a step of adding, in any order, water and a non-miscible solvent to the electrode material, thereby forming a biphasic system comprising an organic phase and an aqueous phase; and a step of separating and filtering the organic phase to recover graphene. The process optionally comprises additional steps of washing, drying, and/or thermally treating. Also described are electrodes including the recycled graphene, as well as the electrochemical cells and their uses.