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1. WO2021234296 - DEVICE FOR PRODUCING ENERGY BY SALINITY GRADIENT THROUGH A MEMBRANE BASED ON CROSSLINKED CELLULOSE FIBRES

Publication Number WO/2021/234296
Publication Date 25.11.2021
International Application No. PCT/FR2021/050894
International Filing Date 19.05.2021
IPC
H01M 8/22 2006.1
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
8Fuel cells; Manufacture thereof
22Fuel cells in which the fuel is based on materials comprising carbon or oxygen or hydrogen and other elements; Fuel cells in which the fuel is based on materials comprising only elements other than carbon, oxygen or hydrogen
CPC
H01M 8/227
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
8Fuel cells; Manufacture thereof
22Fuel cells in which the fuel is based on materials comprising carbon or oxygen or hydrogen and other elements; Fuel cells in which the fuel is based on materials comprising only elements other than carbon, oxygen or hydrogen
227Dialytic cells or batteries; Reverse electrodialysis cells or batteries
Y02E 60/50
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
60Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
30Hydrogen technology
50Fuel cells
Applicants
  • SWEETCH ENERGY [FR]/[FR]
Inventors
  • MOTTET, Bruno
  • LABORIE, Benoit
  • KECHADI, Mohammed
Agents
  • REGIMBEAU
Priority Data
FR200521120.05.2020FR
Publication Language French (fr)
Filing Language French (FR)
Designated States
Title
(EN) DEVICE FOR PRODUCING ENERGY BY SALINITY GRADIENT THROUGH A MEMBRANE BASED ON CROSSLINKED CELLULOSE FIBRES
(FR) DISPOSITIF DE PRODUCTION D'ENERGIE PAR GRADIENT DE SALINITE À TRAVERS UNE MEMBRANE À BASE DE FIBRES DE CELLULOSE RETICULÉES
Abstract
(EN) The present invention concerns a device for producing electrical energy, comprising: a) a first reservoir A (20A) for receiving an electrolyte solution (22A) having a concentration CA of a solute and comprising an electrode (30A) in contact with the electrolyte solution having concentration CA; b) a second reservoir B (20B) for receiving an electrolyte solution (22B) having a concentration CB of one and the same solute, CB being lower than CA, and comprising an electrode (30B) in contact with the electrolyte solution having concentration CB; c) a membrane (10) separating the two reservoirs, said membrane comprising pores allowing the electrolytes to diffuse from reservoir A to reservoir B through said pore or pores; and d) a device (32) capable of supplying the electrical energy generated by the potential difference existing between the two electrodes, characterized in that the membrane comprises at least one layer formed of a cellulosic material comprising a network of crosslinked cellulose nanofibres and/or microfibres.
(FR) La présente invention concerne un dispositif pour la production d'énergie électrique comprenant : a) un premier réservoir A (20A) destiné à recevoir une solution électrolytique (22A) de concentration CA en un soluté et comprenant une électrode (30A) en contact avec la solution électrolytique de concentration CA; b) un deuxième réservoir B (20B) destiné à recevoir une solution électrolytique (22B) de concentration CB en un même soluté, CB étant inférieure à CA, et comprenant une électrode (30B) en contact avec la solution électrolytique de concentration CB; c) une membrane (10) séparant les deux réservoirs, ladite membrane comprenant des pores permettant la diffusion des électrolytes du réservoir A vers le réservoir B à travers le ou lesdits pores; et d) un dispositif (32) permettant de fournir l'énergie électrique générée par le différentiel de potentiel existant entre les deux électrodes, caractérisé en ce que la membrane comprend au moins une couche formée d'un matériau cellulosique comprenant un réseau de nanofibres et/ou de microfibres réticulées de cellulose.
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