Salinity gradient power generation device comprising electrodes of an activated carbon fabric

A device for generating electrical energy by reverse electrodialysis (RED) comprising a first electrolyte solution of concentration CA of an electrolyte, a second electrolyte solution of concentration CB of the same electrolyte, CB being greater than CA, and:

• a) a first electrode supplied with the first electrolyte solution and having a porosity allowing flow of said first electrolyte solution;
• b) a second electrode supplied with the second electrolyte solution and having a porosity allowing the flow of said second electrolyte solution;
• c) a membrane selectively permeable to anions or cations, said membrane being disposed between the two electrodes and comprising at least one channel arranged to allow diffusion of electrolytes from the second electrolyte solution to the first electrolyte solution through said channel or channels;
• and
• d) a device for collecting the electrical energy generated by the potential differential existing between the two electrodes,
• wherein the two electrodes are made of an activated carbon fabric and the device does not comprise an external voltage source.