Load leveling and electrolysis system
View Patent ↗The invention is a device for electrical load-leveling and/or electrolysis. A housing contains pairs of electrodes made from or containing a porous material. The electrodes are filled respectively with an anolyte and a catholyte, which is an ionic couple such as Vanadium +2/+3. A non-permi-selective barrier membrane with openings may be included to substantially separate the electrode pair. The device results in reduced resistive, over-potentials and polarization losses, and may be scaled-up for integration into an electric utility.
1. A device for electrical load leveling and/or electrolysis comprising:
a housing;
at least one pair of electrodes located within the housing; and
a non-permiselective barrier member substantially separating the pair of electrodes, the barrier being formed with an opening to allow ionic current and mass transfer of a suitable electrolyte to occur,
wherein the electrodes are made of porous material and having interiors that are fed respectively-with an anolyte and a catholyte selected from a suitable ionic couple by flowing the anolyte and catholyte into the respective interiors so that substantial mixing of the anolyte and catholyte is prevented by having the anolyte and catholyte flow away from the opening in the barrier.
2. The device according to claim 1 , wherein the electrodes are substantially tubular and formed from a suitably porous conductive material.
3. The device according to claim 1 , wherein the electrodes are substantially tubular and contain a suitably conductive material.
4. The device according to claim 2 , wherein the conductive material is selected from the group consisting of granules, powders, felts, wools, wires, beads, foam metal, and sintered metal and other high surface area materials capable of resisting deterioration by the electrolyte.
5. The device according to claim 1 , further comprising a chamber for collection of the anolyte and a chamber for the collection of the catholyte from the respective electrodes.
6. The device according to claim 1 wherein the opening is located at a bottom end portion of the barrier.
7. The device according to claim 1 , wherein the barrier is formed from a porous non-permiselective material.
8. The device according to claim 1 wherein a top portion of the barrier member contacts a collection chamber.
9. The device according to claim 1 , comprising a plurality of electrode pairs and wherein the barrier members are formed with a plurality of openings.
10. The device according to claim 1 wherein the container, barrier member and electrode pairs are made from a material that will not deteriorate in the presence of the electrolyte.
11. The device according to claim 1 , further comprising at least one pump mechanism.
12. The device according claim 1 wherein the ionic couple is chosen from the group consisting of the same element, and one cationic element and one cationic element, and wherein all charging and discharging reactions are reversible.
13. The device according to claim 12 , wherein the ionic couple is Iron +2/+3 for the catholyte and Iron +3/+6 for the anolyte.
14. The device according to claim 1 , wherein the ionic couple is capable of reducing water to hydrogen.
15. The device according to claim 12 wherein the ionic couple has a net voltage of not less than 1.229V.
16. The device according to claim 12 , wherein the ionic couple is Vanadium +2/+3 for the catholyte and Vanadium +4/+5 for the anolyte.
17. The device according to claim 12 , wherein the couple is Mn+2/+3 for the catholyte and any combination of Mn +4/+5/+7 for the anolyte.
18. The device according to claim 12 , wherein the couple is Zn+0/+2 for the catholyte and Br0/Br- for the anolyte.
19. The device according to claim 12 , wherein the ionic couple is Fe(0)+2 and Br(0)/Br.
20. The device according to claim 12 , wherein the ionic couple is any suitable pair selected from Group 3 to Group 17 elements.