System for energy generation or storage on an electrochemical basis

摘要

A system for energy generation or storage on an electrochemical basis includes at least one flow cell, each flow cell including two half-cells through which differently charged electrolyte liquids (21, 22) flow and which are separated by a membrane, at least one electrode being disposed in each of these half-cells, and a tank for each of the electrolyte liquids. A common gas volume (23) connecting the tanks is provided, and at least one catalyst (24) for reducing a positive reaction partner of then redox pair in contact with the positive electrolyte liquid (22) and also with the common gas volume (23) is disposed in the tank for the positive electrolyte liquid (22).

主权项

1. An apparatus for energy generation or storage on an electrochemical basis, comprising:
at least one flow cell comprising a first half-cell containing at least one first electrode and a second half-cell containing at least one second electrode, said first and second half-cells being separated by a membrane, a first tank containing a negatively charged electrolyte liquid and comprising a first gas volume, a first inlet and outlet for connecting the first tank to said first half-cell whereby said negative electrolyte liquid is circulated through the first tank and the first half-cell, a second tank containing a positively charged electrolyte liquid and comprising a second gas volume, a second inlet and outlet for connecting the second tank to said second half-cell whereby said positive electrolyte liquid is circulated through the second tank and the second half-cell, said first gas volume and said second gas volume being connected to form a common gas volume, and a catalyst positioned in said second tank in contact with both said positive electrolyte liquid and said common gas volume, whereby as a result of said circulation of said positive electrolyte liquid, the positive electrolyte liquid flows periodically or continually over said catalyst and said catalyst reduces a positive reaction partner of a redox pair in said positive electrolyte liquid.