Redox accumulator to the storage and release of energy in a cell subject-matter

摘要

A redox accumulator 10 has an anode compartment 16 and a cathode compartment 17 separated by a semi- permeable, ion-exchange membrane 11 with a solution permeable anode 12 comprising a thin, porous layer of electrically conductive and corrosion resistant powder bonded to one side of the membrane and a solution permeable cathode 13 comprising a thin porous layer of electrically conductive and corrosion resistant powder bonded to the other side of the membrane. A solution of an oxidisable compound is fed into compartment 16, and a solution of a reducible compound into compartment 17; a p.d. impressed between anode 12 and cathode 13 initiates the redox reaction. The oxidised anolyte and reduced catholyte solutions are stored, respectively, in 19 and 111. Electrical energy is released from the cell by circulating the oxidized anolyte through the anolyte chamber 16 and the reduced catholyte through the cathode chamber 17. Catholyte solutions may contain Cr6+/Cr3+, and anolyte solutions Cr3+/Cr2+. IMAGE