in a stream 66 for example separation of the anode product from the electrolyte may be accomplished by centrifugation utilizing a centrifuge or filtration utilizing a filtering apparatus the resulting electrolyte flow stream designated 70 is circulated from the electrolyte reservoir anode product separator 64 through a heat exchanger 72 the heat exchanger 72 heats the electrolyte stream 70 by indirectly contacting the stream 70 with a heating stream 74 of air or water passing through heat exchanger 72 a heated electrolyte flow stream 76 exits the heat exchanger 72 and is passed to the cell stack 52 the electrolyte passing through the heat exchanger 72 and subsequently through the cell stack 52 may be initially provided from an electrolyte reservoir 80 and recycled electrolyte i e the stream 70 may be supplemented with electrolyte from the reservoir 80 as required fig3 5 wherein a u25a1 indicates a value obtained while increasing the temperature and a o indicates a value obtained while decreasing the temperature illustrate the technical feasibility of the use of the thermal coefficient of solubility of the metal hydroxide anode reaction product as a means by which electrolyte management is accomplished fig3 depicts temperature v solubility for lioh u00b7 h 2 o in 10m naoh fig4 depicts temperature v solubility for lioh u00b7 h 2 o in 15m naoh fig5 depicts temperature v solubility for lioh h 2 o in 20m naoh the figures show that in aqueous solutions of the much more.