(ZA9307283-A)      An electrochemical appts for energy storage and power delivery comprises means for electrolyte circulation (26,28) in a cell or array having soluble active constituents and inert positive and negative electrodes in respective chambers sepd by an ion exchange membrane (22,24). The negative chamber electrolyte contains sulphide during power delivery and the positive a liq oxidant. Large storage vols replenish the electrolytes and OH- is generated by water decomposition to compensate for pH changes in the positive chamber. Also claimed is an appts as above except that means are for pH compensation in the negative chamber.    Further claimed is a process for energy storage and power delivery using the appts of the first claim above.    Also claimed is a process using the appts of the second claim above.    Hydroxyl ions are produced by electrolysis of positive electrolyte water with venting of H2 and this gas is vented on one side of a microporous membrane with OH- passing through the membrane to the other side. The array is sealed with inert resin and all positive chambers are in electrolyte fluid parallel, and all negative chambers likewise. Repeated charge/discharge cycles are performed. A thick porous surface layer on a negative electrode reduces polysulphide availability and thus promotes electrolysis of water for pH control. The liq oxidant is bromine.    USE/ADVANTAGE -   Electrochemical storage of energy and/or power delivery. The processes are operable continuously, the cells are rechargeable, there is pH control and full power is delivered at low levels of charge.    (JP8502385-W)      An electrochemical appts for energy storage and power delivery comprises means for electrolyte circulation (26,28) in a cell or array having soluble active constituents and inert positive and negative electrodes in respective chambers sepd by an ion exchange membrane (22,24). The negative chamber electrolyte contains sulphide during power delivery and the positive a liq oxidant. Large storage vols replenish the electrolytes and OH- is generated by water decomposition to compensate for pH changes in the positive chamber. Also claimed is an appts as above except that means are for pH compensation in the negative chamber.    Further claimed is a process for energy storage and power delivery using the appts of the first claim above.    Also claimed is a process using the appts of the second claim above.    Hydroxyl ions are produced by electrolysis of positive electrolyte water with venting of H2 and this gas is vented on one side of a microporous membrane with OH- passing through the membrane to the other side. The array is sealed with inert resin and all positive chambers are in electrolyte fluid parallel, and all negative chambers likewise. Repeated charge/discharge cycles are performed. A thick porous surface layer on a negative electrode reduces polysulphide availability and thus promotes electrolysis of water for pH control. The liq oxidant is bromine.    USE/ADVANTAGE -   Electrochemical storage of energy and/or power delivery. The processes are operable continuously, the cells are rechargeable, there is pH control and full power is delivered at low levels of charge.    (RU2110118-C1)      An electrochemical appts for energy storage and power delivery comprises means for electrolyte circulation (26,28) in a cell or array having soluble active constituents and inert positive and negative electrodes in respective chambers sepd by an ion exchange membrane (22,24). The negative chamber electrolyte contains sulphide during power delivery and the positive a liq oxidant. Large storage vols replenish the electrolytes and OH- is generated by water decomposition to compensate for pH changes in the positive chamber. Also claimed is an appts as above except that means are for pH compensation in the negative chamber.    Further claimed is a process for energy storage and power delivery using the appts of the first claim above.    Also claimed is a process using the appts of the second claim above.    Hydroxyl ions are produced by electrolysis of positive electrolyte water with venting of H2 and this gas is vented on one side of a microporous membrane with OH- passing through the membrane to the other side. The array is sealed with inert resin and all positive chambers are in electrolyte fluid parallel, and all negative chambers likewise. Repeated charge/discharge cycles are performed. A thick porous surface layer on a negative electrode reduces polysulphide availability and thus promotes electrolysis of water for pH control. The liq oxidant is bromine.    USE/ADVANTAGE -   Electrochemical storage of energy and/or power delivery. The processes are operable continuously, the cells are rechargeable, there is pH control and full power is delivered at low levels of charge.