(ZA9307285-A)      An electrochemical appts for energy storage and power delivery consists of an array of cells comprising an end positive (12A) and negative (14A) electrode sepd by bipolar mid-electrodes (13), each having positive and negative sides facing positive and negative chambers. The positive side of each bipolar electrode comprises a conductive substrate having a porous conductive surface, and bipolar electrodes are sepd by cation exchange members (16). There are means of forming an intimate dispersion of air/O2 bubbles in the electrolyte and to circulate this electrolyte through the positive chambers, and means to circulate a sulphide electrolyte with a V2+ or Cr2+ salt through the negative chambers during power delivery.    The porous conductive surface is of carbon fibres, particles or hollow rods in intimate contact; the intimate gas/electrolyte mixt is formed outside the cell or within the positive chamber. The positive chamber electrolyte is dil alkali, more pref gp I or NH4+ hydroxide, or dil HCl or H2SO4. The array is electrically restorable or chemically replenishable, the former by reversing polarity and the reaction direction and the latter by circulating electrolytes from large storage chambers. The array cells are connected in series. The porous conductive surface is at least 2.5 mm thick.    USE/ADVANTAGE -   As a rechargeable electrochemical array for energy storage and power delivery. The array has improved bipolar air electrodes, is rechargeable, gives economic power generation, and gives full power and low charge levels.    (JP8502386-W)      An electrochemical appts for energy storage and power delivery consists of an array of cells comprising an end positive (12A) and negative (14A) electrode sepd by bipolar mid-electrodes (13), each having positive and negative sides facing positive and negative chambers. The positive side of each bipolar electrode comprises a conductive substrate having a porous conductive surface, and bipolar electrodes are sepd by cation exchange members (16). There are means of forming an intimate dispersion of air/O2 bubbles in the electrolyte and to circulate this electrolyte through the positive chambers, and means to circulate a sulphide electrolyte with a V2+ or Cr2+ salt through the negative chambers during power delivery.    The porous conductive surface is of carbon fibres, particles or hollow rods in intimate contact; the intimate gas/electrolyte mixt is formed outside the cell or within the positive chamber. The positive chamber electrolyte is dil alkali, more pref gp I or NH4+ hydroxide, or dil HCl or H2SO4. The array is electrically restorable or chemically replenishable, the former by reversing polarity and the reaction direction and the latter by circulating electrolytes from large storage chambers. The array cells are connected in series. The porous conductive surface is at least 2.5 mm thick.    USE/ADVANTAGE -   As a rechargeable electrochemical array for energy storage and power delivery. The array has improved bipolar air electrodes, is rechargeable, gives economic power generation, and gives full power and low charge levels.    (RU2119701-C1)      An electrochemical appts for energy storage and power delivery consists of an array of cells comprising an end positive (12A) and negative (14A) electrode sepd by bipolar mid-electrodes (13), each having positive and negative sides facing positive and negative chambers. The positive side of each bipolar electrode comprises a conductive substrate having a porous conductive surface, and bipolar electrodes are sepd by cation exchange members (16). There are means of forming an intimate dispersion of air/O2 bubbles in the electrolyte and to circulate this electrolyte through the positive chambers, and means to circulate a sulphide electrolyte with a V2+ or Cr2+ salt through the negative chambers during power delivery.    The porous conductive surface is of carbon fibres, particles or hollow rods in intimate contact; the intimate gas/electrolyte mixt is formed outside the cell or within the positive chamber. The positive chamber electrolyte is dil alkali, more pref gp I or NH4+ hydroxide, or dil HCl or H2SO4. The array is electrically restorable or chemically replenishable, the former by reversing polarity and the reaction direction and the latter by circulating electrolytes from large storage chambers. The array cells are connected in series. The porous conductive surface is at least 2.5 mm thick.    USE/ADVANTAGE -   As a rechargeable electrochemical array for energy storage and power delivery. The array has improved bipolar air electrodes, is rechargeable, gives economic power generation, and gives full power and low charge levels.