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TOTAL CURRENT / CORROSION CURRENT PARASITIC CURRENT AND LEAKAGE CURRENT LEAKAGE CURRENT 5 10 15 20 25 30 APPLIED POTENTIAL — volts Figure 23-2. Measurements of parasitic current, leakage current, and corrosion current of 20kWh battery. impurities and the electrolysis of water, undoubtedly accounted for much of this current, it was decided that the design for the electrode bus-to-tray seals should be improved. The parasitic current was obtained by measuring the current with the pump operating at normal speed. Together with the leakage current, at an applied voltage of 23V, the total current would be approximately 3.5% of the normal charg ing current, 260 amps. The corrosion current was found by adding one q/SL dissolved chlorine to the electrolyte, and subtracting out the parasitic and leakage current contributions. This value is approximately 9.5 amps, or 1.65mA/cm' per gram/liter of dissolved chlorine. This rate of chlorine attack on zinc during 23-5PDF Image | Development of the Zinc-Chlorine Battery for Utility
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