Study on the cycling capacity of secondary zinc electrodes

Zinc electrodes in Zn/Ni and Zn/air batteries had the benefits of high specific energy density and low cost But the zinc electrode had problems as shape change, dendrite and capacity loss while cyclingAn accelerated test for zinc plates was developed A number of additives was screened to see if they improved zinc utilization under deep cycling Calculating the cumulative capacity of the zinc electrode, the results showed that bismuth oxide and acetylene black could improve the deep cycling life of zinc electrodes The mechanism of the cycling capacity loss of zinc plates were investigated by SEM It was found that the major cause of capacity loss was a decrease in the porosity of active material of zinc electrodes