How do rubber separators retard antimony transfer?
Antimony deposited on the surface of the negative plate will lower the hydrogen overvoltage, causing hydrogen gas evolution and a discharging of the plate. Rubber separators prevent the deletrious effect of antimony on the negative plates while retaining many advantages of having an antimony alloy in the grid of the positive plate. The advantages include improved casting process, strong grid, prevention of premature capacity loss and ability to recover from deep discharging.
