Effect of Corrosion and Growth on the Life of Positive Grids in the Lead-Acid Cell

Abstract

Corrosion and growth of several binary and ternary lead alloys were measured under various conditions. Tin additions were found to have a positive effect in slowing corrosion rates. Small amounts of a third element may be added to the tin alloys to increase tensile strength without increasing corrosion rates. An empirical relationship between growth and tensile strength is shown. Positive‐plate grid growth is correlated with capacity‐life data for a cell having 8 per cent antimonial grids.