IMPROVED GRID ALLOY FOR LEAD-ACID BATTERY

摘要

A grid alloy for use particularly, but not exclusively, ensealed, maintenance free lead-acid batteries is defined. The grid alloy includes a component or components which preferably improve mechanical strength of the grid and/or prevent or at least reduce the formation of lead sulphate as a corrosion product and/or which improves the surface state of the grid material and/or which inhibit the deposition of various metals on crystalline boundaries of the alloy. In particular, the grid alloy can include group 1A and/or group 5A metallic elements and/or Ag, more particularly As and/or Bi, K and/or Na and optionally Ca and/or Li, Sn and/or Cu, Al and/or Mg and/or Zn.