Lightweight plastic grids for lead/acid battery plates have been prepared from acrylonitrile butadiene styrene copolymer. The grids\udhave been coated with a conductive and corrosion-resistant tin oxide layer by a novel rapid thermally activated chemical reaction\udprocess. X-ray powder diffraction and X-ray photoelectron spectroscopy show the coated tin oxide film to be SnO2-like. The grids\udare about 75% lighter than conventional lead/acid battery grids. A 6 V/1 Ah lead/acid battery has been assembled and characterized\udemploying positive and negative plates made from these grids. The energy density of such a lead/acid battery is believed to be\udmore than 50 Wh/kg.
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