▎ 摘　　要

NOVELTY - The lead-acid battery grid comprises 0.015-15 wt.% graphene, 1.0-1.5 wt.% tin, 0.02-0.04 wt.% aluminum, 0.05-0.1 wt.% calcium and 98.21-98.915 wt.% lead. USE - Lead-acid battery grid (claimed). ADVANTAGE - The preparation method is simple and reliable. The lead-acid battery grid is featured with simple structure and reduced cost. The lead alloy ensures strong creep and corrosion resistance, and satisfies the deep cycle and large current discharge requirements. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation method of lead-acid battery grid.