SEALED LEAD-ACID BATTERY

摘要

PROBLEM TO BE SOLVED: To provide a highly reliable and long-life sealed lead-acid battery whose positive electrode grid and positive and negative straps are all excellent in the corrosion resistance. SOLUTION: In the sealed lead-acid battery, a lead (Pb)-Ca-Sn alloy comprising 0.025-0.065 mass % of calcium(Ca) and 0.25-1.0 mass % of tin(Sn) is used as the negative electrode grid, and a Pb-Sn alloy comprising 1.3 mass % or less of pure lead or Sn is used as the added lead to form the straps for connecting lug parts of electrode plates.