Small-capacity valve-regulated lead/acid battery with long life at high ambient temperature

摘要

Valve-regulated lead/acid (VRLA) batteries are widely used as back-up power sources for telecommunications and UPS. These applications requires high-reliability under severe environmental conditions. To meet this demand, the authors' company have developed small capacity (12V, 15-65 A h at C_20/20 rate), long-life VRLA batteries which can endure high ambient temperature. These batteries make used of a new alloy and grid design which has improved resistance to corrosion at the positive plate, while at the same time reduce float current at high temperature.