Performance of the Horizon advanced lead-acid battery

Using new lead-composite materials and innovative cell-design and packaging design rules, Electrosource has developed a high-specific-energy, long-cycle-life, valve-regulated lead-acid battery. This paper presents performance and cycle-life data for this revolutionary new design. Specific energy exceeds 40 Whrs/kg at C/2. Under sustained moderately-high current density loads, specific power exceeds 300 W/kg at 100% state of charge, and 250 W/kg at 50% depth of discharge. C/2 cycle life exceeds 900 cycles under constant current discharge to an average depth of discharge >80% with recharge time <3 hours.