Sealed Bipolar Lead Acid Battery Development, Phase 2

摘要

Battery development efforts in Phase II of the program focused on improvements inelectrode and battery package construction after identification of problems identified during Phase I. New materials were selected for improved battery package and seals. Active surface area of the battery was increased in increments (from 10 sq cm in Phase I) to 26 and finally 250 square centimeters. Efforts have resulted in the successful design, assembly, formation, and testing of three-cell, six volt batteries. An actual true advanced bipolar lead acid battery with capacities of 5.2 AH and nominal 6 V has been demonstrated at Pinnacle Research Institute, Inc., which was subsequently verified by Wright Laboratory of U.S. Air Force. Based upon laboratory prototype demonstration, a final manufactured configured SBLA with energy density of 45 Wh/kg and a sustained power density of 300 W/kg is projected.