TMF ultra-high rate discharge performance

Abstract

BOLDER Technologies Corporation has developed a valve-regulated lead-acid product line termed Thin Metal Film (TMF/sup TM/) technology. It is characterized by extremely thin plates and close plate spacing that facilitate high rates of charge and discharge with minimal temperature increases, at levels unachievable with other commercially-available battery technologies. This ultra-high rate performance makes TMF technology ideal for such applications as various types of engine start, high drain rate portable devices and high-current pulsing. Data are presented on very high current continuous and pulse discharges. Power and energy relationships at various discharge rates are explored and the fast-response characteristics of the BOLDER/sup R/ cell are qualitatively defined. Short-duration recharge experiments will show that devices powered by BOLDER batteries can be in operation for more than 90% of an extended usage period with multiple fast recharges.