Title :
Li-alloy/FeS2 as a sealed bipolar battery
Author :
Kaun, T.D. ; Duoba, M.J. ; Gillie, K.R. ; Simon, D.R. ; Vissers, D.R.
Author_Institution :
Argonne Nat. Lab., IL, USA
Abstract :
Continued development has brought about an electrolyte-starved cell operation with MgO powder separator and overcharge tolerance. This same technology is being used in development of a bipolar Li/FeS2 battery. This LiCl-LiBr-KBr molten electrolyte battery is operated at 400-425°C. An overcharge tolerant cell design safeguards the Li/FeS2 cells in a bipolar battery and allows charge/equalization with simple trickle-charging. New materials and hermetic seal development have progressed to a four-cell bipolar Li/FeS 2 stack test, having over 150 cycles. A prototype sealed bipolar Li/FeS2 battery has a projected performance of 191 Wh/kg specific energy with 500 W/kg peak specific power through 80% depth of discharge
Keywords :
electrochemical electrodes; electrolytes; iron compounds; lithium; secondary cells; 400 to 425 degC; Li-FeS2; LiCl-LiBr-KBr; MgO powder separator; cycling; depth of discharge; design; hermetic seal; molten electrolytes; overcharge tolerance; performance; sealed bipolar battery; secondary cells; trickle-charging; Additives; Assembly; Batteries; Conductivity; Electrodes; Impedance; Lithium; Particle separators; Powders; Seals;
Conference_Titel :
Power Sources Symposium, 1990., Proceedings of the 34th International
Conference_Location :
Cherry Hill, NJ
Print_ISBN :
0-87942-604-7
DOI :
10.1109/IPSS.1990.145782
