Title :
Rechargeable lithium-aluminum/iron sulfide batteries for high energy density
Author :
Oweis, Salah M. ; Embrey, J. ; Willson, John ; Alunans, Peter
Author_Institution :
SAFT America Inc., Cockeysville, MD, USA
Abstract :
A rechargeable lithium aluminum/iron sulfide battery has been built and tested. Prismatic LiAl/FeS cells provide a delivered energy to 80% depth of discharge (DOD) of 217 Wh/1 and a peak power of 375 W/l. Cycle life of over 365 cycles was achieved at the C/3 rate. Pulse self-discharge and driving cycle tests were also performed for an electric vehicle application. The molten salt electrolyte requires an operational temperature of about 450°C. A thermal control system composed of heating elements, thermal enclosure, and heat exchanger was engineered and tested. The components for a 8 kWh battery were developed and evaluated. This high temperature rechargeable battery is suitable for applications requiring high specific energy and minimal volume
Keywords :
aluminium alloys; electrolytes; heat exchangers; iron compounds; life testing; lithium alloys; secondary cells; thermal variables control; 450 degC; 8 kWh; LiAl-FeS; cycle life; depth of discharge; heat exchanger; heating elements; high energy density; molten salt electrolyte; operational temperature; peak power; prismatic cells; pulse self-discharge; rechargeable batteries; thermal control system; thermal enclosure; Aluminum; Automatic testing; Batteries; Heat engines; Iron; Lithium; Performance evaluation; Temperature; Thermal engineering; US Department of Defense;
Conference_Titel :
Power Sources Symposium, 1992., IEEE 35th International
Conference_Location :
Cherry Hill, NJ
Print_ISBN :
0-7803-0552-3
DOI :
10.1109/IPSS.1992.281984
