Title :
Rechargeable pulse power lithium alloy/iron disulfide batteries
Author :
Briscoe, J.D. ; Staniewicz, R.J. ; Williams, M.
Author_Institution :
SAFT R&D Center, Cockeysville, MD, USA
Abstract :
Advanced lithium alloy/iron disulfide batteries optimized for high power densities of 2.9 kW/kg are currently under development at SAFT. Configured as a bipolar array of sealed cells, 10 kW scalable modules are under development operating at charge and discharge rates of 3 C and 73 C, respectively. A high conductivity molten salt electrolyte was used that provides superior pulse capability in excess of 6 W/cm2. The electrolyte also serves as a separator layer with unlimited freeze thaw capabilities. The electrochemistry consists of a lithium aluminum alloy negative electrode, iron disulfide positive electrode, and magnesium oxide powder immobilized molten salt electrolyte. Pressed powders were cold compacted into circular disks which were assembled into bipolar cell hardware with peripheral ceramic seals. The results and discussions of tests performed on Li/FeS2 and batteries during the first year are reported
Keywords :
aluminium alloys; electrolytes; lithium alloys; magnesium compounds; pulsed power technology; secondary cells; 10 kW; LiAl-FeS2; MgO; SAFT; bipolar array; bipolar cell hardware; charge rates; circular disks; discharge rates; electrochemistry; high conductivity molten salt electrolyte; high power densities; immobilized molten salt electrolyte; lithium alloy/iron disulfide batteries; magnesium oxide powder; peripheral ceramic seals; pressed powders; sealed cells; separator layer; unlimited freeze thaw capabilities; Aluminum alloys; Assembly; Batteries; Conductivity; Electrodes; Iron alloys; Lithium; Magnesium oxide; Particle separators; Powders;
Conference_Titel :
Power Sources Symposium, 1992., IEEE 35th International
Conference_Location :
Cherry Hill, NJ
Print_ISBN :
0-7803-0552-3
DOI :
10.1109/IPSS.1992.282023
