Performance of LiAlloy/Ag(2)CrO(4) Couples in Molten CsBr-LiBr-KBr Eutectic

Conference · Mon Oct 18 00:00:00 EDT 1999

OSTI ID:13965

GUIDOTTI, RONALD A; REINHARDT, FREDERICK W

The performance of Li-alloy/CsBr-LiBr-KBr/Ag{sub 2}CrO{sub 4} systems was studied over a temperature range of 250 C to 300 C, for possible use as a power source for geothermal borehole applications. Single cells were discharged at current densities of 15.8 and 32.6 mA/cm{sup 2} using Li-Si and Li-Al anodes. When tested in 5-cell batteries, the Li-Si/CsBr-LiBr-KBr/Ag{sub 2}CrO{sub 4} system exhibited thermal runaway. Thermal analytical tests showed that the Ag{sub 2}CrO{sub 4} cathode reacted exothermically with the electrolyte on activation. Consequently, this system would not be practical for the envisioned geothermal borehole applications.

• Research Organization: Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Sandia National Lab. (SNL-CA), Livermore, CA (United States)
• Sponsoring Organization: US Department of Energy (US)
• DOE Contract Number: AC04-94AL85000
• OSTI ID: 13965
• Report Number(s): SAND99-1704C; TRN: AH200135%%509
• Resource Relation: Conference: 1999 Joint International Meeting (196th Meeting of the Electrochemical Society), Honolulu, HI (US), 10/17/1999--10/22/1999; Other Information: PBD: 18 Oct 1999
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
15 GEOTHERMAL ENERGY
ANODES
BOREHOLES
CATHODES
ELECTROLYTES
EUTECTICS
PERFORMANCE
LITHIUM ALLOYS
CESIUM BROMIDES
LITHIUM BROMIDES
POTASSIUM BROMIDES
SILVER COMPOUNDS
CHROMATES
GEOTHERMAL WELLS
POWER SUPPLIES
THERMAL BATTERIES
Geothermal Legacy