Physical chemistry of molten salt batteries. Final report for period October 1, 1979-September 30, 1980. Current-induced composition gradients in molten LiCl-KCl

Technical Report · Sun Mar 01 04:00:00 EST 1981

OSTI ID:6652978

Braunstein, J; Cantor, S; Vallet, C E

Current induced composition gradients were demonstrated in the molten LiCl-KCl eutectic mixture, the electrolyte of an LiAl/LiCl-KCl/FeS/sub x/ battery. The gradients were produced by electrolysis of the salt between LiAl electrodes at currents of 50 to 100 mA cm/sup -2/, and quenching. Analysis of composition profiles in quenched samples was by atomic absorption spectroscopy, which gave good precision, and by x-ray fluorescence spectroscopy in a scanning electron microscope (SEM/EDX), which gave good distance resolution. Work is in progress to improve the precision of the SEM/EDX measurements to that demonstrated in model systems.

• Research Organization: Oak Ridge National Lab., TN (USA)
• DOE Contract Number: W-7405-ENG-26
• OSTI ID: 6652978
• Report Number(s): ORNL/TM-7639
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
250902* -- Energy Storage-- Batteries-- Performance & Testing
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400400 -- Electrochemistry
ALKALI METAL COMPOUNDS
BINARY MIXTURES
CHEMISTRY
CHLORIDES
CHLORINE COMPOUNDS
CURRENT DENSITY
DISPERSIONS
ELECTRIC BATTERIES
ELECTROCHEMICAL CELLS
ELECTROCHEMISTRY
ELECTROLYSIS
ELECTROLYTES
HALIDES
HALOGEN COMPOUNDS
LITHIUM CHLORIDES
LITHIUM COMPOUNDS
LITHIUM HALIDES
LYSIS
MASS TRANSFER
MIXTURES
MOLTEN SALTS
POTASSIUM CHLORIDES
POTASSIUM COMPOUNDS
SALTS