Physical chemistry of molten-salt batteries. Final report, October 1, 1981-September 30, 1982. LiCl precipitation from LiCl-KCl anolyte in porous Li-Al electrodes

Technical Report · Sun May 01 00:00:00 EDT 1983

OSTI ID:6167689

Vallet, C E; Heatherly, D E; Heatherly, L Jr; Braunstein, J

Composition gradients such as those predicted to occur during discharge of porous Li-Al negative electrodes of Li/S batteries with LiCl-KCl eutectic electrolyte were generated and measured in the LiCl-KCl anolyte of an electrolysis cell with Li-Al electrodes. LiCl precipitation during electrolysis was observed by two-dimensional scanning of electrolyte composition in the front part of quenched porous Li-Al anode sections using SEM/EDX. The distribution of sites of increased or decreased LiCl concentration, LiCl saturation and precipitation was mapped. Cathodic regions were observed near the cell walls. Preliminary results of analysis by Auger spectroscopy confirm LiCl precipitation in the porous anode.

• Research Organization: Oak Ridge National Lab., TN (USA)
• DOE Contract Number: W-7405-ENG-26
• OSTI ID: 6167689
• Report Number(s): ORNL/TM-8714; ON: DE83012527
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
ELECTRIC BATTERIES
MOLTEN SALTS
PRECIPITATION
ALUMINIUM
AUGER ELECTRON SPECTROSCOPY
CHEMICAL COMPOSITION
ELECTRODES
ELECTROLYSIS
ELECTROLYTES
LITHIUM
LITHIUM CHLORIDES
POROUS MATERIALS
POTASSIUM CHLORIDES
SCANNING ELECTRON MICROSCOPY
ALKALI METAL COMPOUNDS
ALKALI METALS
CHLORIDES
CHLORINE COMPOUNDS
ELECTROCHEMICAL CELLS
ELECTRON MICROSCOPY
ELECTRON SPECTROSCOPY
ELEMENTS
HALIDES
HALOGEN COMPOUNDS
LITHIUM COMPOUNDS
LITHIUM HALIDES
LYSIS
MATERIALS
METALS
MICROSCOPY
POTASSIUM COMPOUNDS
SALTS
SEPARATION PROCESSES
SPECTROSCOPY
250902* - Energy Storage- Batteries- Performance & Testing