Investigation of a vitreous electrolyte for use in lithium/sulfur cells
Technical Report
·
OSTI ID:5747045
Novel Li/S cells, which employed a fast-lithium-ion conducting lithium chloroborate galss as the solid electrolyte, have been built and operated at 400/sup 0/C. The composition of glass used for this study, 7.3 mol% (LiCl)/sub 2/, 25.7 mol% Li/sub 2/O, and 67.0 mol% B/sub 2/O/sub 3/, had an ionic conductivity of 2.9 x 10/sup -3/ (..cap omega../sup -1/.cm/sup -1/) ar 400/sup 0/C, which was somewhat lower than those of other lithium chloroborate glasses, which have shown ionic conductivities as high as 2 x 10/sup -2/ (..cap omega../sup -1/. cm/sup -1/). The current-voltage characteristics of these cells were found to be capable of supporting pseudo-steady-state current densities up to 15 mA/cm/sup 2/ for 15-20 hours. A limiting current was found to exist at approximately 23 mA/cm/sup 2/. These cells could be charged and discharged with approximately equal polarization in either direction. However, the accumulation of a crystalline reaction layer on the surface of the electrolyte during discharge caused the cells to fail before the completion of a full charge-discharge cycle. These cells were also used to measure the solubility of lithium (as a polysulfide) in sulfur. The solubility limit was found to occur at 0.04 mol% Li at 400/sup 0/C.
- Research Organization:
- Lawrence Berkeley Lab., CA (USA)
- DOE Contract Number:
- AC03-76SF00098
- OSTI ID:
- 5747045
- Report Number(s):
- LBL-20737; ON: DE86011192
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
25 ENERGY STORAGE
250903* -- Energy Storage-- Batteries-- Materials
Components
& Auxiliaries
ALKALI METAL COMPOUNDS
ALKALI METALS
BORON COMPOUNDS
BORON OXIDES
CHALCOGENIDES
CHLORIDES
CHLORINE COMPOUNDS
CURRENT DENSITY
ELECTRIC BATTERIES
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELECTROCHEMICAL CELLS
ELECTROLYTES
ELEMENTS
GLASS
HALIDES
HALOGEN COMPOUNDS
HIGH TEMPERATURE
LITHIUM
LITHIUM CHLORIDES
LITHIUM COMPOUNDS
LITHIUM HALIDES
LITHIUM OXIDES
LITHIUM-SULFUR BATTERIES
METAL-NONMETAL BATTERIES
METALS
NONMETALS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
SOLID ELECTROLYTES
SOLUBILITY
SULFUR
THERMODYNAMIC PROPERTIES
TRANSITION TEMPERATURE
250903* -- Energy Storage-- Batteries-- Materials
Components
& Auxiliaries
ALKALI METAL COMPOUNDS
ALKALI METALS
BORON COMPOUNDS
BORON OXIDES
CHALCOGENIDES
CHLORIDES
CHLORINE COMPOUNDS
CURRENT DENSITY
ELECTRIC BATTERIES
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELECTROCHEMICAL CELLS
ELECTROLYTES
ELEMENTS
GLASS
HALIDES
HALOGEN COMPOUNDS
HIGH TEMPERATURE
LITHIUM
LITHIUM CHLORIDES
LITHIUM COMPOUNDS
LITHIUM HALIDES
LITHIUM OXIDES
LITHIUM-SULFUR BATTERIES
METAL-NONMETAL BATTERIES
METALS
NONMETALS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
SOLID ELECTROLYTES
SOLUBILITY
SULFUR
THERMODYNAMIC PROPERTIES
TRANSITION TEMPERATURE