Solid electrolytes: alkali-ion transport in skeleton structures. Semiannual technical summary report, 1 Jan--30 Jun 1976. [Na/sub 3/Zr/sub 2/Si/sub 2/PO/sub 12/ and K/sub 1/ /sub 9/Mg/sub 0/ /sub 95/Si/sub 1/ /sub 05/O/sub 4/]
Technical Report
·
OSTI ID:7313524
A new three-dimensional K/sup +/-ion conductor, K/sub 1.9/Mg/sub 0.95/Si/sub 1.05/O/sub 4/ was identified. Its resistivity at 300C is 28 ohm-cm, less than one-fourth the value for the best potassium ..beta..-alumina. More definitive measurements have been made of the Na/sup +/-ion transport in Na/sub 3/Zr/sub 2/Si/sub 2/PO/sub 12/ (NASICON). Its resistivity at 300C is 3 ohm-cm, compared with 4 ohm-cm for ..beta..''-alumina. Moisture tests have shown that NASICON is insensitive to water vapor. Static tests in molten Na/sub 2/S/sub 4/ for 10 days at 400C indicate chemical stability; similar tests in molten Na and dynamic tests in a Na--Na cell are in progress. Conclusive evaluation of stability awaits the preparation of additional test specimens. (GRA)
- Research Organization:
- Massachusetts Inst. of Tech., Lexington (USA). Lincoln Lab.
- OSTI ID:
- 7313524
- Report Number(s):
- AD-A-032342
- 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
ALKALINE EARTH METAL COMPOUNDS
CHALCOGENIDES
CHEMICAL REACTIONS
ELECTRIC BATTERIES
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELECTROCHEMICAL CELLS
ELECTROLYTES
ENERGY STORAGE SYSTEMS
HYDROGEN COMPOUNDS
HYDROXIDES
MAGNESIUM COMPOUNDS
MAGNESIUM OXIDES
OXIDES
OXYGEN COMPOUNDS
PHOSPHORUS COMPOUNDS
PHOSPHORUS OXIDES
PHYSICAL PROPERTIES
POTASSIUM COMPOUNDS
POTASSIUM OXIDES
SILICON COMPOUNDS
SILICON OXIDES
SODIUM COMPOUNDS
SODIUM OXIDES
SODIUM SULFIDES
SOLIDS
SULFIDES
SULFUR COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
ZIRCONIUM COMPOUNDS
ZIRCONIUM OXIDES
250903* -- Energy Storage-- Batteries-- Materials
Components
& Auxiliaries
ALKALI METAL COMPOUNDS
ALKALINE EARTH METAL COMPOUNDS
CHALCOGENIDES
CHEMICAL REACTIONS
ELECTRIC BATTERIES
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELECTROCHEMICAL CELLS
ELECTROLYTES
ENERGY STORAGE SYSTEMS
HYDROGEN COMPOUNDS
HYDROXIDES
MAGNESIUM COMPOUNDS
MAGNESIUM OXIDES
OXIDES
OXYGEN COMPOUNDS
PHOSPHORUS COMPOUNDS
PHOSPHORUS OXIDES
PHYSICAL PROPERTIES
POTASSIUM COMPOUNDS
POTASSIUM OXIDES
SILICON COMPOUNDS
SILICON OXIDES
SODIUM COMPOUNDS
SODIUM OXIDES
SODIUM SULFIDES
SOLIDS
SULFIDES
SULFUR COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
ZIRCONIUM COMPOUNDS
ZIRCONIUM OXIDES