Potassium beta/double prime/-alumina membranes

Journal Article · Thu Apr 01 04:00:00 EST 1982 · J. Am. Ceram. Soc.; (United States)

DOI:https://doi.org/10.1111/j.1151-2916.1982.tb10401.x· OSTI ID:6740620

Crosbie, G M; Tennenhouse, G J

Although single-crystal beta- and beta/double prime/-aluminas can be ion-exchanged by immersion in molten nitrates, polycrystalline membranes of Na-/beta/sub d/double prime/-Al/sub 2/O/sub 3/ fracture on contact with molten KNO/sub 3/. A KCl vapor ion-exchange process allows synthesis of leaktight potassium-ion-conducting /beta/sub d/double prime/-AlO/sub 3/ membranes. Material properties, including results of electrical tests with molten potassium electrodes, are reported for a 12.65% K/sub 2/O 0.7% Li/sub 2/O, 86.65% Al/sub 2/O/sub 3/ composition. Low-resistivity polycrystalline K-/beta/sub d/double prime/-Al/sub 2/O/sub 3/ may be an alternative to the Na-/beta/sub d/double prime/-Al/sub 2/O/sub 3/ ion-conducting membrane for secondary batteries. 14 refs.

• Research Organization: Ford Mot Co, Dearborn, MI, USA
• OSTI ID: 6740620
• Journal Information: J. Am. Ceram. Soc.; (United States), Journal Name: J. Am. Ceram. Soc.; (United States) Vol. 65:4; ISSN JACTA
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
250903* -- Energy Storage-- Batteries-- Materials
Components
& Auxiliaries
ALKALI METAL COMPOUNDS
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
CHALCOGENIDES
ELECTRIC BATTERIES
ELECTRICAL PROPERTIES
ELECTROCHEMICAL CELLS
FABRICATION
ION EXCHANGE
MECHANICAL PROPERTIES
MEMBRANES
METAL-NONMETAL BATTERIES
OXIDES
OXYGEN COMPOUNDS
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POTASSIUM COMPOUNDS
SODIUM COMPOUNDS