Performance of sodium-beta alumina solid electrolyte in Na/S cells

Conference · Thu Jan 01 04:00:00 EST 1981 · Proc., Intersoc. Energy Convers. Eng. Conf.; (United States)

OSTI ID:5192635

De Jonghe, L C

The performance of sodium-beta alumina type solid electrolytes is limited by degradation. Two different modes of degradation are discussed. Mode I involves the well studied current focusing on a pre-existing surface flaw; Mode II involves internal sodium precipitation and possible microfracture. The second mode can be activated when a gradient in transport number ratios has been created by chemical reduction of the electrolyte by the sodium electrode. The implications of the degradation for cell operation are discussed. 9 refs.

• Research Organization: Univ of Calif, Berkeley, USA
• OSTI ID: 5192635
• Report Number(s): CONF-810812-
• Conference Information: Journal Name: Proc., Intersoc. Energy Convers. Eng. Conf.; (United States) Journal Volume: 1
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
250903* -- Energy Storage-- Batteries-- Materials
Components
& Auxiliaries
ALKALI METALS
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
CHALCOGENIDES
CHEMICAL REACTIONS
DECOMPOSITION
ELECTRIC BATTERIES
ELECTROCHEMICAL CELLS
ELECTROLYTES
ELEMENTS
FAILURES
METAL-NONMETAL BATTERIES
METALS
OXIDES
OXYGEN COMPOUNDS
PERFORMANCE
SODIUM
SODIUM-SULFUR BATTERIES
SOLID ELECTROLYTES