Method of preparing .beta."-a1.sub.2o.sub.3

Details Method of preparing .beta."-a1.sub.2o.sub.3 Method of preparing .beta."-a1.sub.2o.sub.3

C - Chemistry, Metallurgy

01

F

23/248

C01F 7/02 (2006.01) C04B 35/113 (2006.01) H01M 10/39 (2006.01)

Patent

CA 1081914

METHOD OF PREPARING "-Al2O3 Abstract of the Disclosure .beta."-Al2O3 is a highly desirable material for serving the double function of solid electrolyte and separator in a re- chargeable battery that employs sodium, Na, as the anode and sulfur, S, as the cathode. But conventional means for manufacturing the .beta."-Al2O3 require temperatures between 1400 and 1600°C. By reacting .theta.-Al2O3 with Na2O, or a compound that yields Na2O on decomposition, the desired .beta."-Al2O3 is obtained at temperatures as low as 950°C.

271787

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