High resolution electron microscopy of sodium ? and ?'' alumina (MR-EC-002)

This paper describes recent observations on lithia-stabilised sodium ß" -alumina before and after use in a test cell for 237 days, having undergone 627 cycles and 290 Ah cm-2. The material, a solid electrolyte, commonly exists in two forms: the ß phase, space group P63/mmc, the unit cell of which...