Plaksin S. V. RussiaYekaterinburg Institute of high-temperature Electrochemistry UB of RAS, 20, Akademicheskaya St., Yekaterinburg, 620990 Author's articles Lithium-ionic conduction of solid solutions Li8Zr1 – xCexO6 Phase composition, electric conductivity, stability of solid electrolyte ZrO2–Sc2O3 and ZrO2–Sc2O3–CeO2 systems' characteristics in area of low content of Sc2O3 and CeO2 New potassium-conducting solid electro-lytes in the mixed alumoferrite system K0.90Ba0.05Al1-xFexO2 Sintering of La0.88Sr0.12Ga0.82Mg0.18O2.85 ceramic