Shekhtman Georgii Shaevich RussiaYekaterinburg Institute of high-temperature Electrochemistry UB of RAS, 20, Akademicheskaya St., Yekaterinburg, 620990senior research associateCandidate of Chemistry Sciencesshekhtman@ihte.uran.ru Author's articles Lithium-cation conductivity in the systems Li4ЭO4-Li4Zn(PO4)2 Lithium conducting solid electrolytes in the system Li4 – x- 3yAlyGe1 – xPxO4 Introduction effect of zirconium ions into the structure of a lithium germanate-vanadate solid electrolyte on its electrical properties The Lithium-conducting Solid Electrolytes in the System Li4-3xGaxGeO4 Solid potassium-conducting electrolytes in the systems K3-2xМxРO4 (М = Mg, Zn) Potassium ion conductivity in mixed gallate-ferrite solid electrolytes