1. Institute of High Temperature Electrochemistry, Ural Branch of Russian Academy of Sciences, 620990 Yekaterinburg, Russia
2. Ural Federal University Named After the First President of Russia B. N. Yeltsin, 620002 Yekaterinburg, Russia
3. Federal State Research and Design Institute of Rare Metal Industry (Giredmet JSC), 2 Elektrodnaya ul., 111524 Moscow, Russia