XV International Conference "Actual problems of energy conversion in lithium electrochemical systems" is devoted to the problems of the most dynamically developing industry in the modern world. By 2020, after putting into operation the enterprises of lithium-ion batteries (LIA) that are being built today, the world volume of their production will double. The conference continues the 30-year tradition and is the most authoritative and attended conference on lithium electrochemical systems in the post-Soviet space and one of the most significant conferences on this topic in the world. Annual growth in the number of foreign participants in the work of the conference is observed. The readiness to speak at the plenary session of the conference was already expressed by six leading foreign experts, whose work determines the current state of the problem of metal-ion systems:

1. Prof. M.D. Levi, Department of Chemistry, Bar-Ilan University, Ramat-Gan 52900, Israel. «Current strategies on synthesis and improved performance of high-energy Li-Ni-Mn-oxide cathodes and Si anode for Li-ion batteries»

2. Dr. Dominic Bresser, Helmholtz Institute Ulm, Karlsruhe Institute of Technology, Helmholtzstrasse 11, 89081 Ulm, Germany « Towards sustainable batteries: safer and environmentally-friendly materials and processes»

3. Professor Teófilo ROJO, Department of Inorganic Chemistry. Faculty of Science and Technology. University of the Basque Country P.O. Box 644, 48080, Bilbao, Spain. « Na- ion batteries for large scale applications: challenges and opportunities»

4. Dr Claude DELMAS, Directeur de Recherche au CNRS, ICMCB-CNRS (UPR9048), Université Bordeaux 1 « Layered oxides in lithium and sodium ion batteries»

5. Prof. Shinichi KOMABA, Tokyo Univ. of Science, Shinjuku, Tokyo 162-8601, JPN « Towards Na-ion and K-ion batteries beside Li-ion»

6. Seung-Taek Myung, Ph. D., Editor of the Journal of Power Sources, Professor, Department of Nanotechnology & Advanced Materials Engineering, Sejong University, 98 Gunja-dong, Gwangjin-gu. «Topical problems of energy conversion in lithium electrochemical systems»