ИСТИНА

Ninety percent of the energy produced today come from fossil fuels. Rapid consumption of these energy sources makes dramatically negative impact on our future due to ecological damage and climate change. In this sense the development of the environmentally benign renewable energy sources capable to replace fossil fuels and concurrently efficient large energy storage devices requires no justification. Li-ion batteries (LIBs) have been originally developed for portable electronic devices, but nowadays new application niches are envisaged in electric vehicles and stationary grid-scale energy storages. However, LIBs may be not fully adopted for these applications. The geographical scarcity and excessive demand for Li resources intensifies the development of alternative sustainable technologies based on vastly accessible materials, namely Na- and K- ion batteries.