Feng Liang is a professor in the Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Yunnan, China. His research interests cover nanomaterials and their applications in energy fields, including all solid-state batteries, sodium air/CO2 batteries, sodium ion batteries, supercapacitors, the growth mechanisms and preparation of nanomaterials by plasmas, plasma metallurgy and material integration, and plasma diagnosis and simulation.Shan Liu is a professor in the College of Chemical Engineering, North China University of Science and Technology, Hebei, China. His research focuses on energy and materials, nanomaterials, and applied electrochemistry.