Date:2022.12.9-2022.12.11 Location:Sanya, China Introduction:We take great pleasure in welcoming you to Sanya, China for the EMET2022 on the theme of "Energy Material and Energy Technology" with prominent keynote speeches, poster presentations and oral presentations. This global English-language conference focuses on materials and technologies used in all forms of energy harvesting, conversion and storage, and aims to provide an international platform for scholars, scientists, engineers and students to present and discuss the latest research, bring novel insights and inspire more new ideas on energy materials and technologies.