Prof. Xu received his Ph.D. from Northwestern Polytechnical University (NPU) and completed a joint doctoral training program at Technische Universität Dresden (TU Dresden), Germany. He then joined The Hong Kong University of Science and Technology (HKUST) as a Postdoctoral Fellow. He is currently an Associate Professor at Xidian University. His long-term research focuses on fundamental and applied studies of electrochemical energy-storage materials and devices. He has developed extensive expertise in solid-state electrolyte design, electrode/interphase engineering, and the development of emerging battery chemistries. His work systematically investigates the micro- and nanoscale structural design of electrolytes and electrode materials, the principles of controllable synthesis and fabrication, and their roles in improving battery energy density and cycle life. To date, he has published nearly 50 papers in leading journals, including J. Am. Chem. Soc., Energy Environ. Sci., Sci. Adv., Nat. Commun., Adv. Mater., and Angew. Chem. Int. Ed.