Professor Xiaoyi Li received his B. Eng. Degree from Southeast University in 2012. He received his Ph.D. degree in Materials Science and Engineering from Tsinghua University in 2017. He was an exchange Ph.D. student of Beijing Institute of Nanoenergy and Nanosystems (China Academy of Sciences) from 2013-2018. Professor Li was a postdoctoral fellow in the Laboratory of Nanoenergy and Intelligent Systems, Chinese University of Hong Kong, from 2018 to 2019. He started as a professor at the School of Materials Science and Engineering of Ocean University of China in 2019. His current research interests include mechanical energy harvesting, high-voltage applications of triboelectric nanogenerators, and self-powered systems.