Prof. Xiaofeng Wang is a Researcher at the Institute of Instrument Science and Technology, Tsinghua University. He graduated from the Department of Applied Chemistry, Qingdao University of Science and Technology, in 1996 with a Bachelor's Degree. Then, he went to the Department of Chemistry, University of Science and Technology Beijing, and obtained his Master's and Ph.D. degrees in 1998 and 2001, respectively. Subsequently, he served as a Postdoctoral Fellow at the Department of Mechanical Engineering, Tsinghua University, from 2001.10 to 2003.09. Since 2003.10, he has been working at the Department of Precision Instruments, Tsinghua University. His research areas include microelectrode processing and microenergy packaging technology based on MEMS, manufacturing technology of supercapacitors and high-power systems, preparation technology and electrochemical properties of micro-nano functional materials, and biochemical detection sensor technology based on MEMS technology.