Xu Youlong: Male, born in 1965, China nationality, with no permanent residency abroad, graduated from Xi Jiaotong University, Ph.D., professor. He is also a member of IEEE, American Chemical Society, international society of electrochemistry, USA, China and Singapore Materials Research Societies, a member of China Electronics Society, a deputy director of the Electronic Components Branch of China Electronics Society and a deputy director of the Resistance-Capacitance Professional Committee, a chairman of the Electrolytic Capacitor Technical Committee of the Capacitor Branch of China Electronic Components Industry Association, an executive director of the 10th Council of Shaanxi Electronics Society, a chairman of the Electronic Materials and Components Professional Committee of Shaanxi Electronics Society, and a chairman of An Nanotechnology Society. 1June 1989 to 199 1 June 1989 and 65438+February 1989 as a teaching assistant in the Department of Electronic Engineering of Xi 'an Jiaotong University; 199 1 year 65438+February to1July 1997 as a lecturer in the Department of Electronic Engineering of Xi 'an Jiaotong University; 1July 1997 to April 200 1 year, served as an associate professor in the Department of Electronic Science and Technology of Xi Jiaotong University; Since April, 20001year, he has been a professor in the Department of Electronic Science and Technology of Xi 'an Jiaotong University. Since July 2003, he has served as a doctoral supervisor in the Department of Electronic Science and Technology of Xi Jiaotong University. 200 1-2002, Visiting Professor, Department of Applied Chemistry, tokyo institute of technology. From June 2004 to April 2007, he served as deputy director of the Department of Electronic Science and Technology of Xi 'an Jiaotong University; Since May 2007, he has been the head of the Department of Electronic Science and Technology of Xi Jiaotong University. 20151110 as an independent director of the company.