Seongik Han received B.S. and M.S. degrees in Mechanical Engineering from Pusan National University, Busan, Korea, in 1987 and 1989, respectively, and a Ph. D. in Mechanical Design Engineering from Pusan National University, Busan, in 1995. From 1995 to 2009, he was at the Electrical Automation of Suncheon First College, Korea. From 2010 to 2017, he was at the Department of Electronic Engineering, Pusan National University, Korea. Now, he is at the Department of Mechanical System Engineering, Dongguk University WISE Campus, Korea. His research interests include secondary battery management, intelligent control, nonlinear control, robotic control, UAV and USV control. He has published 78 papers in international journals as the first or corresponding author