Junlei Qi is a full Professor at State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology (HIT). He received his B.S. and Ph.D. degrees under the supervision of Prof. Weitao Zheng from Jilin University in 2005 and 2010, respectively. He was a visiting scholar in Prof. Toriumi Akira's group (2012–2013) at the University of Tokyo, where he investigated single-crystal graphene micro–nano device manufacturing. Dr. Qi’s current interests focus on vertical-standing arrays for electrochemical energy storage and conversion.