Dr. Qing Wang (王庆) is an Associate Professor at the Department of Materials Science & Engineering, National University of Singapore. His research interest is “Charge Transport in Mesoscopic Energy Conversion and Storage Systems”. He did undergraduate and master study in electrochemistry in Harbin Institute of Technology in 1999 and obtained his PhD in Physics at Institute of Physics, Chinese Academy of Sciences in 2002. Before he moved to Singapore, he had been working with Prof. Michael Grätzel at École Polytechnique Fédérale de Lausanne (EPFL), Switzerland and Dr. Arthur J. Frank at National Renewable Energy Laboratory (NREL), USA, in the area of sensitised mesoscopic solar cells. Based on the redox targeting concept, he is currently working on a new battery technology — redox flow X-batteries, for advanced large-scale energy storage.