1. Department of Physics, University of Illinois at Chicago, Chicago, Illinois 60607, USA
2. Joint Center for Energy Storage Research (JCESR), Argonne National Laboratory, 9770 S Cass Avenue, Lemont, Illinois 60439, USA
3. Department of Mechanical Engineering-Engineering Mechanics, Michigan Technological University, Houghton, Michigan 49931, USA
4. Department of Chemistry, University of Illinois at Chicago, Chicago, Illinois 60607, USA
5. Department of Mechanical and Industrial Engineering, University of Illinois at Chicago, Chicago, Illinois 60607, USA