1. Department of Chemistry and the Waterloo Institute for Nanotechnology, University of Waterloo, Ontario N2L 3G1, Canada
2. Joint Center of Energy Storage Research, Argonne National Laboratory, Lemont, Illinois 60439, United States
3. Energy Storage and Distributed Resources Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720, United States
4. Molecular Foundry, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720, United States
5. Department of Materials Science and Engineering, UC Berkeley, Berkeley, California 94720, United States