1. Joint Center for Energy Storage Research, Lemont, Illinois 60439, United States
2. Material, Physical, and Chemical Sciences Center, Sandia National Laboratories, Albuquerque, New Mexico 87185, United States
3. Energy Technologies Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
4. Department of Chemical Engineering, Polytechnique Montreal, Montreal, QC H3T 1J4, Canada
5. Department of Materials Science and Engineering, UC Berkeley, Berkeley, California 94720, United States
6. Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States