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. Department of Materials Science and Engineering, University of California, Berkeley, California 94720, United States
4. Energy Technologies Area, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
5. Physical and Computational Sciences Directorate, Pacific Northwest National Laboratory, Richland, Washington 99354, United States
6. The Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States