1. Department of Chemistry and the Waterloo Institute for Nanotechnology, University of Waterloo, 200 University Avenue West, Waterloo, Ontario N2L 3G1, Canada
2. Joint Center for Energy Storage Research, Argonne National Laboratory, Lemont, Illinois 60439, United States
3. Neutron Scattering Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37822, United States
4. Physical & Computational Science Directorate, Pacific Northwest National Laboratory, Richland, Washington 99354, United States