1. Department
of Material Science and Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
2. X-ray
Science Division, Advanced Photon Source, Argonne National Laboratory, 9700 S. Cass
Avenue, Argonne, Illinois 60439, United States
3. A123-Systems, 200 West
Street, Waltham, Massachusetts 02451, United States