1. Department of Materials Science and Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
2. EC Power, 341 Science Park Road, State College, Pennsylvania 16803, United States
3. Department of Energy and Mineral Engineering and Materials Science and Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
4. Electrochemical Engine Center (ECEC) and Department of Mechanical Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States