1. Battery Science Branch Energy Science Division, Sensor and Electron Devices Directorate DEVCOM Army Research Laboratory Adelphi MD 20783 USA
2. Department of Chemical and Biomolecular Engineering University of Notre Dame Notre Dame IN 46556 USA
3. Department of Chemical and Biomolecular Engineering University of Maryland College Park MD 20742 USA
4. The Molecular Foundry and the Joint Center for Energy Storage Research Lawrence Berkeley National Laboratory Berkeley CA 94720 USA