Jing Peng1 Gabriel Goenaga1 Zhijiang Tang2 Thomas Zawodzinski1 2

1, University of Tennessee, Knoxville, Knoxville, Tennessee, United States
2, Oak Ridge National Laboratory, Oak Ridge, Tennessee, United States

Transport of ions and reagents through electrodes and membranes determine the performance limits of redo flow batteries. In this talk, we will discuss our present understanding of the interplay amongst structure, mechanical properties and chemical interactions of materials in determining these properties. We will describe the state of understanding of how those factors control ion and solvent uptake in membranes and how the latter relate to conduction and permeation processes. We will begin to probe similar aspects of porous electrodes use in flow batteries. The molecular scale underpinnings of these various features will also be discussed.

We would like to gratefully acknowledge the current support of this work by the Office of Naval Research and the U.S. Department of Energy, Office of Electricity Delivery and Energy Reliability (Dr. Imre Gyuk) and the DoD Office of Naval Research.