(542c) Characterization of in-Plane and through-Plane Ionic Conductivity Properties Using Ion-Exchange Membranes for Electrochemical Reactions

Ion exchange membranes (IEMs) play a vital role in various electrochemical systems, including aqueous batteries, fuel cells, and water splitting reactions, by facilitating the movement of ions between electrodes. Characterization of the ionic conductivity of IEMs is essential for optimizing their performance in electrochemical reactions. As a result, accurate measurements of membrane ionic conductivity are crucial for advancing the fundamental understanding of electric field-driven ion transport within IEMs. Two configurations are generally utilized for assessing conductivity: in-plane and through-plane. In-plane conductivity refers to ion movement parallel to the membrane's surface, while through-plane conductivity involves ion transport perpendicular to the membrane. We here aim to understand the membrane’s ion transport behaviors and their implication for overall electrochemical performance. To do so, we characterize both ion conductivities using commercial IEMs to relate with electrochemical reaction properties. Details will be addressed in this presentation.