Shengqi Fan1,Niya Sa2,1,3
Indiana University Bloomington1,Argonne National Laboratory2,University of Massachusetts Boston3
Shengqi Fan1,Niya Sa2,1,3
Indiana University Bloomington1,Argonne National Laboratory2,University of Massachusetts Boston3
Shengqi Fan<sup>1</sup>, Niya Sa<sup>1</sup><br/>University of Massachusetts Boston<sup>1</sup><br/>Magnesium (Mg) has gained significant attention as a potential candidate for high-performance energy storage systems due to its high volumetric capacity and abundance. However, the practical implementation of Mg-based batteries faces challenges stemming from a limited fundamental understanding of the Mg electrodeposition/dissolution process. The complex crystallographic structure evolution at the deposited Mg interface during electrochemical cycling plays a crucial role in the performance and durability of Mg batteries. In this study, we present an in-situ X-ray diffraction technique that enables real-time monitoring and characterization of the electrochemically deposited Mg interface. By analyzing the diffraction patterns obtained under various applied voltages, we have obtained valuable insights into the dynamic changes in peak positions and the lattice parameters at the electrode surface during Mg deposition and dissolution. Our findings could potentially contribute to the development of optimized electrolyte formulations and improved electrochemical cell designs for Mg-based batteries.