Determination of Average Coulombic Efficiency for Rechargeable Magnesium Metal Anodes in Prospective Electrolyte Solutions

• DOI: 10.1021/acsami.2c08008
• Publication Date: 2022-06-28T19:18:56Z
• Authors: Ran Attias; Ben Dlugatch; Omer Blumen; Keren Shwartsman; Michal Salama; Netanel Shpigel; Daniel Sharon
• Keywords: Stripping (fiber)

The design of electrolyte solutions that permit reversible and efficient Mg metal electrodeposition is one the most important tasks in development rechargeable batteries. Several types for anodes have been developed explored over last two decades. These investigations contributed to a better understanding deposition stripping processes. However, Coulombic efficiency (CE) reported these various systems their performance comparison another remained unclear. We used rigorous electrochemical methods accurately quantify average CE major considered secondary demonstrated how changes experiential protocols influence measurements, resulting inconsistent reports. Even though exceptional has variety systems, we discovered only candidate currently meets 99% benchmark during prolonged cycling procedure dichloro-complex, which first-generation Grignard-based solution. Second- third-generation Grignard-free chloride-free showed reasonable when currents densities were lowered. This comprehensive systematic investigation will help create more accurate treasure map potential anodes.