Influence of Chloride and Electrolyte Stability on Passivation Layer Evolution at the Negative Electrode of Mg Batteries Revealed by operando EQCM-D.

ABSTRACT: Rechargeable magnesium batteries are promising for future energy storage. However, among other challenges, their practical application is hindered by low coulombic efficiencies of magnesium plating and stripping. Fundamental processes such as the formation, structure, and stability of passivation layers and the influence of different electrolyte components on them are still not fully understood. In this work, we gain unique insights into the initial Mg plating and stripping cycles by comparing magnesium bis(trifluoromethanesulfonyl)imide (Mg(TFSI)₂)- and magnesium tetrakis(hexafluoroisopropyloxy)borate (Mg[B(hfip)₄]₂)-based electrolytes, each with and without MgCl₂, on gold electrodes by highly sensitive operando electrochemical quartz crystal mi

SUBMITTER: Schick BW 

PROVIDER: S-EPMC11656148 | biostudies-literature | 2024 Dec

REPOSITORIES: biostudies-literature