Magnesium batteries are being investigated as an alternative battery technology to the popular lithium-ion batteries currently available on market. Many advantages exist of coupling the magnesium metal as anode, for instance, as it has a high volumetric capacity, low anodic voltage, is stable within a wide electrochemical window and is relatively inexpensive. Using a multiphysics modelling approach, impedance is simulated at the Mg anode interface to determine specific contributions to the overall impedance in anode materials. Spectroscopy using acoustic waves to monitor the anode-electrolyte interface can be conducted while electrochemical cycling and impedance measurements are simultaneously collected. This allows for characterization of plating/stripping of Mg and an in-depth evaluation of the faradic contribution to the total current collected, which is crucial towards having a better understanding of anode-electrolyte interfaces in magnesium batteries.

Investigations in magnesium battery technology

256th National Meeting (2018)

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