A damage-free way to gauge the health of next-gen batteries for electric vehicles

Researchers from Tokyo Metropolitan University have demonstrated that electrochemical impedance spectroscopy (EIS) can be a powerful non-destructive tool to study the degradation mechanisms of all-solid-state lithium metal batteries. They studied ceramic-based all-solid-state Li metal batteries prepared by aerosol deposition and heating, identifying the specific interface responsible for the drop in performance. Published in ACS Applied Materials & Interfaces, their work accurately highlights the engineering hurdles that need to be overcome to bring these top-in-class batteries to the market.

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