What Is Electrochemical Imaging?

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Electrochemical materials — such as battery electrodes, fuel-cell catalysts, corrosion layers, and electrolytic coatings — are characterized by their micro- and nano-scale structure [1, 2]. Understanding this structure is crucial for explaining macroscopic performance metrics such as capacity, efficiency, and lifetime.

Electrochemical imaging refers to the acquisition and analysis of microscopy, spectroscopy, and tomography images (and other 2-D/3D imaging modalities) of these materials to extract quantitative structural information: particle size distributions, phase fractions, porosity, tortuosity, connectivity, and surface chemistry. Acquisitions range from single static snapshots to time-resolved image sequences — repeated frames or full video captured during in-situ or operando experiments — so structural information often carries a temporal dimension alongside the spatial one.