Advanced Characterization Techniques for Battery Cells and Modules

  • Electrochemical impedance spectroscopy (EIS)
    • EIS on large Li-ion cells: direct comparison of DC resistances and EIS
    • Assess the applicability for diagnostics on battery cells and modules
  • Pressure & temperature foils, IR cameras
    • Build up on existing dataset and continue with own data collection
    • Link pressure data to ageing and diagnostics
  • Thermal characterization of battery cells
    • Entropy measurements on full and half-cells
    • IR and T-foils
    • Thermal modelling
    • Can we calculate temperature inside battery module if we understand heat generation at cell level? We build small battery pack of cylindrical cells and wrap these with temperature foils, and run duty cycles in 25 deg chamber. This should help us build model and validate cell to module thermal characteristics. 
  • Strain gauge
    • Can these sensors provide additional value in battery diagnostics?
    • How do these complement pressure foils?
Published Nov. 17, 2024 10:23 PM - Last modified Oct. 22, 2025 12:30 PM

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