Research Article
Quantifying Cell-to-Cell Variations in Lithium Ion Batteries
Table 1
List of nominal parameters used in the impedance model.
| Parameter | Cathode | Separator | Anode |
| Diffusion coefficient in the solid particles (m2/s) | -12 | — | -14 | Solid phase conductivity (S/m) | 10 | | 100 | Nominal porosity | 0.3 | 0.45 | 0.4382 | Filler fraction | 0.15 | | 0.0566 | Transfer coefficient | 0.5 | | 0.5 | Nominal particle size (μm) | 8.5 | | 12.5 | Equilibrium exchange current density (A/m2) | 10 | | 10 | Double layer capacitance for the electrode (F/m2) | 0.2 | | 0.2 | Double layer capacitance for the surface film (F/m2) | 0.02 | | 0.02 | Resistance for the surface film (Ohm-m2) | -4 | | -4 | Tortuosity | 2.3 | 1.5 | 4.1 | Nominal electrode thickness (μm) | 70 | 25 | 73.5 | Stoichiometric window | 0.99–0.52 | | 0.7952–0.01 | Initial concentration of the electrolyte (M) | | 1 | | Conductivity of the electrolyte (S/m) | | 10 | | Diffusivity in the electrolyte (m2/s) | | -10 | | Transport number | | 0.435 | | Nominal room temperature | | 298 K | |
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