A method to quantify coating thickness and porosity of electrodes for lithium-ion-batteries

In experimental investigations a correlation between the electrodes' thermal characteristics and the geometry could be found, confirming that: First, thin films with a high porosity heat up faster, during thermal excitation, than thicker and more compressed films. Second, denser electrodes comprise a higher thermal conductivity and hence heat up and cool down slower than films comprising higher porosities. Both aspects are crucial findings and enable the development of innovative in-line electrode inspections systems.