Visualization of Battery Slurry Powder Flow by Electrical Tomography

This study presents the application of electrical tomography (ET) in analyzing battery slurry powder flow. ET, a non-destructive and non-contact technique, reconstructs images of battery slurry by measuring impedance or capacitance, which is categorized into electrical impedance tomography (EIT) and electrical capacitance tomography (ECT). ET allows for the visualization of particle dispersion, aggregation, and volume fraction within the battery slurry. Implementing ET, which leads to better control and optimization of the battery slurry mixing process, enhances the uniformity and quality of the battery. The ET setup includes impedance analyzer, capacitance meter, multiplexer, sensor, and control software, which work together to provide real-time insights into the slurry’s characteristics, potentially improving battery efficiency and performance.