True Density: A Powerful Quality Control Metric for Li-Ion Batteries
Gas pycnometry is commonly used by the Li-ion battery industry to check the skeletal density (also known as true density) of Li-ion battery electrode powders and slurries. The skeletal density of the powders is related to their purity and crystallinity as well as the energy storage density of the completed electrodes. The slurries can also be quickly and easily checked to determine their solids fraction. Such density measurements are important for quality control of raw ingredients and intermediate processed materials as well as final product performance.
Dr. Brian Rodenhausen is the Lead Scientist in the Particle and Materials Characterization group at Anton Paar USA. His research background focused on label-free characterization of the solid-liquid interface. He received his Ph.D. in chemical engineering from the University of Nebraska-Lincoln (UNL) and did post-doctoral work at UNL and the Leibniz Institute of Polymer Research in Dresden, Germany.
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