Measurement of battery materials with laser diffraction - an overview

In this application note, Microtrac MRB provides an overview with examples of battery material measurements using laser diffraction. The optimization and safety of lithium-ion batteries in the reduction of cell aging is very important. One of the most critical factors is the particle size of the active materials like cathode, anode, and separator material. The particle size of the anode, cathode, and separator material affects the electrochemical performance of batteries. Smaller particle size will lead to shorter pathways in solid materials and decreased overall potential leading to improvements in the charge/discharge rate (C rate). Smaller particle size results in larger surface area which leads to a larger proportion of passivation at the solid electrolyte interphase which can reduce battery capacity.