Abstract
In order to successfully implement promising new battery materials at industrial production rates, it is important to provide suitable recipes for information. Typically, active materials are processed as dispersions in liquid-phase together with further additives aiming at the improvement of battery slurry properties. Interactions between particles and dispersing liquid(s) are decisive for electrode manufacturing and performance. Hence, we combined Hansen parameter approach with analytical centrifugation for dispersing SiNx nanoparticles as promising next generation battery material. Suitable probe liquids were chosen for the identification of beneficial dispersion properties. Electron microscopy was employed for a first qualitative plausibility analysis. Diacetone alcohol showed favorable dispersion properties for SiNx particles while toluene was found to be not suitable. Our approach and findings are an excellent starting point for the systematic characterization and evaluation of new battery materials with regard to processability.
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