BÜCHI Labortechnik AG

Nano Spray Dryer for ceramic applications - Case Study


Courtesy of BÜCHI Labortechnik AG

Customer: Battery Research Center of Green Energy, Taiwan
The Battery Research Center of Green Energy (BRCGE) in Ming Chi University of Technology (MCUT) is a unique organization focusing especially on the research and development of future green energy technologies for industries.

Application: Synthesis macro/nano spherical SiO2 composite for Lithium Ion Battery applications
Spray drying is an established method to produce granulated material by converting a suspension into solid macro/nano spherical particles with precise specifications. If the used suspension consists of nanoparticles, the resulting agglomerated particles comprise nanoparticles to form a nanostructured powder in the submicrometer/micrometer size range. Through this approach, the properties of nanoscale particles are preserved into micrometer particles. In energy technology research, those nano-size SiO2 powders are important to allow a faster Li+ diffusion across the particle. They enable a macro/nano spherical morphology without inducing high irreversible capacity loss, but also maintains high tap-density.

Equipment: Nano Spray Dryer B-90 HP
The possibility to prepare submicron sized particles out of an aqueous or organic-based suspension and the multiple accessories available make the Nano Spray Dryer B-90 HP an appreciated technology to produce fine hierarchical particles for energy storage applications (LIB).

Benefit / Conclusion: Unprecedentedly fine particles
The nano size dimension, the spherical shape and the macro/nano hierarchical structure of the granule powders is a winning point for the processing of advanced energy materials. The present research aiming to shape an active material can easily be pursued to prepare macro/nano SiO2 composite powders (used as the anode in LIB) thanks to the Nano Spray Dryer B-90 HP.

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