Lab-scale chemical vapor deposition onto powders

In this paper, a laboratory chemical vapor deposition (CVD) reactor is described, which features an opposing screw rotating fluidized bed. The efficiently concentrates powdered reactants in the reaction zone while maintaining fluidization independent of powder properties. This allows for lab-scale CVD processing many small samples at high yields and without need re-adjustment parameters different samples. Alumina graphite were carbon-coated characterized lithium batteries. deposited carbon layer had density 1.84 g/ml capacity 225 mA h/g when cycled between 7 mV 0.9 V cells. Carbon coatings applied by onto particles found to be effective reducing surface reactions during cycling We suggest that utilization bed can effectively apply samples, with particular utility Li-ion battery materials.