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US 12,006,217 B2Granted
Method for producing microporous carbon material
AssigneeSkeleton Technologies AG
InventorsMarkarian Ohannes Yeghia Ohannes, Markus Klose, Daniel Weingarth, Jaan Leis
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Abstract
Processes for the production of microporous carbon material, for use in electrodes of supercapacitors and secondary batteries, in which particulate metal carbide material is fluidized with a halogen gas at a high temperature in a fluidized bed reactor, the halogen gas is desorbed at a lower temperature of 150° C. to at most 250° C. under vacuum, and then the material is passivated using hydrogen gas and then milled.
Claims13
A method for manufacturing microporous carbon material, the method comprising the steps of:
- a) in a fluidized bed reactor, fluidizing a granular metal carbide material with a halogen gas or a gas mixture containing a halogen gas at a temperature of including 800° C. up to and including 1300° C.;
- b) maintaining a product obtained from step a) at a temperature of including 150° C. to at most 250° C. and under vacuum at a pressure of including 1 mbar to including 300 mbar;
- and thereafter or subsequently
- c) maintaining the product under an atmosphere of a hydrogen gas or a gas mixture containing at least 30% by volume of hydrogen based on a total volume of the gas mixture at a temperature of including 800° C. up to and including 1300° C.;
- and
- d) comminuting the product to a D90 particle size of including 10 μm to including 30 μm and a D10 particle size of including 1.5 μm to 2 μm.
3 more elements
Dependencies are inferred from the claim text.