A method for producing a carbon material from lignin
AssigneeStora Enso OYJ
InventorsAbhishek Shetty, Vilhelm Olsson, Mario Wachtler
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Abstract
The present invention relates to a method for producing a carbon material, the method comprising the steps of: providing lignin, providing at least one thermoset resin, contacting lignin with the at least one thermoset resin so as to obtain a lignin-thermoset resin material, curing the lignin-thermoset resin material, and subjecting the cured lignin-thermoset resin material to heat treatment so as to obtain a carbon material. The obtained carbon material is suitable for use as active material in a negative electrode of a secondary battery.
Claims22
A method for producing a carbon material from lignin, the method comprising the steps of:
- a) providing lignin;
- b) providing at least one thermoset resin;
- c) contacting the lignin with the at least one thermoset resin so as to obtain a lignin-thermoset resin material;
- d) optionally drying the lignin-thermoset resin material;
- e) curing the lignin-thermoset resin material or the dried lignin-thermoset resin material so as to obtain a cured lignin-thermoset resin material;
- and
- f) subjecting the cured lignin-thermoset resin material to a heat treatment at one or more temperatures in the a range of from 300° C. to 3000° C., wherein the heat treatment is carried out for a total time in a range of from 30 minutes to 10 hours, so as to obtain a carbon material.
(canceled)
Dependencies are inferred from the claim text.