Pyrolytic carbon black composite and method of making the same
AssigneeUT-Battelle, LLC
InventorsAmit K. Naskar, Mariappan Parans Paranthaman
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Abstract
A method of recovering carbon black includes the step of providing a carbonaceous source material containing carbon black. The carbonaceous source material is contacted with a sulfonation bath to produce a sulfonated material. The sulfonated material is pyrolyzed to produce a carbon black containing product comprising a glassy carbon matrix phase having carbon black dispersed therein. The pyrolysis can be conducted at a temperature from 1100° C. to 1490° C. A method of making a battery electrode and a lithium ion or sodium ion battery is also disclosed.
Claims26
A method of recovering carbon black, comprising the steps of:
- providing a carbonaceous source material containing carbon black;
- contacting the carbonaceous source material with a sulfonation bath to produce a sulfonated material;
- and,
- pyrolyzing the sulfonated material at a temperature of from 1400 to 1600° C. without any activation to produce a layered carbon black containing product comprising a glassy carbon matrix phase having carbon black dispersed therein, the layered carbon black containing product having an interlayer spacing of from 0.4 to 0.5 nm and pores of from 1 to 20 nm, and the carbon black containing product having a specific surface area less than 100 m2/g.
Dependencies are inferred from the claim text.