Pyrolytic carbon black composite and method of making the same
US10985372B2 · kind B2 · utility
0Cited by
21References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 6, 2019 |
| Grant date | Apr 20, 2021 |
| Priority date | — |
| Expiry date | May 6, 2039 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.