Methods for making hollow carbon materials and active materials for electrodes
US9302914B2 · kind B2 · utility
64Cited by
1References
19Claims
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Key dates
| Filing date | Feb 28, 2014 |
| Grant date | Apr 5, 2016 |
| Priority date | — |
| Expiry date | May 8, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In an example of a method for making a hollow carbon material, a carbon black particle is obtained. The carbon black particle has a concentric crystallite structure with an at least partially amorphous carbon core and a graphitic carbon shell surrounding the at least partially amorphous carbon core. The carbon black particle is exposed to any of a heat treatment, a chemical treatment, or an electrochemical treatment which removes the at least partially amorphous carbon core to form the hollow carbon material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.