Method for making cohesive assemblies of carbon
US8454924B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Sep 2, 2011 |
| Grant date | Jun 4, 2013 |
| Priority date | — |
| Expiry date | Sep 2, 2031 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01B2202/28
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Cohesive assemblies comprising carbon are prepared by obtaining carbon in the form of powder, particles, flakes, or loose agglomerates, dispersing the carbon in a liquid halogen by mechanical mixing and/or sonication, and substantially removing the liquid halogen, typically by evaporation, whereby the cohesive assembly of carbon is formed. The method is especially suitable for preparing free-standing, monolithic assemblies of carbon nanotubes in the form of films, wafers, or discs, having high carbon packing density and low electrical resistivity. The assemblies have various potential applications, such as electrodes in batteries or supercapacitors or as electromagnetic interference shielding materials.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.