Graphite carbon powder, and method and apparatus for producing the same
US6783747B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 7, 2000 |
| Grant date | Aug 31, 2004 |
| Priority date | — |
| Expiry date | Oct 24, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An object of the present invention is to provide a method for producing at high productivity graphite powder containing no impurity, in which carbon powder material is effectively heated for graphitization; and an apparatus for producing the graphite powder. Carbon powder is placed in a carbon-made container, and the container is heated through a supply of electricity to the container. An apparatus comprising a heating chamber is provided. The container can be continuously conveyed to the apparatus, heated in the apparatus, and removed from the apparatus. Through use of the apparatus, graphite carbon powder which is suitably employed in a lithium-ion secondary battery can be produced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.