Nitrogen-containing carbon material and method of producing the same
US8034976B2 · kind B2 · utility
1Cited by
2References
31Claims
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Key dates
| Filing date | Sep 22, 2006 |
| Grant date | Oct 11, 2011 |
| Priority date | — |
| Expiry date | Oct 16, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention provides a nitrogen-containing carbon material characterized in that it satisfies a specific relational expression between the number ratio of nitrogen atoms to carbon atoms and the number ratio of hydrogen atoms to carbon atoms and has peaks in specific regions in the X-ray diffraction and in the laser Raman spectrum. The nitrogen-containing carbon material of the present invention can be produced by carbonizing azulmic acid in an inert gas atmosphere, and it is useful as an electrode material or the like because it has a high nitrogen content and a low hydrogen content.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.