Method for preparing fluorine/nitrogen co-doped graphitized carbon microspheres with high volumetric specific capacitance
US9613759B2 · kind B2 · utility
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Key dates
| Filing date | Mar 30, 2015 |
| Grant date | Apr 4, 2017 |
| Priority date | — |
| Expiry date | Jul 21, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/13
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention provides a method for preparing fluorine/nitrogen co-doped graphitized carbon microspheres with high volumetric specific capacitance, which is a simple process with moderate reaction conditions, high reproducibility, and low costs. The fluorine/nitrogen co-doped graphitized carbon microspheres prepared according to the present invention have a very high density, exhibit good electrochemical properties in an alkaline environment, as well as very high volumetric specific capacitance and good cyclic stability, and is of great importance in improving the properties of the electrode material for a capacitor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.