Mesoporous metal oxide microsphere electrode compositions and their methods of making
US8911904B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 5, 2012 |
| Grant date | Dec 16, 2014 |
| Priority date | — |
| Expiry date | Dec 27, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Compositions and methods of making are provided for treated mesoporous metal oxide microspheres electrodes. The compositions comprise (a) microspheres with an average diameter between 200 nanometers (nm) and 10 micrometers (μm); (b) mesopores on the surface and interior of the microspheres, wherein the mesopores have an average diameter between 1 nm and 50 nm and the microspheres have a surface area between 50 m2/g and 500 m2/g, and wherein the composition has an electrical conductivity of at least 1×10−7 S/cm at 25° C. and 60 MPa. The methods of making comprise forming a mesoporous metal oxide microsphere composition and treating the mesoporous metal oxide microspheres by at least one method selected from the group consisting of: (i) annealing in a reducing atmosphere, (ii) doping with an aliovalent element, and (iii) coating with a coating composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.