Anode material for a high temperature fuel cell
US7691524B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 15, 2005 |
| Grant date | Apr 6, 2010 |
| Priority date | — |
| Expiry date | Oct 14, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Anode material for a fuel cell which is to be operated at a high temperature above 700° C., which anode material is a porous composite material with a heterogeneous phase of solid materials which is formed by two reticular systems which penetrate each other in interlaced manner of particles connected by sintering, namely a first reticular system of ceramic material, and also a second reticular system of metallic material for the purpose of bringing about redox processes and an electrical conductivity, characterized in that the first reticular system is composed of large and small ceramic particles (10, 11) with average diameters d50 greater than 5 μm or smaller than 1 μm respectively, in that 50% to 80% of the first reticular system is formed from the large ceramic particles (10), and in that a composition of the anode material to be used is given by values which are selected by means of samples of this material and a test method, wherein the test method includes at least one redox cycle, an irreversible change in length of the selected sample adopting in this a value smaller than 0.002, preferably smaller than 0.0005, and the following measurements and evaluations being carried ou…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.