Oxide material and a fuel cell electrode containing said material
US7572532B2 · kind B2 · utility
5Cited by
7References
9Claims
0Family size
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Key dates
| Filing date | Mar 21, 2005 |
| Grant date | Aug 11, 2009 |
| Priority date | — |
| Expiry date | May 17, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/50
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The invention relates to an oxide material of general formula (I) A2−x−yA′XA″yM1−z M′Z04+δ, wherein A and A′ are independently a metal cation of a group formed by lanthanides and/or alkalis and/or alkaline earths, A″ is a cationic gap, i.e. a cation vacancy A and/or A′, M and M′ are independently a metal of a group formed by transition metals such as 0<y<0.30, preferably 0<y=0.20; 0<δ<0.25, preferably 0<δ<0.10; 0=x=1; and 0=z=1. An air electrode containing said material and an electric power producing device in the form of a fuel cell provided with at least one electrochemical cell comprising said electrode are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.