Thermoelectric conversion material and thermoelectric conversion device
US6777609B2 · kind B2 · utility
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4Claims
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Assignee
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Key dates
| Filing date | Mar 18, 2002 |
| Grant date | Aug 17, 2004 |
| Priority date | — |
| Expiry date | Nov 20, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01P2006/80
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The invention provides a thermoelectric conversion material which is low toxic and can be used at a high temperature of 500° C. or higher without variation in performance, and a thermoelectric conversion device containing the material. The thermoelectric conversion material is formed of an oxide represented by (Ca3-xMx)Co4O9 (M: Sr or Ba, 1.2>x>0.5).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.