Thermoelectric conversion module
US-2019103536-A1 · Apr 4, 2019 · US
Thermoelectric conversion material, thermoelectric conversion element, thermoelectric conversion module, and method for manufacturing thermoelectric conversion
US11380831B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11380831-B2 |
| Application number | US-201916975268-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 27, 2019 |
| Priority date | Feb 27, 2018 |
| Publication date | Jul 5, 2022 |
| Grant date | Jul 5, 2022 |
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Abstract
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A thermoelectric conversion material consists of a non-doped sintered body of a magnesium-based compound, in which an electric resistance value is 1.0×10−4 Ω·m or less. The magnesium-based compound is preferably one or more selected from a MgSi-based compound, a MgSn-based compound, a MgSiSn-based compound, and a MgSiGe-based compound.
First claim
Opening claim text (preview).
What is claimed is: 1. A thermoelectric conversion material consisting of: a non-doped sintered body of a magnesium-based compound, wherein an electric resistance value is 1.0×10 −4 Ω·m or less, the magnesium-based compound contains 0.1 mass % or more and 10.0 mass % or less of silicon oxide, and the magnesium-based compound is one or more selected from a MgSi-based compound, a MgSn-based compound, a MgSiSn-based compound, and a MgSiGe-based compound. 2. The thermoelectric conversion material according to claim 1 , wherein the thermoelectric conversion material is n-type. 3. The thermoelectric conversion material according to claim 1 , wherein the magnesium-based compound is one or more selected from a MgSi-based compound, a MgSn-based compound, and a MgSiGe-based compound. 4. The thermoelectric conversion material according to claim 1 , wherein the magnesium-based compound is a sintered body of a sintering raw material containing silicon oxide powder and non-doped magnesium-based compound powder. 5. A thermoelectric conversion element comprising: the thermoelectric conversion material according to claim 1 ; and electrodes respectively joined to one surface of the thermoelectric conversion material and the other surface opposite the one surface. 6. A thermoelectric conversion module comprising: the thermoelectric conversion element according to claim 5 ; and terminals respectively joined to the electrodes of the thermoelectric conversion element. 7. A method for manufacturing the thermoelectric conversion material according to claim 1 , the method comprising: a sintering raw material powder forming step of mixing a silicon oxide powder with a non-doped magnesium-based compound powder to obtain a sintering raw material powder; and a sintering step of heating the sintering raw material powder while applying pressure to form a sintered body. 8. The method for manufacturing the thermoelectric conversion material according to claim 7 , wherein an addition amount of the silicon oxide powder in the sintering raw material powder forming step is in a range of 0.1 mass % or more and 10.0 mass % or less.
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Classifications
- H10N10/8556Primary
comprising compounds containing germanium or silicon · CPC title
- H10N10/851Primary
comprising inorganic compositions · CPC title
Germanium oxides, germanates or oxide forming salts thereof, e.g. copper germanate · CPC title
micrometer sized, i.e. from 1 to 100 micron · CPC title
based on non-oxide ceramics · CPC title
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- What does patent US11380831B2 cover?
- A thermoelectric conversion material consists of a non-doped sintered body of a magnesium-based compound, in which an electric resistance value is 1.0×10−4 Ω·m or less. The magnesium-based compound is preferably one or more selected from a MgSi-based compound, a MgSn-based compound, a MgSiSn-based compound, and a MgSiGe-based compound.
- Who is the assignee on this patent?
- Mitsubishi Materials Corp
- What technology area does this patent fall under?
- Primary CPC classification H10N10/8556. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Jul 05 2022 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).