Solid electrolyte material and lithium battery
US-10128533-B2 · Nov 13, 2018 · US
Thermoelectric conversion material and thermoelectric conversion element using the same
US2019348593A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2019348593-A1 |
| Application number | US-201916384392-A |
| Country | US |
| Kind code | A1 |
| Filing date | Apr 15, 2019 |
| Priority date | May 9, 2018 |
| Publication date | Nov 14, 2019 |
| Grant date | — |
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Abstract
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The present invention provides a p-type Ba—Cu—Ge clathrate thermoelectric conversion material having high thermoelectric conversion performance index.
First claim
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1 . A thermoelectric conversion material represented by the following chemical formula (I): Ba 8+a Cu 6−b Ge 40+6 (I) where the value of a is not less than 0.1 and not more than 0.47; the value of b is not less than 0 and not more than 0.43; the thermoelectric conversion material has a clathrate crystal structure; and the thermoelectric conversion material is of p-type. 2 . The thermoelectric conversion material according to claim 1 , wherein the value of a is not less than 0.28 and not more than 0.47. 3 . The thermoelectric conversion material according to claim 1 , wherein the value of b is not less than 0.07 and not more than 0.3. 4 . The thermoelectric conversion material according to claim 1 , wherein the value of a is not less than 0.28 and not more than 0.47; and the value of b is not less than 0.07 and not more than 0.3. 5 . A thermoelectric conversion element, comprising: a p-type thermoelectric conversion part; an n-type thermoelectric conversion part; a first electrode; a second electrode: and a third electrode, wherein one end of the p-type thermoelectric conversion part and one end of the n-type thermoelectric conversion part are electrically connected to each other through the first electrode; another end of the p-type thermoelectric conversion part and another end of the n-type thermoelectric conversion part are electrically connected to the second electrode and the third electrode, respectively; and the p-type thermoelectric conversion part is formed of a first thermoelectric conversion material represented by the following chemical formula (I): Ba 8+a Cu 6−b Ge 40+6 (I) where the value of a is not less than 0.1 and not more than 0.47; the value of b is not less than 0 and not more than 0.43; the first thermoelectric conversion material has a clathrate crystal structure; and the first thermoelectric conversion material is of p-type. 6 . The thermoelectric conversion element according to claim 5 , wherein the n-type thermoelectric conversion part is formed of a second thermoelectric conversion material represented by the chemical formula Ba 8 Cu 6−x Ge 4.0+x (where 0≤x≤0.7). 7 . The thermoelectric conversion element according to claim 5 , wherein the value of a is not less than 0.28 and not more than 0.47. 8 . The thermoelectric conversion element according to claim 5 , wherein the value of b is not less than 0.07 and not more than 0.3. 9 . The thermoelectric conversion element according to claim 5 , wherein the value of a is not less than 0.28 and not more than 0.47; and the value of b is not less than 0.07 and not more than 0.3.
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Classifications
Alloys based on an alkali or an alkaline earth metal · CPC title
Thermal properties · CPC title
by d-values or two theta-values, e.g. as X-ray diagram · CPC title
by UV- or VIS- data · CPC title
by peak-intensities or a ratio thereof only · CPC title
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- What does patent US2019348593A1 cover?
- The present invention provides a p-type Ba—Cu—Ge clathrate thermoelectric conversion material having high thermoelectric conversion performance index.
- Who is the assignee on this patent?
- Panasonic Ip Man Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification C01G17/006. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Thu Nov 14 2019 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).