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Title:
THERMOELECTRIC CONVERSION ELEMENT AND THERMOELECTRIC CONVERSION MODULE
Document Type and Number:
WIPO Patent Application WO/2020/003554
Kind Code:
A1
Abstract:
Provided is novel technology for more reliably reducing electrical resistance in a thermoelectric conversion element that uses a MgSbBiTe-based thermoelectric conversion material. A thermoelectric conversion element according to the present disclosure is provided with a first electrode, a second electrode, a first intermediate layer, a second intermediate layer, and a thermoelectric conversion layer. The first intermediate layer is provided between the thermoelectric conversion layer and the first electrode, and is in contact with the thermoelectric conversion layer. The first electrode is in contact with the first intermediate layer. The second intermediate layer is provided between the thermoelectric conversion layer and the second electrode, and is in contact with the thermoelectric conversion layer. The second electrode is in contact with the second intermediate layer. The first electrode and the second electrode are formed of a CuZn alloy. The thermoelectric conversion layer is formed of a MgSbBiTe-based thermoelectric conversion material. The composition of the first intermediate layer is different from both the composition of the first electrode and the composition of the thermoelectric conversion layer. The composition of the second intermediate layer is different from both the composition of the second electrode and the composition of the thermoelectric conversion layer.

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Inventors:
UEHARA MIHO
KANEKO YURIKO
ONO ATSUSHI
KAWABE MASASHIGE
KANNO TSUTOMU
TAMAKI HIROMASA
SATO HIROKI
Application Number:
PCT/JP2018/041801
Publication Date:
January 02, 2020
Filing Date:
November 12, 2018
Export Citation:
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Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
H01L35/08; B22F7/08; C22C1/04; C22C12/00; H01L35/16; H01L35/32; H01L35/34
Domestic Patent References:
WO2017072982A12017-05-04
Foreign References:
JP2017085050A2017-05-18
JP2014509074A2014-04-10
JP2013161948A2013-08-19
JP2018190953A2018-11-29
JPS6127281B21986-06-25
US20170117453A12017-04-27
Other References:
D. KRAEMER: "High thermoelectric conversion efficiency of MgAgSb-based material with hot-pressed contacts", ENERGY ENVIRON. SCI., vol. 8, 2015, pages 1299 - 1308
See also references of EP 3817073A4
Attorney, Agent or Firm:
KAMATA Kenji et al. (JP)
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