Title:
THERMOELECTRIC CONVERSION ELEMENT, THERMOELECTRIC MATERIAL AND MANUFACTURING METHOD
Document Type and Number:
Japanese Patent JP2021114509
Kind Code:
A
Abstract:
To provide a thermoelectric conversion element, a thermoelectric material and a manufacturing method which are suitable for mass production and which enable the sufficient reduction in thermal conductivity while suppressing the decrease in electric conductivity.SOLUTION: A thermoelectric material has a sintered compact comprising: a plurality of thermoelectric base material particles; and a thermal conductivity control layer interposed among the thermoelectric base material particles at least partially. The thermal conductivity control layer has a metal material or semiconductor material containing an element different from a constituent element of the thermoelectric base material particles. In the sintered compact, a total percentage of the metal material and semiconductor material is 0.1 mol% or more and 4.0 mol% or less. The sintered compact involves a part where no thermal conductivity control layer is interposed among the thermoelectric base material particles.SELECTED DRAWING: Figure 1
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Inventors:
TAZAKI YUZO
FUJII TAKAMITSU
TANAKA TSUTOMU
FUJII TAKAMITSU
TANAKA TSUTOMU
Application Number:
JP2020005463A
Publication Date:
August 05, 2021
Filing Date:
January 16, 2020
Export Citation:
Assignee:
TOYOSHIMA SEISAKUSHO KK
International Classes:
H01L35/26; H01L35/34
Attorney, Agent or Firm:
Patent Service Corporation Taiyo International Patent Office