Thermoelectric conversion element, thermoelectric conversion structure, thermoelectric conversion module, thermoelectric conversion system, and temperature control system

A compound film with a controlled atomic ratio of Mg to Sb and Bi on the surface of thermoelectric converters improves corrosion resistance, ensuring long-term thermoelectric performance.

WO2026094629A1PCT designated stage Publication Date: 2026-05-07PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD
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Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD
Filing Date
2025-10-15
Publication Date
2026-05-07

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Abstract

This thermoelectric conversion structure 1a comprises a thermoelectric conversion body 10 and a compound film 20. The thermoelectric conversion body 10 contains Mg and at least one selected from the group consisting of Sb and Bi. The compound film 20 is disposed along a surface 10s of the thermoelectric conversion body 10. The compound film 20 contains Mg and at least one selected from the group consisting of F and O. The compound film 20 satisfies, for example, the condition of 0 ≤ α / β ≤ 0.6. α is the sum (unit: atom%) of the content of Sb based on the number of atoms and the content of Bi based on the number of atoms. β is the content (unit: atom%) of Mg based on the number of atoms.
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Citation Information

Patent Citations

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  • Sublimation protection coating for thermoelectric materials and devices

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