'Thermoelectric Device' Developed with Domestic Technology for Over 40 Years of Use
[Asia Economy Reporter Junho Hwang] Domestic researchers have developed a thermoelectric device that maintains performance without issues even after 40 to 50 years of use. If follow-up research leads to the development of thermoelectric devices for the space industry, it is expected to become another significant achievement showcasing our space technology to the international community.
The Korea Institute of Energy Research announced on the 23rd that the research team led by Dr. Sanghyun Park from the Energy Network Laboratory developed an "ultra-high reliability mid-to-high temperature thermoelectric device."
The research team developed a thermoelectric device by applying conductive indium tin oxide, which exhibits stable properties at high temperatures, to the surface of the thermoelectric material to form a metallization layer. Thermoelectric devices are energy devices that convert heat into electricity. The device developed by the research team has characteristics that surpass the limitations of existing thermoelectric devices.
The research team conducted long-term reliability tests by applying heat up to 500 degrees Celsius to the developed device and reported that there was almost no output degradation. In contrast, existing titanium-based thermoelectric devices showed a decrease in output. In particular, the newly developed device was found to suppress diffusion degradation by about 80% compared to existing devices.
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Dr. Sanghyun Park stated, "The oxide-based mid-to-high temperature thermoelectric device technology developed this time is a core element technology that can satisfy the ultra-high reliability energy generation system required for continuous operation over 40 to 50 years in the space industry," adding, "Based on the research results, we will conduct focused follow-up research aiming at Korean-type thermoelectric devices for the space industry."
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