[24p-F407-1~17] 22.1 Joint Session M "Phonon Engineering"

△ [24p-F407-11] Fabrication and Characterization of Ge-Sensitized Thermal Cells with LiCl, NaCl, KCl Supporting Electrolytes

〇(M2)Haotong Song¹, Yasuhide Mochizuki¹, Toshihiro Isobe¹, Akira Nakajima¹, Sachiko Matsushita¹ (1.Tokyo Tech.)

Keywords:thermoelectric conversion, semiconductor

As we aim for a decarbonized society, the spread of renewable energy, one of the SDGs, has become an urgent issue. We have focused on thermal energy, which is abundant in Japan, as a source of renewable energy, and have proposed semiconductor sensitized thermal power generation, which was inspired by the power generation mechanism of dye-sensitized solar cells. In this technology, power is generated by the thermally excited charge generated by the absorption of thermal energy by the semiconductor, which is expected to be more versatile than conventional thermoelectric conversion technologies because there are no restrictions on design or installation location. In this study, we focused on a copper-ion electrolyte-based Ge sensitized thermal cell (STC) and evaluated the performance of three types of electrolytes with LiCl, NaCl, and KCl as supporting electrolytes respectively to investigate the effect of supporting electrolytes on the performance of the battery.