[12p-N106-1~11] 22.1 Joint Session M "Phonon Engineering"

[12p-N106-11] Design of a sensitised thermal cell driven at room temperature

Haruki Kohata¹, Mitsugu Obinata², Takumi Ikeda¹, Hayato Sekiya¹, Biao Mei³, Ye Wang³, Kazushi Mizukoshi³, Toshihiro Isobe¹, Akira Nakajima¹, 〇Sachiko Matsushita¹ (1.Tokyo Tech., 2.Tohnic Co., 3.Sanoh Industrial Co.)

Keywords:zero carbon emission, thermal energy conversion, dye-sensitized solar cell

The sensitized thermal cell (STC) is a new thermal energy conversion technology that uses phonon excited charges in a semiconductor to redox electrolyte ions and generate electricity. An interesting feature of the STC is that when it is switched off and left in a heat source, it enters a different equilibrium state to the one in which it was discharged, and can be discharged again. In this study, we focused on the fact that the transition to the equilibrium state is due to the ion transfer in the electrolyte, and investigated the power generation behaviour of the electrolyte with different thicknesses. As a result, we were able to repeatedly confirm an open circuit voltage of 300 mV and a discharge time of 100 min at 30°C.