THERMOELECTRIC POWER GENERATION DEVICE

To provide a thermoelectric power generation device that can be used continuously for a long period of time while improving power generation efficiency.SOLUTION: A thermoelectric power generation device 1 includes a thermal battery 10 in which a first electrode 11 and a second electrode 12 face each other via an electrolyte 13, and which is configured to generate an oxidation-reduction potential difference between the first electrode 11 and the second electrode 12 in response to a temperature change in the first electrode 11 and the second electrode 12 to output an electromotive force, and a control unit 40 that controls the flow of fluid to the inside or outside of the thermal battery 10, and the plurality of thermal batteries 10A, 10B are arranged in parallel, and the control unit 40 switches each of the plurality of thermal batteries 10A, 10B between a first state in which a high-temperature fluid is introduced as a fluid and a second state in which a low-temperature fluid is introduced as a fluid.SELECTED DRAWING: Figure 1 【課題】発電効率を高めつつ長時間に亘って継続利用可能な熱電発電装置を提供する。【解決手段】熱電発電装置１は、第１電極１１及び第２電極１２が電解質１３を介して対向し、第１電極１１及び第２電極１２の温度変化に伴って第１電極１１と第２電極１２との間に酸化還元電位の差を生じさせて起電力を出力するように構成された熱電池１０と、熱電池１０の内部または外部に対する流体の流通を制御する制御部４０と、を備え、複数の熱電池１０Ａ，１０Ｂは、並列に配置されており、制御部４０は、複数の熱電池１０Ａ，１０Ｂの夫々に対し、流体として高温流体を導入する第１状態と、流体として低温流体を導入する第２状態とに切り替える。【選択図】図１