The application relates to the technical field of
ion thermal electric conversion, and discloses an
ion thermal electric device with continuous power generation characteristics and a preparation method thereof, which comprises the following steps: taking a
polymer matrix and an
ionic liquid according to a
mass ratio, dissolving the
polymer matrix and the
ionic liquid in an
organic solvent, heating and stirring until the
polymer matrix and the
ionic liquid are dissolved, and forming a clear solution; taking
iron chloride and
ferrous chloride according to a
molar ratio, dissolving the
iron chloride and the
ferrous chloride in deionized water to prepare a
redox inorganic
salt solution; adding the
redox inorganic
salt solution into the clear solution, and stirring and mixing the solution under
temperature control; pouring the
mixed solution into a mold,
vacuum drying the
mixed solution into a film, and adhering the film to an
electrode after
cutting. The
ion thermal electric device prepared based on the method transfers electric charges by relying on Faraday
redox reactions of iron ions and
ferrous ions at an
electrode interface during work. The application breaks the polarization and flow interruption limitation of a traditional double electric layer
capacitor mechanism, realizes long-term and stable continuous chemical power generation of the device, and meets the
sustainable power supply demand of microelectronic sensing equipment and the like.