Reversible bipolar thermopower of ionic thermoelectric polymer composite for cyclic energy generation.

ABSTRACT: The giant thermopower of ionic thermoelectric materials has attracted great attention for waste-heat recovery technologies. However, generating cyclic power by ionic thermoelectric modules remains challenging, since the ions cannot travel across the electrode interface. Here, we reported a reversible bipolar thermopower (+20.2 mV K^-1 to -10.2 mV K^-1) of the same composite by manipulating the interactions of ions and electrodes. Meanwhile, a promising ionic thermoelectric generator was proposed to achieve cyclic power generation under a constant heat course only by switching the external electrodes that can effectively realize the alternating dominated thermodiffusion of cations and anions. It eliminates the necessity to change the thermal contact between material and

SUBMITTER: Chi C 

PROVIDER: S-EPMC9852232 | biostudies-literature | 2023 Jan

REPOSITORIES: biostudies-literature