N-type and P-type series integrated hydrogel thermoelectric cells for low-grade heat harvesting.

ABSTRACT: Low-grade heat is abundant and ubiquitous, but it is generally discarded due to the lack of cost-effective recovery technologies. Ion thermoelectric cells are an affordable and straightforward approach of converting low-grade heat into usable electricity for sustainable power. Despite their potential, ion thermoelectric cells face challenges such as limited Seebeck coefficient and required series integration. Here, we demonstrate that the N-type and P-type conversion of ion thermoelectric cells can be achieved through the phase transition of temperature-sensitive hydrogel containing the triiodide/iodide redox couple. Through the strong interaction between the hydrophobic region of the hydrogel and triiodide, the hydrophobic side selectively captures triiodide and the hydrophilic side repel

SUBMITTER: Shen J 

PROVIDER: S-EPMC11519491 | biostudies-literature | 2024 Oct

REPOSITORIES: biostudies-literature