Multifunctional energy harvesting and storage textile technology based on thermionic effect

• Type: Article in International Scientific Journal
• Date: 2023

Authors

Costa, RS (Author) Other; Pires, AL (Author) Other; pereira, a. m. (Author) FCUP; Clara Pereira (Author) FCUP

Journal

Title: Journal of Power Sources

Vol. 587

ISSN: 0378-7753

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 0 Citations

Scopus - 0 Citations

Other information

Authenticus ID: P-00Z-5E6

DOI: 10.1016/j.jpowsour.2023.233712

Abstract (EN): The development of effective dual-function energy harvesting/storage technologies is a milestone demand for the emerging generation of low-consumption autonomous electronics. This work reports the development of a multifunctional thermionic power textile device merging thermal energy harvesting and electrochemical energy storage for application in self-powered systems. An everyday cost-effective non-conductive natural fabric was transformed into an all-solid-state textile-based thermally-chargeable supercapacitor (T-TCSC) via dyeing with multiwalled carbon nanotubes and subsequent assembly with H3PO4-doped poly(vinyl alcohol) (PVA) solid-gel polyelectrolyte.When subjected to an out-of-plane temperature gradient, the T-TCSC was able to convert the thermal energy into electrical output and store the harvested energy. A Soret coefficient of 1.85 mV K-1 was obtained, which is the highest value achieved so far for TCSCs developed on non-conductive textile substrates reported in literature and-10x higher than those of conventional thermoelectric devices. Additionally, a maximum output potential

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 14