Conducting polymer-based flexible thermoelectric materials and devices: From mechanisms to applications

Advances in the design and assembly of flexible thermoelectric device

Ultra-high electrical conductivity in filler-free polymeric hydrogels toward thermoelectrics and electromagnetic interference shielding.

A comprehensive review on the output voltage/power of wearable thermoelectric generators concerning their geometry and thermoelectric materials

Mechanically Robust and Flexible Films of Ionic Liquid-Modulated Polymer Thermoelectric Composites

A flexible spring-shaped architecture with optimized thermal design for wearable thermoelectric energy harvesting

The design of effective energy systems is crucial for the development of flexible and wearable electronics. Regarding direct converting heat into electricity, thermoelectrochemical cells (TECs) are particularly suitable for low-grade heat harvesting to enable flexible and wearable applications, despite the fact that the electrolyte leakage and complex packaging issues of conventional liquid-based TECs await to be further addressed. Herein, a quasi-solid-state TEC is assembled from polyacrylamide/acidified-single-walled carbon nanotubes (PAAm/a-SWCNTs) composite hydrogel, developed via a facile in situ free-radical polymerization route with tin (IV) chloride/tin (II) chloride (Sn4+/Sn2+) as a redox couple. The as-fabricated TEC with 0.6 wt% a-SWCNTs content presents a large thermoelectrochemical Seebeck coefficient of 1.59 ± 0.07 mV K-1, and exhibits excellent stability in thermoelectrochemical performance against large mechanical stretching and deformation. Owing to this superior stretchability, the as-fabricated TEC is further assembled into an energy-autonomous strain sensor, which shows high sensitivity. The strategy of utilizing quasi-solid-state TEC for energy-autonomous strain sensing unveils the great potential of heat-to-electricity conversion in flexible and wearable electronics.

A flexible quasi-solid-state thermoelectrochemical cell with high stretchability as an energy-autonomous strain sensor.

Thermoelectric generators (TEGs) demonstrate great potential for flexible and wearable electronics due to the direct electrical energy harvested from waste heat. Good wearability requires high mech...

https://www.chinesechemsoc.org/doi/pdf/10.31635/ccschem.021.202101077

Haicai Lv

Papers

A flexible spring-shaped architecture with optimized thermal design for wearable thermoelectric energy harvesting

A flexible quasi-solid-state thermoelectrochemical cell with high stretchability as an energy-autonomous strain sensor.

Mechanically Robust and Flexible Films of Ionic Liquid-Modulated Polymer Thermoelectric Composites

A Wavy-Structured Highly Stretchable Thermoelectric Generator with Stable Energy Output and Self-Rescuing Capability

SWCNT network evolution of PEDOT:PSS/SWCNT composites for thermoelectric application