Evaporative hydrogels for high-performance ambient body heat harvesting via thermoelectric
Chinese University of Hong Kong · Nanyang Technological University · +10 more institutions
Abstract
The increasing demand in power of modern environmental and health sensors have spurred the development of ambient energy harvesting to reduce reliance in battery. Thermoelectric generators (TEGs) are a promising technology, which convert waste or body heat into electricity. However, their power output is severely limited by the thermal impedance mismatch, particularly between the human skin and TEG interface. This work introduces a novel approach to overcome this limitation by integrating a hydrogel into the TEG system. It has been revealed that the enthalpy from the hydrogel's water evaporation effectively achieves thermal impedance matching while simultaneously maximizing the heat flux. Furthermore, by…
Citation impact
- FWCI
- 38.83
- Percentile
- 100%
- References
- 42
Authors
13- ZGZichen Gong
Chinese University of Hong Kong
- JDJinfeng Dong
Nanyang Technological University
- SKSoe Ko Ko Aung
Mandalay University
- TPTT Phan
Vietnam National University Ho Chi Minh City, Ho Chi Minh City University of Science, University of Medicine and Pharmacy at Ho Chi Minh City
- QQQi Qian
Chinese University of Hong Kong
Topics & keywords
- Power density
- Impedance matching
- Thermoelectric effect
- Thermoelectric generator
- Energy harvesting
- Thermoelectric cooling
- Work (physics)
- Evaporation
- Affordable and clean energy