Despite the rapid development of various wearable generators to harvest energy from human activity, they are limited to single or intermittent power generation. Here, stretchable and washable energy harvesting fabric is reported, which enables biomechanical and biochemical generation through co-weaving triboelectric generator (TEG) and perspiration electric generator (PEG)-based fibers. The two energy harvesting approaches can work individually or simultaneously, thereby combating humidity and increasing the electrical output. The maximum output power density of TEG- and PEG-based fibers can achieve 166 and 5.4 µW cm−2, respectively. The woven-structured patch-type energy harvester is conformable with clothing. It can harvest energy from human movements and sweat to drive the wearable Internet of Things (IoT) without charging systems. This synergistic and complementary energy harvester can provide a viable standalone power source relying solely on human activity for wearable electronics.
Bibliographical noteFunding Information:
J.P. and S.‐M.C. contributed equally to this work. This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (NRF‐2021R1C1C1009100, NRF‐2020M3H4A3105594, and NRF‐2022R1A6A3A0108616911). This work was supported by the Korea Institute of Science and Technology (2V09793 and 2E32491), and the Technology Innovation Program (00144157, Development of Heterogeneous Multi‐Sensor Micro‐System Platform) funded By the Ministry of Trade, Industry & Energy(MOTIE, Korea). Informed consent was obtained from all participants for the experiments conducted.
© 2023 The Authors. Advanced Energy Materials published by Wiley-VCH GmbH.
- perspiration electric generator-based fibers
- triboelectric generator-based fibers
- wearable energy harvesting
- woven-structured energy harvesters
ASJC Scopus subject areas
- Renewable Energy, Sustainability and the Environment
- General Materials Science