Ionogel-based, highly stretchable, transparent, durable triboelectric nanogenerators for energy harvesting and motion sensing over a wide temperature range
By Lijie Sun, Shuo Chen, Yifan Guo, Jianchun Song, Luzhi Zhang, Lijuan Xiao, Qingbao Guan, Zhengwei You. Nano Energy, 2019
232 citations recorded by the source corpus.
Abstract Hydrogel-based triboelectric nanogenerators (H-TENGs) have shown great promise in wearable electronics as soft, stretchable and sustainable power sources. However, H-TENGs can only be used in a narrow temperature range for a short duration due to freezing and evaporation of water. Here, an ionogel-based triboelectric nanogenerator (I-TENG) is designed to significantly broaden the application temperature range and duration while retaining all the superior properties of H-TENGs. The ionogel network constructed by dipole-dipole and ion-dipole interactions exhibits high stretchability (~800%) and ionic conductivity (1.1 mS cm−1). The corresponding I-TENG retains high stretchability (>400%), transparency (>90%), and anti-fatigue resistance (resisting 1000 cycles of 100% stretching) with stable electrical performance for 1 month. The I-TENG shows an instantaneous peak power density of 1.3 W m−2 and efficiently harvests biomechanical energy to drive an electronic watch. Additionally, the I-TENG serves as a self-powered human motion sensor to inspect the bending angle of an elbow. More importantly, the I-TENG retains high stretchability and electrical performance over a wide temperature range from −20 to 100 °C. This work provides a new strategy to design and tailor TENGs that will be very useful for diverse applications, including wearable electronics, electronic skin, and artificial intelligence.
Subfields: Biomedical Engineering, Electronic, Optical and Magnetic Materials, Polymers and Plastics
View Paper: https://www.semanticscholar.org/paper/b540875e993e324ac7719e172936aeff888c34d2
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Citations in the corpus
- Progress in TENG technology—A journey from energy harvesting to nanoenergy and nanosystem (2020, unknown): “To increase the efficiency of energy harvesting from TENG, plenty of approaches (the materials composite, the external “charge pump”, and the electrical circuit system) have been investigated.(368-373) Furthermore, the novel mechanism for DC output generation has been investigated to directly power ”
- Promoting smart cities into the 5G era with multi-field Internet of Things (IoT) applications powered with advanced mechanical energy harvesters (2021, background): “…environment [109], adding temperature-stable ceramic powder into TENG to steadily work within the temperature range of (cid:0) 10 to 50 ◦ C [110], fabricating ion gel-based TENG retaining high stretchability and electrical performance over a wide temperature range from (cid:0) 20 to 100 ◦ C [111].”
- Design, manufacturing and applications of wearable triboelectric nanogenerators (2021, unknown): “…outdoor weather conditions, the matrix/solvent of the TENGs should not undergo phase change to ensure stable mechanical and electrical performance [70,83]; The matching processes of these practical materials should be developed, and the process complexity, efficiency and cost should be optimized.”