Robust Swing‐Structured Triboelectric Nanogenerator for Efficient Blue Energy Harvesting

By Tao Jiang, Hao Pang, Jie An, Pinjing Lu, Yawei Feng, Xi Liang, Wei Zhong, Zhong Lin Wang. Advanced Energy Materials, 2020

296 citations recorded by the source corpus.

Ocean wave energy is a promising renewable energy source, but harvesting such irregular, “random,” and mostly ultra‐low frequency energies is rather challenging due to technological limitations. Triboelectric nanogenerators (TENGs) provide a potential efficient technology for scavenging ocean wave energy. Here, a robust swing‐structured triboelectric nanogenerator (SS‐TENG) with high energy conversion efficiency for ultra‐low frequency water wave energy harvesting is reported. The swing structure inside the cylindrical TENG greatly elongates its operation time, accompanied with multiplied output frequency. The design of the air gap and flexible dielectric brushes enable mininized frictional resistance and sustainable triboelectric charges, leading to enhanced robustness and durability. The TENG performance is controlled by external triggering conditions, with a long swing time of 88 s and a high energy conversion efficiency, as well as undiminished performance after continuous triggering for 4 00 000 cycles. Furthermore, the SS‐TENG is demonstrated to effectively harvest water wave energy. Portable electronic devices are successfully powered for self‐powered sensing and environment monitoring. Due to the excellent performance of the distinctive mechanism and structure, the SS‐TENG in this work provides a good candidate for harvesting blue energy on a large scale.

Subfields: Biomedical Engineering, Mechanical Engineering, Polymers and Plastics

View Paper: https://www.semanticscholar.org/paper/d4619af7fddba836bfe999829ee4659a19c635c6

How researchers see this paper

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In Biomedical Engineering

1. Zhong Lin Wang
2. Long Liu
3. Xinge Guo
4. Chengkuo Lee
5. Jianjun Luo
6. Zhou Li
7. Minyi Xu
8. Xiu Xiao

In Mechanical Engineering

1. Long Liu
2. Xinge Guo
3. Chengkuo Lee
4. Zhong Lin Wang
5. Jianjun Luo
6. Tao Jiang
7. Zhou Li
8. Minyi Xu

In Polymers and Plastics

1. Zhong Lin Wang
2. Chengkuo Lee
3. Long Liu
4. Xinge Guo
5. Jianjun Luo
6. Zhou Li
7. Minyi Xu
8. Xiu Xiao

Citations in the corpus

• Recent progress in blue energy harvesting for powering distributed sensors in ocean (2021, methodology): “(j) Structural scheme of the soft-contact model spherical TENG (SS-TENG) with a flexible rolling sphere.”
• Soft-contact cylindrical triboelectric-electromagnetic hybrid nanogenerator based on swing structure for ultra-low frequency water wave energy harvesting (2021, methodology): “The general device design was derived from our previous works [45,46].”
• Promoting smart cities into the 5G era with multi-field Internet of Things (IoT) applications powered with advanced mechanical energy harvesters (2021, methodology): “In addition, the durability of TENG has been improved by applying optimized mechanical structures [112 – 114], arched or bladed structured TENG [115,116], fur-based TENG [117], and interface liquid lubrication [118].”
• Recent progress of triboelectric nanogenerators: From fundamental theory to practical applications (2020, methodology): “In order to effectively collect the water wave energy, TENGs with various structure design have been proposed, including spring-based structure,(126) wavyelectrode structure,(127,128) duck-shaped structure,(129) rolling spherical structure,(130,131) and air-driven membrane structure,(132) swing stru”