A triboelectric–electromagnetic hybrid generator for scavenging low-frequency oscillation energy from the environment and human body

Wang, Hao; Xu, Chaojie; Pan, Xiaoming; Cheng, Tai-Hong

doi:10.1007/s10853-022-07963-6

Cited by 9 publications

(2 citation statements)

References 37 publications

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“…In 2012, Wang's group invented the triboelectric nanogenerator (TENG) based on a combination of frictional charging and electrostatic induction. The TENG is the more advanced low-frequency mechanical energy harvesting technique that has been shown to harvest biomechanical energy over a wide distribution [12][13][14][15][16][17]. Vibration [18][19][20], friction [21], rotation [22][23][24] and contraction movements are examples of mechanical energy that can be converted into electrical energy by TENG.…”

Section: Introductionmentioning

confidence: 99%

A Hybrid Triboelectric-Electromagnetic Nanogenerator Based on Arm Swing Energy Harvesting

Zheng

Cao

Han

et al. 2023

Nanoenergy Advances

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As wearable devices continue to be updated and iterated, there is an increasing demand for energy supplies that are small, portable and capable of working continuously for extended periods of time. Here, a hybrid triboelectric-electromagnetic nanogenerator (HNG) based on a biomechanical energy harvester is demonstrated. The HNG is designed to be worn on the wrist according to the curve of the wearer’s arm swing. During the swinging of the arm, the magnet covered by the PTFE film will move relative to the curved cavity of the HNG and take on a negative charge by rubbing against the inner wall of the Cu coated cavity, resulting in a change in the potential difference between the two copper electrodes on the inner wall of the curved cavity. The movement of the magnet causes the magnetic flux of the three pairs of coils on both sides of the arc track to change to produce the induced electric potential, which converts the mechanical energy generated by the arm swing into electrical energy. After the rational design, the HNG is integrated into a small size device to achieve the collection of biomechanical energy. Several experiments were conducted to verify the HNG’s usability. Experiments show that the HNG takes 90 s to charge from 0 V to 1.2 V for a 1000 μF capacitor. In addition, the HNG can light up 23 LEDs simultaneously and provide a continuous supply of energy to portable electronic devices, such as temperature sensors and electronic watches after the capacitor has stored the energy. Furthermore, the HNG is experimentally verified by volunteers wearing the HNG to achieve continuous and stable output in all three states of slow swing, fast swing and running swing. This work not only provides a useful reference for human biomechanical energy harvesting, but can also provide a continuous, clean source of energy for wearable devices.

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Section: Introductionmentioning

confidence: 99%

A Hybrid Triboelectric-Electromagnetic Nanogenerator Based on Arm Swing Energy Harvesting

Zheng

Cao

Han

et al. 2023

Nanoenergy Advances

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“…[30][31][32][33] According to previous studies on hybrid energy harvesting devices, the energy generated by the environment and human motion can be efficiently harvested by integrating EMGs and TENGs. [34][35][36][37] However, most hybrid energy harvesting devices can only power electronics and cannot effectively utilize the characteristics of TENGs that can be used as a sensor, resulting in a single application scenario and lack of diversity. Therefore, it is important to develop a new energy harvesting device that can simultaneously power electronics and smart sensing to promote the diversication of energy harvesting application scenarios.…”

Section: Introductionmentioning

confidence: 99%

A press-rotary triboelectric-electromagnetic hybrid energy harvesting device for indoor IoT node power supply and smart home control

Yu,

Chen,

et al. 2023

Sustainable Energy Fuels

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Flexible Triboelectric Nanogenerators Based on Cadmium Metal–Organic Framework/Eethyl Cellulose Composites as Energy Harvesters for Selective Photoinduced Bromination Reaction

Zhang,

Huang,

Tao

et al. 2024

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The fabrication of self‐driven systems with flexibility and tunable output for organic photoinduction is highly desirable but challenging. In this study, a 3D cadmium metal–organic framework (Cd‐MOF) is synthesized and used as a filler for ethyl cellulose (EC) to create mechanically durable and flexible Cd‐MOF@EC composite films. Due to its well‐established platform with periodically precise structure nature, the outputs of Cd‐MOF‐based TENG are much higher than those of ligand‐based TENGs. Furthermore, composite films with different doping ratios of Cd‐MOF are employed to assemble Cd‐MOF@EC‐based triboelectric nanogenerators (TENGs). The results reveal that a doping ratio of 10 wt.% Cd‐MOF in Cd‐MOF@EC provides the highest TENG output. Subsequently, a flexible 10 wt.% Cd‐MOF@EC‐based TENG (FCEC‐TENG), working in the contact‐separation model, is constructed to harvest mechanical energy from the human body, demonstrating excellent output performance and stability. The energy harvested from FCEC‐TENG can directly illuminate 14 commercial white light‐emitting diodes (LEDs), providing visible light for the photoinduction of the bromination reaction, and generating bromide with good yield and tolerance. This study presents an effective method for constructing flexible MOF‐based TENG for self‐powered photoinduced organic transformation systems.

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A triboelectric–electromagnetic hybrid generator for scavenging low-frequency oscillation energy from the environment and human body

Cited by 9 publications

References 37 publications

A Hybrid Triboelectric-Electromagnetic Nanogenerator Based on Arm Swing Energy Harvesting

A Hybrid Triboelectric-Electromagnetic Nanogenerator Based on Arm Swing Energy Harvesting

A press-rotary triboelectric-electromagnetic hybrid energy harvesting device for indoor IoT node power supply and smart home control

Flexible Triboelectric Nanogenerators Based on Cadmium Metal–Organic Framework/Eethyl Cellulose Composites as Energy Harvesters for Selective Photoinduced Bromination Reaction

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