Multidiscipline Applications of Triboelectric Nanogenerators for the Intelligent Era of Internet of Things

Cao, Xiaole; Xiong, Yao; Sun, Jia; Xie, Xiaoyin; Sun, Qijun; Wang, Zhong Lin

doi:10.1007/s40820-022-00981-8

Cited by 113 publications

(42 citation statements)

References 200 publications

(329 reference statements)

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“…With the development of the world, the understanding of triboelectrification is deepening, and the mechanism of electrostatic induction has been gradually proposed [ 36 ]. Triboelectrification (TE) and contact electrification (CE) are natural physical phenomena and we generally consider TE as CE [ 34 ].…”

Section: The Principles Of Tengmentioning

confidence: 99%

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Recent Progress in Self-Powered Wireless Sensors and Systems Based on TENG

Wei

et al. 2023

Sensors

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With the development of 5G, artificial intelligence, and the Internet of Things, diversified sensors (such as the signal acquisition module) have become more and more important in people’s daily life. According to the extensive use of various distributed wireless sensors, powering them has become a big problem. Among all the powering methods, the self-powered sensor system based on triboelectric nanogenerators (TENGs) has shown its superiority. This review focuses on four major application areas of wireless sensors based on TENG, including environmental monitoring, human monitoring, industrial production, and daily life. The perspectives and outlook of the future development of self-powered wireless sensors are discussed.

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Section: The Principles Of Tengmentioning

confidence: 99%

“…Their polarities depend entirely on the direction of electron flow during contact (which depends on the polarity of the CPD of the two contacting materials) [ 41 ]. This process of accumulating charge on the surface of an insulator is known as contact electrification [ 36 ].…”

Section: The Principles Of Tengmentioning

confidence: 99%

Recent Progress in Self-Powered Wireless Sensors and Systems Based on TENG

Wei

et al. 2023

Sensors

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“…When the contact state changes alternately, electrons flow into and out of the external circuit repeatedly, resulting in a continuous alternating current (AC) output. [ 38 ] And for the freestanding mode, a dielectric plate and two metal plates are stacked face to face, forming two triboelectric pairs. The two metal plates also serve as two electrodes.…”

Section: Working Mechanism Of Tengmentioning

confidence: 99%

“…The C–S mode is applicable to the vertical C–S (VCS) movement in a cycle [ 37 ] and beneficial for energy harvesting. [ 38 ] As for the freestanding mode, because of the free layer, more mechanical motion types can be accepted.…”

Section: Introductionmentioning

confidence: 99%

Recent Advances in Mechanical Vibration Energy Harvesters Based on Triboelectric Nanogenerators

Dong

et al. 2023

Small

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With the development of autonomous/smart technologies and the Internet of Things (IoT), tremendous wireless sensor nodes (WSNs) are of great importance to realize intelligent mechanical engineering, which is significant in the industrial and social fields. However, current power supply methods, cable and battery for instance, face challenges such as layout difficulties, high cost, short life, and environmental pollution. Meanwhile, vibration is ubiquitous in machinery, vehicles, structures, etc., but has been regarded as an unwanted by‐product and wasted in most cases. Therefore, it is crucial to harvest mechanical vibration energy to achieve in situ power supply for these WSNs. As a recent energy conversion technology, triboelectric nanogenerator (TENG) is particularly good at harvesting such broadband, weak, and irregular mechanical energy, which provides a feasible scheme for the power supply of WSNs. In this review, recent achievements of mechanical vibration energy harvesting (VEH) related to mechanical engineering based on TENG are systematically reviewed from the perspective of contact–separation (C‐S) and freestanding modes. Finally, existing challenges and forthcoming development orientation of the VEH based on TENG are discussed in depth, which will be conducive to the future development of intelligent mechanical engineering in the era of IoT.

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“…[ 10 ] Among the diversified applications, self‐powered sensors and systems have attracted intensive attention and extended to interdisciplinarity research fields due to their small volume, high sensitivity, good stability, and most importantly, no external power supply (i.e., the as‐named “self‐powered”). [ 11–14 ] Relying on the working mechanism of TENG, the developed triboelectric sensors have exhibited great significance in the sensing area including but not limited to multifunctional sensors, [ 15–17 ] human‐machine interaction, [ 18,19 ] energy‐autonomous modules, [ 20 ] mechanologics, [ 21 ] and interactive neuromorphic devices. [ 22–26 ] Notably, based on the advantages of no power consumption, structural versatility, and facile designability, triboelectric sensors are ready to be fabricated on demand and distributed to the designated positions, which may exhibit more preferential priorities and application prospects for intelligent industry.…”

Section: Introductionmentioning

confidence: 99%

Self‐Powered Embedded‐Sensory Adjustment for Flow Batteries

Wang

Cao

et al. 2023

Advanced Energy Materials

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Flow batteries (FBs) are one of the most promising strategies for large‐scale energy storage, in which the flow rates of electrolytes are critical to the redox reaction efficiency. However, low‐power and energy‐efficient strategies to effectively monitor and adjust the flow rates of FBs are great challenges. Here, a liquid metal based thin‐film and self‐powered triboelectric sensor (LM‐TS) to monitor and adjust the real‐time electrolyte flow rates in FBs is developed. By integrating the LM‐TS with a peristaltic pump (flow rate control unit in FB), the flow rates of electrolytes can be converted into readable electrical output signals. Furthermore, a logical and a control module are adopted to adjust the flow rates of electrolytes automatically after receiving those electrical signals, which are available to guarantee the optimal working condition of FBs. Benefiting from the high conductivity and outstanding ductility of ultrathin LM film, the self‐powered LM‐TS is endowed with high sensitivity, short response time (9.1 ms), and remarkable cyclic stability (> 20000 cycles) without affecting the normal operation of FBs. This is the first prototype of self‐powered adjustment sensor for FBs, which is readily extended to scaled‐up FB equipment for intermediate trial and large‐scale energy‐storage demonstration.

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Multidiscipline Applications of Triboelectric Nanogenerators for the Intelligent Era of Internet of Things

Cited by 113 publications

References 200 publications

Recent Progress in Self-Powered Wireless Sensors and Systems Based on TENG

Recent Progress in Self-Powered Wireless Sensors and Systems Based on TENG

Recent Advances in Mechanical Vibration Energy Harvesters Based on Triboelectric Nanogenerators

Self‐Powered Embedded‐Sensory Adjustment for Flow Batteries

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