All-in-one 3D acceleration sensor based on coded liquid–metal triboelectric nanogenerator for vehicle restraint system

Zhang, Binbin; Wu, Zhiyi; Lin, Zhangxi; Guo, Hengyu; Chun, Fengjun; Yang, Weiqing; Wang, Zhong Lin

doi:10.1016/j.mattod.2020.10.031

Cited by 132 publications

(65 citation statements)

References 22 publications

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“…Acceleration information can be obtained from the tire movement of the vehicle. Zhang et al proposed a self-powered acceleration sensor based on liquidmetal triboelectric nanogenerator (LM-TENG), which can directly detect horizontal and vertical accelerations [6]. When a vehicle crashes, the force and position data of the vehicle can be obtained through the acceleration sensor.…”

Section: Traffic Sensorsmentioning

confidence: 99%

“…Nanogenerators (NGs) can effectively harvest energy various low-frequency mechanical motions from the environment. NG-based self-powered sensors act as data collection units for traffic [3][4][5][6][7][8][9][10][11], meteorological environment [12][13][14][15][16][17][18][19][20][21], human movement [22][23][24][25][26][27], viscera [28][29][30], body fluid composition [31][32][33][34][35][36][37][38][39], biological nerve impulses [40], and gas sensors [18][19][20]. Self-powered sensors based on NGs can analyze objects from a new perspective.…”

Section: Introductionmentioning

confidence: 99%

“…NG-based self-powered sensors can be applied in traffic monitoring [3,[59][60][61], and road and bridge monitoring [4,59]. Data regarding the driving status of vehicles, the operating status of vehicle components, and the driver usage habits are related to the safety of vehicle driving and the experience of the driver [5][6][7][8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

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Nanogenerator-based self-powered sensors for data collection

Shao¹,

Shen²,

Zhou³

et al. 2021

Beilstein J. Nanotechnol.

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Self-powered sensors can provide energy and environmental data for applications regarding the Internet of Things, big data, and artificial intelligence. Nanogenerators provide excellent material compatibility, which also leads to a rich variety of nanogenerator-based self-powered sensors. This article reviews the development of nanogenerator-based self-powered sensors for the collection of human physiological data and external environmental data. Nanogenerator-based self-powered sensors can be designed to detect physiological data as wearable and implantable devices. Nanogenerator-based self-powered sensors are a solution for collecting data and expanding data dimensions in a future intelligent society. The future key challenges and potential solutions regarding nanogenerator-based self-powered sensors are discussed.

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Section: Traffic Sensorsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Nanogenerator-based self-powered sensors for data collection

Shao¹,

Shen²,

Zhou³

et al. 2021

Beilstein J. Nanotechnol.

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“…In the process of acceleration, the acceleration value is obtained by measuring the inertia force applied on the mass directly or indirectly, according to Newton's second law. Zhang et al selected a mercury drop, a kind of liquid metal mercury, as the moving part owing to its high elasticity [19]. Nevertheless, it is harmful to the environment and has a smaller contact angle compared with a solid ball, which may attenuate the sensitivity of an acceleration sensor.…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, designing a rational electrode pattern is significant to facilitate the miniaturization of an acceleration sensor. The acceleration sensor developed by Zhang et al is based on a coded strategy of electrodes [19]. Yet five circles of electrodes are required to realize the identification of accelerations, leading to the large diameter of the sensor.…”

Section: Introductionmentioning

confidence: 99%

Self-Powered Miniaturized Acceleration Sensor Based on Rationally Patterned Electrodes

Wang

Wei

Chen³

et al. 2021

IEEE Open J. Nanotechnol.

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Acceleration sensors have a wide variety of applications for industrial engineering, biology and navigation. However, passive sensing, narrow detection range, large size, and high manufacturing cost curb their further development. Here, we present a miniaturized acceleration sensor (MAS) with rationally patterned electrodes, based on the single electrode triboelectric mechanism, featuring small size, high accuracy, large detection scale, and environmental friendliness. A stainless-steel ball, as the moving part of the MAS, experiences physical movement that is converted into an electrical signal. Equipped with rationally patterned electrodes, the MAS retains the smallest size and lowest weight compared with the currently reported self-powered acceleration sensors. Benefiting from the voltage-relationship-based direction detection mechanism, eight directions can be identified by one TENG module. Consequently, rotated 22.5° relatively, two TENG modules enable the MAS to detect 16 directions. Moreover, accelerations ranging from 0.1 m/s 2 to 50 m/s 2 can be identified according to the relationship of response time and accelerations in the horizontal direction. The relationship is obtained through the measurements of the sum of output voltages (VSOC) for the four bottom electrodes with varying accelerations. In addition, no distinct decrease of VSOC is observed after continuously operating for 2000 circles, presenting excellent robustness. Hence, this cost-effective and rationally patterned MAS reveals great potential for human machine interaction, VR/AR (virtual/augmented reality), sports training, and smart city.

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Elastic‐Connection and Soft‐Contact Triboelectric Nanogenerator with Superior Durability and Efficiency

Lin

Zhang

Xie

et al. 2021

Adv Funct Materials

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Triboelectric nanogenerator (TENG) has received tremendous attention in ambient energy harvesting, especially for ocean wave energy. However, the technology is generally challenged to obtain excellent durability and high efficiency simultaneously, which primarily overshadows their further industrial‐scale applications. Here, a dual‐mode and frequency multiplied TENG with ultrahigh durability and efficiency for ultralow frequency mechanical energy harvesting via the elastic connection and soft contact design is proposed. By introducing the spring and flexible dielectric fluff to the novel pendulum‐like structural design, the surface triboelectric charges of TENG are replenished in soft contact mode under the intermittent mechanical excitation, while the robustness and durability are enhanced in non‐contact working mode. The fabricated TENG results in a continuous electrical output for 65 s by one stimulus with a high energy conversion efficiency, as well as negligible change of output performance after a total of 2 000 000 cycles. Moreover, integrated with the power management circuit, the TENG array is demonstrated to drive the electronics by effectively harvesting wind and water wave energy as a sustainable energy source. This work paves a new pathway to enhance the robustness, durability, and efficiency of the TENG that resolves the bottleneck of its practical applications and industrialization.

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All-in-one 3D acceleration sensor based on coded liquid–metal triboelectric nanogenerator for vehicle restraint system

Cited by 132 publications

References 22 publications

Nanogenerator-based self-powered sensors for data collection

Nanogenerator-based self-powered sensors for data collection

Self-Powered Miniaturized Acceleration Sensor Based on Rationally Patterned Electrodes

Elastic‐Connection and Soft‐Contact Triboelectric Nanogenerator with Superior Durability and Efficiency

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