The Experts below are selected from a list of 10380 Experts worldwide ranked by ideXlab platform
Zhong Lin Wang - One of the best experts on this subject based on the ideXlab platform.
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soft contact cylindrical triboelectric Electromagnetic hybrid nanoGenerator based on swing structure for ultra low frequency water wave energy harvesting
Nano Energy, 2021Co-Authors: Yawei Feng, Zhong Lin Wang, Xi Liang, Tao JiangAbstract:Abstract Ocean waves are promising green sources for energy exploitation, but harvesting such energy is quite challenging due to the apparent drawbacks of ultra-low vibration frequency and low efficiency. Here, a hybrid nanoGenerator containing soft-contact cylindrical triboelectric nanoGenerator and Electromagnetic Generator with swing structure was designed for ultra-low frequency wave energy converting. Brushes made of flexible rabbit hairs were introduced to separate stator-rotor pairs, with the function of charge pumping onto dielectric surface, which can reduce the operation resistance and improve the device durability. Based on the swing motion of rotor, over 60 current pulses can be generated within 15 s from either module by one external triggering, implying the output frequency multiplication and operation time extension. The optimized hybrid nanoGenerator exhibits the best output response at 0.1 Hz of water wave agitation, delivering a peak power density of 10.16 W·m−3 and an average power density of 0.23 W·m−3. Furthermore, self-powered temperature mapping and wireless transmitting were successfully realized by a hybrid nanoGenerator array to demonstrate its capability in collecting ultra-low frequency water wave energy. The distinctive structure and operation mechanism prompt the proposed hybrid nanoGenerator to be a good candidate for large-scale blue energy harvesting.
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Comparison of applied torque and energy conversion efficiency between rotational triboelectric nanoGenerator and Electromagnetic Generator
iScience, 2021Co-Authors: Guoxu Liu, Tong Tong, Zhong Lin Wang, Chi ZhangAbstract:Summary Triboelectric nanoGenerator (TENG) is regarded as an equally important mechanical energy harvesting technology as Electromagnetic Generator (EMG). Here, the input mechanical torques and energy conversion efficiencies of the rotating EMG and TENG are systematically measured, respectively. At constant rotation rates, the input mechanical torque of EMG is balanced by the friction resisting torque and Electromagnetic resisting torque, which increases with the increasing rotation rate due to Ampere force. While the input mechanical torque of TENG is balanced by the friction resisting torque and electrostatic resisting torque, which is nearly constant at different rotation rates. The energy conversion efficiency of EMG increases with the increasing input mechanical power, while that of the TENG remains nearly constant. Compared with the EMG, the TENG has a higher conversion efficiency at a low input mechanical power, which demonstrates a remarkable merit of the TENG for efficiently harvesting weak ambient mechanical energy.
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harvesting wind energy a hybridized design of pinwheel by coupling triboelectrification and Electromagnetic induction effects
Nano Energy, 2019Co-Authors: Yilin Guo, Xia Cao, Yandong Chen, Huarui Zhu, Ning Wang, Zhong Lin WangAbstract:Abstract Wind power is one of the most attractive frontrunners of the technological breakthroughs that might lead to more efficient energy production. However, the implementation of wind energy is seriously delayed due to the lack of technological advancements that can solve the costs and regional deployment issues. Here, a hybridized design of pinwheel with coupled triboelectric nanoGenerator (TENG) and Electromagnetic Generator (EMG) that can harvest wind energy even in a light breeze is reported. For example, at 1.7 m/s wind speed, the Isc and Voc of the TENG part can reach 1.8 μA and 24 V, while the electric signals of the EMG are 3.8 mA and 0.95 V. Specially, the pinwheel with sole TENG can produce an output of 1.3 μA and 20 V at 1.3 m/s. At 6 m/s wind speed, the TENG part provides a maximum output power density of 0.12 mW/g and the EMG part gives a peak output power density of 0.26 mW/g. Furthermore, the pinwheel can not only charge capacitors but also power mobile phones, hygrometers and some other low-power portable electronic devices, which makes perfect sense in situations even with a very low annual average wind speed.
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an ultra low friction triboelectric Electromagnetic hybrid nanoGenerator for rotation energy harvesting and self powered wind speed sensor
ACS Nano, 2018Co-Authors: Peihong Wang, Lun Pan, Jiyu Wang, Guozhang Dai, Haiyang Zou, Kai Dong, Zhong Lin WangAbstract:Triboelectric nanoGenerators (TENGs) are attracting more and more attention since they can convert various mechanical energies into electric energy. However, in traditional TENGs for harvesting rotation energy, most of the contacts between two triboelectric materials are rigid-to-rigid contact with very large friction force, which limits their practical application. Here, we report an ultra-low-friction triboelectric–Electromagnetic hybrid nanoGenerator (NG). A freestanding mode TENG and a rotating Electromagnetic Generator (EMG) are integrated together to realize the complementary individual merits. The very soft and elastic contact between the two triboelectric materials in the TENG results into very small friction force. The influences of the type and the dimensions of the dielectric material on the performance of the TENG are studied systematically from theory to experiments. The results indicate that the open-circuit voltage and the transfer charge of the TENG increase with the rotation speed, which ...
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self powered versatile shoes based on hybrid nanoGenerators
Nano Research, 2018Co-Authors: Long Liu, Wei Tang, Chaoran Deng, Baodong Chen, Kai Han, Wei Zhong, Zhong Lin WangAbstract:A triboelectric nanoGenerator (TENG) and an Electromagnetic Generator (EMG) were hybridized to harvest the human mechanical energy. By an effective conjunction of triboelectrification and Electromagnetic induction, the hybridized nanoGenerator with a radius of 2 cm and height of 1.2 cm could charge a 1,000 μF capacitor to 5.09 V after 100 cycles of vibration. This mini-sized hybrid nanoGenerator could then be embedded in shoes to serve as an energy cell. Typical outdoor applications—including driving with a Global Positioning System (GPS) device, charging a Li-ion battery and a cell phone—were successfully demonstrated, suggesting its potential application in smart wearable electronics and future suits of soldiers.
Hengyu Guo - One of the best experts on this subject based on the ideXlab platform.
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rolling friction contact separation mode hybrid triboelectric nanoGenerator for mechanical energy harvesting and self powered multifunctional sensors
Nano Energy, 2018Co-Authors: Hongmei Yang, Hengyu Guo, Guanlin Liu, Wenlin Liu, Meihui Lai, Mingfeng WangAbstract:Abstract Collecting mechanical energy in the surrounding environment to power small electronic devices is an ideal method as a green and clean power source. Based on the working mechanism and the advantages of triboelectric nanoGenerator (TENG), a robust rolling friction contact-separation mode TENG (CS-TENG) has been fabricated for harvesting vertical rotation energy by utilizing the integrated cylindrical surface with the conjunction of rolling contact electrification and electrostatic induction. The output current of the CS-TENG can maintain 96% (origin: 1.72 μA, final: 1.66 μA) after two days continuous work a rotation speed of 300 r/min. Furthermore, an Electromagnetic and triboelectric hybrid contact-separation mode nanoGenerator (HCS-TENG) has been further designed by coupling magnets in the rolling cylinders with copper coils as an Electromagnetic Generator (EMG) in the acrylic cylinder to implement the multi-functional properties. The gear transmission structure makes the device more facile to be installed on the rotation objects. The output performances of CS-TENG and EMG under various rotation speeds were systematically studied. It shows that the CS-TENG with six units can deliver an output power of 0.15 mW/cm2 and the 100 μF capacitor can be charged to 6 V in less than 1 min by the hybridized nanoGenerator at a rotating rate of 700 r/min. In addition, utilizing the output signal's intrinsic characteristics of CS-TENG, a self-powered rotation speed and displacement sensor using the dual cylinder structure TENG has been achieved for these rotating mobile devices that are inconvenient to get an additional power supply in the grimmest circumstances such as moon car or other celestial and tough environment detection equipment. This multifunctional TENG device reveals a significantly potential application in the grimmest circumstances as power source, self-powered electronics and sensor systems.
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a fully packaged and robust hybridized Generator for harvesting vertical rotation energy in broad frequency band and building up self powered wireless systems
Nano Energy, 2017Co-Authors: Jie Chen, Yi Xi, Hengyu Guo, Guanlin Liu, Muhammad Sufyan Javed, Xue Wang, Chenguo HuAbstract:Abstract Harvesting energies from surroundings to build up self-powered sensing systems is very useful in our daily life. In this work, we design a cylinder-like fully-packaged hybrid nanoGenerator for harvesting vertical rotation energy in broad frequency band by utilizing a magnet rod as the trigger to drive contact-separation mode triboelectric nanoGenerator (TENG), and by coupling magnet rod with copper coils to operate Electromagnetic Generator (EMG). The stator-free structure makes the device more facile to be installed on the rotation objects. The output performances of TENG and EMG under various rotation speeds are systematically studied and clearly demonstrated by installing the device on a balance car, which proves that TENG can be more effective for low-frequency (
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fully packaged blue energy harvester by hybridizing a rolling triboelectric nanoGenerator and an Electromagnetic Generator
ACS Nano, 2016Co-Authors: Xin Wang, Zhen Wen, Long Lin, Hengyu Guo, Xia Cao, Zhong Lin WangAbstract:Ocean energy, in theory, is an enormous clean and renewable energy resource that can generate electric power much more than that required to power the entire globe without adding any pollution to the atmosphere. However, owing to a lack of effective technology, such blue energy is almost unexplored to meet the energy requirement of human society. In this work, a fully packaged hybrid nanoGenerator consisting of a rolling triboelectric nanoGenerator (R-TENG) and an Electromagnetic Generator (EMG) is developed to harvest water motion energy. The outstanding output performance of the R-TENG (45 cm3 in volume and 28.3 g in weight) in the low-frequency range (<1.8 Hz) complements the ineffective output of EMG (337 cm3 in volume and 311.8 g in weight) in the same range and thus enables the hybrid nanoGenerator to deliver valuable outputs in a broad range of operation frequencies. Therefore, the hybrid nanoGenerator can maximize the energy conversion efficiency and broaden the operating frequency simultaneously....
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harvesting broad frequency band blue energy by a triboelectric Electromagnetic hybrid nanoGenerator
ACS Nano, 2016Co-Authors: Zhen Wen, Xin Wang, Hengyu Guo, Min-hsin Yeh, Jianan Deng, Jie Wang, Liping ZhuAbstract:Ocean wave associated energy is huge, but it has little use toward world energy. Although such blue energy is capable of meeting all of our energy needs, there is no effective way to harvest it due to its low frequency and irregular amplitude, which may restrict the application of traditional power Generators. In this work, we report a hybrid nanoGenerator that consists of a spiral-interdigitated-electrode triboelectric nanoGenerator (S-TENG) and a wrap-around Electromagnetic Generator (W-EMG) for harvesting ocean energy. In this design, the S-TENG can be fully isolated from the external environment through packaging and indirectly driven by the noncontact attractive forces between pairs of magnets, and W-EMG can be easily hybridized. Notably, the hybrid nanoGenerator could generate electricity under either rotation mode or fluctuation mode to collect energy in ocean tide, current, and wave energy due to the unique structural design. In addition, the characteristics and advantages of outputs indicate that the S-TENG is irreplaceable for harvesting low rotation speeds ( 10 Hz). The complementary output can be maximized and hybridized for harvesting energy in a broad frequency range. Finally, a single hybrid nanoGenerator unit was demonstrated to harvest blue energy as a practical power source to drive several LEDs under different simulated water wave conditions. We also proposed a blue energy harvesting system floating on the ocean surface that could simultaneously harvest wind, solar, and wave energy. The proposed hybrid nanoGenerator renders an effective and sustainable progress in practical applications of the hybrid nanoGenerator toward harvesting water wave energy offered by nature.
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Harvesting Broad Frequency Band Blue Energy by a Triboelectric–Electromagnetic Hybrid NanoGenerator
2016Co-Authors: Zhen Wen, Xin Wang, Hengyu Guo, Min-hsin Yeh, Jianan Deng, Jie Wang, Liping ZhuAbstract:Ocean wave associated energy is huge, but it has little use toward world energy. Although such blue energy is capable of meeting all of our energy needs, there is no effective way to harvest it due to its low frequency and irregular amplitude, which may restrict the application of traditional power Generators. In this work, we report a hybrid nanoGenerator that consists of a spiral-interdigitated-electrode triboelectric nanoGenerator (S-TENG) and a wrap-around Electromagnetic Generator (W-EMG) for harvesting ocean energy. In this design, the S-TENG can be fully isolated from the external environment through packaging and indirectly driven by the noncontact attractive forces between pairs of magnets, and W-EMG can be easily hybridized. Notably, the hybrid nanoGenerator could generate electricity under either rotation mode or fluctuation mode to collect energy in ocean tide, current, and wave energy due to the unique structural design. In addition, the characteristics and advantages of outputs indicate that the S-TENG is irreplaceable for harvesting low rotation speeds (
Zhen Wen - One of the best experts on this subject based on the ideXlab platform.
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multifunctional power unit by hybridizing contact separate triboelectric nanoGenerator Electromagnetic Generator and solar cell for harvesting blue energy
Nano Energy, 2017Co-Authors: Huiyun Shao, Changjie Zhou, Mingfa Peng, Yanqin Yang, Xinkai Xie, Zhen Wen, Ping Cheng, Na Sun, Qingqing Shen, Xuhui SunAbstract:Abstract The complementary output of triboelectric nanoGenerator (TENG) and Electromagnetic Generator (EMG) can be hybridized and maximized for harvesting blue energy in a broad frequency range. How to optimally design and construct the hybrid structure still remains a challenge. In this work, we proposed a multifunctional hybrid power unit for harvesting blue energy, which consists of contact-separate mode triboelectric nanoGenerators (CS-TENGs), freestanding sliding mode Electromagnetic Generators (FS-EMGs) and commercial water-proof silicon based solar cells (WS-SCs). When harvesting ocean wave kinetic energy, the bottom magnet in FS-EMG moves forth and back driven by the wave motion and makes the top magnet shake upward or downward, thus the two triboelectric layers of CS-TENG contact and separate constantly. The magnet pairs produce the noncontact attractive force that enables the fully enclosed packaging of the TENG part, protecting it from ambient environment. The TENGs effectively harvest low-frequency (
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fully packaged blue energy harvester by hybridizing a rolling triboelectric nanoGenerator and an Electromagnetic Generator
ACS Nano, 2016Co-Authors: Xin Wang, Zhen Wen, Long Lin, Hengyu Guo, Xia Cao, Zhong Lin WangAbstract:Ocean energy, in theory, is an enormous clean and renewable energy resource that can generate electric power much more than that required to power the entire globe without adding any pollution to the atmosphere. However, owing to a lack of effective technology, such blue energy is almost unexplored to meet the energy requirement of human society. In this work, a fully packaged hybrid nanoGenerator consisting of a rolling triboelectric nanoGenerator (R-TENG) and an Electromagnetic Generator (EMG) is developed to harvest water motion energy. The outstanding output performance of the R-TENG (45 cm3 in volume and 28.3 g in weight) in the low-frequency range (<1.8 Hz) complements the ineffective output of EMG (337 cm3 in volume and 311.8 g in weight) in the same range and thus enables the hybrid nanoGenerator to deliver valuable outputs in a broad range of operation frequencies. Therefore, the hybrid nanoGenerator can maximize the energy conversion efficiency and broaden the operating frequency simultaneously....
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harvesting broad frequency band blue energy by a triboelectric Electromagnetic hybrid nanoGenerator
ACS Nano, 2016Co-Authors: Zhen Wen, Xin Wang, Hengyu Guo, Min-hsin Yeh, Jianan Deng, Jie Wang, Liping ZhuAbstract:Ocean wave associated energy is huge, but it has little use toward world energy. Although such blue energy is capable of meeting all of our energy needs, there is no effective way to harvest it due to its low frequency and irregular amplitude, which may restrict the application of traditional power Generators. In this work, we report a hybrid nanoGenerator that consists of a spiral-interdigitated-electrode triboelectric nanoGenerator (S-TENG) and a wrap-around Electromagnetic Generator (W-EMG) for harvesting ocean energy. In this design, the S-TENG can be fully isolated from the external environment through packaging and indirectly driven by the noncontact attractive forces between pairs of magnets, and W-EMG can be easily hybridized. Notably, the hybrid nanoGenerator could generate electricity under either rotation mode or fluctuation mode to collect energy in ocean tide, current, and wave energy due to the unique structural design. In addition, the characteristics and advantages of outputs indicate that the S-TENG is irreplaceable for harvesting low rotation speeds ( 10 Hz). The complementary output can be maximized and hybridized for harvesting energy in a broad frequency range. Finally, a single hybrid nanoGenerator unit was demonstrated to harvest blue energy as a practical power source to drive several LEDs under different simulated water wave conditions. We also proposed a blue energy harvesting system floating on the ocean surface that could simultaneously harvest wind, solar, and wave energy. The proposed hybrid nanoGenerator renders an effective and sustainable progress in practical applications of the hybrid nanoGenerator toward harvesting water wave energy offered by nature.
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Harvesting Broad Frequency Band Blue Energy by a Triboelectric–Electromagnetic Hybrid NanoGenerator
2016Co-Authors: Zhen Wen, Xin Wang, Hengyu Guo, Min-hsin Yeh, Jianan Deng, Jie Wang, Liping ZhuAbstract:Ocean wave associated energy is huge, but it has little use toward world energy. Although such blue energy is capable of meeting all of our energy needs, there is no effective way to harvest it due to its low frequency and irregular amplitude, which may restrict the application of traditional power Generators. In this work, we report a hybrid nanoGenerator that consists of a spiral-interdigitated-electrode triboelectric nanoGenerator (S-TENG) and a wrap-around Electromagnetic Generator (W-EMG) for harvesting ocean energy. In this design, the S-TENG can be fully isolated from the external environment through packaging and indirectly driven by the noncontact attractive forces between pairs of magnets, and W-EMG can be easily hybridized. Notably, the hybrid nanoGenerator could generate electricity under either rotation mode or fluctuation mode to collect energy in ocean tide, current, and wave energy due to the unique structural design. In addition, the characteristics and advantages of outputs indicate that the S-TENG is irreplaceable for harvesting low rotation speeds (
Xue Wang - One of the best experts on this subject based on the ideXlab platform.
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a fully packaged and robust hybridized Generator for harvesting vertical rotation energy in broad frequency band and building up self powered wireless systems
Nano Energy, 2017Co-Authors: Jie Chen, Yi Xi, Hengyu Guo, Guanlin Liu, Muhammad Sufyan Javed, Xue Wang, Chenguo HuAbstract:Abstract Harvesting energies from surroundings to build up self-powered sensing systems is very useful in our daily life. In this work, we design a cylinder-like fully-packaged hybrid nanoGenerator for harvesting vertical rotation energy in broad frequency band by utilizing a magnet rod as the trigger to drive contact-separation mode triboelectric nanoGenerator (TENG), and by coupling magnet rod with copper coils to operate Electromagnetic Generator (EMG). The stator-free structure makes the device more facile to be installed on the rotation objects. The output performances of TENG and EMG under various rotation speeds are systematically studied and clearly demonstrated by installing the device on a balance car, which proves that TENG can be more effective for low-frequency (
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Hybridized nanoGenerator for simultaneously scavenging mechanical and thermal energies by Electromagnetic-triboelectric-thermoelectric effects
Nano Energy, 2016Co-Authors: Xue Wang, Zhong Lin Wang, Ya YangAbstract:High-efficiency rotation based energy harvesters require simultaneous scavenging of mechanical energy and rotation-induced wasted thermal energy. A hybridized nanoGenerator is reported that has an Electromagnetic Generator (EMG), a triboelectric nanoGenerator (TENG), and a thermoelectric Generator (ThEG) for simultaneously harvesting mechanical and thermal energies in one process. As driven by the relative rotation motions between two disks, all of the EMG, TENG and ThEG can deliver outputs due to the cooperative operation of Electromagnetic, triboelectric, and thermoelectric effects. With increasing the working time of the hybridized nanoGenerator, the output power of EMG can be kept in a stable value, and an obvious increase can be seen for the output power of ThEG, while the output power of TENG exhibited a dramatic decrease. By using the power management circuits, all of the EMG, TENG, and ThEG devices can deliver a constant output voltage of 5 V, where the hybridized nanoGenerator can produce a pulsed output current peak of about 160 mA. Moreover, the hybridized nanoGenerator has been successfully installed in a commercial bicycle to scavenge biomechanical energy for lighting up globe lights and charging up a cell phone.
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rotating disk based hybridized Electromagnetic triboelectric nanoGenerator for scavenging biomechanical energy as a mobile power source
Nano Energy, 2015Co-Authors: Xiandai Zhong, Zhong Lin Wang, Xue Wang, Ya YangAbstract:Abstract Scavenging biomechanical energy from human motions as a mobile power source has potential applications for driving some personal electronics, especially in the remote areas. A critical issue is how to obtain high efficient electric energy from one mechanical motion. Here, we report a rotating-disk-based hybridized nanoGenerator that consists of an Electromagnetic Generator (EMG) and a triboelectric nanoGenerator (TENG) for simultaneously scavenging biomechanical energy from one rotating motion. Operated at a rotating rate of 200 r/min, the EMG and TENG can produce an output powers of about 8.4 mW (in correspondence of power per unit mass/volume: 24 μW/g and 56 W/m3) at a loading resistance of 12 Ω and 8.6 mW (in correspondence of power per unit mass/volume: 119 μW/g and 261 W/m3) at a loading resistance of 0.2 MΩ, respectively. The generated electrical energy of the hybridized nanoGenerator is about two times larger than that of individual energy harvesting unit (EMG or TENG) under the same working time. The hybridized nanoGenerator can be utilized to effectively harness the biomechanical energy from a human hand induced rotating motions for sustainably driving a commercial globe light with an intensity of illumination up to 1700 lx.
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hybridized Electromagnetic triboelectric nanoGenerator for scavenging biomechanical energy for sustainably powering wearable electronics
ACS Nano, 2015Co-Authors: Kewei Zhang, Xue Wang, Ya Yang, Zhong Lin WangAbstract:We report a hybridized Electromagnetic–triboelectric nanoGenerator for highly efficient scavenging of biomechanical energy to sustainably power wearable electronics by human walking. Based on the effective conjunction of triboelectrification and Electromagnetic induction, the hybridized nanoGenerator, with dimensions of 5 cm × 5 cm × 2.5 cm and a light weight of 60 g, integrates a triboelectric nanoGenerator (TENG) that can deliver a peak output power of 4.9 mW under a loading resistance of 6 MΩ and an Electromagnetic Generator (EMG) that can deliver a peak output power of 3.5 mW under a loading resistance of 2 kΩ. The hybridized nanoGenerator exhibits a good stability for the output performance and a much better charging performance than that of an individual energy-harvesting unit (TENG or EMG). Furthermore, the hybridized nanoGenerator integrated in a commercial shoe has been utilized to harvest biomechanical energy induced by human walking to directly light up tens of light-emitting diodes in the shoe...
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hybridized Electromagnetic triboelectric nanoGenerator for scavenging biomechanical energy for sustainably powering wearable electronics
ACS Nano, 2015Co-Authors: Kewei Zhang, Zhong Lin Wang, Xue Wang, Ya YangAbstract:We report a hybridized Electromagnetic-triboelectric nanoGenerator for highly efficient scavenging of biomechanical energy to sustainably power wearable electronics by human walking. Based on the effective conjunction of triboelectrification and Electromagnetic induction, the hybridized nanoGenerator, with dimensions of 5 cm × 5 cm × 2.5 cm and a light weight of 60 g, integrates a triboelectric nanoGenerator (TENG) that can deliver a peak output power of 4.9 mW under a loading resistance of 6 MΩ and an Electromagnetic Generator (EMG) that can deliver a peak output power of 3.5 mW under a loading resistance of 2 kΩ. The hybridized nanoGenerator exhibits a good stability for the output performance and a much better charging performance than that of an individual energy-harvesting unit (TENG or EMG). Furthermore, the hybridized nanoGenerator integrated in a commercial shoe has been utilized to harvest biomechanical energy induced by human walking to directly light up tens of light-emitting diodes in the shoe and sustainably power a smart pedometer for reading the data of a walking step, distance, and energy consumption. A wireless pedometer driven by the hybrid nanoGenerator can work well to send the walking data to an iPhone under the distance of 25 m. This work pushes forward a significant step toward energy harvesting from human walking and its potential applications in sustainably powering wearable electronics.
Yi Xi - One of the best experts on this subject based on the ideXlab platform.
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rolling friction contact separation mode hybrid triboelectric nanoGenerator for mechanical energy harvesting and self powered multifunctional sensors
Nano Energy, 2018Co-Authors: Hongmei Yang, Yi Xi, Mingfeng Wang, Tong Li, Xiang Ji, Xiaogan LiAbstract:Abstract Collecting mechanical energy in the surrounding environment to power small electronic devices is an ideal method as a green and clean power source. Based on the working mechanism and the advantages of triboelectric nanoGenerator (TENG), a robust rolling friction contact-separation mode TENG (CS-TENG) has been fabricated for harvesting vertical rotation energy by utilizing the integrated cylindrical surface with the conjunction of rolling contact electrification and electrostatic induction. The output current of the CS-TENG can maintain 96% (origin: 1.72 μA, final: 1.66 μA) after two days continuous work a rotation speed of 300 r/min. Furthermore, an Electromagnetic and triboelectric hybrid contact-separation mode nanoGenerator (HCS-TENG) has been further designed by coupling magnets in the rolling cylinders with copper coils as an Electromagnetic Generator (EMG) in the acrylic cylinder to implement the multi-functional properties. The gear transmission structure makes the device more facile to be installed on the rotation objects. The output performances of CS-TENG and EMG under various rotation speeds were systematically studied. It shows that the CS-TENG with six units can deliver an output power of 0.15 mW/cm2 and the 100 μF capacitor can be charged to 6 V in less than 1 min by the hybridized nanoGenerator at a rotating rate of 700 r/min. In addition, utilizing the output signal's intrinsic characteristics of CS-TENG, a self-powered rotation speed and displacement sensor using the dual cylinder structure TENG has been achieved for these rotating mobile devices that are inconvenient to get an additional power supply in the grimmest circumstances such as moon car or other celestial and tough environment detection equipment. This multifunctional TENG device reveals a significantly potential application in the grimmest circumstances as power source, self-powered electronics and sensor systems.
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a fully packaged and robust hybridized Generator for harvesting vertical rotation energy in broad frequency band and building up self powered wireless systems
Nano Energy, 2017Co-Authors: Jie Chen, Yi Xi, Hengyu Guo, Guanlin Liu, Muhammad Sufyan Javed, Xue Wang, Chenguo HuAbstract:Abstract Harvesting energies from surroundings to build up self-powered sensing systems is very useful in our daily life. In this work, we design a cylinder-like fully-packaged hybrid nanoGenerator for harvesting vertical rotation energy in broad frequency band by utilizing a magnet rod as the trigger to drive contact-separation mode triboelectric nanoGenerator (TENG), and by coupling magnet rod with copper coils to operate Electromagnetic Generator (EMG). The stator-free structure makes the device more facile to be installed on the rotation objects. The output performances of TENG and EMG under various rotation speeds are systematically studied and clearly demonstrated by installing the device on a balance car, which proves that TENG can be more effective for low-frequency (