Flexible hybrid piezo/triboelectric energy harvester with high power density workable at elevated temperatures

Sun, Yifei; Lu, Yun; Li, Xiaoning; Yu, Zhou; Zhang, Shujun; Sun, Huajun; Cheng, Zhenxiang

doi:10.1039/d0ta04612d

Cited by 45 publications

(28 citation statements)

References 36 publications

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“…The improved output performance is presented in Figure 4 D(iii), in which a significant enhancement can be noticed through this hybridization structure compared with a single mechanism. Figure 4 E shows another flexible hybrid EH with PENG and TENG ( Sun et al., 2020b ). A polyimide (PI) layer was first spin-cast onto a glass substrate and then coated with interdigital (ID) electrodes.…”

Section: Hybridized Ehs For a Single Energy Sourcementioning

confidence: 99%

Flourishing energy harvesters for future body sensor network: from single to multiple energy sources

Guo

Lee

2021

iScience

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Summary Body sensor network (bodyNET) offers possibilities for future disease diagnosis, preventive health care, rehabilitation, and treatment. However, the eventual realization demands reliable and sustainable power sources. The flourishing energy harvesters (EHs) have provided prominent techniques for practically addressing the concurrent energy issue. Targeting for a specific energy source, wearable EHs with a sole conversion mechanism are well investigated. Hybrid EHs integrating different effects for a single source or multi-sources are attaining growing attention, for they provide another degree of freedom concerning a higher-level energy utility. Merging EHs with other functional electronics, diversified functional self-sustainable systems are developed, paving the way for the accomplishment of bodyNET. This review introduces the evolution of wearable EHs from a single effect to hybridized mechanisms for multiple energy sources and wearable to implantable self-sustainable systems. Last, we provide our perspectives on the future development of hybrid EHs to be more competitive with conventional batteries.

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Section: Hybridized Ehs For a Single Energy Sourcementioning

confidence: 99%

Flourishing energy harvesters for future body sensor network: from single to multiple energy sources

Guo

Lee

2021

iScience

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“…To achieve a good performance at high temperature, Sun et al reported a soft hybridized PENG-TENG (Figure 3D) on the basis of piezoelectric ceramic particles. This device exhibited good temperature stability at a temperature of 200 C and can generate an output power of 560 nA and 150 V (Sun et al, 2020). Chen et al analyzed the basic principle of contactmode hybridized generator (Figure 3E) from the transfer of charge, current, voltage, and average output power from hybridized nanogenerator's material properties, structural parameters, and operational conditions.…”

Section: Hybridized Piezoelectric-triboelectric Nanogeneratormentioning

confidence: 99%

Recent Progress in Hybridized Nanogenerators for Energy Scavenging

et al. 2020

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As the world's demand for alternative energy increases, the development of green energy harvesters becomes ever more important. As a result, the creation of triboelectric (TENG), piezoelectric (PENG), and pyroelectric nanogenerators, electromagnetic generators (EMG), solar cells, and electrochemical cells is attracting interest in an effort to convert mechanical, thermal, magnetic, solar, and chemical energy into electricity. In order to take advantage of the ambient energies from our surrounding environment, the design of hybridized generator units that can simultaneously scavenge energy in a variety of forms continues to develop. These systems are being considered to satisfy the energy needs of a range of electronic devices and adapt to a variety of working environments. This review demonstrates the latest progress in hybridized nanogenerators in accordance with their structure, operating principle, and applications. These studies demonstrate new approaches to developing hybrid techniques and novel assemblies for efficiently harvesting environmental energy from a number of sources.

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“…[70][71][72] Hybridized devices combining the characteristics and advantages of the two prominent mechanisms have also been thoroughly investigated to further extend the systematic performance and capability in divergent applications. [73][74][75][76] Typically, lower-limb rehabilitation is desperately in need of a wearable mobile machine, i.e., exoskeleton, to support and assist the lower-limb motion of the patients suffering from impaired ambulation. [77,78] Due to the high requirement on structural strength and endurance, the exoskeletons are mostly constructed with rigid mechanical components that wrap around the lower limb and designed with movable joints to allow for the free movement of the lower limb.…”

Section: Introductionmentioning

confidence: 99%

“…[ 70 , 71 , 72 ] Hybridized devices combining the characteristics and advantages of the two prominent mechanisms have also been thoroughly investigated to further extend the systematic performance and capability in divergent applications. [ 73 , 74 , 75 , 76 ]…”

Section: Introductionmentioning

confidence: 99%

A Motion Capturing and Energy Harvesting Hybridized Lower‐Limb System for Rehabilitation and Sports Applications

Gao

Zhang

et al. 2021

Advanced Science

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Lower-limb motion monitoring is highly desired in various application scenarios ranging from rehabilitation to sports training. However, there still lacks a cost-effective, energy-saving, and computational complexity-reducing solution for this specific demand. Here, a motion capturing and energy harvesting hybridized lower-limb (MC-EH-HL) system with 3D printing is demonstrated. It enables low-frequency biomechanical energy harvesting with a sliding block-rail piezoelectric generator (S-PEG) and lower-limb motion sensing with a ratchet-based triboelectric nanogenerator (R-TENG). A unique S-PEG is proposed with particularly designed mechanical structures to convert lower-limb 3D motion into 1D linear sliding on the rail. On the one hand, high output power is achieved with the S-PEG working at a very low frequency, which realizes self-sustainable systems for wireless sensing under the Internet of Things framework. On the other hand, the R-TENG gives rise to digitalized triboelectric output, matching the rotation angles to the pulse numbers. Additional physical parameters can be estimated to enrich the sensory dimension. Accordingly, demonstrative rehabilitation, human-machine interfacing in virtual reality, and sports monitoring are presented. This developed hybridized system exhibits an economic and energy-efficient solution to support the need for lower-limb motion tracking in various scenarios, paving the way for self-sustainable multidimensional motion tracking systems in near future.

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Flexible hybrid piezo/triboelectric energy harvester with high power density workable at elevated temperatures

Abstract: Eco-friendly energy harvesters with high output for effectively harvesting mechanical energy over a broad temperature range.

Cited by 45 publications

References 36 publications

Flourishing energy harvesters for future body sensor network: from single to multiple energy sources

Flourishing energy harvesters for future body sensor network: from single to multiple energy sources

Recent Progress in Hybridized Nanogenerators for Energy Scavenging

A Motion Capturing and Energy Harvesting Hybridized Lower‐Limb System for Rehabilitation and Sports Applications

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