A Review of Human-Powered Energy Harvesting for Smart Electronics: Recent Progress and Challenges

Khalid, Salman; Raouf, Izaz; Khan, Asif; Kim, Nayeon; Kim, Heung Soo

doi:10.1007/s40684-019-00144-y

Cited by 142 publications

(92 citation statements)

References 224 publications

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“…With the advancement of science and technology, multifunctional portable electronics, such as fitness/healthcare monitors, are being use more frequently in our daily life . Likewise, the wireless sensor networks (WSNs) and the Internet of Things (IoT) are flourishing in recent years, which critically rely on a large number of sensors .…”

Section: Introductionmentioning

confidence: 99%

Biomechanical Energy‐Driven Hybridized Generator as a Universal Portable Power Source for Smart/Wearable Electronics

Rahman

Rana

Salauddin

et al. 2020

Advanced Energy Materials

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The fast growth of smart electronics requires novel solutions to power them sustainably. Portable power sources capable of harvesting biomechanical energy are a promising modern approach to reduce battery dependency. Herein, a novel elastic impact‐based nonresonant hybridized generator (EINR‐HG) is reported to effectively harvest biomechanical energy from diverse human activities outdoors. Through the rational integration of a nonlinear electromagnetic generator with two contact‐mode triboelectric nanogenerators, the proposed EINR‐HG generates hybrid electrical output simultaneously under the same mechanical excitations. By introducing a flux‐concentrator with a nanowire‐nanofiber surface modification, significant improvement in the energy harvesting efficiency of the EINR‐HG is achieved. After optimizing using simulations and vibration tests, the as‐fabricated EINR‐HG delivers an outstanding normalized power density of 3.13 mW cm−3 g−2 across a matching resistance of 1.5 kΩ at 6 Hz under 1 g acceleration. Under human motion testing, the EINR‐HG generates an optimal output power of 131.4 mW with horizontal handshaking. With a customized power management circuit, the EINR‐HG serves as a universal power source that successfully drives commercial smart electronics, including smart bands and smartphones. This work shows the massive potential of biomechanical energy‐driven hybridized generators for powering personal electronics and portable healthcare monitoring devices.

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Section: Introductionmentioning

confidence: 99%

Biomechanical Energy‐Driven Hybridized Generator as a Universal Portable Power Source for Smart/Wearable Electronics

Rahman

Rana

Salauddin

et al. 2020

Advanced Energy Materials

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“…The main challenge in developing a piezoelectric energy harvesting pavement is the low frequency of walking compared with the high operating bandwidth of piezoelectric energy harvesting systems. To obtain the best results, the operating excitation frequency must be within the range of the resonant frequency of the harvester [ 16 ]. For this, a frequency up-conversion technique must be used [ 29 ].…”

Section: Piezoelectricitymentioning

confidence: 99%

“…If the application needs high voltage, high energy density, high capacitance, and little mechanical damping [ 16 , 17 , 18 ], piezoelectric energy harvesting is the solution, with the observation that piezoelectric materials can be brittle or rigid and can be toxic [ 19 , 20 ]. For applications that do not need outside sources, instead of piezoelectric transducers, electromagnetic devices can also be used [ 17 ].…”

Section: Introductionmentioning

confidence: 99%

Piezoelectric Energy Harvesting Solutions: A Review

Covaci

Gontean

2020

Sensors

354

211

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The goal of this paper is to review current methods of energy harvesting, while focusing on piezoelectric energy harvesting. The piezoelectric energy harvesting technique is based on the materials’ property of generating an electric field when a mechanical force is applied. This phenomenon is known as the direct piezoelectric effect. Piezoelectric transducers can be of different shapes and materials, making them suitable for a multitude of applications. To optimize the use of piezoelectric devices in applications, a model is needed to observe the behavior in the time and frequency domain. In addition to different aspects of piezoelectric modeling, this paper also presents several circuits used to maximize the energy harvested.

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“…Self-powering is a new method to promote the durability of charged filtration nanofiber membranes [27] which can generate charges to capture particulate matter during the filtration process [28]. According to the generation principles of electrical charges, these methods can be divided into various catalogues including piezoelectric [29], electromagnetic [30] and triboelectric [31].…”

Section: Introductionmentioning

confidence: 99%

Self-Powered Electrospun Composite Nanofiber Membrane for Highly Efficient Air Filtration

et al. 2020

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Highly efficient air filtration with low pressure drop is the key to air purification. In this work, a self-powered electrospun nanofiber membrane with an electrostatic adsorption effect was prepared to improve the filtration efficiency of micro/nano particles. The composite membrane was comprised of polyvinyl chloride (PVC) nanofibers and polyamide-6 (PA6) nanofibers. The triboelectric effect between the two adjacent nanofiber membranes generated electrostatic charges under the action of air vibration, by which the electrostatic adsorption with the same pressure drop was enhanced. The electrostatic voltage on the self-powered nanofiber membrane was 257.1 mV when the flow velocity was 0.1 m/s. For sodium chloride (NaCl) aerosol particles with a diameter of 0.3 μm, the removal efficiency of the self-powered composite nanofiber membrane was 98.75% and the pressure drop was 67.5 Pa, which showed a higher quality factor than the membrane without electrostatic charges. This work provides an effective way to improve the filtration performance of air filter membranes.

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A Review of Human-Powered Energy Harvesting for Smart Electronics: Recent Progress and Challenges

Cited by 142 publications

References 224 publications

Biomechanical Energy‐Driven Hybridized Generator as a Universal Portable Power Source for Smart/Wearable Electronics

Biomechanical Energy‐Driven Hybridized Generator as a Universal Portable Power Source for Smart/Wearable Electronics

Piezoelectric Energy Harvesting Solutions: A Review

Self-Powered Electrospun Composite Nanofiber Membrane for Highly Efficient Air Filtration

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