Wearable thermoelectric generators as energy harvesters for wireless body sensors

Attar, Alaa; Albatati, Faisal

doi:10.1007/s40095-020-00365-x

Cited by 4 publications

(3 citation statements)

References 23 publications

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“…An increasing number of studies have investigated the application of TEGs, for example to supply energy-autonomous wireless sensor networks (WSN) 13,14 or body sensors. 15,16 At present, sensor nodes are still usually limited by their battery capacity and maintenance requirements, hence a lot of effort is spent on minimizing their energy consumption. 17,18 TEGs have no moving parts, require no maintenance and can replace batteries in many applications and environments that are difficult to access.…”

Section: Application Of Thermoelectric Generatorsmentioning

confidence: 99%

“…The second main application of TEGs is to provide minimal amounts of energy for autonomous powering of small electrical loads. An increasing number of studies have investigated the application of TEGs, for example to supply energy‐autonomous wireless sensor networks (WSN) 13,14 or body sensors 15,16 . At present, sensor nodes are still usually limited by their battery capacity and maintenance requirements, hence a lot of effort is spent on minimizing their energy consumption 17,18 …”

Section: Introductionmentioning

confidence: 99%

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Experimental application of a laser‐based manufacturing process to develop a free customizable, scalable thermoelectric generator demonstrated on a hot shaft

Abt

Kruppa

Wolf

et al. 2022

Engineering Reports

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Geometry, design, and processing in addition to the thermoelectric material properties have a significant influence on the economic efficiency and performance of thermoelectric generators (TEGs). While conventional BULK TEGs are elaborate to manufacture and allow only limited variations in geometry, printed TEGs are often restricted in their application and processing temperature due to the use of organic materials. In this work, a proof‐of‐concept for fabricating modular, customizable, and temperature‐stable TEGs is demonstrated by applying an alternative laser process. For this purpose, low temperature cofired ceramics substrates were coated over a large area, freely structured and cut without masks by a laser and sintered to a solid structure in a single optimized thermal post‐processing. A scalable design with complex geometry and large cooling surface for application on a hot shaft was realized to prove feasibility. Investigations on sintering characteristics up to a peak temperature of 1173 K, thermoelectric material properties and temperature distribution were carried out for a Ca3Co4O9/Ag‐based prototype and evaluated using profilometer, XRD, and IR measurements. For a combined post‐processing, an optimal sintering profile could be determined at 1073 K peak temperature with a 20 min holding time. Temperature gradients of up to 100 K could be achieved along a thermocouple. A single TEG module consisting of 12 thermocouples achieved a maximum power of 0.224 μW and open‐circuit voltage of 134.41 mV at an average hot‐side temperature of 413.6 K and temperature difference of 106.7 K. Three of these modules combined into a common TEG with a total of 36 thermocouples reached a maximum power of 0.58 K and open‐circuit voltage of 319.28 mV with a lesser average hot‐side temperature of 387.8 K and temperature difference of 83.4 K.

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Section: Application Of Thermoelectric Generatorsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Experimental application of a laser‐based manufacturing process to develop a free customizable, scalable thermoelectric generator demonstrated on a hot shaft

Abt

Kruppa

Wolf

et al. 2022

Engineering Reports

View full text Add to dashboard Cite

show abstract

“…Ultrasonic devices can generate signals from beneath human skin, therefore allowing remote transmission through human biomechanics. [ 25–29 ] Several designs and fabrication methods for thermoelectric materials have recently been reported to achieve mechanically compliant properties.…”

Section: Introductionmentioning

confidence: 99%

Energy Harvesting Untethered Soft Electronic Devices

Kim

Choi

2021

Adv Healthcare Materials

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Advances in wearable and stretchable electronic technologies have yielded a wide range of electronic devices that can be conformably worn by, or implanted in humans to measure physiological signals. Moreover, various cutting‐edge technologies for battery‐free electronic devices have led to advances in healthcare devices that can continuously measure long‐term biosignals for advanced human–machine interface and clinical diagnostics. This report presents the recent progress in battery‐less, wearable devices using a wide range of energy harvesting sources, such as electromagnetic energy, mechanical energy, and biofuels. Additionally, this report also discusses the principles and working mechanisms of near/far‐field communications, triboelectric, thermoelectric, and biofuel technologies.

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Human body heat-driven thermoelectric generators as a sustainable power supply for wearable electronic devices: Recent advances, challenges, and future perspectives

Tabaie¹,

Omidvar²

2023

Heliyon

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Wearable thermoelectric generators as energy harvesters for wireless body sensors

Cited by 4 publications

References 23 publications

Experimental application of a laser‐based manufacturing process to develop a free customizable, scalable thermoelectric generator demonstrated on a hot shaft

Experimental application of a laser‐based manufacturing process to develop a free customizable, scalable thermoelectric generator demonstrated on a hot shaft

Energy Harvesting Untethered Soft Electronic Devices

Human body heat-driven thermoelectric generators as a sustainable power supply for wearable electronic devices: Recent advances, challenges, and future perspectives

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