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

Tabaie, Zahrasadat; Omidvar, Amir

doi:10.1016/j.heliyon.2023.e14707

Cited by 20 publications

(4 citation statements)

References 84 publications

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“…Furthermore, the low thermal contact resistance between the human body and thermoelectric nanogenerators is challenging in the design of wearable thermoelectric biosensors due to their structural configuration. 341 In general, the low conversion efficiency of thermoelectric nanogenerators prevents their widespread use and has mostly limited them to an academic topic. 342 Materials based on bismuth telluride are considered as the most suitable candidates for thermoelectric systems at room temperature.…”

Section: Sensorsmentioning

confidence: 99%

“…In addition, outstanding features such as low electrical resistance, high stability, low noise, continuous electrical current generation, high stability, and durability make them suitable candidates for the fabrication of wearable or implantable biosensors. , Despite these advantages, thermoelectric nanogenerators suffer from fragility and low ZT of some thermoelectric materials used in their structure, as well as low temperature differences between hot and cold plates due to low thermal resistance. Furthermore, the low thermal contact resistance between the human body and thermoelectric nanogenerators is challenging in the design of wearable thermoelectric biosensors due to their structural configuration . In general, the low conversion efficiency of thermoelectric nanogenerators prevents their widespread use and has mostly limited them to an academic topic …”

Section: Self-powered Physical/biophysical Sensorsmentioning

confidence: 99%

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Advancements in Bio-inspired Self-Powered Wireless Sensors: Materials, Mechanisms, and Biomedical Applications

Farzin,

Naghib,

Rabiee

2024

ACS Biomater. Sci. Eng.

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The rapid maturation of smart city ecosystems is intimately linked to advances in the Internet of Things (IoT) and self-powered sensing technologies. Central to this evolution are battery-less sensors that are critical for applications such as continuous health monitoring through blood metabolites and vital signs, the recognition of human activity for behavioral analysis, and the operational enhancement of humanoid robots. The focus on biosensors that exploit the human body for energy-spanning wearable, attachable, and implantable variants has intensified, driven by their broad applicability in areas from underwater exploration to biomedical assays and earthquake monitoring. The heart of these sensors lies in their diverse energy harvesting mechanisms, including biofuel cells, and piezoelectric, triboelectric, and pyroelectric nanogenerators. Notwithstanding the wealth of research, the literature still lacks a holistic review that integrates the design challenges and implementation intricacies of such sensors. Our review seeks to fill this gap by thoroughly evaluating energy harvesting strategies from both material and structural perspectives and assessing their roles in powering an array of sensors for myriad uses. This exploration offers a comprehensive outlook on the state of self-powered sensing devices, tackling the nuances of their deployment and highlighting their potential to revolutionize data gathering in autonomous systems. The intent of this review is to chart the current landscape and future prospects, providing a pivotal reference point for ongoing research and innovation in selfpowered wireless sensing technologies.

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Section: Sensorsmentioning

confidence: 99%

Section: Self-powered Physical/biophysical Sensorsmentioning

confidence: 99%

Advancements in Bio-inspired Self-Powered Wireless Sensors: Materials, Mechanisms, and Biomedical Applications

Farzin,

Naghib,

Rabiee

2024

ACS Biomater. Sci. Eng.

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show abstract

“…Concentration difference effects focus on regulating the Seebeck coefficient, which requires a specific ion in the redox couple to combine with the additive to form a temperature-sensitive substance in order to enable the formation of concentration difference effects of ions at the hot and cold terminals of the electrodes. This effect has a great ability to regulate the Seebeck coefficient and can also change the direction of the redox reaction; however, the resulting conjugates may influence the rate of the redox reaction, resulting in irreversible side-reactions during the thermal cell cycling, which causes a decrease in the cycling performance and, finally, an attenuation of the output power [27,[41][42][43].…”

Section: Electrochemical Thermogalvanic Effectmentioning

confidence: 99%

Design and Optimization Strategies for Flexible Quasi-Solid-State Thermo-Electrochemical Cells

Huo,

Kuang,

Guo

2023

Materials

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Currently, efficient utilization of low-grade thermal energy is a great challenge. Thermoelectricity is an extremely promising method of generating electrical energy from temperature differences. As a green energy conversion technology, thermo-electrochemical cells (TECs) have attracted much attention in recent years for their ability to convert thermal energy directly into electricity with high thermal power. Within TECs, anions and cations gain and lose electrons, respectively, at the electrodes, using the potential difference between the hot and cold terminals of the electrodes by redox couples. Additionally, the anions and cations therein are constantly circulating and mobile via concentration diffusion and thermal diffusion, providing an uninterrupted supply of power to the exterior. This review article focuses mainly on the operation of TECs and recent advances in redox couples, electrolytes, and electrodes. The outlook for optimization strategies regarding TECs is also outlined in this paper.

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“…Another promising energy harvesting technology refers to thermoelectric generators, which can convert temperature gradients into electrical energy [28]. By utilizing temperature differences between the human body and the surrounding environment, thermoelectric cells can harvest energy from the heat dissipated by the body [29]. This sustainable approach provides a constant power source for wearable devices, eliminating the need for external power supplies or battery replacements.…”

Section: Introductionmentioning

confidence: 99%

Hydrogel-Based Energy Harvesters and Self-Powered Sensors for Wearable Applications

Wang,

Li,

Zhang

et al. 2023

Nanoenergy Advances

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Collecting ambient energy to power various wearable electronics is considered a prospective approach to addressing their energy consumption. Mechanical and thermal energies are abundantly available in the environment and can be efficiently converted into electricity based on different physical effects. Hydrogel-based energy harvesters have turned out to be a promising solution, owing to their unique properties including flexibility and biocompatibility. In this review, we provide a concise overview of the methods and achievements in hydrogel-based energy harvesters, including triboelectric nanogenerators, piezoelectric nanogenerators, and thermoelectric generators, demonstrating their applications in power generation, such as LED lighting and capacitor charging. Furthermore, we specifically focus on their applications in self-powered wearables, such as detecting human motion/respiration states, monitoring joint flexion, promoting wound healing, and recording temperature. In addition, we discuss the progress in the sensing applications of hydrogel-based self-powered electronics by hybridizing multiple energy conversion in the field of wearables. This review analyzes hydrogel-based energy harvesters and their applications in self-powered sensing for wearable devices, with the aim of stimulating ongoing advancements in the field of smart sensors and intelligent electronics.

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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

Cited by 20 publications

References 84 publications

Advancements in Bio-inspired Self-Powered Wireless Sensors: Materials, Mechanisms, and Biomedical Applications

Advancements in Bio-inspired Self-Powered Wireless Sensors: Materials, Mechanisms, and Biomedical Applications

Design and Optimization Strategies for Flexible Quasi-Solid-State Thermo-Electrochemical Cells

Hydrogel-Based Energy Harvesters and Self-Powered Sensors for Wearable Applications

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