Hybrid energy harvesting technology: From materials, structural design, system integration to applications

Liu, Huicong; Fu, Hailing; Sun, Lining; Lee, Chengkuo; Yeatman, Eric M.

doi:10.1016/j.rser.2020.110473

Cited by 229 publications

(108 citation statements)

References 217 publications

(344 reference statements)

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“…Therefore, hybrid solutions, where solar energy harvesting is complemented by other mechanisms or power supplies have been proposed [41], [48], [99]. Hybrid energy harvesters combine circuits that generate power from single energy sources, such as solar, radio frequency, and vibrations and can also use multiple types of transduction mechanisms for converting energy to electricity [100]. By generating a power output equal to, or larger than the overall consumption of an IoT device for a certain period, energyautonomy is achieved.…”

Section: E Hybrid Energy Harvestingmentioning

confidence: 99%

Energy Harvesting Techniques for Internet of Things (IoT)

et al. 2021

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The rapid growth of the Internet of Things (IoT) has accelerated strong interests in the development of low-power wireless sensors. Today, wireless sensors are integrated within IoT systems to gather information in a reliable and practical manner to monitor processes and control activities in areas such as transportation, energy, civil infrastructure, smart buildings, environment monitoring, healthcare, defense, manufacturing, and production. The long-term and self-sustainable operation of these IoT devices must be considered early on when they are designed and implemented. Traditionally, wireless sensors have often been powered by batteries, which, despite allowing low overall system costs, can negatively impact the lifespan and the performance of the entire network they are used in. Energy Harvesting (EH) technology is a promising environment-friendly solution that extends the lifetime of these sensors, and, in some cases completely replaces the use of battery power. In addition, energy harvesting offers economic and practical advantages through the optimal use of energy, and the provisioning of lower network maintenance costs. We review recent advances in energy harvesting techniques for IoT. We demonstrate two energy harvesting techniques using case studies. Finally, we discuss some future research challenges that must be addressed to enable the large-scale deployment of energy harvesting solutions for IoT environments.

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Section: E Hybrid Energy Harvestingmentioning

confidence: 99%

Energy Harvesting Techniques for Internet of Things (IoT)

et al. 2021

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“…Although TENG and PENG have their distinctive advancement and have shown significant development since their inventions, in some cases, the output power of a sole TENG/PENG generally cannot completely fulfill the power requirements of the widely used wearable electronic devices with limited energy conversion efficiencies ( Khan et al., 2019 ; Zi et al., 2015 ). At the same time, biomechanical energy sources usually include various types of human motions, and an EH with a single mechanism may not be able to fully utilize all of the mechanical energy generated by such movements ( Liu et al., 2020a ; Zhang et al., 2019b ). Therefore, hybridized wearable EHs with the combination of multiple energy conversion mechanisms, including TENG, PENG, and EMG, have been put forward for harvesting mechanical energy, which can leverage the advantages of each mechanism's characteristics and as a complementary part for each other ( Tang et al., 2021 ; Wang et al., 2021 ; Zhu et al., 2021 ).…”

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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“…In addition to the integration with PENGs, TENGs can also be combined with other mechanisms for the wearable application [ 166 , 167 ]. Among these mechanisms, EMGs normally exhibit high current outputs that would be a good complement to the TENG's high voltage outputs [ 108 , 168 , 169 ].…”

Section: Teng-based Hybrid Generators On Human Bodiesmentioning

confidence: 99%

Triboelectric Nanogenerators and Hybridized Systems for Enabling Next-Generation IoT Applications

et al. 2021

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In the past few years, triboelectric nanogenerator-based (TENG-based) hybrid generators and systems have experienced a widespread and flourishing development, ranging among almost every aspect of our lives, e.g., from industry to consumer, outdoor to indoor, and wearable to implantable applications. Although TENG technology has been extensively investigated for mechanical energy harvesting, most developed TENGs still have limitations of small output current, unstable power generation, and low energy utilization rate of multisource energies. To harvest the ubiquitous/coexisted energy forms including mechanical, thermal, and solar energy simultaneously, a promising direction is to integrate TENG with other transducing mechanisms, e.g., electromagnetic generator, piezoelectric nanogenerator, pyroelectric nanogenerator, thermoelectric generator, and solar cell, forming the hybrid generator for synergetic single-source and multisource energy harvesting. The resultant TENG-based hybrid generators utilizing integrated transducing mechanisms are able to compensate for the shortcomings of each mechanism and overcome the above limitations, toward achieving a maximum, reliable, and stable output generation. Hence, in this review, we systematically introduce the key technologies of the TENG-based hybrid generators and hybridized systems, in the aspects of operation principles, structure designs, optimization strategies, power management, and system integration. The recent progress of TENG-based hybrid generators and hybridized systems for the outdoor, indoor, wearable, and implantable applications is also provided. Lastly, we discuss our perspectives on the future development trend of hybrid generators and hybridized systems in environmental monitoring, human activity sensation, human-machine interaction, smart home, healthcare, wearables, implants, robotics, Internet of things (IoT), and many other fields.

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Hybrid energy harvesting technology: From materials, structural design, system integration to applications

Cited by 229 publications

References 217 publications

Energy Harvesting Techniques for Internet of Things (IoT)

Energy Harvesting Techniques for Internet of Things (IoT)

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

Triboelectric Nanogenerators and Hybridized Systems for Enabling Next-Generation IoT Applications

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