Textile-based moisture power generator with dual asymmetric structure and high flexibility for wearable applications

He, Wenya; Wang, Haiyan; Huang, Yaxin; He, Tiancheng; Chi, Fengyao; Cheng, Huhu; Liu, Dong; Dai, Liming; Qu, Liangti

doi:10.1016/j.nanoen.2022.107017

Cited by 72 publications

(58 citation statements)

References 40 publications

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“…While energy harvesting with varying device designs from hydrated environments presents a high potential for self-powered sensors and devices, [212,214,224] the output power density is often not sufficient to drive key electronics such as wireless transmitters. As a simple solution, these nanogenerators can be connected in series or parallel to provide higher output voltage or current for powering common electronic devices (Figure 11c).…”

Section: Discussionmentioning

confidence: 99%

“…[ 223 ] The dual asymmetric structure design further enhances the concentration difference of charge carriers for efficiently driving the diffusion of ions in the MENG, resulting in a high open‐circuit voltage of up to 1 V and a short‐circuit current of 1.7 µA (Figure 10f). [ 224 ] The power source integrated into the T‐shirt is sufficient to drive commercial wearable electronics such as electronic watches and display screens.…”

Section: Application Of Surface Wettability In Skin‐interfaced Sensor...mentioning

confidence: 99%

mentioning

confidence: 99%

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Surface Wettability for Skin‐Interfaced Sensors and Devices

Wang

Liu

Cheng

et al. 2022

Adv Funct Materials

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The practical applications of skin-interfaced sensors and devices in daily life hinge on the rational design of surface wettability to maintain device integrity and achieve improved sensing performance under complex hydrated conditions. Various bioinspired strategies have been implemented to engineer desired surface wettability for varying hydrated conditions. Although the bodily fluids can negatively affect the device performance, they also provide a rich reservoir of health-relevant information and sustained energy for next-generation stretchable self-powered devices. As a result, the design and manipulation of the surface wettability are critical to effectively control the liquid behavior on the device surface for enhanced performance. The sensors and devices with engineered surface wettability can collect and analyze health biomarkers while being minimally affected by bodily fluids or ambient humid environments. The energy harvesters also benefit from surface wettability design to achieve enhanced performance for powering on-body electronics. This review first summarizes the commonly used approaches to tune the surface wettability for target applications toward skin-interfaced sensors and devices. By considering the existing challenges, one also discusses the opportunities as a small fraction of potential future developments, which can lead to a new class of skin-interfaced devices for use in digital health and personalized medicine.

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Section: Discussionmentioning

confidence: 99%

Section: Application Of Surface Wettability In Skin‐interfaced Sensor...mentioning

confidence: 99%

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Surface Wettability for Skin‐Interfaced Sensors and Devices

Wang

Liu

Cheng

et al. 2022

Adv Funct Materials

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“…Recent progress has been focused on hybrids of graphene derivatives/polyelectrolytes with different polymers to improve MEGs. [24][25][26][27] Here, we propose a new design to harvest the energy of moisture flow using an ionic polymer-hydrogel-carbon composite (IPHC) (Fig. 1A).…”

Section: Introductionmentioning

confidence: 99%

“…Recent progress has been focused on hybrids of graphene derivatives/polyelectrolytes with different polymers to improve MEGs. 24–27…”

Section: Introductionmentioning

confidence: 99%

Hydrovoltaic energy harvesting from moisture flow using an ionic polymer–hydrogel–carbon composite

Liu

Wang

et al. 2022

Energy Environ. Sci.

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Moist‐Electric Generator with Efficient Output and Scalable Integration Based on Carbonized Polymer Dot and Liquid Metal Active Electrode

Qin

Cheng

et al. 2023

Adv Funct Materials

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Moisture-enabled electricity generation (MEG) is highly promising in nextgeneration energy conversion. However, the practical applications of existing MEG devices are limited due to their low current and voltage outputs, strong dependence on high moisture, and inflexible nature. Herein, an efficient MEG integrated with flexible, all-weather, and scalable fabrication characteristics based on the rational combination of carbonized polymer dots (CPDs) and liquid metal (LM) active electrodes is developed for the first time. Remarkably, the fabricated MEG device can produce a stable voltage output of 800 mV and a record high current density of 1640 µA cm −2 . Even at a low air humidity of 15%, the MEG device can provide a high voltage output of 0.65 V and a considerable current density of 12 µA cm −2 . The prompted diffusion of hydrogen ions in CPDs and the additional metal ions ionized from the LM electrode contribute synergistically to the high electricity generation. Additionally, the device can be easily integrated on various flexible substrates and generate an ultrahigh voltage of 210 V to power commercial electronics, showing great potential in large-scale fabrication and application.

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Textile-based moisture power generator with dual asymmetric structure and high flexibility for wearable applications

Cited by 72 publications

References 40 publications

Surface Wettability for Skin‐Interfaced Sensors and Devices

Surface Wettability for Skin‐Interfaced Sensors and Devices

Hydrovoltaic energy harvesting from moisture flow using an ionic polymer–hydrogel–carbon composite

Moist‐Electric Generator with Efficient Output and Scalable Integration Based on Carbonized Polymer Dot and Liquid Metal Active Electrode

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