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231226s2022 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202200693
|2 doi
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|a eng
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|a Yang, Su
|e verfasserin
|4 aut
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|a Ionic Hydrogel for Efficient and Scalable Moisture-Electric Generation
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|c 2022
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|a Text
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|a ƒaComputermedien
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|a ƒa Online-Ressource
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|a Date Revised 26.05.2022
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2022 The Authors. Advanced Materials published by Wiley-VCH GmbH.
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|a The progress of spontaneous energy generation from ubiquitous moisture is hindered the low output current and intermittent operating voltage of the moisture-electric generators. Herein a novel and efficient ionic hydrogel moisture-electric generator (IHMEG) is developed by rational combination of poly(vinyl alcohol), phytic acid, and glycerol-water binary solvent. Thanks to the synergistic effect of notable moisture-absorption capability and fast ion transport capability in the ionic hydrogel network, a single IHMEG unit of 0.25 cm2 can continuously generate direct-current electricity with a constant open-circuit voltage of ≈0.8 V for over 1000 h, a high short-current density of 0.24 mA cm-2 , and power density of up to 35 µW cm-2 . Of great importance is that large-scale integration of IHMEG units can be readily accomplished to offer a device with voltage up to 210 V, capable of directly driving numerous commercial electronics, including electronic ink screen, metal electrodeposition setup, and light-emitting-diode arrays. Such prominent performance is mainly attributed to the enhanced moisture-liberated proton diffusion proved by experimental observation and theoretical analysis. The ionic hydrogel with high cost-efficiency, easy-to-scaleup fabrication, and high power-output opens a brand-new perspective to develop a green, versatile, and efficient power source for Internet-of-Things and wearable electronics
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|a Journal Article
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|a direct-current electricity
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|a ionic hydrogels
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|a moisture
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|a wearable electronics
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|a Tao, Xiaoming
|e verfasserin
|4 aut
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|a Chen, Wei
|e verfasserin
|4 aut
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|a Mao, Jianfeng
|e verfasserin
|4 aut
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|a Luo, Heng
|e verfasserin
|4 aut
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|a Lin, Shuping
|e verfasserin
|4 aut
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|a Zhang, Lisha
|e verfasserin
|4 aut
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|a Hao, Jianhua
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g 34(2022), 21 vom: 01. Mai, Seite e2200693
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|g volume:34
|g year:2022
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|g pages:e2200693
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|u http://dx.doi.org/10.1002/adma.202200693
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