Biocompatible and Flexible Hydrogel Diode-Based Mechanical Energy Harvesting

Yue Zhou, Ying Hou, Qi Li, Lu Yang, Ye Cao, Kyoung Hwan Choi, Qing Wang, Qiming Zhang

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Energy harvesting devices which convert low frequency mechanical energy sources such as human motions and ocean waves into electricity are attractive for powering portable devices and for green-energy generation. To date the state-of-the-art mechanical energy harvesting devices can only work efficiently at high vibration frequencies. Here, a biocompatible and flexible mechanical energy harvesting device is reported utilizing ionic diode as the transducer. This device utilizes the redistribution of cations and anions at the two hydrogel electrodes under stress to convert mechanical energy to electricity. It is shown that the device can be operated at low frequencies with high output current, e.g., 13.5 µA cm−2, owing to the high ion concentration and unique working mechanism of the device. Moreover, the output current density and power density can be improved further by employing a multilayer configuration. By stacking five units with parallel structure, the hydrogel diode device can generate an output current of 64.3 µA cm−2 and power density of 0.48 µW cm−2. Considering the very high electric energy density of ionic devices, the hydrogel energy harvesting device demonstrated herein paves a way for efficient mechanical energy harvesting from many common low frequency sources.

Original languageEnglish (US)
Article number1700118
JournalAdvanced Materials Technologies
Volume2
Issue number9
DOIs
StatePublished - Jan 1 2017

Fingerprint

Energy harvesting
Hydrogel
Hydrogels
Diodes
Electricity
Water waves
Anions
Cations
Transducers
Multilayers
Current density
Negative ions
Positive ions
Ions
Electrodes

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Mechanics of Materials
  • Industrial and Manufacturing Engineering

Cite this

Zhou, Yue ; Hou, Ying ; Li, Qi ; Yang, Lu ; Cao, Ye ; Choi, Kyoung Hwan ; Wang, Qing ; Zhang, Qiming. / Biocompatible and Flexible Hydrogel Diode-Based Mechanical Energy Harvesting. In: Advanced Materials Technologies. 2017 ; Vol. 2, No. 9.
@article{84bc9365824148a2ae9ba7e0ef036a1a,
title = "Biocompatible and Flexible Hydrogel Diode-Based Mechanical Energy Harvesting",
abstract = "Energy harvesting devices which convert low frequency mechanical energy sources such as human motions and ocean waves into electricity are attractive for powering portable devices and for green-energy generation. To date the state-of-the-art mechanical energy harvesting devices can only work efficiently at high vibration frequencies. Here, a biocompatible and flexible mechanical energy harvesting device is reported utilizing ionic diode as the transducer. This device utilizes the redistribution of cations and anions at the two hydrogel electrodes under stress to convert mechanical energy to electricity. It is shown that the device can be operated at low frequencies with high output current, e.g., 13.5 µA cm−2, owing to the high ion concentration and unique working mechanism of the device. Moreover, the output current density and power density can be improved further by employing a multilayer configuration. By stacking five units with parallel structure, the hydrogel diode device can generate an output current of 64.3 µA cm−2 and power density of 0.48 µW cm−2. Considering the very high electric energy density of ionic devices, the hydrogel energy harvesting device demonstrated herein paves a way for efficient mechanical energy harvesting from many common low frequency sources.",
author = "Yue Zhou and Ying Hou and Qi Li and Lu Yang and Ye Cao and Choi, {Kyoung Hwan} and Qing Wang and Qiming Zhang",
year = "2017",
month = "1",
day = "1",
doi = "10.1002/admt.201700118",
language = "English (US)",
volume = "2",
journal = "Advanced Materials Technologies",
issn = "2365-709X",
publisher = "Wiley-Blackwell",
number = "9",

}

Biocompatible and Flexible Hydrogel Diode-Based Mechanical Energy Harvesting. / Zhou, Yue; Hou, Ying; Li, Qi; Yang, Lu; Cao, Ye; Choi, Kyoung Hwan; Wang, Qing; Zhang, Qiming.

In: Advanced Materials Technologies, Vol. 2, No. 9, 1700118, 01.01.2017.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Biocompatible and Flexible Hydrogel Diode-Based Mechanical Energy Harvesting

AU - Zhou, Yue

AU - Hou, Ying

AU - Li, Qi

AU - Yang, Lu

AU - Cao, Ye

AU - Choi, Kyoung Hwan

AU - Wang, Qing

AU - Zhang, Qiming

PY - 2017/1/1

Y1 - 2017/1/1

N2 - Energy harvesting devices which convert low frequency mechanical energy sources such as human motions and ocean waves into electricity are attractive for powering portable devices and for green-energy generation. To date the state-of-the-art mechanical energy harvesting devices can only work efficiently at high vibration frequencies. Here, a biocompatible and flexible mechanical energy harvesting device is reported utilizing ionic diode as the transducer. This device utilizes the redistribution of cations and anions at the two hydrogel electrodes under stress to convert mechanical energy to electricity. It is shown that the device can be operated at low frequencies with high output current, e.g., 13.5 µA cm−2, owing to the high ion concentration and unique working mechanism of the device. Moreover, the output current density and power density can be improved further by employing a multilayer configuration. By stacking five units with parallel structure, the hydrogel diode device can generate an output current of 64.3 µA cm−2 and power density of 0.48 µW cm−2. Considering the very high electric energy density of ionic devices, the hydrogel energy harvesting device demonstrated herein paves a way for efficient mechanical energy harvesting from many common low frequency sources.

AB - Energy harvesting devices which convert low frequency mechanical energy sources such as human motions and ocean waves into electricity are attractive for powering portable devices and for green-energy generation. To date the state-of-the-art mechanical energy harvesting devices can only work efficiently at high vibration frequencies. Here, a biocompatible and flexible mechanical energy harvesting device is reported utilizing ionic diode as the transducer. This device utilizes the redistribution of cations and anions at the two hydrogel electrodes under stress to convert mechanical energy to electricity. It is shown that the device can be operated at low frequencies with high output current, e.g., 13.5 µA cm−2, owing to the high ion concentration and unique working mechanism of the device. Moreover, the output current density and power density can be improved further by employing a multilayer configuration. By stacking five units with parallel structure, the hydrogel diode device can generate an output current of 64.3 µA cm−2 and power density of 0.48 µW cm−2. Considering the very high electric energy density of ionic devices, the hydrogel energy harvesting device demonstrated herein paves a way for efficient mechanical energy harvesting from many common low frequency sources.

UR - http://www.scopus.com/inward/record.url?scp=85038246833&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85038246833&partnerID=8YFLogxK

U2 - 10.1002/admt.201700118

DO - 10.1002/admt.201700118

M3 - Article

AN - SCOPUS:85038246833

VL - 2

JO - Advanced Materials Technologies

JF - Advanced Materials Technologies

SN - 2365-709X

IS - 9

M1 - 1700118

ER -