Challenge of creating high performance dielectric elastomers

Chiba, Seiki; Waki, Mikio; Ono, Kôji; Hatano, Ryu; Taniyama, Yoshihiro; Tanaka, Shoma; Okada, Eisuke; Ohyama, Kazuhiro

doi:10.1117/12.2581255

Cited by 11 publications

(13 citation statements)

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“…The energy density of a DE reaches 3.4 J/g, which is about 21 times that of single crystal piezoelectric elements and more than two orders of magnitude higher than most commercially available actuators [9,10]. As shown in Figure 2, a 0.15 g DE can lift an 8 kg weight by 1 mm or more at a speed of 88 mc for our latest design [11]. Also, for deformation, as shown in Figure 3, it reached 680% up to now [12].…”

Section: Background Of Dielectric Elastomersmentioning

confidence: 91%

The Possibility of a High-efficiency Wave Power Generation System using Dielectric Elastomers

Chiba¹,

Waki²,

Jiang³

et al. 2021

Preprint

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Power generation using dielectric elastomer (DE) artificial muscle is attracting attention because of its light weight, low cost, and high efficiency. Since this method is a system that produces electricity without emitting carbon dioxide nor using rare earths, it would contribute to the goal of environmental sustainability. In this paper, the background of DEs, the associated high-efficient wave energy generation (WEG) systems that we developed using DEs, as well as the latest development of its material are summarized. By covering the challenges we face and the achievements that we’ve reached, we can discuss the opportunities to build the foundation of a recycled energy society through the usage of these WEGs. On the other hand, to make these possibilities commercially successful, the advantages of DEs need to be integrated with traditional technologies. To achieve this, we also consider the method of using DEs alone and a system used in combination with an oscillating water column. Finally, the current status and future of DEGs are discussed.

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Section: Background Of Dielectric Elastomersmentioning

confidence: 91%

The Possibility of a High-efficiency Wave Power Generation System using Dielectric Elastomers

Chiba¹,

Waki²,

Jiang³

et al. 2021

Preprint

Self Cite

View full text Add to dashboard Cite

show abstract

“…The energy density of a DE reaches 3.4 J/g, which is about 21 times that of single crystal piezoelectric elements and more than two orders of magnitude higher than most commercially available actuators [9,10]. As shown in Figure 2, a 0.15 g DE can lift an 8 kg weight by 1 mm or more at a speed of 88 mc with our latest design [11]. However, the edge of the DE was reinforced so that it would not be destroyed by repeated loads, and the total weight was set to 0.97 g. Also, for deformation, as shown in Figure 3, it has reached 680% so far [12].…”

Section: Background Of Dielectric Elastomersmentioning

confidence: 92%

“…The following are relevant papers on DE materials and mechanical systems using DEs: Chiba et al made DEs from silicon and acrylic, and discovered that acrylic has greater elongation and actuation pressure [6]. Chiba et al have also shown the effectiveness of carbon nanotubes as an electrode for DEs [11]. Koh et al showed that various models of failure, including electrical breakdown, electromechanical instability, loss of tension, and rupture by stretching defined a cycle of maximal energy of conversion [13].…”

Section: Background Of Dielectric Elastomersmentioning

confidence: 99%

The Possibility of a High-Efficiency Wave Power Generation System Using Dielectric Elastomers

Chiba

Waki²,

Jiang

et al. 2021

Energies

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Power generation using dielectric elastomer (DE) artificial muscle is attracting attention because of its light weight, low cost, and high-efficiency. Since this method is a system that produces electricity without emitting carbon dioxide nor using rare earths, it would contribute to the goal of environmental sustainability. In this paper, the background of DEs, the associated high efficiency wave energy generation (WEG) systems that we developed using DEs, as well as the latest development of its material are summarized. By covering both the challenges and achievements, this paper discusses the opportunities to build the foundation of an energy recycling society through the usage of these WEGs. To make these possibilities commercially successful, the advantages of DEs need to be integrated with traditional technologies. To achieve this, the method of using DEs alone and a system used in combination with an oscillating water column were also considered. Finally, the current status and future of DE generators (DEGs) are discussed.

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“…At the material level, a DE actuator has a fast response speed (over 100 kHz), with a high strain rate (up to 680%) [15], high pressure (up to 8 MPa), and power density of 1 W/g [16]. A DE actuator having only 0.15 g of DE can lift the weight of 8 kg easily by 1 mm or more with the actuation speed of 88 msec, using Single-wall carbon nanotubes as electrodes [17]. Since the elongation and the output are in inverse proportion to each other, it is possible to suppress the output and increase the elongation.…”

Section: Background Of Desmentioning

confidence: 99%

Perspective Chapter: Improvement of Elastomer Elongation and Output for Dielectric Elastomers

Chiba¹,

Waki²,

Zhu³

et al. 2023

Elasticity of Materials

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The need for light, high-strength, and artificial muscles is growing rapidly. A well-known type of artificial muscle meeting these requirements is the dielectric elastic (DE) type, which uses electrostatic force between electrodes. In hopes of utilizing, it practically for a variety of purposes, research and development is rapidly progressing all over the world as a technology for practical use. Much of the market demand is dominated by more output-focused applications such as DE power suits, DE motors, DE muscles for robots, and larger DE power systems. To meet these demands, the elasticity of the elastomer is very important. In this paper, we discussed what the important factors are for SS curves, viscoelasticity tests, etc. of the dielectric elastomer materials. Recent attempts have been also made to use new carbon foam materials such as SWCNTs and MWCNTs as electrodes for DEs. These electrodes bring the elastomers to a higher level of performance.

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Challenge of creating high performance dielectric elastomers

Cited by 11 publications

References 0 publications

The Possibility of a High-efficiency Wave Power Generation System using Dielectric Elastomers

The Possibility of a High-efficiency Wave Power Generation System using Dielectric Elastomers

The Possibility of a High-Efficiency Wave Power Generation System Using Dielectric Elastomers

Perspective Chapter: Improvement of Elastomer Elongation and Output for Dielectric Elastomers

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