Dielectric capacitors with three-dimensional nanoscale interdigital electrodes for energy storage

Han, Fangming; Meng, Guowen; Zhou, Fei; Li, Song; Li, Xinhua; Hu, Xiaoye; Zhu, Xiaoguang; Wu, Bing; Wei, Bingqing

doi:10.1126/sciadv.1500605

Cited by 59 publications

(32 citation statements)

References 32 publications

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“…Following this idea, each nanorod or nanoplate electrodes distributed and interdigitated along the longitude direction with solid electrolyte filling between them can be designed (Figure A,B). This design approach ensures the full utilization of device volume while greatly shortening the electron/ion diffusion length . If developing a step further, the solid electrolyte can be conformally deposited on the electrodes leaving more room to load counter electrode materials by forming the concentric nanopores or aperiodic “sponge” configuration (Figure C,D) .…”

Section: Summary and Perspectivesmentioning

confidence: 99%

“…This design approach ensures the full utilization of device volume while greatly shortening the electron/ion diffusion length. 86 If developing a step further, the solid electrolyte can be conformally deposited on the electrodes leaving more room to load counter electrode materials by forming the concentric nanopores or aperiodic "sponge" configuration ( Figure 4C,D). [87][88][89] In these 3D architecture blueprints, the volume of electrolyte utilized is further reduced, leading to the enhanced volumetric/areal energy density.…”

Section: Summary and Perspectivesmentioning

confidence: 99%

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Advances on three‐dimensional electrodes for micro‐supercapacitors: A mini‐review

Liu

Zhao

Lei

2019

InfoMat

141

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Owing to the high power density, long cycle life and maintain‐free, micro‐supercapacitors (MSCs) stand out as preferred miniaturized energy source for the miscellaneous autonomous electronic components. However, the shortage of energy density is the main stumbling block for their practical applications. To solve this energy issue, constructing a three‐dimensional (3D) electrode within the limited footprint area is proposed as a new solution for improving the energy storage capacity of MSCs. In the last few years, extensive efforts have been devoted to developing 3D electrodes for MSCs, and significant progress and breakthrough have been achieved. While, there is still lack of systematic summary on the 3D electrode design strategies. To this end, it is imperative to outline the basic design conception, summarize the current states, and discuss the future research about 3D electrodes in MSCs based on the latest development.

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Section: Summary and Perspectivesmentioning

confidence: 99%

Section: Summary and Perspectivesmentioning

confidence: 99%

Advances on three‐dimensional electrodes for micro‐supercapacitors: A mini‐review

Liu

Zhao

Lei

2019

InfoMat

141

View full text Add to dashboard Cite

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“…Recent reports highlight new functional oxides with nanostructures, including CoO x /graphene, V 2 O 5 , Zn x Co 1−x O and Cu-Fe 3 O 4 , by means of combined preparation methodologies of chemical vapor deposition (CVD), electrochemical deposition and sol-gel [2][3][4][5]. However, metallic electrodes possessing three-dimensional (3D) nanostructures have rarely been investigated except for carbon nanotubes (CNTs) by CVD [6][7][8]. Metallic nanoelectrodes could serve as an ideal current collector in flexible integrated energy systems.…”

Section: Introductionmentioning

confidence: 99%

Flexible 3D Electrodes of Free-Standing TiN Nanotube Arrays Grown by Atomic Layer Deposition with a Ti Interlayer as an Adhesion Promoter

et al. 2020

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Nanostructured electrodes and their flexible integrated systems have great potential for many applications, including electrochemical energy storage, electrocatalysis and solid-state memory devices, given their ability to improve faradaic reaction sites by large surface area. Although many processing techniques have been employed to fabricate nanostructured electrodes onto flexible substrates, these present limitations in terms of achieving flexible electrodes with high mechanical stability. In this study, the adhesion, mechanical properties and flexibility of TiN nanotube arrays on a Pt substrate were improved using a Ti interlayer. Highly ordered and well-aligned TiN nanotube arrays were fabricated on a Pt substrate using a template-assisted method with an anodic aluminum oxide (AAO) template and atomic layer deposition (ALD) system. We show that with the use of a Ti interlayer between the TiN nanotube arrays and Pt substrate, the TiN nanotube arrays could perfectly attach to the Pt substrate without delamination and faceted phenomena. Furthermore, the I-V curve measurements confirmed that the electric contact between the TiN nanotube arrays and substrate for use as an electrode was excellent, and its flexibility was also good for use in flexible electronic devices. Future efforts will be directed toward the fabrication of embedded electrodes in flexible plastic substrates by employing the concepts demonstrated in this study.

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“…This type of device is called a super-electrostatic nanostructured capacitor (super-ENC) [7]. The use of nanoporous anodic alumina membranes (NAAMs) as a patterned support for the manufacture of super-ENCs that is proposed in this work is a widely contrasted technique that offers good results not only for the manufacturing of electrostatic capacitors [8], but also for other types of energy storage devices [9,10].…”

Section: Introductionmentioning

confidence: 99%

Electrostatic Supercapacitors by Atomic Layer Deposition on Nanoporous Anodic Alumina Templates for Environmentally Sustainable Energy Storage

et al. 2018

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In this work, the entire manufacturing process of electrostatic supercapacitors using the atomic layer deposition (ALD) technique combined with the employment of nanoporous anodic alumina templates as starting substrates is reported. The structure of a usual electrostatic capacitor, which comprises a top conductor electrode/the insulating dielectric layer/and bottom conductor electrode (C/D/C), has been reduced to nanoscale size by depositing layer by layer the required materials over patterned nanoporous anodic alumina membranes (NAAMs) by employing the ALD technique. A thin layer of aluminum-doped zinc oxide, with 3 nm in thickness, is used as both the top and bottom electrodes’ material. Two dielectric materials were tested; on the one hand, a triple-layer made by a successive combination of 3 nm each layers of silicon dioxide/titanium dioxide/silicon dioxide and on the other hand, a simple layer of alumina, both with 9 nm in total thickness. The electrical properties of these capacitors are studied, such as the impedance and capacitance dependences on the AC frequency regime (up to 10 MHz) or capacitance (180 nF/cm2) on the DC regime. High breakdown voltage values of 60 V along with low leakage currents (0.4 μA/cm2) are also measured from DC charge/discharge RC circuits to determine the main features of the capacitors behavior integrated in a real circuit.

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Dielectric capacitors with three-dimensional nanoscale interdigital electrodes for energy storage

Abstract: Three-dimensional nanoarchitectural design of electrodes to simultaneously boost capacitance and breakdown voltage of dielectric capacitors.

Cited by 59 publications

References 32 publications

Advances on three‐dimensional electrodes for micro‐supercapacitors: A mini‐review

Advances on three‐dimensional electrodes for micro‐supercapacitors: A mini‐review

Flexible 3D Electrodes of Free-Standing TiN Nanotube Arrays Grown by Atomic Layer Deposition with a Ti Interlayer as an Adhesion Promoter

Electrostatic Supercapacitors by Atomic Layer Deposition on Nanoporous Anodic Alumina Templates for Environmentally Sustainable Energy Storage

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