Three dimensional (3D) printed electrodes for interdigitated supercapacitors

Zhao, Chen; Wang, Caiyun; Gorkin, Robert; Beirne, Stephen; Shu, Kewei; Wallace, Gordon G.

doi:10.1016/j.elecom.2014.01.013

Cited by 182 publications

(128 citation statements)

References 22 publications

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“…image confirmed a coherent PPy film with a cauliflower morphology composed of large nodules as previously described [27,28]. The CV curves of the yarn supercapacitor retained a nearly rectangular shape at scan rates up to 50 mV s -1 (Fig.…”

Section: Resultssupporting

confidence: 63%

“…As the scan rate reached 100 mV s -1 , the CV curve became distorted. This can be explained by the slower inclusion/ejection and diffusion of counter ions compared to the electron transfer in PPy at high scan rates [27,28]. Consequently, the length specific capacitance of the yarn supercapacitor decreased with an increase in scan rate as presented in Fig 2b. The length specific capacitances were calculated to be 0.…”

Section: Resultsmentioning

confidence: 80%

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3D braided yarns to create electrochemical cells

Zhao

Farajikhah

Wang

et al. 2015

Electrochemistry Communications

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The demands for new configurations of electrochemical cells continue to grow and novel approaches are being enabled by the advent of new electromaterials and novel fabrication strategies. Wearable energy storage devices that can be seamlessly integrated into garments are a critical component of the wearable electronics genre. Recently, flexible yarn supercapacitors have attracted significant attention due to their ability to be integrated into fabrics, or stitched into existing textiles. Large-scale production of yarn supercapacitors using conventional manufacturing processes, however, is still a challenge. Here, we introduce the use of braiding technology to achieve a predetermined arrangement of fibre electrodes, the basis of a mass fabrication protocol to produce specific electrochemical cells: wearable supercapacitors. The resultant supercapacitors show a high capacitance of 1.71 mF cm-1. The structure is highly flexible with a 25% capacitance loss recorded after 1000 bending cycles. This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. Fax: +61 2 42981499 E-mail: foroughi@uow.edu.au # These authors contributed equally in this paper. A C C E P T E D M A N U S C R I P T A C C E P T E D M A N U S C R I P T ACCEPTED MANUSCRIPT 2 AbstractThe demands for new configurations of electrochemical cells continues to grow and novel approaches are being enabled by the advent of new electromaterials and novel fabrication strategies. Wearable energy storage devices that can be seamlessly integrated into garments are a critical component of the wearable electronics genre. Recently, flexible yarn supercapacitors have attracted significant attention due to their ability to be integrated into fabrics, or stitched into existing textiles. Large-scale production of yarn supercapacitors using conventional manufacturing processes, however, is still a challenge.Here, we introduce the use of braiding technology to achieve a predetermined arrangement of fibre electrodes, the basis of a mass fabrication protocol to produce specific electrochemical cells: wearable supercapacitors. The resultant supercapacitors show a high capacitance of 1.71 mF cm -1 . The structure is highly flexible with a 25% capacitance loss recorded after 1000 bending cycles.

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Section: Resultssupporting

confidence: 63%

Section: Resultsmentioning

confidence: 80%

3D braided yarns to create electrochemical cells

Zhao

Farajikhah

Wang

et al. 2015

Electrochemistry Communications

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“…The repeated redox cycles can damage PPy molecule structure and promote PPy degradation, leading to the capacitance decay. It should be pointed out that these rGO-PPy hybrid papers can still retain 71-80 % of the initial capacitance after 5000 cycles, comparable to or higher than that 56~87% retention of the previously reported results for PPy or carbon-PPy based electrodes [48][49][50][51].…”

Section: Resultsmentioning

confidence: 66%

A Free-standing Graphene-Polypyrrole Hybrid Paper via Electropolymerization with an Enhanced Areal Capacitance

Shu

Wang

Zhao

et al. 2016

Electrochimica Acta

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Here we developed a free-standing reduced graphene oxide (rGO)-polypyrrole (PPy) hybrid paper via electropolymerization on a paper-like graphene gel. This flexible hybrid paper displayed a uniform layered structure with PPy coated onto the graphene layers. A high areal mass of 2.7 mg cm−2 could be obtained. It delivered a greatly enhanced areal capacitance of 440 mF cm−2 at 0.5 A g−1, in contrast to that 151∼198.5 mF cm−2 previously reported for graphene paper or polypyrrole-graphene paper. It can retain ∼81% of the initial capacitance at a high current density of 6 A g−1. The combined high flexibility with outstanding electrochemical performance, makes such novel hybrid paper a promising electrode for flexible supercapacitors. Disciplines Engineering | Physical Sciences and Mathematics Publication DetailsShu, K., Wang, C., Zhao, C., Ge, Y. & Wallace, G. G. (2016). A free-standing graphene-polypyrrole hybrid paper via electropolymerization with an enhanced areal capacitance. Electrochimica Acta, 212 561-571. AbstractHere we developed a free-standing reduced graphene oxide (rGO)-polypyrrole (PPy) hybrid paper via electropolymerization on a paper-like graphene gel. This flexible hybrid paper displayed a uniform layered structure with PPy coated onto the graphene layers. A high areal mass of 2.7 mg cm -2 could be obtained. It delivered a greatly enhanced areal capacitance of 440 mF cm -2 at 0.5 A g -1 , in contrast to that 151~198.5 mF cm -2 previously reported for graphene paper or polypyrrole-graphene paper. It can retain ~81% of the initial capacitance at a high current density of 6 A g -1 . The combined high flexibility with outstanding electrochemical performance, makes such novel hybrid paper a promising electrode for flexible supercapacitors.

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“…The 3D-IMA was comprised of Li4Ti5O12 (LTO) and LiFePO4 (LFP) applied as anode and cathode material respectively. In addition, Zhao et al [17] presented a 3D printed electrode for fabricating interdigitated supercapacitors using Selective Laser Melting (SLM).…”

Section: Introductionmentioning

confidence: 99%

A manufacturing process for an energy storage device using 3D printing

Tanwilaisiri

Zhang

et al. 2016

2016 IEEE International Conference on Industrial Technology (ICIT)

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Abstract-3D printing has been widely applied in the development of prototypes. The main advantage of this process is that the objects or products can be viewed in three dimensions on a computer display and a 3D sample can be created before committing to a large production run. There are various 3D printing technologies that are capable of manufacturing metal, ceramic, plastic substrate and paste objects. Recently several research groups have focused on the fabrication freedom of 3D printing for different purposes including freeform manufacturing of electrochemical devices but this use is still limited. This paper describes a manufacturing process for electrochemical supercapacitors using the combination of the two techniques of 3D printing which are Fused Deposition Modelling (FDM) and a Paste Extrusion system. The method relies on creating a frame for the energy storage device, i.e. supercapacitor, by the FDM 3D printer and then depositing the conductive layers and electrodes of the supercapacitor using Paste Extrusion system. A 3D supercapacitor has been made and evaluated in this study.

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Three dimensional (3D) printed electrodes for interdigitated supercapacitors

Cited by 182 publications

References 22 publications

3D braided yarns to create electrochemical cells

3D braided yarns to create electrochemical cells

A Free-standing Graphene-Polypyrrole Hybrid Paper via Electropolymerization with an Enhanced Areal Capacitance

A manufacturing process for an energy storage device using 3D printing

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