Carbon coated textiles for flexible energy storage

Jost, Kristy; Pérez, Carlos R.; McDonough, John K.; Presser, Volker; Heon, Min; Dion, Geneviève; Gogotsi, Yury

doi:10.1039/c1ee02421c

Cited by 508 publications

(358 citation statements)

References 29 publications

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“…Flexible supercapacitors have been developed previously to maintain mechanical integrity during packaging, 11 and for integration with smart textiles. 12 The goal, here, is to develop strong, stiff, multifunctional supercapacitors, capable of full structural function, ultimately akin to a normal fibrereinforced polymer composites.…”

Section: Introductionmentioning

confidence: 99%

Multifunctional Structural Supercapacitor Composites Based on Carbon Aerogel Modified High Performance Carbon Fiber Fabric

Qian

Kucernak

Greenhalgh

et al. 2013

ACS Appl. Mater. Interfaces

225

202

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Abstract:A novel multifunctional material has been designed to provide excellent mechanical properties whilst possessing a high electrochemical surface area suitable for electrochemical energy storage: structural carbon fibre fabrics are embedded in a continuous network of carbon aerogel (CAG) to form a coherent but porous monolith. The CAG-modification process was found to be scalable and to be compatible with a range of carbon fibre fabrics with different surface properties. The incorporation of CAG significantly increased the surface area of carbon fibre fabrics, and hence the electrochemical performance, by around 100-fold, resulting in a CAG-normalised specific electrode capacitance of around 62 Fg -1 , determined by cyclic voltammetry in an aqueous electrolyte. Using an ionic liquid (IL) electrolyte, the estimated energy density increased from 0.003 to 1 Whkg -1 , after introducing the CAG into the carbon fibre fabric. 'Proof-of-concept' multifunctional structural supercapacitor devices were fabricated using an IL-modified solid-state polymer electrolyte as a multifunctional matrix to provide both ionic transport and physical support for the primary fibres. Two CAG-impregnated carbon fabrics were sandwiched around an insulating separator to form a functioning structural electrochemical double layer capacitor composite.The CAG-modification not only improved the electrochemical surface area, but also reinforced the polymer matrix surrounding the primary fibres, leading to dramatic improvements in the matrix-dominated composite properties. Increases in in-plane shear strength and modulus, of up to 4.5-fold, were observed, demonstrating that CAG-modified structural carbon fibre fabrics have promise in both pure structural and multifunctional energy storage applications.3

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Section: Introductionmentioning

confidence: 99%

Multifunctional Structural Supercapacitor Composites Based on Carbon Aerogel Modified High Performance Carbon Fiber Fabric

Qian

Kucernak

Greenhalgh

et al. 2013

ACS Appl. Mater. Interfaces

225

202

View full text Add to dashboard Cite

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“…Strong, flexible yarn-based supercapacitors are attractive as power sources for miniaturized electronic devices [13][14][15][16] such as micro-robots, wearable electronic textiles and implantable medical devices, as they can have small volumes and could be easily integrated into variously shaped structures. However, technical challenges have limited the development of strong, flexible and weavable yarns and fibres having attractive supercapacitor performance.…”

mentioning

confidence: 99%

Ultrafast charge and discharge biscrolled yarn supercapacitors for textiles and microdevices

et al. 2013

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Flexible, wearable, implantable and easily reconfigurable supercapacitors delivering high energy and power densities are needed for electronic devices. Here we demonstrate weavable, sewable, knottable and braidable yarns that function as high performance electrodes of redox supercapacitors. A novel technology, gradient biscrolling, provides fastion-transport yarn in which hundreds of layers of conducting-polymer-infiltrated carbon nanotube sheet are scrolled into B20 mm diameter yarn. Plying the biscrolled yarn with a metal wire current collector increases power generation capabilities. The volumetric capacitance is high (up to B179 F cm À 3 ) and the discharge current of the plied yarn supercapacitor linearly increases with voltage scan rate up to B80 Vs À 1 and B20 Vs À 1 for liquid and solid electrolytes, respectively. The exceptionally high energy and power densities for the complete supercapacitor, and high cycle life that little depends on winding or sewing (92%, 99% after 10,000 cycles, respectively) are important for the applications in electronic textiles.

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“…Example of MEMS Energy harvester device [6] as carbon nanotubes or graphene that are revolutionizing the electronic world. Researchers have already shown that with NT it is possible to create thin film batteries Kuwata et al [28], Ogawa et al [44] printable on top of substrates, or creating a smart fibers that can store energy (so called E-textiles) Gu et al [18], Jost et al [25]. Furthermore, in the literature there are presented many demonstrators of energy harvesting devices that are able to "'harvest"' energy from many different physic sources (such as mechanical vibrations, temperature gradients, electro-magnetic radiations, etc) and transform it into electrical energy.…”

Section: Nanotechnologies For Energy Related Issuesmentioning

confidence: 99%