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  • Journal article
    Shirshova N, Bismarck A, Carreyette S, Fontana QPV, Greenhalgh ES, Jacobsson P, Johansson P, Marczewski MJ, Kalinka G, Kucernak ARJ, Scheers J, Shaffer MSP, Steinke JHG, Wienrich Met al., 2013,

    Structural supercapacitor electrolytes based on bicontinuous ionic liquid-epoxy resin systems

    , JOURNAL OF MATERIALS CHEMISTRY A, Vol: 1, Pages: 15300-15309, ISSN: 2050-7488
  • Conference paper
    Shirshova N, Bismarck A, Carreyette S, Greenhalgh ES, Johansson P, Marczewski MJ, Jacobsson P, Kalinka G, Shaffer MSP, Wienrich M, Steinke JHGet al., 2013,

    Correlations between mechanical properties and ionic conduction of structural electrolytes with bicontinuous morphologies

    , Pages: 72-79
  • Journal article
    Shirshova N, Qian H, Shaffer MSP, Steinke JHG, Greenhalgh ES, Curtis PT, Kucernak A, Bismarck Aet al., 2013,

    Structural composite supercapacitors

    , Composites Part A: Applied Science and Manufacturing, Vol: 46, Pages: 96-107, ISSN: 1359-835X

    This paper presents the development of multifunctional materials that perform a structural role whilst simultaneously storing electrical energy as a supercapacitor. Two structural carbon fibre woven electrodeswere separated by a woven glass fibre layer, and infused with a multifunctional polymer electrolyte. Following characterisation of electrochemical and compressive performance, working structural supercapacitor prototypes were demonstrated. Since the relative mechanical and electrical demands are application specific, an optimisation methodology is proposed. Multifunctional composites were achieved, which had compressive moduli of up to 39 GPa and capacitances of up to 52 mF g 1.

  • Journal article
    Bismarck A, Carreyette S, Fontana QPV, Greenhalgh ES, Jacobsson P, Johansson P, Marczewski MJ, Kalinka G, Kucernak A, Shaffer MS, Shirshova N, Steinke JHG, Wienrich Met al., 2012,

    Multifunctional epoxy resin for structural supercapacitors

    , ECCM 2012 - Composites at Venice, Proceedings of the 15th European Conference on Composite Materials

    Polymer-based electrolytes based on commercially available epoxy resins were prepared through the addition of a liquid electrolyte, a solution of a lithium salt in an ionic liquid. The polymer monoliths were characterized using impedance spectroscopy, 3-point bending test, scanning electron microscopy (SEM) and nitrogen adsorption (BET). The balance of ionic conductivity and flexural modulus is crucially dependent on the relative proportions of epoxy resin to electrolyte. Also the effect of the liquid electrolyte on curing kinetics and processing was assessed by complex viscosity measurements and differential scanning calorimetry (DSC). Only one out of the three resins investigated exhibited a significant acceleration effect.

  • Journal article
    Greenhalgh ES, 2012,

    Structural power composites for hybrid vehicles (storage)

    , ECCM 2012 - Composites at Venice, Proceedings of the 15th European Conference on Composite Materials

    Composite engineers have made considerable strides forward in the development of new constituents, architectures and processing routes, leading to an unprecedented ability to tailor and optimise the properties of the resulting composites. Recently there has been interest in developing multifunctional materials which exhibit duel, and distinctly different, capabilities. Structural power composites; multifunctional materials that carry mechanical loads whilst storing (and delivering) electrical energy, are the focus of this paper. The progress made by the STORAGE consortium, who have been using structural power materials for hybrid automotive applications, is presented. In particular, the progress made in the constituent development, the resulting composites, systems and demonstration is discussed.

  • Journal article
    Qian H, Diao HL, Houllé M, Amadou J, Shirshova N, Greenhalgh ES, Shaffer MSP, Bismarck Aet al., 2012,

    Carbon fibre modifications for composite structural power devices

    , ECCM 2012 - Composites at Venice, Proceedings of the 15th European Conference on Composite Materials

    This research project focuses on the development of new multifunctional composite materials, which allow energy storage functionality to be imbued upon low weight structural components. A crucial requirement for efficient structural energy storage composites is the development of structural carbon fibre electrode materials that possess high electrochemical surface area and stability whilst supporting high mechanical loads. In the present work, a variety of carbon fibre modifications were investigated, including chemical activation, carbon nanotube (CNT) sizing and CNT-grafting. The effects of these different modification methods on the fibre surface microstructure, electrochemical, and mechanical performance were studied and compared. In the most promising cases, up to a hundred-fold improvement in electrical storage capacity was achieved. Furthermore, single fibre tensile tests demonstrated that the intrinsically excellent mechanical properties of the carbon fibre were retained after the modifications.

  • Journal article
    Qian H, Kalinka G, Chan KLA, Kazarian SG, Greenhalgh ES, Bismarck A, Shaffer MSPet al., 2011,

    Mapping local microstructure and mechanical performance around carbon nanotube grafted silica fibres: Methodologies for hierarchical composites

    , NANOSCALE, Vol: 3, Pages: 4759-4767, ISSN: 2040-3364
  • Journal article
    Qian H, Greenhalgh ES, Shaffer MSP, Bismarck Aet al., 2010,

    Carbon nanotube-based hierarchical composites: a review

    , Journal of Materials Chemistry

    The introduction of carbon nanotubes (CNTs) into conventional fibre-reinforced polymer composites creates a hierarchical reinforcement structure and can significantly improve composite performance. This paper reviews the progress to date towards the creation of fibre reinforced (hierarchical) nanocomposites and assesses the potential for a new generation of advanced multifunctional materials. Two alternative strategies for forming CNT-based hierarchical composites are contrasted, the dispersion of CNTs into the composite matrix and their direct attachment onto the primary fibre surface. The implications of each approach for composite processing and performance are discussed, along with a summary of the measured improvements in the mechanical, electrical and thermal properties of the resulting hierarchical composites.

  • Conference paper
    Shirshova N, Greenhalgh ES, Shaffer M, Steinke J, Curtis P, Bismarck Aet al., 2009,

    Structured Multifunctional Composites for Power Storage Devices

    , 17th International Conference on Composite Materials
  • Conference paper
    Shirshova N, Greenhalgh E, Shaffer M, Steinke JHG, Curtis P, Bismarck Aet al., 2009,

    Structured multifunctional composites for power storage devices

    We report the fabrication and performance of multifunctional composite materials for energy storage application. The electrochemical and mechanical properties of the obtained composites were systematically studied.

  • Conference paper
    Shirshova N, Shaffer M, Steinke JHG, Greenhalgh E, Curtis P, Bismarck Aet al., 2007,

    Structural Polymer Composites for Energy Storage Devices

    , International Conference on Advanced Capacitors (ICAC2007)
  • Conference paper
    Shirshova N, Shaffer M, Steinke JHG, Greenhalgh E, Curtis P, Bismarck Aet al., 2007,

    Strutural Polymer Composites for Energy Storage Devices

    , 1st Chemical and Biomedical Engineering Symposium
  • Patent
    Chen GZ, Fray DJ, Hughes M, Shaffer MSP, Windle AHet al., 2001,

    Conducting polymer-carbon nanotube composite materials and their use in energy storage devices

    , 2003077515

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