Power and Propulsion | High energy supercapacitor development - RMCRC
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11 Jun Power and Propulsion | High energy supercapacitor development

Posted at 02:05h in Power, Projects by
Power and Propulsion

High energy supercapacitor development

CRRC QINGDAO SIFANG ROLLING STOCK RESEARCH INSTITUTE CO.,LTD (Qin Ruijie) / CSIRO (Graeme Snook)

High energy supercapacitor development

Research summary

This project investigated the use of supercapacitors as a high-power energy storage device to power light rail. Following on from the Supercapacitor Energy Management System project, this work focused on developing high energy supercapacitors with new design and chemistry.

Start/end date

1 April 2015 to 31 March 2019

Total contracted budget (including in-kind)

$3,584,852

Key achievements

  • The development of high power, high energy supercapacitors with high cycle life required careful consideration of the fast charge catenary-free application, due to the inevitable trade-off between high power density, high energy density and cycle life.
  • The resulting device met target parameters with a novel anode and cathode configuration. Further work was proposed by CSIRO to reduce the internal resistance of the cell – a parameter which is required to reduce heating of the cell during charging and discharging.
  • As part of this project, a CRRC employee completed a PhD at Queensland University of Technology with supervision from both QUT and CSIRO. The PhD successfully studied Lithium Metal Phosphates and the mechanism of electronic conductivity.

Publications

Zhang, Y., Alarco, J., Best, A., Snook, G., Talbot, P. and Nerkar, J. (2019). Re-evaluation of experimental measurements for the validation of electronic band structure calculations for LiFePO 4 and FePO 4. RSC Advances 9, 1134-1146.

Zhang, Y., Alarco, J., Nerkar, J., Best, A., Snook, G. and Talbot, P. (2019). Improving the rate capability of LiFePO4 electrode by controlling particle size distribution. Journal of the Electrochemical Society 166, A4128-A4135.

Zhang, Y., Alarco, J., Nerkar, J., Best, A., Snook, G. and Talbot, P. (2020). Nanoscale characteristics of practical LiFePO4 materials – Effects on electrical, magnetic and electrochemical properties. Materials Characterization 162, 110171.

Zhang, Y., Alarco, J., Nerkar, J., Best, A., Snook, G., Talbot, P. and Cowie, B. (2020). Spectroscopic Evidence of Surface Li-Depletion of Lithium Transition-Metal Phosphates. ACS Applied Energy Materials 3, 2856-2866.

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