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The Composite Supercapacitor

Lekakou, C, Fields, R, Lei, C and Markoulidis, F (2016) The Composite Supercapacitor Energy Technology, 4 (4). pp. 517-525.

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Inspired by the design of composite materials, we propose a new composite supercapacitor that comprises an integrated cell with high-power- and high-energy-related electrode materials. The composite electrochemical double-layer capacitor (EDLC) is the equivalent circuit of a high-power EDLC of power P1 and energy E1 and a high-energy EDLC of power P2 and energy E2 connected in parallel. A methodology is proposed and validated in this study for the design of an application-specific composite supercapacitor of power P and energy E with P1/E1>P/E>P2/E2. The methodology was tested successfully in medium- and large-sized application-specific composite supercapacitors, which were fabricated in the form of pouch cells using an organic electrolyte. The application-specific composite supercapacitors offered weight reductions of 40–60 % compared with supercapacitors based on the high-power- or on high-energy-related electrode materials only.

Item Type: Article
Subjects : Mechanical engineering
Divisions : Faculty of Engineering and Physical Sciences > Mechanical Engineering Sciences
Authors :
Lekakou, C
Fields, R
Lei, C
Markoulidis, F
Date : 9 February 2016
DOI : 10.1002/ente.201500328
Copyright Disclaimer : © 2016 Wiley-VCH The definitive version is available at
Depositing User : Symplectic Elements
Date Deposited : 28 Jun 2016 10:57
Last Modified : 28 Jun 2016 10:57

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