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Development and evaluation of a composite supercapacitor-based 12 V transient start-stop (TSS) power system for vehicles: modelling, design and fabrication scaling up

Lei, Chunhong, Fields, Richard, Wilson, Peter, Lekakou, Constantina, Amini, Negar, Tennison, Stephen, Perry, John, Gosso, Michele and Martorana, Brunetto (2020) Development and evaluation of a composite supercapacitor-based 12 V transient start-stop (TSS) power system for vehicles: modelling, design and fabrication scaling up Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy.

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Abstract

The study involves a bottom-up approach, from bottom cells to large supercapacitor pouch cells, encompassing the design, modelling and fabrication stages of the cells leading to a 12 V transient start-stop (TSS) power system for automotive applications. More specifically, the design of a large composite supercapacitor is presented, consisting of a high power density component and a high energy density component, hybridised at material level. The composition of the composite supercapacitor is optimised to be application-specific so that it satisfies a specified energy-to-maximum power ratio for the 12 V TSS system. The testing of the large composite supercapacitor pouch cells and the 12 V TSS system proves the validity of the bottom-up approach, validates the design and the proposed electric circuit model and its parameters, fitted according to experimental data of small laboratory cells and applied successfully to the large cells, and proves the high quality of the scaled up fabrication processes. The 12 V TSS power system of seven large composite supercapacitor cells satisfies the set criteria of energy and maximum power for the specified duration, 15 Wh and 4.2 kW respectively, at a total mass of 3.94 kg, below the original set limit of 5 kg.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Mechanical Engineering Sciences
Authors :
NameEmailORCID
Lei, Chunhong
Fields, Richardr.p.fields@surrey.ac.uk
Wilson, Peter
Lekakou, ConstantinaC.Lekakou@surrey.ac.uk
Amini, Negar
Tennison, Stephens.tennison@surrey.ac.uk
Perry, John
Gosso, Michele
Martorana, Brunetto
Date : 4 May 2020
Funders : European Union Seventh Framework Programme
Grant Title : AUTOSUPERCAP
Copyright Disclaimer : © The Author(s) 2020
Uncontrolled Keywords : Composite supercapacitor; Power system; Model; Design; Scaling up; Automotive application
Related URLs :
Depositing User : Clive Harris
Date Deposited : 09 Jun 2020 17:57
Last Modified : 09 Jun 2020 17:57
URI: http://epubs.surrey.ac.uk/id/eprint/857131

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