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Experimental analysis of Hybridised Energy Storage Systems for automotive applications

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Title: Experimental analysis of Hybridised Energy Storage Systems for automotive applications
Authors: Sarwar, W
Engstrom, T
Marinescu, M
Green, N
Taylor, N
Offer, GJ
Item Type: Journal Article
Abstract: The requirements of the Energy Storage System (ESS) for an electrified vehicle portfolio consisting of a range of vehicles from micro Hybrid Electric Vehicle (mHEV) to a Battery Electric Vehicle (BEV) vary considerably. To reduce development cost of an electrified powertrain portfolio, a modular system would ideally be scaled across each vehicle; however, the conflicting requirements of a mHEV and BEV prevent this. This study investigates whether it is possible to combine supercapacitors suitable for an mHEV with high-energy batteries suitable for use in a BEV to create a Hybridised Energy Storage System (HESS) suitable for use in a HEV. A passive HESS is found to be capable of meeting the electrical demands of a HEV drive cycle; the operating principles of HESSs are discussed and factors limiting system performance are explored. The performance of the HESS is found to be significantly less temperature dependent than battery-only systems, however the heat generated suggests a requirement for thermal management. As the HESS degrades (at a similar rate to a specialised high-power-battery), battery resistance rises faster than supercapacitor resistance; as a result, the supercapacitor provides a greater current contribution, therefore the energy throughput, temperature rise and degradation of the batteries is reduced.
Issue Date: 30-Aug-2016
Date of Acceptance: 23-May-2016
URI: http://hdl.handle.net/10044/1/33182
DOI: 10.1016/j.jpowsour.2016.05.114
ISSN: 0378-7753
Publisher: Elsevier
Start Page: 388
End Page: 401
Journal / Book Title: Journal of Power Sources
Volume: 324
Issue: 1
Copyright Statement: © 2016, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/
Sponsor/Funder: Jaguar Land Rover Limited
Innovate UK
Engineering & Physical Science Research Council (EPSRC)
Engineering & Physical Science Research Council (EPSRC)
Funder's Grant Number: See further information
KTP009095
EP/I00422X/1
EP/I00422X/1
Keywords: Science & Technology
Physical Sciences
Technology
Chemistry, Physical
Electrochemistry
Energy & Fuels
Materials Science, Multidisciplinary
Chemistry
Materials Science
Hybridised Energy Storage
Lithium battery
Supercapacitor
Automotive
Degradation
Passive
BATTERY-ULTRACAPACITOR HYBRIDS
FUEL-CELL
ELECTRIC VEHICLES
POWER
DESIGN
PERFORMANCE
SUPERCAPACITOR
OPTIMIZATION
ARCHITECTURE
EFFICIENCY
Energy
03 Chemical Sciences
09 Engineering
Publication Status: Published
Online Publication Date: 2016-05-30
Appears in Collections:Mechanical Engineering
Faculty of Engineering