Project ABSOLUTE: A ZEBRA Battery/Intermediate Temperature Solid Oxide Fuel Cell Hybrid for Automotive Applications

[+] Author and Article Information
D. J. L. Brett1

Department of Chemical Engineering, Imperial College London, London SW7 2AZ, UKd.brett@ic.uk

P. Aguiar, G. W. Hayes

Department of Chemical Engineering, Imperial College London, London SW7 2AZ, UK

N. P. Brandon

Department of Earth Science Engineering, Imperial College London, London SW7 2AZ, UK

R. N. Bull, R. C. Galloway, M. Millward, A. R. Tilley

 Beta Research and Development Ltd., Derby, DE24 9GN, UK

K. Lillie

 Energy Technology Services, Stratford on Avon, CV37 OSZ, UK

C. Mellors

 MIRA Ltd., Nuneaton, CV10 0YU, UK

C. Smith

 Modec Vehicles, Coventry, CV5 9QE, UK


Corresponding author.

J. Fuel Cell Sci. Technol 3(3), 254-262 (Feb 06, 2006) (9 pages) doi:10.1115/1.2205348 History: Received November 28, 2005; Revised February 06, 2006

Project ABSOLUTE (advanced battery solid oxide fuel cell linked unit to maximize efficiency), aims to combine a sodium-nickel chloride battery and an intermediate temperature solid oxide fuel cell (IT-SOFC) to form an all-electric hybrid package that surpasses the efficiency and performance of a purely fuel cell driven vehicle, as well as extending the range of a purely battery driven electric vehicle. This paper discusses the project background, the ABSOLUTE hybrid concept, the methodology adopted, the vehicle types and drive cycles that best suit the hybrid and system control considerations. Results from a battery and IT-SOFC system model are presented.

Copyright © 2006 by American Society of Mechanical Engineers
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Figure 7

Polarization plot of sodium/nickel chloride + iron chloride cell

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Figure 8

Comparison of experimental and model results for a module of 10 ML3 ZEBRA cells

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Figure 9

Power and SOC model response over NEDC power cycle from 30% SOC

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Figure 10

Power and SOC model response over NEDC power cycle from 8% SOC

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Figure 1

ZEBRA cell construction and overall cell reaction

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Figure 2

ABSOLUTE hybrid system schematic

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Figure 3

Summary of the perceived advantages of the ABSOLUTE hybrid

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Figure 4

Comparison of ABSOLUTE hybrid average fuel economy against that of over 1000 vehicle types

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Figure 5

Process flow diagram (a) and simplified interpretation (b) of an IT-SOFC system operating on methane fuel with partial internal reforming

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Figure 6

Fuel cell net system electric efficiency and methane fuel consumption for 700–800°C IT-SOFC



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