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Titolo:
Electrochemical efficiency in multiple discharge recharge cycling of supercapacitors in hybrid EV applications
Autore:
Pell, WG; Conway, BE; Adams, WA; de Oliveira, J;
Indirizzi:
Univ Ottawa, Dept Biol, Ottawa, ON K1N 6N5, Canada Univ Ottawa Ottawa ON Canada K1N 6N5 ept Biol, Ottawa, ON K1N 6N5, Canada ESTCO, Nepean, ON, Canada ESTCO Nepean ON CanadaESTCO, Nepean, ON, Canada IEAElect Hybrid Vehicle Operating Agcy Annex 5, Nepean, ON, Canada IEAElect Hybrid Vehicle Operating Agcy Annex 5 Nepean ON Canada , Canada
Titolo Testata:
JOURNAL OF POWER SOURCES
fascicolo: 1-2, volume: 80, anno: 1999,
pagine: 134 - 141
SICI:
0378-7753(199907/08)80:1-2<134:EEIMDR>2.0.ZU;2-D
Fonte:
ISI
Lingua:
ENG
Soggetto:
SELF-DISCHARGE; CAPACITORS; ELECTRODES; BATTERIES;
Keywords:
supercapacitors; porous electrodes; hardware simulation;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Engineering, Computing & Technology
Citazioni:
14
Recensione:
Indirizzi per estratti:
Indirizzo: Conway, BE Univ Ottawa, Dept Biol, 10 Marie Curie St, Ottawa, ON K1N 6N5, Canada Univ Ottawa 10 Marie Curie St Ottawa ON Canada K1N 6N5 , Canada
Citazione:
W.G. Pell et al., "Electrochemical efficiency in multiple discharge recharge cycling of supercapacitors in hybrid EV applications", J POWER SOU, 80(1-2), 1999, pp. 134-141

Abstract

The use of large capacitance supercapacitors in series or series/parallel configurations has been envisaged and evaluated as a basis for load-levelling, and hence performance enhancement, in electric vehicles (EV) powered primarily by rechargeable batteries or fuel-cells. In this paper, charge/discharge efficiency in duty-cycles of the supercapacitor component are examined in relation to distributed resistance in porous double-layer and redox-type devices which restricts efficiency of discharge and recharge cycling, especially at high rates. Results of quantitative experiments on the responses of a five-element RC model hardware equivalent-circuit and a gold brush electrode an presented. Potential-recovery after discharge and potential-decay after recharge, and potential changes following load variations, enable efficiencies of charge delivery and acceptance to be evaluated. (C) 1999 Elsevier Science S.A. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 16/07/20 alle ore 06:32:24