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Article: Three electrolyte high voltage acid-alkaline hybrid rechargeable battery

TitleThree electrolyte high voltage acid-alkaline hybrid rechargeable battery
Authors
Li, HWeng, GLi, CYVChan, KY
KeywordsAcid alkaline hybrid rechargeable battery
Lead acid battery
Ni-MH battery
Three-electrolyte cell
Issue Date2011
PublisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/electacta
Citation
Electrochimica Acta, 2011, v. 56 n. 25, p. 9420-9425 How to Cite?
DOI: http://dx.doi.org/10.1016/j.electacta.2011.08.027
AbstractPerformance characteristics of a three electrolyte rechargeable acid-alkaline hybrid battery using a PbO2 positive plate and a nickel metal hydride (NiMHx) negative electrode in separate electrolyte of H2SO4 and KOH were studied. This hybrid battery has three electrolytes in a single cell. A neutral K2SO4 salt solution was placed between the acid and alkaline compartments of the cell, in which a cation exchange membrane and an anion exchange membrane, were employed to separate these three electrolytes. The open circuit voltage of this hybrid cell was found to be 2.64 V in an electrolyte configuration of 1 M H 2SO40.2 M K2SO42 M KOH electrolyte configuration, compared to 1.92 V in the conventional lead-acid cell in 1 M H2SO4 and 1.40 V in a NiMHx cell in 2 M KOH. This hybrid acid-alkaline PbO2/NiMHx battery was shown to operate with a voltage 20% higher than the conventional lead acid battery and 110% higher than nickel-metal hydride battery at 1/3 C discharging rate. The concentrations of the three electrolytes, the dimension of the electrolyte chamber, and other cell/operation parameters with impacts on the hybrid cell performance were investigated. © 2011 Elsevier Ltd. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/142332
ISSN
0013-4686
2023 Impact Factor: 5.5
2023 SCImago Journal Rankings: 1.159
ISI Accession Number ID
WOS:000295997000058
Funding AgencyGrant Number
Research Grants Council of Hong KongGRF HKU 700209P
GRF HKU 700210P
University of Hong Kong SRT
University Development Fund on the Initiative of Clean Energy and Environment
Zentric Inc
Croucher Foundation
Universitas 21 Fellowship
Funding Information:

The authors would like to acknowledge the financial support on this project from Research Grants Council of Hong Kong (GRF HKU 700209P, GRF HKU 700210P), University of Hong Kong SRT, The University Development Fund on the Initiative of Clean Energy and Environment, and Zentric Inc. KYC acknowledges the awards of Croucher Foundation Senior Research Fellowship and the Universitas 21 Fellowship.

References
References in Scopus

 

DC FieldValueLanguage
dc.contributor.authorLi, Hen_HK
dc.contributor.authorWeng, Gen_HK
dc.contributor.authorLi, CYVen_HK
dc.contributor.authorChan, KYen_HK
dc.date.accessioned2011-10-28T02:43:15Z-
dc.date.available2011-10-28T02:43:15Z-
dc.date.issued2011en_HK
dc.identifier.citationElectrochimica Acta, 2011, v. 56 n. 25, p. 9420-9425en_HK
dc.identifier.issn0013-4686en_HK
dc.identifier.urihttp://hdl.handle.net/10722/142332-
dc.description.abstractPerformance characteristics of a three electrolyte rechargeable acid-alkaline hybrid battery using a PbO2 positive plate and a nickel metal hydride (NiMHx) negative electrode in separate electrolyte of H2SO4 and KOH were studied. This hybrid battery has three electrolytes in a single cell. A neutral K2SO4 salt solution was placed between the acid and alkaline compartments of the cell, in which a cation exchange membrane and an anion exchange membrane, were employed to separate these three electrolytes. The open circuit voltage of this hybrid cell was found to be 2.64 V in an electrolyte configuration of 1 M H 2SO40.2 M K2SO42 M KOH electrolyte configuration, compared to 1.92 V in the conventional lead-acid cell in 1 M H2SO4 and 1.40 V in a NiMHx cell in 2 M KOH. This hybrid acid-alkaline PbO2/NiMHx battery was shown to operate with a voltage 20% higher than the conventional lead acid battery and 110% higher than nickel-metal hydride battery at 1/3 C discharging rate. The concentrations of the three electrolytes, the dimension of the electrolyte chamber, and other cell/operation parameters with impacts on the hybrid cell performance were investigated. © 2011 Elsevier Ltd. All rights reserved.en_HK
dc.languageengen_US
dc.publisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/electactaen_HK
dc.relation.ispartofElectrochimica Actaen_HK
dc.subjectAcid alkaline hybrid rechargeable batteryen_HK
dc.subjectLead acid batteryen_HK
dc.subjectNi-MH batteryen_HK
dc.subjectThree-electrolyte cellen_HK
dc.titleThree electrolyte high voltage acid-alkaline hybrid rechargeable batteryen_HK
dc.typeArticleen_HK
dc.identifier.emailChan, KY:hrsccky@hku.hken_HK
dc.identifier.authorityChan, KY=rp00662en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.electacta.2011.08.027en_HK
dc.identifier.scopuseid_2-s2.0-80053228374en_HK
dc.identifier.hkuros197668en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-80053228374&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume56en_HK
dc.identifier.issue25en_HK
dc.identifier.spage9420en_HK
dc.identifier.epage9425en_HK
dc.identifier.eissn1873-3859-
dc.identifier.isiWOS:000295997000058-
dc.publisher.placeUnited Kingdomen_HK
dc.identifier.scopusauthoridLi, H=36864001100en_HK
dc.identifier.scopusauthoridWeng, G=53265381700en_HK
dc.identifier.scopusauthoridLi, CYV=53264183900en_HK
dc.identifier.scopusauthoridChan, KY=7406034142en_HK
dc.identifier.issnl0013-4686-

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