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Article: Lead acid-NiMH hybrid battery system using gel electrolyte

TitleLead acid-NiMH hybrid battery system using gel electrolyte
Authors
KeywordsEngineering
Electrical engineering
Chemical engineering
Issue Date2012
PublisherElectrochemical Society, Inc.. The Journal's web site is located at http://www.ecsdl.org/ECST/
Citation
ECS Transactions, 2012, v. 41 n. 13, p. 133-143 How to Cite?
AbstractA hybrid battery system with gel electrolytes is proposed here to alleviate some limitations on conventional batteries, such as maintenance cost and acid stratification for the lead-acid battery, high self-discharge and short life cycles for high current discharge for nickel-metal hydride battery. This hybrid battery consists of a lead-acid positive electrode and a nickel-metal hydride negative electrode, operating in H2SO4-silica gel and KOH-potassium salt poly(acrylic acid) gel electrolytes via monopolar ion exchange membranes, respectively. The hybrid battery using gel electrolyte maintained stable discharge plateau at 2.27 V and longer discharge capacity than wet electrolyte system. This improved performance may be due to the gel electrolyte which can prevent acid stratification, reduce the corrosion rate of electrodes, and resolve the problem of salting-out in the central chamber for aqueous electrolyte system.
Persistent Identifierhttp://hdl.handle.net/10722/159291
ISSN
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorWeng, Gen_US
dc.contributor.authorLi, VCYen_US
dc.contributor.authorChan, KYen_US
dc.date.accessioned2012-08-16T05:48:26Z-
dc.date.available2012-08-16T05:48:26Z-
dc.date.issued2012en_US
dc.identifier.citationECS Transactions, 2012, v. 41 n. 13, p. 133-143en_US
dc.identifier.issn1938-6737-
dc.identifier.urihttp://hdl.handle.net/10722/159291-
dc.description.abstractA hybrid battery system with gel electrolytes is proposed here to alleviate some limitations on conventional batteries, such as maintenance cost and acid stratification for the lead-acid battery, high self-discharge and short life cycles for high current discharge for nickel-metal hydride battery. This hybrid battery consists of a lead-acid positive electrode and a nickel-metal hydride negative electrode, operating in H2SO4-silica gel and KOH-potassium salt poly(acrylic acid) gel electrolytes via monopolar ion exchange membranes, respectively. The hybrid battery using gel electrolyte maintained stable discharge plateau at 2.27 V and longer discharge capacity than wet electrolyte system. This improved performance may be due to the gel electrolyte which can prevent acid stratification, reduce the corrosion rate of electrodes, and resolve the problem of salting-out in the central chamber for aqueous electrolyte system.-
dc.languageengen_US
dc.publisherElectrochemical Society, Inc.. The Journal's web site is located at http://www.ecsdl.org/ECST/-
dc.relation.ispartofECS Transactionsen_US
dc.subjectEngineering-
dc.subjectElectrical engineering-
dc.subjectChemical engineering-
dc.titleLead acid-NiMH hybrid battery system using gel electrolyteen_US
dc.typeArticleen_US
dc.identifier.emailWeng, G: guoming@hku.hken_US
dc.identifier.emailLi, VCY: cyvli@hku.hken_US
dc.identifier.emailChan, KY: hrsccky@hku.hk-
dc.identifier.authorityChan, KY=rp00662en_US
dc.description.naturelink_to_OA_fulltext-
dc.identifier.doi10.1149/1.3691915-
dc.identifier.scopuseid_2-s2.0-84879511161-
dc.identifier.hkuros203311en_US
dc.identifier.volume41en_US
dc.identifier.issue13-
dc.identifier.spage133en_US
dc.identifier.epage143en_US
dc.identifier.isiWOS:000313717800009-
dc.publisher.placeUnited States-

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