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Article: Lead acid-NiMH hybrid battery system using gel electrolyte
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TitleLead acid-NiMH hybrid battery system using gel electrolyte
 
AuthorsWeng, G
Li, VCY
Chan, KY
 
KeywordsEngineering
Electrical engineering
Chemical engineering
 
Issue Date2012
 
PublisherElectrochemical Society, Inc.. The Journal's web site is located at http://www.ecsdl.org/ECST/
 
CitationECS Transactions, 2012, v. 41 n. 13, p. 133-143 [How to Cite?]
DOI: http://dx.doi.org/10.1149/1.3691915
 
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.
 
ISSN1938-6737
 
DOIhttp://dx.doi.org/10.1149/1.3691915
 
ISI Accession Number IDWOS:000313717800009
 
DC FieldValue
dc.contributor.authorWeng, G
 
dc.contributor.authorLi, VCY
 
dc.contributor.authorChan, KY
 
dc.date.accessioned2012-08-16T05:48:26Z
 
dc.date.available2012-08-16T05:48:26Z
 
dc.date.issued2012
 
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.description.naturelink_to_OA_fulltext
 
dc.identifier.citationECS Transactions, 2012, v. 41 n. 13, p. 133-143 [How to Cite?]
DOI: http://dx.doi.org/10.1149/1.3691915
 
dc.identifier.doihttp://dx.doi.org/10.1149/1.3691915
 
dc.identifier.epage143
 
dc.identifier.hkuros203311
 
dc.identifier.isiWOS:000313717800009
 
dc.identifier.issn1938-6737
 
dc.identifier.issue13
 
dc.identifier.spage133
 
dc.identifier.urihttp://hdl.handle.net/10722/159291
 
dc.identifier.volume41
 
dc.languageeng
 
dc.publisherElectrochemical Society, Inc.. The Journal's web site is located at http://www.ecsdl.org/ECST/
 
dc.publisher.placeUnited States
 
dc.relation.ispartofECS Transactions
 
dc.subjectEngineering
 
dc.subjectElectrical engineering
 
dc.subjectChemical engineering
 
dc.titleLead acid-NiMH hybrid battery system using gel electrolyte
 
dc.typeArticle
 
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