DC FieldValueLanguage
dc.contributorDepartment of Building Services Engineering-
dc.creatorLiu, Yen_US
dc.creatorSun, Pen_US
dc.creatorNiu, Hen_US
dc.creatorHuang, Xen_US
dc.creatorRein, Gen_US
dc.date.accessioned2021-04-09T08:50:16Z-
dc.date.available2021-04-09T08:50:16Z-
dc.identifier.issn0379-7112en_US
dc.identifier.urihttp://hdl.handle.net/10397/89514-
dc.language.isoenen_US
dc.publisherElsevieren_US
dc.subjectBattery fireen_US
dc.subjectSelf-ignitionen_US
dc.subjectSize effecten_US
dc.subjectThermal runawayen_US
dc.titlePropensity to self-heating ignition of open-circuit pouch lithium-ion battery pile on a hot boundaryen_US
dc.typeJournal/Magazine Articleen_US
dc.identifier.spage1en_US
dc.identifier.epage10en_US
dc.identifier.doi10.1016/j.firesaf.2020.103081en_US
dcterms.abstractThe fire safety issue of Lithium-ion (Li-ion) batteries is an important obstacle for its market growth and applications. Although the open-circuit condition (e.g. storage, transport and disposal) accounts for the major part of battery lifespan, little research has investigated its self-ignition hazard during non-operating periods. In this work, we experimentally study the self-heating behavior of piled pouch Li-ion battery cells through the classical hot-plate experiments. Results show that the self-ignition of battery pile occurs under a hot plate temperature ranging from 199 °C to 265 °C, depending on the number of cells and environmental cooling. Thermal runaway always first occurs to the cell next to the hot plate and then propagates to upper cells. This critical temperature is increased by 20 °C under a good environmental cooling condition whereas it is reduced by 40 °C as the state of charge increases from 30% to 80%. Moreover, the critical plate temperature for self-ignition increases slightly with the height of battery pile, which is opposite to both hot-plate experiments of hydrocarbon materials and the oven experiments of battery. Therefore, the classical self-ignition theory may not be applicable for Li-ion batteries next to a hot boundary. This research reveals new self-ignition phenomena and helps understand the fire safety of Li-ion batteries in storage and transport.-
dcterms.accessRightsembargoed access-
dcterms.bibliographicCitationFire safety journal, Mar. 2021, 103081, p. 1-10, doi: 10.1016/j.firesaf.2020.103081en_US
dcterms.isPartOfFire safety journalen_US
dcterms.issued2021-03-
dc.identifier.scopus2-s2.0-85078608413-
dc.identifier.artn103081en_US
dc.description.validate202104 bcvc-
dc.description.oaNot applicable-
dc.identifier.FolderNumbera0685-n18-
dc.identifier.SubFormID1003-
dc.description.fundingSourceRGC-
dc.description.fundingSourceOthers-
dc.description.fundingTextRGC: Early Career Scheme (25205519)-
dc.description.fundingTextOthers: Shanghai Science and Technology Committee (19160760700)-
dc.description.fundingTextHK PolyU (G-YBZ1)-
dc.description.pubStatusEarly release-
dc.date.embargo0000-00-00 (to be updated)en_US
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