UL_WP_Safety-Issues-for-Lithium-Ion-Batteries.pdfVIP专享VIP免费原创优质

SafetyIssuesforLithium-IonBatteriesSafetyIssuesforLithium-IonBatteries2SafetyIssuesforLithium-IonBatteriesLithium-ionbatteriesarewidelyusedasapowersourceinportableelectricalandelectronicproducts.Whiletherateoffailuresassociatedwiththeiruseissmall,severalwell-publicizedincidentsrelatedtolithium-ionbatteriesinactualusehaveraisedconcernsabouttheiroverallsafety.Teststandardsareinplacethatmandateanumberofindividualtestsdesignedtoassessspecificsafetyrisksassociatedwiththeuseoflithium-ionbatteries.However,ULandotherstandardsdevelopmentorganizationsarecontinuingtoreviseandupdateexistinglithiumbatterystandardstoreflectnewknowledgeregardinglithium-ionbatteryfailuresinthefield.ULandotherresearchorganizationsarecontributingtobatterysafetyresearchwithafocusoninternalshortcircuitfailuresinlithium-ionbatteries.Theresearchisdirectedtowardimprovingsafetystandardsforlithium-ionbatteries.OverviewOverthepast20years,rechargeable(alsoknownassecondary)lithium-ionbatterytechnologieshaveevolved,providingincreasinglygreaterenergydensity,greaterenergypervolume,longercyclelifeandimprovedreliability.Commerciallithium-ionbatteriesnowpowerawiderangeofelectricalandelectronicdevices,includingthefollowingcategories:•Consumerelectricalandelectronicdevices—Lithium-ionbatteriespowerconsumerelectricalandelectronicdevicesfrommobilephonesanddigitalcameras,tolaptopcomputers.•Medicaldevices—Lithium-ionbatteriesarealsousedinmedicaldiagnosticequipment,includingpatientmonitors,handheldsurgicaltools,andportablediagnosticequipment.•Industrialequipment—Industrialequipmentoffersawiderangeofapplicationsforlithium-ionbatteries,includingcordlesspowertools,telecommunicationssystems,wirelesssecuritysystems,andoutdoorportableelectronicequipment.•Automotiveapplications—Anewgenerationofelectricvehiclesisbeingpoweredbylargeformatlithium-ionbatterypacks,includingbattery-electricvehicles,hybrid-electricvehicles,plug-inhybrid-electricvehiclesandlight-electricvehicles.SafetyIssuesforLithium-IonBatteries3ULisinvolvedinstandardsdevelopmentworldwideandhastechnicalstaffparticipatinginleadershipandexpertrolesonseveralnationalcommitteesandmaintenanceteamsassociatedwithbatteryandfuelcelltechnologies.Ms.LaurieFlorenceistheconvener(chair)ofIECSC21A—WorkingGroup5.SheisamemberoftheSC21AUSTAGandSC21AWGs2,3,4and5.FlorenceisalsoamemberoftheIECTC35USTAG,TC35MT15,IECTC31HWG37,andtheANSINEMAC18committees.SheparticipatedintheIEEE1625andIEEE1725revisions,aswellastheCTIAbatteryadhoccommittee.FlorenceisalsoontheinformalgroupworkingonrevisingUNElectricVehicleSafety–GlobalTechnicalRegulation(EVS-GTR).FlorenceisalsoamemberofISOTC22/SC21USTAGandamemberoftheWG3committeeforelectricvehiclebatteries,aswellastheSAETEVVBC1batterysafetycommittee(developingSAEJ2929safetystandardforlithiumionEVbatteries)andTEVHYB4(SAEJ2464RESSabusemanual).FlorenceparticipatesontheANSIEVSPcommittee,whichhasdevelopedanelectricvehiclestandardizationroadmap.Mr.HarryP.Jonesistheconvener(chair)ofIECTC105—WorkingGroup8.FlorenceandMr.AlexLiang(ULTaiwan)areonETF13forbatteries.ULTaiwanwasthefirstCBTLforIEC62133,followedbyULSuzhou,ULJapanatISEandULNorthbrookoffices.ULJapanisapprovedtoprovidethePSEmarkinJapanforlithium-ionbatteriesaspartoftheDENANprogram.ULisaCTIACATLforthebatterycertificationprogram.Theworldwidemarketforlithiumbatteriesisprojectedtoreachnearly$10billion(USD)inannu...