试验项目 | 章节号 | 标准要求 |
Externalshortcircuittest(cellorcellblock) | 8.2.1 | Fullychargedcellsarestoredinanambienttemperatureof25°C±5°C.Eachcellisthenshortcircuitedbyconnectingthepositiveandnegativeterminalswithatotalexternalresistanceof30+/-10mΩ. Thecellsaretoremainontestfor6horuntilthecatemperaturedeclinesby20%ofthemaximumtemperatureri,whicheveristhesooner |
Impacttest(cellorcellblock) | 8.2.2 | Thetestsampleistobeplacedonaflatsurface.A15,8mmdiameterbaristobeplacedacrossthe?centreofthesample.A9,1kgmassistobedroppedfromaheightof61±2,5cmontothebar?placedonthesample. 有那么一个人Acylindricalorprismaticcellistobeimpactedwithitslongitudinalaxisparalleltotheflatsurfaceandperpendiculartothelongitudinalaxisofthe15,8mmdiametercurvedsurfacelyingacrossthe??centreofthetestsample.Aprismaticcellisalsotoberotated90degreesarounditslongitudinalaxissothatboththewideandnarrowsideswillbesubjectedtotheimpact.Eachsampleistobesubjectedtoonlyasingleimpactwithparatesamplestobeudforeachimpact.(efigure2) |
Droptest(cellorcellblock,andbatterysystem) | 8.2.3 | Thedroptestisconductedonacellorcellblock,andbatterysystem*.Thetestmethodandtheheightofthedroparedeterminedbythetestunitweightasshowninthetable2. |
扎克打野天赋Wholedroptest(cellorcellblock,andbatterysystem) | Eachfullychargedtestunitisdroppedthreetimesfromaheightshownintable2ontoaconcretefloor. Inthecaofthemassoftestunitislessthan7kg,thetestunitsaredroppedsoastoobtainimpactsinrandomorientations.Inthecaofthemassoftestunitis7kgormoreandlessthan20kg,thetestshallbeperformedwiththetestunitdroppedinthebottomdowndirection.Thebottomsurfaceofthetestunitisspecifiedbythemanufacturer. Afterthetest,thetestunitsshallbeputonrestforaminimumofonehourandthen434avisualinspectionshallbeperformed. | |
Edgeandcornerdroptest(cellorcellblock,andbatterysystem) | Each?fullychargedtestunitisdroppedtwotimesfromaheightshownintable2ontoaconcretefloor.??Thedroptestconditionsshallassure,withtestarrangementsasshowninFigure3,Figure4andFigure?5?5,reproducibleimpactpointsfortheshortestedgedropimpactandthecornerimpacted.Thetwoimpacts,perimpacttype,shallbeonthesamecornerandonthesameshortestedge.Forthe?cornerandedgedrops,thetestunitshallbeorientedinsuchawaythatastraightlinedrawnthroughthestruckcorner/edgeandthetestunitgeometriccentreisapproximatelyperpendiculartotheimpactsurface. | |
Thermalabutest(cellorcellblock) | 8.2.4 蝼步甲 | Eachfullychargedcell,stabilizedatroomtemperature,isplacedinagravityorcirculatingairconvectionoven. Theoventemperatureisraidatarateof5°C/min±2°C/mintoatemperatureof85°C±5°C.Thecellremainsatthistemperaturefor3hbeforethetestisdiscontinued. |
Overchargetest(cellorcellblock) | 8.2.5 | Thetestshallbecarriedoutatanambienttemperatureof25°C±5°C.Eachtestcellshallbedischargedataconstantcurrentof0,2?It?Atoafinaldischargevoltagespecifiedbythemanufacturer.Samplecellsshallthenbechargedwithaconstantcurrentequaltothemaximumspecifiedchargecurrentofthebatterysystemuntilthevoltagereachesthemaximumvoltagevaluethatispossiblewhenanysinglefailureonthechargecontrolorchargeprotectionfunctionoccurs.Then,thechargeisterminated.Thevoltageandtemperatureshouldbemonitoredduringthetest. Thetestshallbecontinueduntilthetemperatureofthecellsurfacereachessteadystateconditions(lessthan10°Cchangeina30-minuteperiod)orreturnstoambient. | 生命在你手中
Forceddischargetest(cellorcellblock) | 8.2.6 | Adischargedcellissubjectedtoaforceddischargeat1,0?It?Aforatestperiodof90min.Afterthetestperiod,avisualinspectionshallbeperformed. Ifthedischargevoltagereachesthetargetvoltageshownbelowwithinthetestperiod,thevoltageshallbekeptatthetargetvoltagebyreducingthecurrentfortheremainingtestperiod.Thetargetvoltageisdeterminedasfollows: i.Batterysystemprovidedwithredundantindependentprotectionfordischargevoltagecontrolorthebatterysystemhasonlysinglecellorcellblock: Targetvoltage=-(upperlimitchargevoltageofthecell) ii.Batterysystemprovidedwithonlyasingleprotectionorlessfordischargevoltagecontrol: Targetvoltage=-[upperlimitchargevoltageofthecell?×?(n-1)]. n;thenumberofcellsconnectedinriesinthebatterysystem. |
Internalshort-circuittest(cellorcellblock) | 8.3.2 | Refertoclau8.3.9ofIEC62133Ed.2 ThesamplepreparationproceduremaybechangedfromtheprocedureoutlinedinIEC62133priortoperformingthefinalpressingprocesswiththecorrespondingchargingprocedureaccordingtoclau5428.3.9ofIEC62133Ed.2. |
Propagationtest(batterysystem) | 8.3.3 | 正月初五迎财神Thebatterysystemisfullychargedandthenleftuntilthecellsstabilizeat25°C?±5°C.Onecellinthebatterysystemisheateduntilthecellentersthermalrunaway,forexample,usingresistiveheatingorthroughthermalconductiveheattransferusinganexternalheatsource.Themethodudtocreateathermalrunawayinonecellistobedescribedanddocumentedinthetestreport.Afterthermalrunawayinthecellisinitiated,theheateristurnedoffandbatterysystemisobrvedfor1hour. Othermethodsthantheexamplesnotedabovetoinitiatethermalrunawayinonecellareallowed.SeenormativeAnnex-1formoredetails. |
Overchargecontrolofvoltage(batterysystem) | 9.2.2 | Thetestshallbecarriedoutinanambienttemperatureof25°C±5°Candundernormaloperatingconditionswiththecoolingsystem(ifany)operating(maincontactorsareclodwiththebatterysystemcontrolledbytheBMU).Eachtestbatterysystemshallbedischargedataconstantcurrentof0,2?It?A,toafinaldischargevoltagespecifiedbythemanufacturer.Samplebatteriesshallthenbechargedatthemaximumcurrentoftherecommendedchargerwithtvoltageexceedingtheupperlimitchargevoltageby10%foreachcellinthebattery. Theexceededvoltagecanbeappliedbyanadditionalchargerifitisdifficulttodoitbytheoriginalcharger.Alsotheexceededvoltagecanbeappliedtoapartofthecell(s)inthebatterysystemifitisdifficulttodoitinusingthewholebatterysystem. ThetestshallbecarriedoutuntiltheBMUterminatesthecharge,whichshouldoccurbeforereaching110%oftheupperlimitchargevoltage.Dataacquisition/monitoringshallbecontinuedforonehourafterchargeisstopped.Allfunctionsofthebatterysystemshallbefullyoperationalasdesignedduringthetest. |
黄香扇枕Overchargecontrolofcurrent(batterysystem) | 9.2.3 | Thetestshallbecarriedoutinanambienttemperatureof25°C±5°Candundernormaloperatingconditionswiththecoolingsystem(ifany)operating(maincontactorsclodwiththebatterysystembeingcontrolledbytheBMU).Eachtestbatterysystemshallbedischargedataconstantcurrentof0,2?It?A,toafinaldischargevoltagespecifiedbythemanufacturer.Samplebatteriesshallthenbechargedatacurrentexceedingthemaximumchargecurrentby20%.Dataacquisition/monitoringshallbecontinuedforonehourafterchargeisstopped.Allfunctionsofthebatterysystemshallbefullyoperationalasdesignedduringthetest |
Overheating661?control(batterysystem) | 9.2.4 | Thetestshallbecarriedoutinaninitialambienttemperatureof25°C±5°Candundernormaloperatingconditions(maincontactorsareclodwithbatterysystembeingcontrolledbytheBMU)withtheexceptionthatthecoolingsystem,ifprovided,shallbedisconnected.Eachtestbatterysystemshallbedischargedataconstantcurrentof0,2?It?A,toafinaldischargevoltagespecifiedbythemanufacturer.Samplebatteriesshallthenbechargedattherecommendedcurrenttoa50%stateofcharge.Thetemperatureofthebatterysystemshallbeincreadto5°Cabovethemaximumoperatingtemperature.ThechargeiscontinuedattheelevatedtemperatureuntiltheBMUterminatesthecharge.Dataacquisition/heBMUhasterminatedcharge). |
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