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Analysisofa
High-PowerLi-IonCell
OverviewBatteryDesignStudioCellDesignProcessHigh-powercell:experimentalcharacterizationTestingDissectionModelparametersCasestudiesCollectorthicknessTabpositionParameterizeRCRmodel2
BDSCellDesignProcessPage3PhysicalCellDescriptionCoin,cylindricalpouch,prismaticGivessize,weight,equilibriumvoltage,capacity,billofmaterials,etc.FitModelParameterscircuit,physicsAllowssimulationofperformanceUseand/orDistributeTextBatteryModel(TBM)Celldesignandmodelareintegrallycoupled.
High-PowerCell–UR18650WT.Waldmann,M.Wilka,M.Kasper,M.Fleischhammer,M.Wohlfahrt-Mehrens“TemperaturedependentageingmechanismsinLithium-ionbatteries-APost-Mortemstudy”J.PowerSrc.262(2014)129-135.J.Wang,J.Purewal,P.Liu,J.Hicks-Garner,S.Soukazian,E.Sherman,A.Sorenson,L.Vu,H.Tataria,M.W.Verbrugge“Degradationoflithiumionbatteriesemployinggraphitenegativesandnickel-cobalt-manganeseoxide+spinelmanganeseoxidepositives:Part1,agingmechanismsandlifeestimationJ.PowerSrc.269(2014)937-948.Publicationsusingthiscell
CellCharacterization
-Discretizedvaluesfromdatasheet5
CellCharacterization
-independenttestingvs.datasheetIndependenttestinggavedischargecurvesclosetothoseondatasheet.6
Dissection7
CreateTBMfile8
BDSPhysicalCellDescriptionPositiveNegative9
AmountofNCM/LMOEquilibriumvoltagecurvesNCMusedToda3100lowratedischargeLMOusedcurvefromGraphitefornegativeUsedBDSformationroutinetocomputecellcapacityversusamountofLMO;80wt.%NCM/20wt.%LMOgave1.52Ahcapacity10NCMLMO
BuildReportcellwtw/olabel42.96gComputedcellweightagreesverywellwithmeasuredvalue.11
BuildReporttabtab12
C-Rate(1.5A)DischargeSimulatedlowratedischargeagreeswellwithexperimentalcurve.13
10ADischargeAdjustednegativeSEIresistancetogetfit.Reasonablefitswithlimiteddataset.Temperature(?C)CellVoltage(V)14
M
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