Saft_在世界电池研究会的磷酸铁锂电池报告_(Saft_LiFePO4讲义)

SaftLiFePO4andBeyondBridgetDeveney,KamenNechevSAFTAmericaInc.,Cockeysville,MDRichardJow,KangXu,JanAllenArmyResearchLaboratoryAbouttheSpace&DefenseDivision(SDD)zSaftSpace&DefenseDivision(SDD)specializesintheresearch,designandmanufacturingofadvancedlithium-ionbatterysystems.zSDDdevelopsandmanufacturesthehighestpowerdensitybatterycellsintheworld.zSDDistheU.S.’slargestsupplierofLi-ionbatteriesforspaceandforhybridelectricmilitaryvehicles.SDDAtAGlancezLocated26milesnorthofBWIairportoffI-83.zTotalarea:49,000ft.2(~4,900m2)zDryroomarea:6,000ft.2(~600m2)zProductionlinecapableofproducingupto50,000highenergy(VLE),mediumrange(VLM),highpower(VLP)andveryhighpower(VLV)lithium-ioncellsperyeardeliveredascompletesystems.zApproximately160employees,50%withaprofessionaldegreeintheirfield.SaftGlobalManufacturingNetworkzSDDisadivisionofSaftAmerica,Inc.–asubsidiaryoftheSaftGroup,headquarteredinBagnolet,France.zSaftisamultinationalcompanyspecializinginthemanufactureanddevelopmentofhightechbatteriesforindustry.Space&DefenseDivision,Cockeysville,MDSBGIBGRBSASB/EADSJointVentureLiFePO4DevelopmentatSAFTzSAFTstartedworkingonLiFePO4chemistryin2005underaprogramwithArmyResearchLaboratoryandlatercontinuedtheworkunderMANTECH(USArmy)fundedeffort.zCurrentlySAFTisinternallyfundingthecontinuingdevelopmentofLiFePO4productportfolio.zSAFTisusingmaterialfromPhostech,whichiscurrentlytheonlylicensedsupplierofthematerialbyUniversityofTexas.zSAFTLiFePO4technologytargeteduseisdefense,however,otherapplicationscouldalsobeaddressed.LiFePO4DevelopmentatSAFTzForthefirsttwocellsdevelopedwithLiFePO4cathode,SAFTutilizedit’shighpowerelectrodedesignexpertisezDuringtheearlydevelopmentphaseelectrodeoptimizationwasperformedtoadapttheconductivenetworkaswellaselectrodeprocessingtothespecificsoftheLiFePO4material.zStandardcellhardwarewasused.Afterelectrodeoptimizationwasperformed,usingLiFePO4wasaPLUGINforSAFTproductionline.zAsexpectedthecellshadlowercapacityandpowercomparedtostandardNCAchemistry.VL10FeCellCellVL10FeCathodeLiFePO4NominalVoltage(V)3.3NominalCapacityatCrate(Ah)10MaximumDischargeCurrentat25°C(A)Continuous15002sPulse1700200mspulse2200SpecificEnergy(Wh/kg)54EnergyDensity(Wh/L)128SpecificPowerat25°C100%SOC(W/kg)Continuous43752sPulse5000200msPulse6400zCelloptimizedforVeryHighPowerapplicationszSAFTisusinglicensedsupplierfortheIronPhosphatecathodematerialVL10Fe0.00.51.01.52.02.53.03.54.0024681012Capacity(Ah)CellVoltage(V)12A180A500A1000A1250A1500AVL25FeCellzCelloptimizedforMediumPower/MediumEnergyapplicationszSAFTisusinglicensedsupplierfortheIronPhosphatecathodematerialVL25Fe11.522.533.540510152025Capacity(Ah)CellVoltage(V)25A50A75A125A200A250A375A1200ACellVL25FeCathodeLiFePO4NominalVoltage(V)3.3NominalCapacityatCrate(Ah)25MaximumDischargeCurrentat25°C(A)Continuous12002sPulse2200200mspulse2300SpecificEnergy(Wh/kg)89EnergyDensity(Wh/L)189SpecificPowerat25°C100%SOC(W/kg)Continuous31502sPulse4400200msPulse4600DFeCellzBuiltatSaft’sProductionsFacilityinValdeseNorthCarolinazSaftDcellƒSamechemistryavailableinC,5/4C,FatDsizez3.2AhzMediumPowerCellz110Wh/kgzOperatesfrom-40°Cto85°CImpedanceofSaftLiFePO4Dcells(6ADischarge/4Achargeat25°C)404244464850525456586062640%20%40%60%80%100%StateofCharge(%)Impedance(mOhm)100msDischarge15secDischarge100msCharge15secChargeVL25PFeCellzBecauseSaft’sIronPhosphateCellssharehardwarewiththeNCAchemistryawidearrayofcellsizeswithcontinuouslyimprovingdesignsisavailable.VL25PFeUpdatedCellDesign2.52.62.72.82.933.13.23.33.43.50510152025Capacity(Ah)CellVoltage(V)OlderCell25AOlderCell250ANewCell25ANewcell250AzLowerImpedancecellsallowforbatterieswithlowerthermalloadCapacity/EnergyofLiFePO4LargeCellsTotalEnergyDeliveredComparedtoastandardVL12V(NCAcathode):z75%ofVL12VEnergyat12Amps50%oftheVL12VEnergyat1500AmpsHighRateComparisonofVL10FeandVL12V(NCA)ContinuousDischargeat30°C4.0V-1.5V0.00.51.01.52.02.53.03.54.04.55.0024681012Capacity(Ah)Voltage(V)1500AIronPhosphate1500AVL12V1CRateComparisonofVL10FeandVL12V(NCA)ContinuousDischargeat30°C4.0V-1.5V0.00.51.01.52.02.53.03.54.04.55.05.56.002468101214Capacity(Ah)Voltage(V)12AVL10Fe12AVL12VPulsePowerofLiFePO4LargeCellsVL10Fe5400W/kgatRoomTemperatureMOSTPOWERFULLiFePO4CELLVL10FeCanDeliver3000Wfor5seconds1.51.82.02.32.52.83.03.33.53.80123456Time(sec)Voltage(V)050010001500200025003000350040004500Power(W)VoltsWattsVL25FeCanDeliver4000Wfor2seconds1.001.502.002.503.003.504.0000.511.522.533.54Time(s)Voltage(V)0100020003000400050006000Power(W)VoltsAmpsLiFePO4Cells–LowTemperaturezLowtemperatureperformanceiscriticalforLi-ionbatteriesinmilitaryapplications.zThenaturallimitationsoftheLiFePO4materialwereovercomeinthedevelopmentphasebyelectrodedesign(porosityandtypeofconductiveadditives)zElectrolyteinthesecellshasalsobeenoptimizedforlowtemperatureoperation.VL25PFe125A11.251.51.7522.252.52.7533.253.53.7540510152025Capacity(Ah)CellVoltage25°C0°C-10°C-20°C-40°CLiFePO4DevelopmentDischargePower-20oC5010015020025030035040045050010%30%50%70%90%SOC%PeakPower(W)VL25PFeVL34PDischargePower-40oC608010012014016018020022024010%30%50%70%90%SOC%Pea