碳材料与锂离子电池和铅酸电池性能的关系

1、Carbon Materials to Advance Li-ionand Lead-acid Battery PerformanceHanwei Lei, Berislav Blizanac, PaolinaAtanassova, Aurelien DuPasquier, Miki OljacaCIBF2014 International Conference on the Frontier ofAdvanced BatteriesJune 20-22, 2014, Shenzhen, ChinaOutline Cabot Introduction Cabot LITXTM Carbon A

2、dditives for Li-ionBattery Advancement Cabot PBXTM Performance Additives forAdvanced Lead-Acid Batteries Summary2Cabot Corporationmanufacturing siteaffiliateregional headquarters NYSE: CBT since 1968 Founded 1882 Global performancematerials company 46 manufacturing sitesin over 20 countries Core tec

3、hnical competencies in fineparticles and surface modification FY2013 sales of $3.5B34Segments and BusinessesPerformance MaterialsFumed MetalOxidesMasterbatchSpecialty BlacksReinforcementMaterialsRubberblacksPurificationSolutionsBattery MaterialsSecurityInkjetAerogelElastomerCompositesAdvancedTechnol

4、ogiesSpecialtyFluidsLeading Positions5carbon blackfumed metaloxidesactivated carboncesiumformate#1#2inkjetcolorants #1#1#1Core Competency- Design and Manufacture Particle MaterialsConductiveLow viscosityadditiveReinforcingPigments6Outline Cabot Carbon Technology Introduction Cabot LITXTM Carbon Addi

5、tives for Li-ionBattery Advancement Cabot PBXTM Performance Additives forAdvanced Lead-Acid Batteries Summary7Increased importance ofconductive additiveConductive Additives for Li-Ion CathodesConductive additive properties need to match cathodes and applications8Types of Carbon-Based Conductive Addi

6、tivesDevelop and advance new products based on:Specialty high performance carbon blacks Graphenes9carbonCurrentDensitymA/mgLITXLITXTM: Stability for High-Charging-V Li-ionNew LITX grades showed improved electrochemical stability toelectrolyte oxidation, suitable for next gen higher-charging-voltageL

7、IB development10ChargingVoltage (V)LCOCapaciity(mAh/g)145175210Capacityratio100%121%145%2.02.53.03.54.04.55.02.01.51.00.50.0-0.5-1.0-1.5-2.0Denka BlackSuper PEC300LITX50+Carbon ACarbon BKB CarbonLITXTM 200: Performance vs Competition LITX200 showed better performance vs other grades11Carbon

8、 A and Bat 1wt%Carbon A and Bat 3 wt%LITXTM 200 : SA Selection & LFP PerformanceSmall particle LFPAgglomeratedLFPLITX200Carbon ASingle side laminatedfull cell5 wt.% CCA0.2C0.5C1C3C5C4 wt.% CCASingle side laminatedhalf cell0.2C0.5C1C2C5CLITX200Carbon ACarbon CLFPCarbon ALITX200Carbon CHgPorosimetry12

9、Viscosity IncreasesLITXTMRheological Processing BenefitsLITX enables higher solids loadings13CB+PVDF/NMP, 10wt.% SolidsCB/PVDF=1:1Competitor Carbon ACompetitor Carbon BLITXfor the same total paste viscosity.Competitionlow SA gradesLITXLITX lower viscosity enables Higher solids loading of the paste F

10、aster coating speed Less amount of NMP requiredManufacturingCost SavingVoltage VLITXTM50 Performance0204060801001201403.04.24.03.8Capacity mAh/g Benefits depends on overall celldesign and applications2032 coin cell, Li-anodeCathode loading: 4.5 mAh/cm2LITX50Carbon ACarbon B1C3Cfull cell0.2C

11、0.5CLFP5 wt.% CCASingle side laminatedLITX50Carbon ALCO1 wt.% CCA2C DischargeLITX50Carbon ACarbon BNCM(D50 1-2 mm)3 wt.% CCA14LITXTM Products Performance Overview15Outline Cabot Carbon Technology Introduction Cabot LITXTM Carbon Additives for Li-ionBattery Advancement Cabot PBXTM Performance Additiv

12、es forAdvanced Lead-Acid Batteries Summary16Various Applications Need Lead Acid Batterieswith Improved PerformanceAutomotiveStationaryMicro hybrid Cars (Start-Stop)MotiveFork LiftsTelecom, RenewablesE-BikesE-Motor Bikes17Requirements for Lead Acid Batteries in MicroHybrid Applications Improved Dynam

13、ic Charge Acceptance (DCA)Current/Power at 3-20 sec at fixed charge voltage of 14.4V typically at40-90 % SOCStable after cycling at PSoC conditions Improved cycle life at PSoC cyclingVariable tests depending on OEM requirements Cold crankHigh rate discharge at -18C Water lossWater loss during cyclin

14、gOvercharge test at 14.4V18Oil absorption number, cm /100 gAggregatesize/structure3Specific surface area, m /g01600100501502002503503002Cabot PBXTM Novel Carbon Black Additives to NAMLOWHIGHBP2000PBX51PBX09400 800 1200VCX72PbPbPbPbPbPbPbPbPbPb1920Without carbon additiveWith 0.5% Carbon BlackSEM Imag

15、es of Negative Active Mass (NAM):Different Size Pb CrystallitesCBPbPbCharge Acceptance W/kgNumberof micro cycles#SIMPLE CHARGE ACCEPTANCE TESTPBX51 Offers Significant Advantage in DCAand Cycle Life over other Carbonsdischarge with 1C A to 60% SoCcharge at 2.50V for 10 min.measuring of charge power a

16、t 5 sec. High charge acceptance can be achieved with 1wt.%PBX51 vs. 2% TDAAC Cycleability with PBX51 at 1-2wt. % 2-3 x higher compared to TDA ACACCELERATED HRPSoC CYCLING TESTdischarge with 1C A to 50% SoCcharge with 3C A for 78 sec.rest period 10 sec.discharge with 3C A for 78 sec. (5% DoD)upper vo

17、ltage limit 2.83 Vlower voltage limit 1.70 V3 cycle sets100070060050040030020010009008000.5 wt.% 1 wt.% 2 wt.% 3 wt.%Carbon loading wt.%PBX51PTDA AC2101600014000120001000080006000400020000.5 wt.% 1 wt.%2 wt.%3 wt.%PBX51PTDA AC221% PBX09ControlHRPSoC Cycling Test Results in 4.8Ah AGM Cell5% DOD with

18、3C rate,1min 50% SOC; 2.83V - 1.7V#cyclesControl2,329PBX51_1%15,104PBX09_1%6,5831% PBX51 Reduction of carbon loading improves cold crank Increased loading of lignosulfonate improves cold crank23Multiple Handles for Improving Cold CrankWater loss g/Ah24AGM cell test, 2.4V, 60C, overcharge testWater l

19、oss is higher than control and depends on carbon loading210543011.264.120.5PBX51 loadingwt.%Minimize Water Loss by Reducing PBX51Loading to 0.5 wt.%Water loss, 14.4V, 60C7.78876Water loss g/Ah257.783.003.434.003.002.001.000.008.007.006.005.001% PBX51 +0.2% VS-A 1% PBX51 + 0.4% VS-A 1% PBX51 + 0.6% V

20、S-AAGM cell test, 2.4V, 60C, overcharge testIncreased levels of LS reduce water loss more than 2 timesMinimize Water Loss by IncreasingLignosulfonate ConcentrationWater loss, 2.4V, 60C9.00HighOAN (cc/100g)StructureLow2650010002000100VXC72New Carbon Blacks for Flooded BatteriesBP20003001500PBXTM Cabo

21、t GradesPBX51200 PBX135PBX55PBX09Surface Area (m2/g) PBX09 and PBX51 grades designed for VRLAAGM batteries, mainlyhelp to improve charge acceptance and cycleability at high rates PBX55 and PBX135 grades designed for flooded lead acid batteries,have lower surface area and modified surface properties to minimizewater lossPBXTM Products Performance Overview27Summary Cabot LITXTM offers improved performance and stability withprocessing benefits for Li-ion batteries LITX200 enables higher power & energy applicationsHigh conductivity without processing