流化床電鍍法制備鎳包覆納米碳纖維的研究

1、東北大學(xué)碩士學(xué)位論文流化床電鍍法制備鎳包覆納米碳纖維的研究姓名：于冰申請學(xué)位級別：碩士專業(yè)：冶金物理化學(xué)指導(dǎo)教師：翟玉春20060101東北大學(xué)項士學(xué)位論文ResearchonPlq硪咖ofNickelcoatedCarbonNanomateriaisbyFluidizedBedElectrodeAbstractCarbonnanofibreswhichhasmanyexcellentperformance％anewmatcriniha

2、sbeenusedinextensivefieldswhicharenliarowaveabsorbed、coating、hydrogenstorage、Li—ionbatteriesandsoonInthisthesis，weresearchedonpreparationofnickelcoatingcarbonnanofibreswiththemethodofFBEelectroplatingandmanufactureanewco

3、mpositematerialInfluencingfactorstothepreparationsandtestingelectrochemicalperformancesforLi_ionbatteries，concludingtheoptimizingcraftTheonedimensionmathematicalmodelofFBEinWattstypeelectrolytewasestablished，thenonlinear

4、ityordinarydiffemntialequationssetanditsboundaryconditionsweregiven，theequationsforcalculationofinvolvedparametemweresuggestedThedistributionofpotential，overpotentialofparticulatephase，electrolytephaseandthecnrrentdensit

5、iesatspecificsurfacearediscnssedunderexperimentalconditionsatvariablebedexpansion，superficialcurrentdensitiesDrawingtheconchtsiontheFBEcanbeperformedwellunlessmedemtebedexpansionandlargersuperficialCUrlentdensitiesareada

6、ptcdThenthemasswansferregularityofFBEw∞studiedbyapplyingquasicoefficientrelationship，UsingCNFstheeraRofthepreparationofnickelcoatingcarbonnanofibreswithFBEelectroplatingwasstudiedThroughoddfactorandorthogonalexperiments，

7、theeffectsofpHvalue，Ni2concentration，currentdensitytemperature，currentfeedermaterial，timeonenergyconsumptionandcoatedqualitywerestudiedandanalyzedFinallytheVGCNFswerecharacterizedbySEMXRDanalysis，andgiventheappropriateem

8、itofpreparationUsingcarbonnanofibreswithnickelcoatingastheanodematerialofLiionbatteryelectrochemicalperformancewastested，thebestproductwasconfirmedintegratingthefirstdischargespecificcapacityandcyclescapabilityItsfirstdi

9、schargespecificcapacitywas455mAhg“1，nonreversiblespecificcapacitywas321mAhg1，efficiencywas93percentafter10cyclesTheoptimizingcraftconditionsareNi2concentration794percent，pHvalue5，currentdensity004A／cm2，temperature40。C，ti

10、me3hoursThecraftofthepreparationofnickelcoatingcarbonnanofibreswiththemethodofFBEelectroplafingissimple，efficient，lowcost，complexprecedingdisposalneedlessandgoodperformancewhichisavailableinappficationKeywords：Nickel—coa