+储能密度陶瓷电容器电气性能的研究

华中科技大学硕士学位论文高储能密度陶瓷电容器电气性能的研究姓名：朱志芳申请学位级别：硕士专业：高电压与绝缘技术指导教师：林福昌20050422IMLCBaTiO3BaTiO3MLCMLCIIAbstractPulsedpowertechnologyhasbeenwidelyusedinthefieldsofnationaldefense,biomedicine,scientificexperimentsandenvironmentalprotectionetc.Asoneofthekeycomponents,highenergydensitycomponentswithslowaging,steadyelectricalperformanceaswellaslonglifetimeisgreatlyexpectedtomeetthefastdevelopmentofthepulsedpowertechnology.Thisthesisisdevotedtotheobjectonceramiccapacitorsandtheirelectricalperformancesuchasceramicdielectric,lifetimeandreliability.Firstofall,thepulsedpowertechnologyandenergystoragecomponentsarerepresentedinchapter1.Meanwhile,thedevelopmentstatusofmulti-layerceramiccapacitorMLChomeandaboardandthemainresearchcontentsaredescribedaswell.Secondly,somedeepresearchonthefactorsaffectingtheenergystoragedensityoftheceramiccapacitorssuchasthedielectricconstant,theelectricalbreakdownstrengthandthedielectriclossofceramicdielectricmaterialarecarriedout.Furthermore,thecharacteristicsofbariumtitanatebasedceramicdielectricsuchasthegeneralstructure,ferroelectricity,characteristiccurveofdielectricconstantvstemperature,breakdownstrength,frequency,agingandnon-linearityareanalyzed.Therefore,Theinteriororganizationofceramicdielectricmaterialisintroduced,anditsinfluencesonelectricalperformanceofceramicdielectricarealsoanalyzed.BasedonthechoiceofceramicmaterialandthestudyonproductiontechniqueofMLC,theexperimentsabouttheelectricalperformanceandreliabilityhavebeendonebyusingthesamplesofhighenergydensityMLC.Theexperimentsmainlycontainedbothdestructiveexperimentationandsupersonicwaveaidednondestructivetestexperiment.InordertodothedestructiveexperimentconsistingofDCvoltagewithstandingandrepeatedcharge-dischargetests,theauthordevelopedasetofexperimentalfacilitybywhichalargenumberofexperimentsonthesampleshadbeendoneunderratedvoltageconditionandoverratedvoltagecondition.Asoneresultoftheexperiments,thebasicelectricalperformanceofceramiccapacitorsaswellastheIIIrelationshipbetweentheoperatingvoltageandthelifetimewereobtained.Aquickmethodtoassessthereliabilityofceramiccapacitorswerealsogotthroughthecombinationofsupersonicwaveaidednondestructivetestanddestructivetest.Finally,thewholeresearchesaresummarized,andthefollowingworkisprospected.Keywords:EnergystoragecomponentsHighenergydensityMulti-layerceramiccapacitorBariumtitanateElectricalperformanceNondestructivetestDCvoltagewithstandRepeatedcharge-discharge111.1207021[1][2]LosAlamosMaxwell[3,4][5]1-121-11-11-1[6]JWJ/gJ/cm3%2.5×107(108)1010~1013(1014)0.11~0.5(2~3)14~19(25)108(1010)109(1012)2~5(30~50)5~5(10~50)8~14(20~22)8×108(1011~1014)(1011)3640~90(100)(26)---5×109(1010)08~1.5(10)10~405~1.5(11)109(1011~1014)108~109(1010)1.5(5)---13~19(20~26)---108~109(1010)3~1520~804~16(24~25)(5~10)×108(5×1011)10790~1000(104)(5~18)×102(5×103)14(23)---5×1011(1013)------8~20(30)---107~108(1013)3~100---2~12(10~20)1011109~1012(1014)10101010---1013(1013~1014)10121012(40)3[9]1.2MLC1.2.1COGX7RZ5UZ5VY5VNPO1290020030000700010000030401.2.2[10]EIACOGNPO4X7R200013000Y5VZ5U1.2.3MLCMLC1MLC7m[11]MLC2MLCMLCMLC15MLCFGHMLC2m1.5mMLC2100MLC403MLCMLC3SoufillMLCDSMSoufillMLC260m125m5010nm40%[14]BaTiO3Y5VZ5UX7RNP0SoufillMLCSoufill50%MLCMLCMLCMLC1.2.4MLCMLC6(1)MLC600MLC50012F(2)PbB1B2O320000BaTiO31~210m6mMLC[11](3)1998100mF57505.7mm5.0mm2.5mm[17](4)MLCPd/AgPdPd30/Ag702.5/kg[12]PdPd/AgMLCPd-AgAgNiNiPMNCuOPMNPTCuOMLC7CuON2H2CuO(5)MLCMLC[13]NOVACAPMLC5001000V20kV15153.8mm3.8mm18084.5mm2.0mm18124.5mm3.2mm75659.0mm16.5mm18C0G0.5pF0.15FX7R100pF2.2F1.2URMLCGR5305800.53.15kV4.5mm3.8mm5.6mm6.0mm28.0mm13.2mm4700pF0.33FMLC71512kVMLC0.1FX7R0.5KV1F10F24kV0.5FX7R1.2.5MLCMLC(1)XXSAMAEAVX1990NingHuatChanZ5V8X7R/BX1-2[19]1-2SLAMSLAMLawrenceSLAMSLAM1000MHz100MHz12mmmSLAM[18,19]C9(2)MLC1071981HALT50V125400VDC125150MIL125100VDCSpragueBorisAFT0TtV0Vtt0/ttt0T0V0TTFttTtVtpT0TtK[23])11)(exp()(AF00TTKEVVtant--=EaKK1.3810-23J/K8.610-5eV/KnEan3Ea1eV(3)[24]101.3()[25,26]1.41122.1CdeSC=2-1S2212121221222EVCUWiUSSUeddede====2-2ViE221EDie=2-3VtViVt/Vi=KK1KEDN221e=2-4KK[27]12r2.12.2Eb650V/μmr913Eb100V/μm[28]rEbV/μmV/μm2.2r[29]r212r65000r2003000r7000r50200002.2.1[29]110-1410-15s1015Hz113210-1210-13s1013Hz1013Hz2.2.2[2930]110-210-9s21410-210-9s2.2.3[2731]BaTiO3BaTiO3Ti4PEPsEcBaTiO3Ps2.610-9c/m2Ec0.65V/μmBaTiO3EcBaTiO32-12-1152.3UjEjUjEjhUEjj2-5h460V/μm10-7s102103V/μm[29][30]110V/μm[29]BaTiO3BaTiO316BaTiO32.4PE2EPs=2-62-12-1172-1900dtgCpRpwd1IcIrtg=2-7CpRpCsRsUcUrtgwd2-8CsRsCsRsCpRp1wwdtgPcPatgdPa22CURUPCCw==2UCtgtgPPaC⋅=⋅=dwd2EtgP⋅⋅=dwe2-9detg⋅dtg610-4310-4[3031]dtgBaTiO3tg0.010.02BaTiO3dtgdtg2.5BaTiO3BaTiO318BaTiO3BaTiO32.5.1BaTiO3BaTiO3310m2.5.2BaTiO3[243132]2-2BaTiO3EEcPrBAPPsPs2-2BaTiO3192-3BaTiO32-3aE0BaTiO3Ps02-3bEE2-3cEPsPrPsPr2-3BaTiO32.5.3BaTiO32-4BaTiO3BaTiO3Tc202-4BaTiO3TcT0-[30]BaTiO3rTCurie-Weiss[29]00crTTKee2-10T0BaTiO3TcT01011KBaTiO3K(1.6~1.7)105/02-4BaTiO3BaTiO32.5.4BaTiO3BaTiO3210.10.2mmBaTiO350V/μm0.120.35mm12V/μmBaTiO3[29]BT-20BaTiO320.2MnO211713602hBT-20BaTiO32-5aP3P1P1BaTiO3P22-5b2-5BaTiO3abP1P2P3-22BaTiO31Ba2+Ti4Al3n23ZnOBaTiO3[29]BaTi0.92