铝空气燃料电池铝基合金阳极的制备及性能测试

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1、东北大学硕士学位论文铝-空气燃料电池铝基合金阳极的制备及性能测试姓名：舒方霞申请学位级别：硕士专业：有色金属冶金指导教师：王兆文20041201东北大学硕士学位论文ABSTRACTPreparationandperformancetestingofaluminumalloyanodesforaluminum．airfuelbatteriesAbstractAsahi曲energycarrier,Aluminumisidealanodematerialsforbatteries．However,Aluminumdoesn’tsucceedtobeusedinenergyand

2、conversiontechnologyThisisduetotheprotectiveoxidefilmonaluminumsurface，whichcausesadecreaseintheelectrodepotentialandthedelayedactionofpotential．Moreover,theanticorrosiveperformancealsodecreasesconsiderablyunderactivationstate．Thesequestionshavelonglimitedtheearlydevelopmentandapplicationo

3、faluminumanodes．Thegreatadvancesonaluminum—airbatterieswereachievedinrecentyears．Itcanbecontributedtodevelopmentofnewanodicmaterialsandcorrespondentelectrolyteadditives．Inthispaper,A1-Inalloyanodesbasedonpurealuminum(99．99％)andAI—Gaalloyanodesbasedonpurealuminum(99．999％)wereprepared，byaddi

4、ngthealloyingelementsPb、Mn、MgandSnSomebettermeasureswereputforwardtohowtoreducethreekindsoffamiliardefectsduringcastingofaluminumalloys．Theirelectrochemicalbehaviorwereinvestigatedin4MNaOHsolutionthroughtestoftheselfcorrosion，open-circuitpotential，anodicpolarizationandelectrochemicalimpeda

5、ncespectroscopy．ThesurfacemorphologyofaltminumanodesaftercorrosionwereobservedbySEM．Theinfluenceofalloyingelements，temperatureofsolutionandaddingcorrosioninhibitorontheanoclicperformancewerereviewed．Themechanismofactivationanddissolutionofaluminumalloyanodeswerealsoanalyzedinalkalinesoluti

6、on．Itwasfe-tendthattheactivationofaluminumalloyanodesisaffectedbymanyfactors，theamoantofactivatedpointsandthefluidityofmetalsoralloysdepositingonactivatedpointsisthekeyforactivationofaluminumalloyanodes．Themoreactivatedpointsareandthebetterthefluidityofmetalsis，thatistosay,thehighertheacti

7、vationperformanceofactivatedpointsis，theeasierthealuminumalloyanodes—II．东北大学硕士学位论文ABSTRACTareactivated．A1一In—Mg—Sn-Pballoyanodeshowpreferablegeneralperformancewithlowerselfcorrosionrate，morenegativeopencircuitpotentialandsmalleranodicpolarizationin4MNaOHsoluti