鋅-空電池負(fù)極的研究.pdf

1、重慶大學(xué)碩士學(xué)位論文鋅空電池負(fù)極的研究姓名：謝波申請學(xué)位級別：碩士專業(yè)：物理化學(xué)指導(dǎo)教師：陳昌國2001.6.8重壁叁蘭堡主蘭堡墮苧一——————!!蘭ABSTRACTThezinc—airbatteryiSgreatlyconcernedbecauseofltshighereriergyandIowerpriceHoweverithasnotbeenwidelyusedatpresentpartlyduetOsuchproblemsa

2、scorrosion，passivation，deformationanddendritewhichmakeitdifficultforthebatterypropertiestosatisfytherealneedsTherefore，itwouldbeofimportanttheoreticalsignificanceandpracticalvaluetostudythepreparationsettingofthezincelec

3、trodeandtheinfluencefactorsintherecharginganddischargingprocessBasedontheexaminationofzinc。airbattery3XK500—2，thisessaydiscussestheeffectsonthedischargingpropertiesofthezincelectrodeimposedbyrelevantfactorsAnidealporouss

4、inglezincelectrodeshouldhavethefollowingcharacteristics：mercury—freezincpowerofminordiameterandlittleimpurity；nickel—plmingcoppernetusedascurrent—collectorinthecenteroftheelectrode；reasonabledistancebetweenelectrodesandm

5、aximumcorrespondingareatotheairelectrode；properpressure(11tons)usedintheelectrodepreparationprocess，andpadding(NaN03)，glutinousmatterandadditive(Bi203orMgO)usedaftersoakageandgalvanization；quailtyproportionelectrolyte2：1

6、Furthermore，thesecondaryzincelectrodesshouldhaveaparticularshapeandtheactivemattershouldusesolidgascirculatorypatternwithpowerfulmechanicalintensityThestructureofthecarrierelectrode(current—collector)shouldguaranteethezi

7、nctosedimentatetoanidealextentExperimentsarealsocarriedouttoexploretheeffectsongraphitezinc—airtri—electrodessystemdischargingpropertiesandcyclelifeimposedbytherecharging—dischargingsystemCyclingpropertiesCanbeimprovedun

8、derthecircumstancesofsubsectionconstantcurrentrechargingwithcurrentdensitylessthan10mA／cm2andproperdischargingdepthandendingvoltageEvenSO，therecharging—dischargingpropertiescannotreachthedesiredrequirementsbecauseoffewer

9、cyclingtimes，lowerrechargingdischargingefficiencyandcomplexopermionThebeRerismechanicalconversionforthezincelectrodecanbechangedmorethantentimeswithnochangeofairelectrodeandmembraneiftheelectrolyteiSaddedthreetimesKeywor