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1、ElectricCarswithaPromisingFuture:DosetheBatteryofElectricWitnessStumblingBlocks?1.IntroductionComparedwithcarsconsumingfuel,theelectricvehicleenjoysamultitudeofadvantages.Ontheonehand,itisfeaturedbyzeropollutionandnoise,whichmeettherequirementofindividualsduringtheirtransportation.Ontheotherhand,
2、electricvehiclessavetheenergyunderthebackdropofthelimitedoilresources,becauseitcanmakeadvantageofrenewableresourcessuchasfire,windandsolarenergy.Asaninfantcallsforfurtherdevelopment,itisinevitabletobumpintochallengesanddilemmasnowandthen,butdevelopersandgovernmentsshouldnevershyfromorevenabandont
3、hiscuttingedgedomain.Thisessayholdsafaiththatelectricvehicleshaveapromisingfuture.Tocounterwiththeargumentinthecase,thisessayisonthebasisofthebreakthroughanddevelopmentofbatteriesandsomeengagementsofnationstoenhancethecompetitivenessoftheelectricvehicle.2.ElectriccarswithaPromisingFutureInthecase
4、underdiscussion,theauthorclaimsthattheelectriccarhasableakfutureandthemajordefaultoftheelectriccarblockingitsdevelopmentisthebattery,whichisnoteasytorechargeandcheaptoreplaceanewone.Themajorcounterpointofthisessayisthattheauthorfailstomakeanelaborateresearchonthissubjectandhisconclusionisdeprived
5、ofasolidfoundation.Inthisregard,thisessaywillexaminedifferenttypesofbatteriesoftheelectriccars.2.1AnanalysisofthecurrentstatusofbatteriesofelectriccarsElectriccarsaredreadful.Evenafter20yearsoffranticdevelopmenttheyremainimpractical,ridiculouslyexpensiveandnotevenparticularlygreen(Halon,2011).Wec
6、annotdenythatthebarrierforthepopularizationofelectriccarsisthemileagetheycoverafterbeingfullychargedandtheiroriginalprice,andthebottleneckoftheelectricvehicleistheirbattery.Currently,themostfrequentlyusedstoragebatteriesoftheelectricvehiclearelead-acidstoragebatteries,NI-MHbatteries,lithiumionbat
7、teriesandfuelcells(Lewis,Park,&Paolini,2012).Asforlead-acidstoragebatteries,thetechnologyofthiskindofbatteryisrelativelymature,theirfunctionsarereliable,therawmaterialiseasytoget,andthepowerdensitycanbasicallymeetthede
