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Thefirstdemomstrationelectricvehiclesweremadeinthe1830s,andcommercialelectricvehicleswereavailablebytheendofthe19thcentury.Theelectricvehiclehasentereditsthirdcenturyasacommerciallyavailableproductandassuchithasbeenverysuccessful.Today,sconcernsabouttheenvironment,particularlynoiseandexhaustemissions,coupledtonewdevelopmentsinbatteriesandfuelcellsmanyswingthebalancebackinfavorofelectricvehicles.Itisthereforeimportantthattheprinciplesbehindthedesignofelectricvehicles,therelevanttechnologicalandenvironmentissuesarethoroughlyunderstood.Aneconomicallydevelopedcoastalcities,inthisbeautifulcitylifeintheskywas20years.Thewitnesstothesceneofthehistoricmoment,butintheharmonyofthecity,therewasascenenotinharmony,theelectricprevailed.Electriccarsadrillingmotorvehicleswithnon-motorvehicleofthelegalgapsinthenewproduct,theelectricvehicleofthattimethereisindeedtheChinesePeople'sdailyonthemovebroughtsomefacilities.However,thingscannotbejustone,becauseeverythinghastwoaspects.Nowadays,environmentisbecomingworseandworse.oneofthereasonsisaproblemofvehicle.Therearetwomainproblemscausedbyconventionalvehicles.Firstlytheyruintheimmediateenvironmentwithnoiseandpollutions.Secondlytheyburnirreplaceablefossilfuelsproducingcarbondioxidewhichisamajorcauseofglobalwarmingandclimatechange.Infaceofsomeproblemsthoseconventionalvehiclescause,wecandevelopelectricvehicles.Theyareperceivedtoplayapartinredressingthebalance.Therefore,itisimportantthattheenvironmentalimpactofelectricvehiclesisthoroughlyknown.Afterafewyearsofdevelopment,therapidgrowthofelectricvehiclesbecomethefocusofindustryrelatedtopeople'slivelihood,itsrapiddevelopmentspeedisamazing.Thinkingcarefully,theelectriccarindustryinthefolkissopopularforareason:first,lowcarbonenvironmentalprotection,inlinewithnationalenvironmentalprotectionrequirements;second,lightandflexible,makepeopletravelconvenience;third,highperformanceandlowprice,makepeoplelovethem.Theelectricvehiclesadvantagedeterminesthedevelopmentofhigh-speedelectricvehicleindustry.Theelectriccarindustryhasrapiddevelopment,growth,maturity.Worldelectricvehicleresearchtestafterthedevelopmentof20years,hasenteredanewstage,thatis,smallbatchproductionandcommercializationtotheactualapplicationofthemarket.Accordingtoincompletestatistics,thecurrentglobalelectriccarabout13000vehiclesinuse.Atpresent,ourcountryelectriccaroverallisstillintheresearchstageofthekeyunittechniques,andguidedbythemarkettheunitwillbethetechnologyofintegrateddevelopment,meetthevehicleaparticularuserrequirements,throughtheuseoftestingandimprovement,technologyhasmaturedtobecomeofficialproducts.Wewouldsayelectricvehiclestheadvantagesanddisadvantages,andonlythroughtheonlyrevealedanumberofveryseriousproblem.First,letussayelectricvehiclestothepeopleofthebenefits,sectiontoenvironmentalprotection,andfasterthanotherthanmotorvehiclessoon,andlowcostwithoutalicence,drivingeasily,bothyoungandoldsuitablefourpointsmentionedaboveiselectricbicycleinthemindsofmostpeoplerecognizedadvantage.Nowletuslookatelectriccarsthedefectsandwhatotherplaces,electricbatteryshouldnotbepermanent,celldamage,replacementrateishigh,butbatteryrecoveryinthecountryisstillrelativelylow,thisdoesnotfullycomplywithsectiontoenvironmentalprotectionconcepts,andspeedisindeedabicyclefasterthanthemotorvehicleslow