Electric Vehicles (EVs)


Electric vehicles (EVs) are propelled by an electric motor (or motors) powered by rechargeable battery packs. Electric motors have several advantages over internal combustion engines (ICEs):
  • Energy efficient. Electric motors convert 75% of the chemical energy from the batteries to power the wheels-internal combustion engines (ICEs) only convert 20% of the energy stored in gasoline.
  • Environmentally friendly. EVs emit no tailpipe pollutants, although the power plant producing the electricity may emit them. Electricity from nuclear-, hydro-, solar-, or wind-powered plants causes no air pollutants.
  • Reduce energy dependence. Electricity is a domestic energy source.
  • Performance benefits. Electric motors provide quiet, smooth operation and stronger acceleration and require less maintenance than ICEs.
The Down Side: Batteries
EVs face significant battery-related challenges:
  • Driving range. Most EVs can only go 150 miles (or less) before recharging-gasoline vehicles can go over 300 miles before refueling.
  • Recharge time. Fully recharging the battery pack can take 4 to 8 hours.
  • Battery cost: The large battery packs are expensive and usually must be replaced one or more times.
  • Bulk & weight: Battery packs are heavy and take up considerable vehicle space.
Researchers are working on improved battery technologies to increase driving range and decrease recharging time, replacement frequency, weight, and cost. These factors will ultimately determine the future of EVs.

Information Articles News Links
other news:
01/26/2015 08:00 AM
Symbio FCell Launches the First 5 Hydrogen-Powered Utility Vehicles out of a 40 Fleet in La Manche (France)
In a major step towards the commercial deployment of zero-emission hydrogen-powered electric vehicles, Symbio FCell has put on the road the first five Renault Kangoo ZE Light commercial vehicles powered by its hydrogen Fuel Cell Range-Extender, as part of a full fleet project led by the Conseil Général de la Manche which will rapidly deploy 40 vehicles.
01/13/2015 05:15 PM
Demand from Electric Vehicles Will Stimulate the Growth of the Global Lithium Iron Phosphate Battery Market by 2019 ...
Thanks to increasing demand from electric vehicles, the Global Lithium Iron Phosphate Battery Market is expected to grow at a CAGR of 20 percent from 2014-2019, says research firm
01/14/2015 07:53 PM
Global Micro Electric Vehicles Market 2014-2018
      LONDON, Jan. 14, 2015 /PRNewswire/ -- About Micro Electric Vehicles Micro electric vehicles are driven by electric battery propulsion with a power rating of 4-10 KWh and are generally two to four-seater ...
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EVs ON WIKIPEDIA  ·  EVs HISTORY ·  U.S. Patent 1,017,198 , E. W. Bender, Electric Motor vehicle

source: www.fueleconomy.gov



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