News tagged with electric vehicles

Mechanical motion rectifier leads to better energy harvesting

(Phys.org) -- Mechanical energy is all around us, whether in the form of a vehicle's vibrations, ocean waves, or vibrating train tracks. However, much of this energy is irregular and oscillatory - for example, road bumps ...

Technology / Engineering

created Apr 25, 2012 | popularity 4.9 / 5 (9) | comments 26 | with audio podcast report

Flexible, paper-based supercapacitor could improve performance of hybrid electric vehicles

(PhysOrg.com) -- Scientists know that using supercapacitors in conjunction with batteries could greatly increase the fuel economy of hybrid electric vehicles (HEVs) due to the fact that supercapacitors can ...

Nanotechnology / Nanophysics

created Mar 20, 2012 | popularity 4.8 / 5 (14) | comments 5 | with audio podcast feature

Rechargeable lithium-sulfur batteries get a boost from graphene

(PhysOrg.com) -- By wrapping tiny sulfur particles in graphene sheets, researchers from Stanford University have synthesized a promising cathode material for rechargeable lithium-sulfur batteries that could ...

Nanotechnology / Nanomaterials

created Jul 13, 2011 | popularity 4.2 / 5 (22) | comments 53 | with audio podcast feature

Lithium-ion battery with new chemistry could power electric vehicles

(PhysOrg.com) -- While car companies race to develop electric and hybrid electric vehicles, one of the biggest challenges they face is finding a suitable energy storage system. Lithium-ion batteries, which ...

Chemistry / Materials Science

created Feb 21, 2011 | popularity 4.6 / 5 (32) | comments 57 | with audio podcast feature

High-performance capacitor could lead to better rechargeable batteries

(PhysOrg.com) -- In order to develop next-generation electric vehicles, solar energy systems, and other clean energy technologies, researchers need an efficient way to store the energy. One of the key energy ...

Nanotechnology / Nanomaterials

created Jan 26, 2011 | popularity 4.7 / 5 (32) | comments 9 | with audio podcast feature

Single-inlet electric vehicle charging to showcase in LA

(Phys.org) -- Big names in global car manufacturers have announced a common method for charging electric vehicles. The companies are in agreement with a common charging technology for use on electric vehicles ...

Technology / Engineering

created May 05, 2012 | popularity 4.5 / 5 (11) | comments 17 | with audio podcast report

Silicon-carbon electrodes snap, swell, don't pop

A study that examines a new type of silicon-carbon nanocomposite electrode reveals details of how they function and how repeated use could wear them down. The study also provides clues to why this material ...

Nanotechnology / Nanomaterials

created Mar 14, 2012 | popularity 5 / 5 (3) | comments 0 | with audio podcast

New method to examine batteries -- MRI from the inside

There is an ever-increasing need for advanced batteries for portable electronics, such as phones, cameras, and music players, but also to power electric vehicles and to facilitate the distribution and storage of energy derived ...

Chemistry / Analytical Chemistry

created Feb 12, 2012 | popularity 4.5 / 5 (10) | comments 0 | with audio podcast

Revealing how a battery material works

Since its discovery 15 years ago, lithium iron phosphate (LiFePO4) has become one of the most promising materials for rechargeable batteries because of its stability, durability, safety and ability to deliver ...

Nanotechnology / Nanomaterials

created Feb 08, 2012 | popularity 5 / 5 (7) | comments 0 | with audio podcast

Wireless power could revolutionize highway transportation, researchers say

A Stanford University research team has designed a high-efficiency charging system that uses magnetic fields to wirelessly transmit large electric currents between metal coils placed several feet apart. The ...

Technology / Energy & Green Tech

created Feb 01, 2012 | popularity 4.3 / 5 (27) | comments 66 | with audio podcast

Qualcomm's HaloIPT tech brings wireless charging for EVs

(PhysOrg.com) -- Qualcomm has demonstrated its new wireless power transmission system for electric vehicles (EVs) at the Consumer Electronics Show (CES). The system, including one pad for power transmitting, ...

Technology / Energy & Green Tech

created Jan 16, 2012 | popularity 4.4 / 5 (7) | comments 5 | with audio podcast report

Study finds benefits of plug-in vehicles depend on battery size

Thinking about buying a new plug-in vehicle? You may want to check the size of its battery first.

Technology / Energy & Green Tech

created Sep 26, 2011 | popularity 3.5 / 5 (4) | comments 1 | with audio podcast

'Boozer' EV sets 1,000 miles-plus record on single charge

(PhysOrg.com) -- An experimental electric vehicle called "Schluckspecht" ("boozer," or "tippler" in German) has set the record for achieving the longest drive in a battery-powered vehicle on a single battery ...

Technology / Energy & Green Tech

created Aug 17, 2011 | popularity 4.8 / 5 (18) | comments 21 | with audio podcast weblog

ECOtality Inc. and car2go team up to bring charging infrastructure to San Diego

ECOtality Inc., a company that works on clean electric transportation and storage technologies, has announced the formation of a partnership with car2go, a car sharing service that is a subsidiary of Daimler ...

Technology / Energy & Green Tech

created Jul 14, 2011 | popularity 5 / 5 (4) | comments 0 | with audio podcast report

$25,000, 350-mile-per-charge electric car could be reality by 2017, DOE says

In an event flanked with all the electric cars that have recently come to market, and a handful of those that are poised for sale later this year, U.S. Energy Secretary Steven Chu and L.A. Mayor Antonio Villaraigosa flipped ...

Technology / Energy & Green Tech

created May 25, 2011 | popularity 5 / 5 (14) | comments 40

Electric vehicle

An electric vehicle (EV), also referred to as an electric drive vehicle, is a vehicle which uses one or more electric motors for propulsion. Depending on the type of vehicle, motion may be provided by wheels or propellers driven by rotary motors, or in the case of tracked vehicles, by linear motors. Electric vehicles can include electric cars, electric trains, electric airplanes, electric boats, electric motorcycles and scooters, and electric spacecraft.

Electric vehicles first came into existence in the mid-19th century, when electricity was among the preferred methods for automobile propulsion, providing a level of comfort and ease of operation that could not be achieved by the gasoline cars of the time. At one time the internal combustion engine (ICE) had completely replaced the electric drive as a propulsion method for automobiles, but electric power has remained commonplace in other vehicle types, such as trains and smaller vehicles of all types.

Electric vehicles are distinct from fossil fuel-powered vehicles in that they can receive their power from a number of sources, including fossil fuels themselves, nuclear power, and renewable sources such as tidal power, solar power, and wind power. This energy is then transmitted to the vehicle through use of overhead lines, wireless energy transfer, or a direct connection through an electrical cable. The electricity may then be stored onboard the vehicle using a battery, flywheel, supercapacitor, or fuel cell. Vehicles making use of engines working on the principle of combustion can usually only derive their energy from a single or a few sources, usually non-renewable fossil fuels.

At the beginning of the 21st century, increased concern over the environmental impact of the petroleum-based transportation infrastructure, along with the spectre of peak oil, led to renewed interest in an electric transportation infrastructure. As such, vehicles which can potentially be powered by renewable energy sources, such as hybrid electric vehicles or pure electric vehicles, are becoming more popular.

For more information about Electric vehicle, read the full article at Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.