Automotive

China auto sales off 22.4% in first half of 2020

China's auto sales rose 1.8% in June over a year earlier but fell by double digits for the first half of 2020 after the country shut down to fight the coronavirus, an industry group reported Friday.

Energy & Green Tech

Building a better battery, faster

Battery experts at PNNL and elsewhere focus on developing rechargeable lithium-metal batteries because of their high energy density. Lithium-metal batteries have the potential to double the energy of lithium-ion batteries ...

Automotive

Tesla 2Q deliveries rise over 1Q despite factory shutdown

Tesla says it delivered more electric vehicles worldwide in the second quarter than it did in the first. The increase came even though coronavirus restrictions forced it to shut down its only U.S. factory for much of the ...

Automotive

Citroen unveils new hatchback as virus pushes event online

PSA Group unveiled one of its most important new models Tuesday with 20 people physically present and 2,600 watching online - a marketing configuration that the coronavirus seems likely to accelerate across the industry now ...

Energy & Green Tech

The electric future of autonomous vehicles

Autonomous vehicles come at a cost: increased energy use. Some suggest that these increased power needs are significant enough to drastically reduce vehicle range, eliminating the possibility of electric autonomous vehicles. ...

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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.

This text uses material from Wikipedia, licensed under CC BY-SA