What happens to a resonant wireless power transfer system in the presence of complex electromagnetic environments, such as metal plates? A team of researchers explored the influences at play in this type of situation, and ...
Energy & Green Tech
Jul 31, 2013
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(Phys.org)—The world of rechargeable batteries is full of trade-offs. While lithium-ion (Li-ion) batteries are currently the most commercially successful, their low energy density doesn't allow for a long driving range. ...
Drivers of petrol and diesel cars are usually aware that driving at high speed, harsh acceleration and hard braking all contribute to lowering their fuel economy. Scientists can readily explain in terms of the thermodynamics ...
Energy & Green Tech
Dec 21, 2012
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The Fiat 500 is getting bigger and going electric.
Energy & Green Tech
Nov 28, 2012
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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 long-term goal ...
Energy & Green Tech
Feb 1, 2012
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Millions of dollars are being spent on developing electric vehicles. Electric vehicles, powered by hydrogen fuel cells, provide the demanded driving range and low environmental impact. However, hydrogen fuel cell powered ...
Materials Science
Jan 11, 2012
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(PhysOrg.com) -- Battery life and driving range are two sticky phrases in discussions about why EVs have yet to hit mainstream use. Drivers still feel skittish about the idea of setting out on longer trips on batteries lasting ...
(PhysOrg.com) -- In what appears to be an increasingly crowded market, Japanese car maker Mitsubishi Motors has added two new versions of its i-MiEV model all-electric vehicle. Both are pint-sized sub-compacts, as opposed ...
(PhysOrg.com) -- Driving hydrogen fueled SUVs for 431 miles per fill-up is no longer a California dream. Researchers from NREL and Toyota recently completed a 331 mile round trip drive between Torrance and San Diego in two ...
Energy & Green Tech
Nov 17, 2009
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