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Lithium is touted as the ‘new oil’ but the debate rages if it’s a long-term solution or short-term burst of optimism

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n the rush to build the next generation of hybrid or electric cars, a sobering fact confronts both automakers and governments seeking to lower their reliance on foreign oil: almost half of the world’s lithium, the mineral needed to power the vehicles, is found here in Bolivia — a country that may not be willing to surrender it so easily.

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Battery technologies are improving every day!

Charge capacities could be increased substantially over those of carbon-based anodes.

Silicon nanowires have been investigated as alternatives to the graphite heretofore widely used as an anode material in rechargeable lithium-ion power cells. The theoretical specific charge capacity of graphite, corresponding to the maximum Li content (at a composition of LiC6) is 372 mA•hr/g. In contrast, the theoretical specific charge capacity of Si corresponding to the maximum Li content (at a composition of Li4.4Si) is much greater — 4.2 A•hr/g.

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A team led by Jaephil Cho at Hanyang University in Korea has now developed a new material for anodes, which could clear a path for a new generation of rechargeable batteries. As reported in the journal Angewandte Chemie, their new material involves three-dimensional, highly porous silicon structures.

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Researchers at the University of Bath are helping to develop new rechargeable batteries that could improve hybrid electric cars in the future. Transport is a major energy user and is estimated to be responsible for around 25% of the UK's total carbon emissions.

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A new paper on the Recovery of Minerals and Metals from Geothermal Fluids has some great news for those of us hoping we can green up our drives in 2010 with lithium-powered electric vehicles. There is a real symbiotic relationship between geothermal power and the battery electric car.

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