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U Maryland team devises new method to stabilize high-capacity Si anodes for Li-ion batteries: interfacial oxygen

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Researchers at the University of Maryland have improved the cycle life of silicon/carbon matrix-composite electrodes by 300%, even at mass loadings, solely by the chemical tailoring of the interface between the silicon and the carbon with atomic oxygen. 10 times that of graphite anodes used in lithium ion batteries. Click to enlarge.

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Toyota introduces 2012 Prius Plug-in Hybrid

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kWh Li-ion pack enabling an electric range of up to 15 miles (24 km) at speeds of up to 62 mph (100 km/h), according to Toyota. The Li-ion pack is almost half the weight of the earlier pack, and so much more compact that the dimensions of the plug-in Prius are the same as those of the iconic liftback—i.e.,

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JCESR team identifies new mechanism hampering Mg-ion batteries; unforeseen reactivity

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Rechargeable magnesium batteries are of great interest as potential “beyond Li-ion” systems for extended electric vehicle range. Because magnesium is divalent, it can displace double the charge per ion (i.e., Mg 2+ rather than Li + ). As an element, magnesium is more abundant than lithium, and more stable.

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Kia unveils Soul EV at Chicago Auto Show

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The Soul EV is equipped with a 27kWh, air-cooled, 200 Wh/kg Li-ion polymer battery pack located beneath the floor. The 360V 96-cell lithium-ion polymer battery has been engineered for high capacity, thermal stability and safety. Internal testing and evaluation showed results exceeding 100 miles in some instances.

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