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Old tyres become batteries

Old tyres could be a source of anode carbon for lithium-ion cells, said Oak Ridge National Laboratory in the US. When used in lab cells, after 100 cycles capacity was nearly 390mAh/g “which exceeds the best properties of commercial graphite”, claimed ORNL, attributing this to the micro-structure…

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Freescale goes mobile with wireless charging

Freescale Semiconductor is going big on wireless charging with a number of programmable wireless charging ICs and reference designs. The company said it expects to see a growing number of wireless charging system deployments in offices, hotels, airports and other public spaces. Freescale hopes the programmable chips will offer design…

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How Harvard's 1,024 robot swarm does what it does

Researchers at Harvard University’s school of engineering have been puzzling over autonomous robot collaboration – in particular, how do you get robots that can only sense a short distance to make something big without an all-seeing eye or central control to direct them. And recently they have had some…

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Murata buys silicon RF chip firm for mobile expansion

Murata has agreed to acquire Peregrine Semiconductor, the silicon RF chip maker for $471m. Peregrine manufactures RF chips used in mobile phone front-end circuits using a SOI (silicon on insulator) process technology. Murata has worked with Peregrine in the past on the development and maufacture of RF devices. Now…

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