Archive: 10/17/2013

Why lithium-ion-batteries fail

Materials in lithium ion battery electrodes expand and contract during charge and discharge. These volume changes drive particle fracture, which shortens battery lifetime. A group of ETH scientists together ...

Oct 17, 2013
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Ukrainians protest Chevron's shale gas plans

Hundreds of Ukrainians protested Thursday against US energy giant Chevron's plans to explore for shale gas, seen as vital to the ex-Soviet country's plans to ease its energy dependence on Russia.

Oct 17, 2013
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