Graphene supercapacitors could make batteries obsolete

A battery can hold a lot of energy, but it takes a long time to charge it. A capacitor can be charged very quickly, but doesn’t hold a comparable amount of energy. A graphene supercharger is the best of both: it takes just seconds to charge, yet stores a lot of energy. Imagine being able to charge your spent laptop or phone battery in 30 seconds, and your electric car in a few minutes. Also, unlike batteries, Graphene supercapacitors are non-toxic. The Nobel Prize was awarded to the inventors of Graphene in 2010. Wikipedia defines Graphene as a “substance composed of pure carbon, with atoms arranged in a regular hexagonal pattern similar to graphite, but in a one-atom thick sheet. It is very light, with a 1-square-meter sheet weighing only 0.77 milligrams.” (via Tony Moore at the Boing Boing G+ community )

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Graphene supercapacitors could make batteries obsolete

Tesla releases logs it says prove NYT reviewer faked review

Last week, Tesla’s electric sedan reportedly died during a reviewer’s road trip in cold weather; the firm’s CEO, Elon Musk, said the review was “fake” and promised a data-driven takedown. Today, Musk published the logs and claims they reveal, among other things, that the New York Times’ reviewer drove around in circles in an empty car lot to run down the batteries. “Instead of plugging in the car,” Musk wrote, “He drove in circles for over half a mile in a tiny, 100-space parking lot. When the Model S valiantly refused to die, he eventually plugged it in. On the later legs, it is clear Broder was determined not to be foiled again.”

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Tesla releases logs it says prove NYT reviewer faked review