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‘Air’ Batteries Could Energize Evs

July 20, 2012

Researchers in the UK say they have made a key step in development of a lithium-air battery, a device that promises three to five times as much energy per unit mass as the existing lithium-ion batteries that we use in our consumer devices and electric vehicles.

Once built, such a battery could allow you to fly cross-country flights with a functioning laptop, or talk for a week without charging your cellphone or even a take a 500-mile journey in a Chevy Volt, for example, instead of the 100 miles it runs today.

The experiment by Peter G. Bruce, professor of chemistry at the University of St. Andrew’s in Scotland, and colleagues was published today in online journal Science Express. It describes a chemical reaction that allows the battery to be recharged without degradation of the battery’s electrode.

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