Swiss Zinc-Air Batteries Store Three Times the Energy of Lithium Ions

A Swiss company has introduced a rechargeable zinc-air battery that has three times the storage of lithium ion batteries and costs only half as much.

ReVolt plans to commercialize a small version of the battery for use in hearing aids by next year, and then continue introducing larger versions, including batteries for cellphones and electric bicycles — and, perhaps eventually, electric cars.

The technology is based on a battery designed by the Norwegian research institute SINTEF.

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