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A General Motors-backed company has reportedly discovered a way to increase the storage capacity of lithium-ion batteries.

The Detroit Free Press says GM CEO Dan Akerson revealed Envia Systems has found a way to make lithium-ion batteries hold enough energy to enable a car to travel up to 200 miles (322 km) on a single charge. The executive declined to go into specifics, but said the technology would be a "game charger" and thinks they have a "better than 50-50 chance" to make it happen.

If everything goes according to plan, the technology could appear on electric vehicles within two to four years.

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