Recharge Electric Cars by Filling Them at the Pump

refillable batteries could revolutionize electric cars

Refillable Batteries

Electric cars are great — until you run down the battery and have to stop and charge them for a few hours.

That’s why, according to NBC News, certain electric vehicle advocates are extremely excited about so-called “refillable batteries” — lithium ion cells which, when the electrolyte that powers them gets depleted, can be refilled with freshly-charged liquid instead of getting charged in-situ. The result: an electric car that can be refilled at a pump.

Fill ‘Er Up

Some proponents of the technology, which is technically called a “flow battery,” have even suggested that existing filling stations could be retrofitted to charge, dispense and accept electrolyte instead of gasoline.

“You drive 300 miles, drain your tank and pump in new [liquid] — as long as it would take to fill your car with gasoline — and drive off,” said John Cushman, a researcher at Purdue who’s working on liquid battery technology, in an interview with NBC.


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