In 2009, IBM researchers set out to develop lithium-air battery technologies capable of powering a household-sized electric car for around 500 miles (800 km) on a single charge.
Rather of using heavy metal oxides, lithium-air batteries borrow oxygen from the air as the vehicle is being driven, producing an air-breathing battery. This outcomes in lighter batteries with high power density that extend the car's range from a single charge.
IBM researchers have effectively demonstrated in the lab
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