Tesla patents next-gen battery that will last 400 miles

One common problem with electric cars is there is a lack of charging stations to charge the cars on long drives. “After you run out of battery power, a small four-cylinder engine runs a generator to extend the range of the car for another 300 or 400 miles, and you can always just keep putting more gas into it to keep on going,” writes Evan Ackerman.

 

 

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PolyPlus Developing Waterproof Lithium-Air Batteries

PolyPlus Developing Waterproof Lithium-Air Batteries

A prototype battery made by PolyPlus uses lithium metal as the anode and salt water as the cathode to power an LED. 

A company based in Berkeley, CA, is developing lightweight, high-energy batteries that can use the surrounding air as a cathode. PolyPlus is partnering with a manufacturing firm to develop single-use lithium metal-air batteries for the government, and it expects these batteries to be on the market within a few years. The company also has rechargeable lithium metal-air batteries in the early stages of development that could eventually power electric vehicles that can go for longer in between charges.

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