New battery design can charge an electric car in 10 minutes

Lithium ion battery design can charge an electric vehicle in 10 minutes
A fast charging battery invented by Chao-Yang Wang Group. Credit: Chao-Yang Wang Group

Ten minutes charging time to add 200 miles of driving range: scientists in the US have claimed a technological breakthrough that could resolve one of the key concerns surrounding all-electric vehicles.

Writing in the journal Joule on Wednesday, researchers at The Pennsylvania State University said that such a speedy charge rate required a to rapidly take in 400 kilowatts of energy.

Current generation vehicles are not capable of this feat as it risks the lithium plating, the formation of metallic lithium around the anode, which would severely deteriorate .

To get around this constraint, the researchers raised the temperature of their experimental battery to 60 degrees Celsius during the charge cycle, then lowered it back down as it was used.

What this does is "limit the battery's exposure to the elevated charge temperature, thus generating a very long cycle life," said senior author Chao-Yang Wang, a at The Pennsylvania State University.

But scaling up the design and bringing it to market may take a decade, Rick Sachleben, a member of the American Chemical Society told AFP.

Makers will need to make sure that rapidly raising the temperature is safe and stable, and doesn't lead to explosions given the phenomenal amount of energy that is being transferred.

"Fast charging is one of the holy grails of ," he said. "It's one of the things that is necessary for them to compete with petroleum-fueled internal combustion engines."

Current generation Tesla vehicles require about 30 minutes for a partial charge.


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Lithium ion battery design can charge an electric vehicle in 10 minutes

More information: techxplore.com/news/2019-10-li … lectric-vehicle.html
Journal information: Joule

© 2019 AFP

Citation: New battery design can charge an electric car in 10 minutes (2019, October 31) retrieved 12 November 2019 from https://phys.org/news/2019-10-battery-electric-car-minutes.html
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