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New Battery Design Could Charge An Electric Car In Just 10 Minutes

New Battery Design Could Charge An Electric Car In Just 10 Minutes
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Scientists in the U.S. have reported a technological breakthrough that could resolve one of the key issues surrounding all-electric vehicles, mentioning just 10 minutes of charging time could add 200 miles (320 km) of driving range.
 
Writing in the journal Joule on Wednesday, researchers at Pennsylvania State University said that such a speedy charge rate called for a battery to speedily take in 400 kilowatts of energy. Current-generation vehicles are not capable of this feat because it risks the lithium plating, the formation of metallic lithium around the anode, which would badly deteriorate battery life.
 
To go around this constraint, the researchers raised the temperature of their experimental battery to 60 degrees Celsius (140 Fahrenheit) in the course of 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 mechanical engineer at The Pennsylvania State University.
 
But turning up the design and bringing it to market could possibly take a decade, said Rick Sachleben, a member of the American Chemical Society. Makers will need to ensure that speedily raising the temperature is safe and stable, and does not lead to explosions given the phenomenal amount of energy that is being transferred.
 
“Fast charging is one of the holy grails of electric vehicles,” he said. “It’s one of the things that is necessary for them to compete with petroleum-fueled internal combustion engines.”
 
The current generation of Tesla vehicles require up to 30 minutes for a partial charge. One of the inventors of rechargeable lithium-ion batteries who was granted a Nobel Prize in chemistry in October, M. Stanley Whittingham, says ongoing research will continue to make the batteries cheaper, safer and with greater energy density. Further improvements to the technology will likely prop up efforts to overcome climate change by enabling greater use of renewable-energy sources, Whittingham said.
 
He stated Lithium-ion batteries will continue to influence in smart phones and electric vehicles for at least the next 10 years, “because there is nothing really on the horizon,” though Toyota Motor Corp. and American companies are working on solid-state batteries. It is not clear yet whether you will get a decent amount of power” from such batteries, he added. “They may work for things like iPhones initially, but there are some big questions before they are used in larger-scale systems.
 
Still, Whittingham said, if you look at the sellers of electricity, they don’t particularly want them to be charged very fast.”
 

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