Machine learning shows that even existing batteries can charge safely and speedily if you treat them right.
. Thanks in part to a machine learning program analyzing vast amounts of lithium-ion battery data, scientists have reportedly found a means to safely and reliably recharge EVs’ power supplies up to 90 percent within just 10 minutes.“Fast charging is the key to increasing consumer confidence and overall adoption of electric vehicles,” Idaho National Laboratory researcher Eric Dufek said in a release. “It would allow vehicle charging to be very similar to filling up at a gas station.
When an EV’s lithium-ion battery charges, the ions migrate from the cathode to the anode. Faster migration means faster charging, but as researchers explained, this currently means lithium ions sometimes don’t fully make over to the anode, resulting in lithium metal buildups that cause battery failure, cathode cracking, and even explosions.
Achieving the charging goal required massive data troves to determine new methods that could quickly restore battery charges without doing significant, often irreparable damage to the battery itself. Asexplained last week, Dufek and colleagues designed an algorithm that analyzed somewhere between 20,000 and 30,000 data points from various kinds of lithium-ion batteries to determine the most efficient and safe recharging method, which they then tested on real batteries.
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