Machine Learning in Charge: Improving Battery Safety for Electric Vehicles

Lithium-ion batteries don’t last forever. They wear out and eventually die, with operating conditions sometimes speeding up the process.

Fast charging could recharge an electric vehicle battery in minutes rather than hours, but doing so can rapidly age a battery. The key word, though, is “can.” Batteries react differently to fast charging because of design, material and manufacturing variations. Early detection and classification of battery aging during fast charging would benefit researchers studying how to improve batteries, battery makers, and eventually the public by helping to ensure batteries last and improving battery safety.

Now, a new technique developed by Idaho National Laboratory (INL) researchers makes it easier to spot possible battery troubles earlier than ever before. INL scientists described their work in a recent paper published by the journal Cell Reports Physical Science.

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