Leave a car overnight in extreme cold and you might get an unpleasant surprise in the morning.

All car batteries labor to start an engine during a deep freeze. That’s because chemical reactions needed to produce a current happen more readily when it’s warm.

But researchers in Deyang Qu’s lab have found a fix for the cold-car start – at least for electric vehicles, which use rechargeable lithium-ion batteries to spark ignition. Read the full story here.