University of Arizona researchers develop a new method to predict and prevent lithium-ion battery overheating in electric vehicles.
One of the electric vehicles’ most critical safety concerns is keeping their batteries cool, as temperature spikes can lead to dangerous consequences.
“We need to move to green energy,” Goswami said, “but there are safety concerns associated with lithium-ion batteries.” “The temperature in a battery will escalate in an exponential manner and it will cause fire,” Goswami said. An electric vehicle battery pack comprises closely connected battery “cells.” Today’s electric vehicles can have more than 1,000 cells in each battery pack.
To prevent this, the researchers propose using thermal sensors – wrapped around battery cells – that feed historical temperature data into a machine-learning algorithm to predict future temperatures. “If we know the location of the hotspot , we can have some solutions to stop the battery before it reaches that critical stage,” Goswami said.
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