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Charging electric vehicles 5x faster in subfreezing temps
A modified manufacturing process for electric vehicle batteries, developed by University of Michigan engineers, could enable high ranges and fast charging in cold weather, solving problems that are turning potential EV buyers away.
Neil Dasgupta“For the first time, we’ve shown a pathway to simultaneously achieve extreme fast charging at low temperatures, without sacrificing the energy density of the lithium-ion battery.” “That plating prevents the entire electrode from being charged, once again reducing the battery’s energy capacity,” Manoj Jangid, U-M senior research fellow in mechanical engineering, and co-author of the study. “By the synergy between the 3-D architectures and artificial interface, this work can simultaneously address the trilemma of fast charging at low temperature for long-range driving,” said Tae Cho, a recent Ph.D. graduate in mechanical engineering and first author of the study.
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