SAN DIEGO – Electric Vehicles could soon perform better in both extremely hot and cold climates thanks to a new design of energy-dense lithium-ion batteries.
The study was conducted by nanoengineer Professor Zheng Chen of the University of California San Diego and his colleagues. Prof. Chen said:
“You need high temperature operation in areas where the ambient temperature can reach triple digits and the roads get even hotter. In electric vehicles, the battery packs are typically under the floor, close to these hot roads. Also, batteries warm up just from having a current run through during operation. If the batteries cannot tolerate this warmup at high temperature, their performance will quickly degrade.”
In tests, the team found their prototype batteries retained 87.5 and 115.9 percent of their energy capacity at -40 and 50F respectively.
Furthermore, the batteries also had high so-called Electric Vehicles could soon perform better in both extremely hot and cold climates thanks to a new design of energy-dense lithium-ion batteries. of 98.2 and 98.7 percent at these temperatures — meaning they can go through more charge–discharge cycles before they stop working.
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