Maryland researchers
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University of Maryland team reports electrolyte change that let a test cell charge to 80% in 12.8 minutes
Researchers at the University of Maryland, led by Chang-Xin Zhao in the laboratory of Distinguished University Professor Chunsheng Wang, changed how solvent molecules interact with lithium ions in a battery electrolyte. A test cell using the approach charged to 80% in 12.8 minutes, according to Interesting Engineering, as reported by The Cool Down. The work targets a bottleneck in which solvent is carried away from the porous positive electrode during fast charging and cannot return quickly enough to keep it replenished.
Why it matters
This is laboratory stage work on a single test cell, so it does not change charger specification or procurement today. It does indicate that battery chemistry, not only charger power, limits charge speed, which is worth tracking when planning for future vehicle acceptance rates at high power sites.