KIEL, Germany - In the global shift towards electric mobility, the time required for battery charging continues to be a significant obstacle for electric vehicles (EVs). Today’s lithium-ion batteries require between 20 and 30 minutes to charge from 20% to 80%, but a full charge often takes much longer, and high-speed charging wears down battery cells over time.
However, a new international study by Kiel University suggests lithium-sulfur batteries (LSBs) may soon rewrite these limitations, Kapil Kajal writes for Interesting Engineering. Continue reading original article.
The Military & Aerospace Electronics take:
9 July 2025 - A new international study led by Kiel University suggests lithium-sulfur batteries (LSBs) could significantly improve electric vehicle (EV) performance by enabling faster charging, higher energy density, and better safety than current lithium-ion technology. Published in Advanced Energy Materials, the research outlines how LSBs could reduce charging times to under 30 minutes -potentially as low as 12 minutes - while offering up to 10 times the energy density of today’s batteries.
However, key challenges remain. Sulfur’s poor conductivity requires the use of additional carbon materials, adding weight and complexity. The sulfur cathode also undergoes extreme expansion during charging, while the lithium anode risks dangerous dendrite formation. Additionally, the “shuttle effect” caused by migrating lithium polysulfides can reduce efficiency and battery life.
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Jamie Whitney, Senior Editor
Military + Aerospace Electronics
