Hanyang University Researchers Find a Battery Flaw That May Reduce Electric Vehicle Lifespans
Hidden Flaw in EV Batteries Uncovered by Hanyang University Researchers
As demand for sustainable electric vehicles (EVs) continues to surge, researchers at Hanyang University, located in South Korea, have unveiled a subtle but significant flaw in cobalt-free, high-nickel cathode batteries, which are pivotal for enhancing electric car performance. The discovery emphasizes the importance of proper battery material handling in ensuring extended battery life, especially in this age of rapidly evolving EV technology.
The research, spearheaded by Professor Jin Ho Bang and PhD Scholar JinHa Shim, highlights how exposure to air when storing precursor materials vital for the production of manganese-coated hybrid batteries can lead to chemical alterations that might ultimately compromise battery longevity. Published on June 23, 2026, in the journal Energy and Environmental Science, this study sheds light on a critical challenge in battery manufacturing that has been largely overlooked.
The focus of the study centers around manganese, a commonly used element for stabilizing high-nickel cathodes. When exposed to air, manganese transforms in unexpected ways under certain manufacturing conditions, triggering oxidation on the surface of particles. This oxidation can create defective regions rich in
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