Researchers from Seoul National University of Science and Technology in South Korea have developed a new method to enhance electric vehicle battery performance. Under the leadership of Professor Dongwook Han, the team introduced an innovative dual-engineering approach to improving LNMO (lithium-nickel-manganese oxide) cathodes.
LNMO cathodes are known for their thermal stability and cost efficiency, but their application has been limited due to unwanted side reactions, particularly electrolyte decomposition, which reduces performance over time. The researchers addressed this issue by creating special lithium-ion migration pathways and a protective layer enriched with potassium carbonate to prevent electrolyte degradation.
Test results showed significant improvements: the modified cathodes achieved a discharge capacity of 110 mAh/g while retaining 97% of their capacity after 100 cycles. In contrast, untreated LNMO cathodes had a capacity of 89 mAh/g with 91% retention.
Professor Han emphasized that this technology is not limited to LNMO but can also be applied to commercial cathode materials such as NMC and LFP, paving the way for advancements in electric vehicles and energy storage systems. Follow “Zamin” news on “Telegram”
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