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Desing System
The winning paper of the 2022 Charles Hatchett Award demonstrates how niobium can contribute to the potential development of better performing cathode-materials in next-generation lithium-ion batteries.
ACS Energy Lett. 2021, 6, 1377-1382
The research focuses on a specific type of nickel-rich layered metal oxide materials, which have been identified as one of the most promising cathodes for next-generation lithium-ion batteries for electric vehicles. The paper presents experimental work on niobium coating and substitution to enhance the performance of the cathode material LiNi0.8Mn0.1Co0.1O2 (NMC811). A niobium coating reduced the potential losses of capacity currently experienced during the first cycle (10% capacity loss) and improved rate capability. Niobium substitution stabilized the material enabling longer cycling stability, and therefore the retained capacity and lifespan of the cathode. The paper also concludes by explaining the mechanisms and potential for manufacturing scaleup.
The selection process of the Charles Hatchett Award is concerned with technical excellence and originality, but also takes account of the social, economic and environmental advantages of any proposed application of niobium. The paper was praised by the international panel of judges for its potential to make a significant technological impact on other important industrial sectors such as secondary batteries and aerospace industries. The panel also felt that the paper was an exemplar of high-caliber research published in a quality journal.