MedeA in Publication: Enhancing the Stability and Performance of Ni-Rich Cathode Materials Through Ta Doping: A Combined Theoretical and Experimental Study

Frederike Monsees, Casimir Misiewicz, Mert Dalkilic, DiddoDiddens, and  Andreas Heuer

Physical Chemistry Chemical Physics - Published 11 December 2024

https://pubs.rsc.org/en/content/articlelanding/2025/cp/d4cp03911d

The study by researchers at PowerCo SE in Germany, University of Uppsala in Sweden, and Helmholz Institute Münster in Germany explores the use of tantalum (Ta) doping to improve the performance and stability of LiNi0.80Mn0.1Co0.1O2 (NMC811) cathode materials for high-energy batteries in electric vehicles. Ni-rich cathodes offer high capacity but degrade quickly at higher voltages. By combining theoretical (DFT and cluster expansion models) and experimental (cycling and gas measurements) methods, the researchers found that Ta doping enhances oxygen binding and reduces the formation of oxygen vacancies. This leads to less cracking and better longevity and safety for the cathodes.

Related Post:

https://www.materialsdesign.com/post/medea-in-publication-fundamentals-of-crystalline-evolution-and-properties-of-carbon-nanotube-rei

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