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Yang-Kook Sun, Min-Joon Lee, Chong S. Yoon, Jusef Hassoun, Khalil Amine and Bruno Scrosati The Role of AlF3 Coatings in Improving Electrochemical Cycling of Li-Enriched Nickel-Manganese Oxide Electrodes for Li-Ion Batteries Advanced Materials 24

Version of Record online: 24 FEB 2012 | DOI: 10.1002/adma.201104106

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A Li[Li0.19Ni0.16Co0.08Mn0.57]O2 cathode was coated with AlF3 on the surface. The AlF3-coating enhanced the overall electrochemical characteristics of the electrode while overcoming the typical shortcomings of lithium-enriched cathodes. This improvement was attributed to the transformation of the initial electrode layer to a spinel phase, induced by the Li chemical leaching effect of the AlF3 coating layer.

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