The Role of AlF 3  Coatings in Improving Electrochemical Cycling of Li‐Enriched Nickel‐Manganese Oxide Electrodes for Li‐Ion Batteries

Sun, Yang‐Kook; Lee, Min‐Joon; Yoon, Chong Seung; Hassoun, Jusef; Amine, Khalil; Scrosati, Bruno

doi:10.1002/adma.201104106

articleAdvanced MaterialsFeb 24, 2012Closed access

The Role of AlF 3 Coatings in Improving Electrochemical Cycling of Li‐Enriched Nickel‐Manganese Oxide Electrodes for Li‐Ion Batteries

YSYang‐Kook Sun MLMin‐Joon Lee CSChong Seung Yoon JHJusef Hassoun KAKhalil Amine

Sapienza University of Rome · Hanyang University · +1 more institution

PubMed

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Abstract

A Li[Li(0.19)Ni(0.16)Co(0.08)Mn(0.57)]O(2) cathode was coated with AlF(3) on the surface. The AlF(3)-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 AlF(3) coating layer.

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Topics

Keywords

Materials science
Electrochemistry
Electrode
Cathode
Nickel
Manganese
Coating
Spinel

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