Conformal Surface Coatings to Enable High Volume Expansion Li‐Ion Anode Materials
作者： Leah A. Riley , Andrew S. Cavanagh , Steven M. George , Yoon Seok Jung , Yanfa Yan
关键词: Nanoparticle 、 Anode 、 Chemical engineering 、 Coating 、 Mineralogy 、 Chemistry 、 Atomic layer deposition 、 Electrode 、 Dielectric spectroscopy 、 Lithium battery 、 Surface coating
摘要: An alumina surface coating is demonstrated to improve electrochemical performance of MoO3 nanoparticles as high capacity/high‐volume expansion anodes for Li‐ion batteries. Thin, conformal surface coatings were grown using atomic layer deposition (ALD) that relies on self‐limiting surface reactions. ALD coatings were tested on both individual nanoparticles and prefabricated electrodes containing conductive additive and binder. The coated and non‐coated materials were characterized using transmission electron microscopy, energy …
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