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论文类型：期刊论文

发表时间：2014-11-17

发表刊物：ANGEWANDTE CHEMIE-INTERNATIONAL EDITION

收录刊物：SCIE、EI、Scopus

卷号：53

期号：47

页面范围：12776-12780

ISSN号：1433-7851

关键字：Al2O3 coating; core-shell structure; layer thickness; lithium-ion batteries

摘要：Forming uniform metal oxide nanocoatings is a well-known challenge in the construction of core-shell type nano-materials. Herein, by using buffer solution as a specific reaction medium, we demonstrate the possibility to grow thin nano-shells of metal oxides, typically Al2O3, on different kinds of core materials, forming a uniform surface-coating layer with thicknesses achieving one nanometer precision. The application of this methodology for the surface modification of LiCoO2 shows that a thin nanoshell of Al2O3 can be readily tuned on the surface for an optimized battery performance.