Accurate construction of a hierarchical nickel–cobalt oxide multishell yolk–shell structure with large and ultrafast lithium storage capability†
Abstract
Novel hierarchical nickel–cobalt oxide microspheres with a multishell yolk–shell structure have been accurately synthesized via a facile and scalable method. The multishell yolk–shell powder shows a significantly improved electrochemical performance in terms of high reversible capacity, good rate capability and excellent cycling performance.