Using Simple Spray Pyrolysis to Prepare Yolk-Shell-Structured ZnO-Mn3O4 Systems with the Optimum Composition for Superior Electrochemical Properties.

A spray-pyrolysis process is introduced as an effective tool for the preparation of yolk-shell-structured materials with electrochemical properties suitable for anode materials in Li-ion batteries (LIBs). Yolk-shell-structured ZnO-Mn3O4 systems with various molar ratios of the Zn and Mn components are prepared. The yolk-shell-structured ZnO-Mn3O4 powders with a molar ratio of 1:1 of the Zn and Mn components are shown to have high capacities and good cycling performances. [ABSTRACT FROM AUTHOR]