Metal Oxide Hollow Nanostructures for Lithium‐ion Batteries

TLDR

Metal oxide hollow structures have attracted attention for their promising applications across many fields, especially as LIB electrodes offering high capacity, rate capability, and cycling stability. This review summarizes recent synthesis of metal oxide hollow nanostructures and their LIB applications, aiming to clarify how nanostructure engineering affects electrochemical performance. The article focuses on binary and complex metal oxides (SnO₂, TiO₂, Fe₂O₃, Co₃O₄), discussing synthesis methods, shape and size control, and structural complexity to evaluate their impact on LIB performance.

Abstract

Metal oxide hollow structures have received great attention because of their many promising applications in a wide range of fields. As electrode materials for lithium-ion batteries (LIBs), metal oxide hollow structures provide high specific capacity, superior rate capability, and improved cycling performance. In this Research News, we summarize the recent research activities in the synthesis of metal oxide hollow nanostructures with controlled shape, size,composition, and structural complexity, as well as their applications in LIBs. By focusing on hollow structures of some binary metal oxides (such as SnO 2 ,TiO 2 , Fe 2 O 3 , Co 3 O 4 ) and complex metal oxides, we seek to provide some rational understanding on the effect of nanostructure engineering on the electrochemical performance of the active materials. It is thus anticipated that this article will shed some light on the development of advanced electrode materials for next-generation LIBs.