A self-sacrificing template method is developed to prepare hollow SnO2 microtubes assembled by interconnected nanosheets, which exhibited excellent lithium storage performance.
Nanostructured Na2FePO4F was synthesised by a soft template method, followed by high-energy ball milling (HEBM) and post-heat treatment. The HEBM sample shows excellent sodium storage performance with a discharge capacity of 116 mA h g−1at 0.1 C.