Hollow Multi‐Shelled Structure with Metal Organic Frameworks Evolutive Heterogeneous Casing for Enhanced Lithium Storage

Herein, we present heterogeneous hollow multi‐shelled structures (HoMSs) by using the metal‐organic frameworks (MOFs) evolutive casing for the first time. Through accurately controlling the evolution of MOFs layer into different heterogeneous casings, we can precisely design HoMSs of SnO₂@Fe₂O₃ (MOF) and SnO₂@FeOx‐C (MOF), which not only retain properties from original SnO₂‐HoMSs, but also inherit genetic structural information from the MOFs. Tested as anode materials in LIBs, SnO₂@Fe₂O₃ (MOF)‐HoMSs demonstrate superior lithium storage capacity and cycling stability to original SnO₂‐HoMSs, which can be attributed to the topological features from the MOFs evolutive casing. Making a sharp contrast to the electrodes of SnO₂@Fe₂O₃ (particle)‐HoMSs fabricated by hydrothermal method, the capacity retention after 100 cycles for the SnO₂@Fe₂O₃ (MOF)‐HoMSs is about eight times higher than that of the SnO₂@Fe₂O₃ (particle)‐HoMS.

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