Embedding Heterostructured ??MnS/MnO Nanoparticles in S?Doped Carbonaceous Porous Framework as High?Performance Anode for Lithium?Ion Batteries

In this work, the synthesis of ?-MnS/MnO/S-doped C micro-rod composites via a simple sulfidation process is demonstrated, starting from Mn-based metal-organic framework. The resulting heterostructured ?-MnS/MnO nanoparticles (8±2 nm) are uniformly embedded into S-doped carbonaceous porous framework with hierarchical micro-/meso-porosity. combination structural and compositional characteristics results in promising electrochemical performance as-obtained as anode materials for lithium-ion batteries, coupled high reversible capacity (940 mAh g?1 at 0.1 A g?1), excellent rate capability well long cycling lifespan 2.0 2000 cycles eventual ?300 g?1. Importantly, situ X-ray diffraction studies clearly reveal mechanistic details lithium storage mechanism, involving multistep conversion processes upon initial lithiation.