(Zn,mn)s/c Composites for High-Capacity Lithium Storage

In this work, two kinds of bimetallic MOFs materials (Zn-Mn-BTC) with different morphologies are prepared by a simple solvent method at room temperature by changing the amount of PVP. The (Zn,Mn)S/C composites are synthesized by calcining Zn-Mn-BTC as precursor and sulfur powder as sulfur source in high temperature inert atmosphere. The effect of the two morphologies on the lithium storage performance of (Zn,Mn)S/C composites is explored. The (Zn,Mn)S/C composites have good cycle stability and rate performance. The porous carbon formed by carbonization of organic ligand H3BTC can exert its excellent mechanical properties and electrical conductivity, buffer the volume stress in the process of charge-discharge and promote the transfer of electrons.