LAUSR

MnSe with high theoretical capacity and reversibility is considered as promising sodium ion battery anode material. In this study, MnSe nanoparticles embedded in 1D carbon nanofibers (MnSe-NC) are successfully prepared via facile electrospinning and subsequent selenization. MnSe dispersed in carbon framework, can effectively protect MnSe to avoid agglomeration and accommodate volume variation in conversion reaction between MnSe and Na+ to guarantee cycling stability. The 1D fiber structure can increase electrode-electrolyte contact area to shorten Na+ diffusion path and facilitate Na+ transfer. According to the kinetic analysis, MnSe-NC is the surface pseudocapacitive-controlled process with promising rate capability. Impressively, MnSe-NC anode in sodium ion full cells are investigated by pairing with Na3V2(PO4)2@rGO cathode, which exhibits reversible capacity of 195 mAh g-1 at 0.1 A g-1.