Co2P nanoparticles encapsulated in 3D porous N-doped carbon nanosheet networks as an anode for high-performance sodium-ion batteries

A novel Co₂P-3D PNC composite with Co₂P NPs encapsulated in 3D porous N-doped carbon nanosheet networks was synthesized by a cobalt nitrate-induced PVP-blowing method combined with an in situ phosphidation process. The resultant Co₂P-3D PNC anode delivers high specific capacity, enhanced rate capability, and improved cycling stability.