掺杂剂为NH4H2PO4，SFAC与掺杂剂质量比为1:4，掺杂煅烧温度

The dopant is NH4H2PO4, the mass ratio of SFAC to dopant is 1: 4, and the doping calcination temperature is 950 ℃. Under these conditions, the prepared N, P-SFAC has a sheet-like porous, honeycomb-like morphology, the pores are mesoporous, the pore size distribution is 5-12 nm, and the specific surface area is greater than pure SFAC, up to 2040.97m2g-1; As a negative electrode material for lithium ion batteries, it has more excellent electrochemical performance than pure SFAC. At a current density of 1A / g, the specific capacity is as high as 2100mAh / g for the first time. After 30 cycles, it is still stable at 861mAh / g, with good Cyclic stability, the first Coulomb efficiency reaches 55.3%, the impedance is small, 48Ω, and has good conductivity

The doping agent is NH4H2PO4, the quality ratio of SFAC to doping agent is 1:4, and the doping calcination temperature is 950 degrees C. Under this condition, the prepared N,P-SFAC has a flaky, hive-like shape, the gap is a mesoporous structure, the aperture is distributed at 5-12nm, the surface area is greater than the pure SFAC, up to 2040.97m2g-1; Better electrochemical performance, at the current density of 1A/g, the first than the capacity of up to 2100mAh/g, after 30 cycles, still stable at 861mAh/g, with good circulation stability, the first Cullen efficiency of 55.3%, small impedance, for 48 o, with good conductivity

The dopant is NH4H2PO4, the mass ratio of SFAC to dopant is 1:4, and the doping calcination temperature is 950 ℃. Under this condition, the prepared n, P-sfac has the shape of flake, porous and honeycomb like. The pore size distribution is 5-12nm. The specific surface area of p-sfac is larger than that of pure SFAC, up to 2040.97m2g-1. As the anode material of lithium-ion battery, p-sfac has better electrochemical performance than pure SFAC. At the current density of 1A / g, the specific capacity of p-sfac is up to 2100mAh / g for the first time. After 30 cycles, it is still stable at 861mah / g, with good performance The first coulomb efficiency is 55.3%, the impedance is small, 48 Ω, and it has good conductivity