By exploring the effects of the types of doping agents (NH4) 2HPO4, NH4 3PO4, NH4H2PO4), doping agentand and SFAC quality ratio, calcination temperature and other conditions on the structure, shape and electrochemical properties of SFAC, the best preparation process conditions for N, P-elements mixed with swords hemp carbon (N, P-SFAC) lithium-ion battery negative materials were obtained.
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