Abstract: Phosphorus-doped phenolic resin pyrolysis carbon was prepared by low temperature (600～1600℃)pyrolysis of thermoplastic phenolic resin containing
different amounts of phosphorus pentoxide after curing. Elemental composition and BET surface area of pyrolysis carbon were investigated. X-ray diffraction
pattern and constant-current charge-discharge properties of pyrolysis carbon were studied. The results show that the pyrolysis carbon microstructure is out of order
with the increasing of content phosphorus pentoxide, and BET surface area decreases firstly and then increases, otherwise, the discharge reversible capacity increases
firstly and then decreases. The discharge reversible capacity of pyrolytic carbon containing 9wt% phosphorus pentoxide is 528mA·h·g^-1 which is
higher than that of non-phosphorus doped phenolic pyrolysis resin carbon (230 mA·h·g^-1)

Key words: phenolic resin carbon, phosphorus-doped, lithium ion battery, carbon anode