▎ 摘　　要

NOVELTY - A porous carbon-doped graphene / iron oxide nanofiber lithium battery cathodematerial comprises carbon, ferroferric oxide and graphene at ratio of 65: 20-40: 1-10, with porosity porosity of 500-1000 cm3g. USE - Graphite alkene doped porous carbon/ferroferric oxide nanometer fiber lithium battery cathode material. ADVANTAGE - The material improves electrochemical performance, increases atio capacity of battery, and improves charging and discharging efficiency to the battery. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a method for preparing graphite alkene doped porous carbon/ferroferric oxide nanometer fiber lithium battery cathode material, which involves taking oxidation graphite alkene into N-N in dimethylformamide, dispersing in 5-10h, adding polyacrylonitrile powder, polymethyl methacrylate powder and iron salt, stirring in 3-6h at 80 degrees C, to obtain electrostatic spinning solution, where mass fraction is 6 %-10 %, quality percentage of polymethyl methacrylate is 5 %-10 %, quality percentage of iron salt is 20 %-30 %, obtaining the electrostatic spinning liquid and transfer into injector, performing electrostatic spinning, where spinning voltage is 10-30kv, the spinning flow quantity is 0.1-2.0ml/h, the distance between needle tip and receiving plate is 10-30cm, preparing the nano fiber by obtain pre-oxidizing at 200-300 degrees C in air atmosphere, transferring to carbonizing furnace at lower argon gas/nitrogen protection, with speed of 2-10 degrees C degrees centigrade per minute to 500-1000 degrees C in 5-10h, obtaining porous carbon doped graphite alkene/ferroferric oxide nanometer fiber, obtaining porous nanometer fiber, adhering polyvinylidene fluoride (PVDE)/acetylene black binder on copper foil, then transfer to the oven box and heating at 100-200 degrees C condition lower dry in 2h, to obtain lithium battery electrode material, where mass ratio of bonding agent acetylene black and polyvinylidene fluoride (PVDE) is 1: 1.