Lithium ion cell composite anode material and preparing process thereof

[0019] First LiCoO 2 Powder, polyvinylidene fluoride (PVDF), single-walled carbon nanotubes, and carbon black are mixed in a mass ratio of 84:10:3:3, and the mixture is dissolved in N-methylpyrrolidone (NMP) solvent to form slurry, and keep stirring until the slurry is evenly mixed, then coat the slurry on aluminum foil, dry it at 80°C for 2 hours, roll it, punch it, and then put it in a vacuum oven with a pressure of -0.1Mpa and a temperature of 120 °C for 12 hours to obtain the final electrode membrane.

[0021] LiNi 0.8 co 0.2 o 2 Powder, polytetrafluoroethylene (PTFE), carbon black, and multi-walled carbon nanotubes are mixed in a mass ratio of 86:8:3:3, and the mixture is dissolved in N-methylpyrrolidone (NMP) solvent to form a slurry Stir continuously until the slurry is evenly mixed, then coat the slurry on aluminum foil, dry at 80°C for 2 hours, roll and punch, and then put it in a vacuum oven at a pressure of -0.1Mpa and a temperature of 120°C The final electrode membrane can be obtained by drying under certain conditions for 12 hours.

[0023] LiNi 0.7 co 0.3 o 2 Powder, polyvinylidene fluoride (PVDF), and single-walled carbon nanotubes are mixed in a mass ratio of 87:8:5, and the mixture is dissolved in N-methylpyrrolidone (NMP) solvent to form a slurry, and continuously Stir until the slurry is evenly mixed, then coat the slurry on aluminum foil, dry at 80°C for 2 hours, roll and punch, and then dry in a vacuum oven at a pressure of -0.1Mpa and a temperature of 120°C The final electrode membrane can be obtained in 12 hours.