Lithium ion anode material and preparation method thereof
A cathode material, lithium ion technology, applied in the field of cathode material preparation, can solve the problems of complex manufacturing process and high cost, and achieve the effects of good electrical conductivity, low cost, and simple and easy production process
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[0014] The preparation steps of the lithium ion cathode material and the preparation method thereof are as follows:
[0015] (1) Select strong lithium iron phosphate as the positive electrode active material, graphite or carbon black of uniform material as the conductive agent, and polytetrafluoroethylene as the binder;
[0016] (2) Mix the spare materials in step (1) according to the ratio of 85% of the positive electrode active material and 10% of the conductive agent into a ball mill, mix and grind for 2 hours to form a positive electrode powder;
[0017] (3) Put 5% of the binder into the mixer, add dimethylamide as a solvent, and the weight of dimethylamide is 80% of the total weight of the positive electrode active material, conductive agent and binder. Heat and stir at a temperature of ℃ to fully dissolve the binder, then add the positive electrode powder and stir for 2 hours to make it fully and uniformly mixed to form a positive electrode slurry;
[0018] (3) Coat the pre...
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