Graphite iron

Graphite pyrolysis process: put the intermediate material 1 into the reaction kettle, under inert gas atmosphere and a certain pressure, carry out electric heating according to a certain temperature curve, stir at 200-300 ℃ for 1-3h, and then continue to heat to 400-500℃, stir to get the particle size of 10-20mm material, drop the temperature and discharge, that is, the intermediate material. PTMS LITHIUM COBALT ACID MATERIAL MAGNETIC Screen division order: vacuum feed, transport intermediate MATERIAL to machine for mechanical iron removal, 10~20mm MATERIAL regrinding to 6~10 micron particle size MATERIAL, and screen to get intermediate MATERIAL. The material on the screen is transported by the pipe vacuum and returned to the ball mill for ball milling again.

PTMS magnetic separator

The size, distribution and morphology of graphite particles after iron removal affect the performance of anode materials. In general, the smaller the particle, the better the rate performance and cycle life, but the worse the first efficiency and compaction density (which affects the volumetric energy density and specific capacity).

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Vice versa, and reasonable particle size distribution (mixing large particles and small particles, the latter process) can improve the specific capacity of the negative electrode; The morphology of PTMS LITHIUM COBALT ACID MATERIAL MAGNETIC removal particles also has a great influence on the rate and low temperature performance.

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