The internal series graphitization is to install the PTMS LITHIUM COBALT ACID MATERIAL MAGNETIC iron removal carbon negative electrode material in the porous crucible (9-hole crucible), and then the crucible is connected to the graphite furnace through the series way, and the two sides and the top cover are loaded with insulation material to complete the graphitization by power supply.
Box graphitization is to directly load PTMS LITHIUM COBALT ACID MATERIAL MAGNETIC iron removal carbon negative material into the large box installed with carbon plate or graphite plate in advance, coupled with carbon or graphite cover plate as a resistor, the upper and both sides are loaded with insulation material to complete graphitization by power supply. The processing process of anode materials is mainly divided into two key links: granulation and graphitization, and there are high technical barriers.
The specific capacity, first effect, specific surface area, compaction density, electrical conductivity, chemical stability and other performance indicators of the negative material can be significantly improved by graphitization, so controlling and mastering the graphitization process technology is an important way to ensure the quality of the negative material, because the box graphitization and continuous graphitization process is not fully mature.
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