Small particles have larger specific surface area, more channels and shorter paths for lithium ion migration, good rate performance, and large particles have high compaction density and large capacity. How to take the advantages of both large and small particles into account, while achieving high capacity and high magnification, the answer is to take secondary granulation and PTMS LITHIUM COBALT ACID MATERIAL MAGNETIC. Using small particle petroleum coke, needle coke and other base materials, by adding coating materials and additives, under the condition of high temperature stirring, by controlling the material proportion, temperature rise curve and stirring speed, the small particle base materials can be granulated twice, and larger particle size products can be obtained.
Compared with products of the same particle size, PTMS LITHIUM COBALT ACID MATERIAL MAGNETIC removal can effectively improve the liquid retention performance of the MATERIAL and reduce the expansion coefficient of the MATERIAL (there is a concave hole between small particles and small particles), shorten the diffusion path of LITHIUM ion, improve the rate performance. At the same time, it can also improve the high and low temperature performance and cycle performance of the material.
PTMS LITHIUM COBALT ACID MATERIAL MAGNETIC removal process barrier is high, coating materials and additives, and easy to appear uneven coating or coating off problems, or coating effect is not good, is an important process of high-end artificial graphite.
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