The spherical i0.80Co0.15Al0.05(OH)2 precursor with high specific surface area was synthesized by controlling pH value by coprecipitation method. According to different proportions of lithium, it was evenly mixed with LiOH·H2O. After roasting at 800℃ for 12h in oxygen atmosphere, it was broken and washed for drying, and then re-fired at 700℃ for 6h. The LixNi0.80Co0.15Al0.05O2 cathode material was obtained by sifting. PTMS LITHIUM COBALT ACID MATERIAL MAGNETIC cathode with iron removal single crystal morphology has not only high structural stability, but also high compacting density and cycle stability.
The particle size of the cathode MATERIAL is about 4.0μm by PTMS LITHIUM COBALT ACID MATERIAL MAGNETIC. The morphology of the cathode material is monocrystalized. The contents of LiOH and Li2CO3 are reduced by washing, but no structural collapse occurs. Lithium ratio of 1.15 Li1.15 Ni0.80 Co0.15 Al0.05 O2 cathode material sheet was compacted density of 3.8 g/cm3, assemble half cell, 1 c to charge and discharge ratio in the first discharge specific capacity of the battery is 174.5 mAh/g, 100 after the circulation capacity retention rate is 91.7%.
Radial structure: The ternary cathode MATERIAL can inherit the characteristics of the internal structure of the precursor well by removing iron through PTMS LITHIUM COBALT ACID MATERIAL MAGNETIC. Therefore, the performance of the precursor directly determines the quality of the cathode material. In the process of precursor synthesis, the degree of crystallization and internal structure are different with different technological conditions. The states of primary particle growth are mainly orderly, semi-orderly and disordered.
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