lithium nickel cobalt manganate (NCM523)-Lithium-ion battery ternary cathode material
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The ternary cathode materials contain nickel (Ni), cobalt (Co) and manganese (Mn). The main valence states of the three elements are + 2, + 3 and + 4. Among the three elements, nickel and cobalt are active metals, while Mn is inactive. Generally speaking, the higher the content of active metal, the larger the battery capacity. However, if the content of Ni is too high, it will cause Ni2 + to occupy the position of Li +, and increase the battery capacity The results show that Co can inhibit the mixed discharge of cations and stabilize the layered structure of the material; Mn, as an inactive metal, does not participate in the electrochemical reaction and mainly plays the role of stabilizing the reaction, improving the safety and reducing the cost, but the excessive manganese content will destroy the layered structure of the material and reduce the specific capacity of the material.
The ratio of Ni, Co and Mn in the ternary cathode material can be adjusted in a certain range, and its performance will change with the different ratio of Ni, Co and Mn. The ternary cathode material can be expressed as linixcoymnzo2, where x + y + Z = 1. According to the different molar ratio (x ∶ y ∶ Z ratio) of the three elements, they are called different systems. The system with the molar ratio of 5 ∶ 2 ∶ 3 is called 523 system.
523 type ternary material is the largest amount of ternary material at present, because it has high specific capacity and thermal stability, and the maturity and stability of the process are constantly improving, and its market share is rapidly expanding. 523 ternary material pursues high volume, high specific capacity (high compaction density), followed by the balance between cycle performance, rate performance, thermal stability and self discharge. As a power battery, it can greatly improve the endurance of electric tools.Product Details
Main features of AFT-5C: the product has strong applicability, good versatility, high power density and excellent cycle performance. It can be widely used in all kinds of steel shell, aluminum shell and polymer battery products.
Application field: suitable for Pt, PHEV, EV and other fieldsPhysical indexes Item Unit Specification Typical value Appearance / Black powder / Tap density g/cm3 ≥2.00 2.12 D10 μm ≥3.00 5.12 D50 μm 8.50±2.00 8.57 D90 μm ≤18.00 14.36 Specific surface area m2/g 0.45±0.20 0.4510 H2O wt% ≤0.050 0.019 Electrochemical performance Specific capacity mAh/g ≥150 / Chemical indexes Li wt% 7.40±0.20 7.39 Ni wt% 30.00±1.00 30.05 Co wt% 11.85±1.00 11.86 Mn wt% 16.70±1.00 16.68 OH- wt% ≤0.20 0.0762 Cu ppm ≤30 10 Ca ppm ≤200 35 Mg ppm ≤200 22 Na ppm ≤500 119 Fe ppm ≤100 6 pH / 11.00~11.80 11.46 Magnetic foreign body
（Fe+Cr+Zn）ppm ≤0.100 0.024 Crystal structure Micromorphology / Spherical or quasi spherical Crystal structure / No impurity peak SEM
Particle size distribution
XRD
Matters needing attention
Vacuum sealed packaging, placed in a cool and dry place, shelf life of one year, storage environment clean, normal temperature, cool and dry; use immediately after opening the packaging bag, can not be used immediately, sealed after storage, to prevent moisture absorption.
Delivery Time:In Stock
