Lithium battery anode material artificial graphite high energy density
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AFT-AGNL is a high-capacity, high-pressure, long-cycle artificial graphite. After 3200℃ ultra-high temperature graphitization, the graphite purity is improved and the impurity content is reduced, and then it is processed by pore making and surface modification technology. , Has the characteristics of high gram capacity, high compaction density of pole piece (compact density of pole piece is between 1.7～1.75 g/cm3), small expansion of pole piece, long cycle, high first-time efficiency, etc., suitable for power EV, HEV Various types of lithium-ion batteries in the fields of, energy storage, 3C digital, etc.
Item Unit Specification Typical value Instrument/Method Particle Size D10 μm ≥6.0 6.9 Laser particle size analyzer/MASTERSIZER2000
Particle size analysis-Laser diffraction methodD50 16.0±1.5 16.3 D90 ≤35.0 32.4 Dmax ≤55.0 52.7 Tap Density g/cm3 1.00±0.1 1.02 Tap Density Meter/DAT-3
Metallic powdersdetermination of tap densitySurface Area m2/g 1.5±0.5 1.6 American Quantachrome NOVA-4000E Determination of the specific surface area of solids by gas adsorption using the BET method Graphitization Degree % ≥93.5 94.5 PW3040/60 XRD diffractometer of PANalytical B.V., Netherlands; X-ray diffraction analysis method Discharge Capacity mAh/g 355.0±2.5 357.2 Half battery test, American Arbin multi-channel battery test system, Germany Braun company labstar (1200 / 780) glove box 0.6ma to 5.0mV, 0.3mA to 5.0mV; 0.6ma to 2.0V First Discharge Efficiency % ≥92.0 93.1 Fixed carbon content % ≥99. 95 99.97 Box type resistance furnace
Method for chemical analysis of graphiteMoisture Content % ≤0.1 0.02 Coulometric titration moisture meter determination of moisture content in chemical products Karl Fischer method Ash Content % ≤0.1 0.01 Weight course, sample size 2g, muffle furnace 800 degrees, 5-6 hours to constant weight Scanning electron micrograph
Particle size distribution
First charge and discharge curve
XRD
Precautions for product use
a) Ensure that the capacity of the negative electrode per unit area is greater than or equal to the capacity of the positive electrode per unit area to avoid lithium evolution during the charging process;
b) Ensure that there is a good interface between the isolation membrane and the electrode;
c) The areal density and compaction density of the electrode will affect the rate capacity and performance.
d) The mixing performance of this material is very special. After adding SBR, it should not be stirred quickly for a long time, otherwise the viscosity will increase sharply and it will not be able to be coated. If the slurry needs to be placed for a long time, only the revolution, not the rotation stirring. If you need to adjust the viscosity, do not stir quickly after adding water, otherwise the slurry cannot be used.
e) Since the product has many micropores, it is easy to absorb more solvents and adhesives. Please ensure the amount of adhesive and allow the pole pieces to be dried thoroughly.
Features: The compaction density of the pole piece is controlled between 1.7~1.75 g/cm3, which is mainly suitable for water-based systems.Storage Condition
1、Suggest storage temperature and humidity controlled below 40 ℃ and 60 %RH, respectively, for brandnew; After opening, please use it up as soon as possible.
2、After opening for 1 hour, it is a natural phenomenon for moisture regain, implying that moisture content of powder could be increased to 3000 ppm. Suggest drying it again before use.
Delivery Time:In Stock
