1. Product Core

Raw Material for Artificial Graphite Anodes is a functional powder material prepared by precision processes such as pre-carbonization, crushing, purification, and grading, with high-purity needle coke, petroleum coke, or coal-based coke as the core substrate. It is a key precursor for the production of artificial graphite negative electrodes for lithium batteries. Its core value lies in providing high-quality substrates for subsequent graphitization processing through precise regulation of chemical composition and physical structure, ultimately endowing artificial graphite negative electrodes with excellent conductivity, cycling stability, and rate performance, meeting the core requirements of lithium batteries for "high capacity, long life, and high safety".

2. Core Features of the Product

2.1 High Carbon Content and Low Impurities

Fixed carbon content ≥ 98.5% (high-end power grade specifications ≥ 99.5%), ash content ≤ 0.3% (total content of metal impurities such as Fe, Ni, Cu ≤ 50ppm), sulfur content ≤ 0.1%, nitrogen content ≤ 0.2%; The low impurity characteristic can avoid side reactions during battery cycling, reduce electrolyte decomposition, and ensure the stability of the negative electrode interface.

2.2 Optimized Particle Morphology and Particle Size Distribution

For Raw Material for Artificial Graphite Anodes, the particles are spherical or irregular in shape, with a smooth surface and no sharp edges (to avoid scratching the substrate during electrode coating); its particle size distribution is concentrated (D50=10-50μm, Span=0.8-1.2), and can be customized according to the thickness requirements of the negative electrode plate. It is suitable for production processes with different compaction densities (1.6-1.8g/cm³) to improve the consistency of the electrode plate.

2.3 Excellent Graphitization Performance

There is great potential for improving graphitization degree. After high-temperature graphitization at 2800-3000℃, the graphitization degree can reach over 90%, and the lattice constant (c0) is ≤ 0.3356nm; During the graphitization process, the volume shrinkage rate remains stable (≤ 5%), which can reduce the risk of cracking in negative electrode products and decrease production losses.

2.4 Good Process Adaptability

The powder has excellent flowability (angle of repose ≤ 38°) and is easily mixed uniformly with binders (such as PVDF) to form a stable slurry system; During the compaction process, it has strong plasticity and is not prone to particle breakage, ensuring the mechanical properties of the electrode and adapting to automated coating production lines.

Raw Material for Artificial Graphite Anodes factory

Raw Material for Artificial Graphite Anodes supplier

3. Main Application Areas

3.1 Power Lithium Battery Field

Used for the production of artificial graphite negative electrodes for new energy vehicle power batteries, with high conductivity and low polarization characteristics, it improves battery rate charging and discharging performance (supporting 1C-3C fast charging), while ensuring a cycle life of over 2000 times, meeting the needs of vehicle range and service life.

3.2 Energy Storage Lithium Battery Field

Suitable for lithium battery negative electrodes in energy storage power stations (such as photovoltaic and wind power supporting energy storage), the low impurity content can reduce the battery self-discharge rate (monthly self-discharge ≤ 3%), and stable graphitization performance ensures a low capacity degradation rate of the battery in long-term charge-discharge cycles (1000 cycles degradation ≤ 15%).

3.3 Consumer Electronics Lithium Battery Field

Used as a negative electrode for lithium batteries in consumer electronic devices such as smartphones and laptops, the customized particle size distribution can achieve thinning of the electrode (electrode thickness ≤ 80μm) and improve battery energy density (with high-capacity positive electrodes, it can achieve a volumetric energy density of ≥ 4.5Wh/cm³).

3.4 Special Lithium Battery Field

Used as a negative electrode for lithium batteries in high-temperature environments (such as industrial control equipment) or low-temperature environments (such as outdoor equipment), the battery maintains stable discharge performance (capacity retention rate ≥ 80%) at -20℃-60℃ by regulating impurity content and graphitization degree.

4. Key Technical Parameters

Item	Index	Test Method
Fixed Carbon Content	≥ 98.5% (power grade ≥ 99.5%)	High temperature burning method (GB/T 3521-2021)
Ash Content	≤ 0.3%	Muffle furnace burning method (GB/T 3521-2021)
Total Metal Impurities	≤ 50ppm (Fe/Ni/Cu ≤ 10ppm each)	Inductively Coupled Plasma Mass Spectrometry (ICP-MS, GB/T 3074.6-2016)
Sulfur Content	≤ 0.1%	Infrared absorption method (GB/T 214-2007)
Average Particle Size (D50)	10-50μm (customizable)	Laser particle size analysis method (ISO 13320-1)
Particle Morphology	Spherical/irregular block-like, without sharp edges and corners	Scanning Electron Microscopy (SEM)
Angle of Repose	≤ 38°	Fixed funnel method (ISO 4324:1977)
Graphitization Degree (after graphitization at 3000℃)	≥ 90%	X-ray diffraction method (XRD, GB/T 3074.5-2016)
Volume Shrinkage (after graphitization)	≤ 5%	Drainage method (GB/T 24528-2009)