Graphite Anode Material (SPHERICAL GRAPHITE)

Description

1. Product Overview

This product is high-purity Spherical Graphite, a precision-engineered anode material specifically designed for lithium-ion battery manufacturing. Its primary industrial application is in the production of EV batteries, consumer electronics energy storage systems, and grid-scale stationary storage. The key value proposition is exceptional cycle stability, high coulombic efficiency, and superior tap density, enabling higher energy density per cell. Strategically, this material is critical to the global energy transition, serving as a direct enabler for reducing battery impedance and extending operational lifespan under high charge/discharge rates.

2. Key Specifications & Technical Characteristics

• Chemical Composition: Carbon (C) ≥ 99.95%; trace elements (Fe, Cu, Zn, Al, Si, S) each < 50 ppm

• Purity Grade: Battery-grade (99.95% – 99.99% total carbon content)

• Physical Form: Spheroidized micro-particles; black or dark grey powder

• Particle Size (D50): 10–16 µm (tailorable to customer specification for high-power or high-energy variants)

• Tap Density: ≥ 1.05 g/cm³ (up to 1.15 g/cm³ achievable)

• Specific Surface Area (BET): ≤ 2.0 m²/g

• First Cycle Efficiency: ≥ 93% (in standard half-cell test)

• Packaging Options: 500 kg flexible bulk bags (FIBC) with inner moisture barrier; 25 kg sealed multilayer paper bags; custom big bags upon request

• Shelf Life: 12 months when stored in original sealed packaging at ≤ 30 °C / ≤ 60% RH; 6 months after opening (must protect from moisture absorption)

3. Core Industrial Applications

• Electric Vehicle (EV) Batteries: Used as the active anode material in 18650, 21700, and prismatic Li-ion cells. Outperforms natural flake graphite due to lower volume expansion (improved cycle life by 30–40%) and more consistent intercalation kinetics.

• Consumer Electronics (Smartphones/Laptops): Enables ultra-thin, high-capacity pouch cells. Spherical morphology increases packing density, delivering 15–20% higher volumetric energy density compared to non-spherical alternatives.

• Stationary Energy Storage Systems (ESS): Provides excellent long-term calendar life (>8,000 cycles at 80% depth of discharge) with minimal degradation. Superior isotropic properties reduce risk of lithium plating during low‑rate charging.

• Cost Advantage: Spherical graphite reduces binder consumption by up to 25% compared to irregular flake graphite due to lower surface area, directly lowering electrode manufacturing costs.

4. Competitive Advantages

• Quality Consistency: Statistical process control (SPC) with a CpK > 1.33 for D50 and BET; each lot is accompanied by a certified mill test report (MTR) including XRD crystallinity analysis.

• Supply Reliability: Vertically integrated from mine to spherical purification; dual-source production facilities in Asia and Africa with 30% spare capacity for peak demand.

• Logistics Capability: Dedicated export packaging and moisture-controlled containers; door-to-door tracking with 45‑day average lead time to North America and Europe.

• Price Competitiveness: Tier‑1 quality at 8–12% below European and North American synthetic graphite equivalents; long‑term supply contracts with fixed quarterly pricing available.

• Sustainability: 94% of process water recycled; byproduct fines repurposed as refractory carbon; available with third‑party ESG audit and carbon footprint declaration (cradle‑to‑gate).

• Technical Support: On‑site application engineering for electrode formulation optimization; XRD/SEM analytical services within 48‑hour turnaround for quality disputes.

5. Commercial & Supply Information

• Minimum Order Quantity (MOQ): BULK 20MT (20 metric tons) per shipment, combinable across two particle size grades

• Loading Capacity: 20 MT per standard 20‑foot dry container (net weight; 1.25 MT palletized per Euro pallet, total 16 pallets per container)
  Optional: 25 MT per 20‑foot high‑cube container using optimized bulk bag stacking (subject to axle weight compliance for road transport)