Natural Graphite Powder for High End Lithium Battery Anode Material

Product Overview

This high-purity natural graphite powder is engineered specifically to meet the rigorous demands of advanced lithium-ion battery research, pilot prototyping, and high-end cell manufacturing. Characterized by high fixed carbon content, exceptional crystal structure integrity, and tightly controlled particle distribution, this raw material serves as an optimal active component for next-generation negative electrode formulations. It provides the ideal balance between high reversible capacity and stable solid electrolyte interphase (SEI) formation across challenging cycling protocols.

Designed for seamless integration into standard and automated electrode manufacturing lines, the material exhibits superior wetting, stable dispersion during slurry mixing, and predictable rheological behavior in solvent-binder systems. Target industries include high-energy-density consumer electronics, electric vehicle (EV) energy storage development, grid-scale storage solutions, and advanced materials research laboratories requiring uncompromised chemical purity and repeatable electrochemical performance.

Every production lot undergoes stringent multi-stage quality control—verified through advanced laser diffraction, Karl Fischer coulometric titration, inductively coupled plasma atomic emission spectrometry (ICP-AES), and automated tap density analysis. This rigorous quality verification ensures consistent packing behavior during precision calendering, preventing active layer delamination and delivering dependable cycling life under demanding fast-charge and deep-discharge operational regimes.

Key Features

• High Reversible Specific Capacity: Delivers a discharge capacity exceeding 360 mAh/g with an initial coulombic efficiency rating of ≥93%, maximizing the usable energy density of fabricated negative electrodes.
• Exceptional Chemical Purity: Formulated with ≥99.9% fixed carbon content and ultra-low metallic iron impurities (≤50 ppm), effectively suppressing parasitic side reactions, self-discharge, and micro-shorting.
• Controlled Particle Size Distribution: Features a tightly targeted grain size profile (D10: 10.5±1.5 µm, D50: 18.0±1.5 µm, D90: 29.0±3.0 µm) to facilitate optimal packing density and smooth doctor-blade slurry coating.
• Ultra-Low Moisture Content: Strictly controlled residual moisture of ≤0.1% prevents premature binder degradation, side gas evolution, and adverse reactions with moisture-sensitive non-aqueous electrolytes.
• Optimized Specific Surface Area: A BET specific surface area of 3.0±1.0 m²/g balances fast lithium-ion transport kinetics with reduced initial irreversibility and minimal electrolyte consumption during SEI formation.
• High Volumetric Tap Density: Demonstrates a tap density of ≥0.95 g/mL, supporting high calendar pressing compact density without inducing particle fracture or excessive electrode tortuosity.
• Superior Slurry Processing Stability: Compatible with standard NMP/PVDF and aqueous binder systems, ensuring uniform dispersion without severe agglomeration during high-shear mixing and continuous slot-die coating.

Applications

Technical Specifications

Why Choose This Product

• Consistent Lot-to-Lot Homogeneity: Advanced manufacturing and classification processes ensure tight standard deviations across particle distribution, surface area, and chemical composition, eliminating batch-to-batch variability in electrode production.
• Optimized for High-Throughput Processing: Excellent rheological compatibility simplifies slurry formulation (such as standard 92 wt% active powder, 8 wt% PVDF in NMP), enabling uniform blade coating and reduced defect rates on copper foil substrates.
• Stringent Multi-Standard Quality Assurance: Certified testing via laser diffraction, coulometric titration, and ICP-AES guarantees full compliance with international battery material specifications (ISO, GB/T, EPA).
• High Compaction Tolerance: Engineered particle morphology maintains high mechanical resilience during precision calendering to achieve targeted 35% porosity without delamination or particle pulverization.
• Comprehensive Battery Ecosystem Compatibility: Perfectly matched with laboratory slurry mixers, precision coating machines, roll presses, and automated testing equipment across the complete cell fabrication workflow.

Contact our technical engineering team today to discuss volume pricing, request comprehensive analytical certificates, or order material samples for your battery research and development line.

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