Highly Spherical and Irregular Hard Carbon Powder Lithium-Ion and Sodium-Ion Battery Anode Material

Product Overview

This high-performance hard carbon powder is an engineered carbonaceous anode material developed specifically for next-generation sodium-ion (Na-ion) secondary cells and specialized lithium-ion (Li-ion) battery chemistries. Synthesized with precisely controlled structural ordering and expanded interlayer d-spacing, this material overcomes the intrinsic intercalation limitations found in standard crystalline graphite. It provides an optimized framework that facilitates rapid ion transport, prevents active material degradation during high-rate cycling, and enables superior electrochemical capacity retention.

Designed for both industrial pilot lines and laboratory battery research, this advanced powder is offered in two distinct structural configurations: irregular particle morphology for high volumetric packing and cost-effective prototyping, and highly spherical morphology for superior slurry rheology, uniform electrode coating, and enhanced initial coulombic efficiency. Target industries include stationary grid storage development, electric mobility systems, power tool manufacturing, and academic electrochemistry laboratories investigating sustainable sodium-ion technologies.

Manufactured under rigorous quality control standards, the material guarantees ultra-high purity levels of up to 99.95% with trace moisture content limited to 0.02%. This exceptional chemical consistency minimizes parasitic side reactions with non-aqueous electrolytes, supports solid electrolyte interphase (SEI) stabilization, and delivers highly repeatable cycling data across extended test matrices.

Key Features

• Expanded Interlayer Structure: Engineered with widened graphene interlayer spacing to comfortably accommodate the large ionic radius of sodium ions, minimizing structural strain during rapid de/intercalation cycles.
• Ultra-High Chemical Purity: Boasting a certified carbon content of 99.9% to 99.95%, the material prevents metallic impurity contamination and parasitic side reactions that degrade cell cycle life.
• Optimized Particle Size Distribution: Carefully controlled D10, D50, and D90 particle distributions (D50 of 9–10 µm) facilitate tight packing density and smooth, continuous slurry dispersion on current collectors.
• Superior Initial Coulombic Efficiency: Delivers outstanding first-cycle efficiency up to 85% in simulated half-cell testing, reducing irreversible active ion loss during initial SEI formation.
• Exceptional Specific Capacity: Delivers stable reversible discharge capacities ranging from 250 mAh/g up to 283 mAh/g, offering a competitive energy density profile for sodium-ion systems.
• Ultra-Low Moisture Content: Strictly maintained at 0.02% water content to protect moisture-sensitive non-aqueous electrolytes and avoid unwanted gassing during cell formation.
• Tunable Morphology Options: Available in irregular and highly spherical grades to match specific electrode processing methods, slurry viscosity targets, and calendering parameters.
• Broad Operating Potential Window: Provides sloping and plateau charge-discharge voltage profiles that mitigate sodium plating risks at high charging rates compared to conventional graphite.

Applications

Technical Specifications

Why Choose This Product

• Engineered Batch Consistency: Every lot undergoes stringent particle size distribution, moisture, and carbon purity testing, ensuring that your research results translate reliably to commercial scale.
• Optimized for Advanced Slurry Processing: The tailored surface chemistry and morphology ensure exceptional dispersibility in common battery solvents (NMP) and water-based binder formulations, minimizing agglomeration.
• Proven First-Cycle Coulombic Efficiency: By minimizing specific surface area defects, this material reduces irreversible electrolyte decomposition, directly enhancing full-cell energy density.
• Full-Workflow Compatibility: Seamlessly integrates with laboratory mixing, slot-die coating, calendering presses, and automated pouch/coin cell assembly equipment.
• Technical & Formulation Support: Our engineering team provides in-depth guidance on binder selection, active material ratios, conductive additive pairings, and calendering density optimization.

Contact our technical sales team today to request a quote, material data sheets, or sample batches tailored to your battery development program.

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