Battery supporting materials
Carbon Nanotube NMP Slurry Conductive Paste for Advanced Battery Electrodes
Item Number : FZ33
Price varies based on specs and customizations
- Solid Content
- 5.38 ± 0.20% (TGA)
- Electrode Sheet Volume Resistivity
- 12.5 Ω·cm (Standard ≤ 20 Ω·cm)
- Viscosity
- 3,850 mPa·s (Standard ≤ 12,000 mPa·s)
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Product Overview
This high-purity carbon nanotube NMP slurry provides an advanced conductive additive solution engineered specifically for high-energy-density lithium-ion batteries, supercapacitors, and next-generation electrochemical energy storage systems. By dispersing ultra-fine carbon nanotubes homogeneously within high-grade electronic N-methyl-2-pyrrolidone (NMP), the formulation establishes a continuous, three-dimensional percolation network across active electrode materials. This architecture significantly accelerates electron transport while maintaining structural integrity during extensive charge and discharge cycles.
Designed for pilot lines, commercial cell manufacturing, and rigorous laboratory research, this conductive dispersion eliminates the common challenges of dry-powder agglomeration, dust handling, and inconsistent shearing. It integrates seamlessly into standardized cathode slurry preparation workflows, delivering exceptional rheological stability, superior wetting characteristics, and optimized solids distribution across lithium iron phosphate (LFP), nickel cobalt manganese (NCM), and high-nickel cathode chemistries.
Manufactured under stringent quality control protocols, this suspension guarantees ultra-low magnetic particle contamination and trace heavy metal content through atomic absorption spectroscopy verification. Its consistent batch-to-batch viscosity and high active conductivity ensure reliable coating adhesion, low sheet resistance, and long-term electrochemical stability even under aggressive high-rate and fast-charging operating conditions.
Key Features
- Continuous 3D Conductive Percolation Network: The highly dispersed multi-walled carbon nanotube framework creates an interconnected conductive matrix throughout the electrode, dramatically lowering internal cell impedance and improving active material utilization.
- Superior Low Volume Resistivity: Delivering a measured electrode sheet volume resistivity of just 12.5 Ω·cm (well below the ≤20 Ω·cm quality benchmark), the paste ensures rapid electron transfer across the entire cathode coating layer.
- Optimal Rheological Behavior and Low Viscosity: With an operating viscosity measured at 3,850 mPa·s against a maximum ceiling of 12,000 mPa·s, the slurry facilitates smooth flowability, rapid degassing, and flawless doctor-blade or slot-die coating without clogging.
- Stringent Metal Contamination Control: Non-detectable magnetic metal levels and strictly suppressed trace metals (Fe at 15.7 ppm, Ni at 8.2 ppm, Co at 8.4 ppm, with Cu and Zn non-detectable) prevent localized micro-shorts and inhibit premature battery self-discharge.
- Precision-Engineered Solid Fraction: Maintains a tightly controlled 5.38% total solid content with an exact 4.30% conductive nanotube fraction and 1.08% tailored dispersant balance, maximizing electrical pathways while minimizing unnecessary non-active mass.
- Excellent NMP Solvent Compatibility: Formulated in an electronic-grade 94.62% NMP carrier, the paste mixes effortlessly with standard PVDF binders and active cathode slurries without phase separation or secondary re-agglomeration.
- Enhanced Mechanical Coating Flexibility: The high-aspect-ratio nanotube scaffolding reinforces active material cohesion and foil adhesion, preventing electrode cracking, delamination, and particle shedding during calendering and cycling.
Applications
| Application | Description | Key Benefit |
|---|---|---|
| High-Nickel NCM/NCA Cathodes | Integration into high-energy NCM (622/811) and NCA cathode slurries to provide long-range electron pathways between micron-scale active particles. | Drastically lowers internal resistance, mitigates capacity degradation at high C-rates, and enhances structural stability during cycling. |
| Lithium Iron Phosphate (LFP) Cells | Blending with low-conductivity LFP particles to bridge isolated grains and compensate for inherent bulk electrical limitations. | Delivers substantial rate-capability gains and thermal resilience while lowering the required total conductive additive percentage. |
| Fast-Charging EV Battery Systems | Utilization in high-power cylindrical, prismatic, and pouch cells engineered for ultra-fast charging protocols (3C to 6C). | Minimizes Joule heating and polarization overpotentials, ensuring safe, rapid charge acceptance without lithium plating. |
| Thick-Electrode High-Capacity Designs | Application in high-mass-loading electrode coatings (>20 mg/cm²) requiring deep electronic conduction through the full thickness profile. | Prevents localized electronic starvation near the current collector, promoting uniform depth-of-discharge and high active material yield. |
| Solid-State Battery Cathode Composites | Formulation into dry-coated or solvent-processed composite cathodes incorporating solid electrolyte particles. | Enhances solid-solid interfacial contact and ensures continuous charge transport pathways despite solid electrolyte grain boundaries. |
| Supercapacitor and Hybrid Storage Systems | Incorporation into high-surface-area activated carbon electrodes and pseudo-capacitive hybrid formulations. | Enhances power density, accelerates ion-coupled electronic response times, and maintains exceptionally low equivalent series resistance (ESR). |
Technical Specifications
| Parameter | Unit | Standard Specification | Measured Value (FZ33) | Test / Detection Method |
|---|---|---|---|---|
| Product Code / Identifier | — | FZ33 | FZ33 | Quality Assurance Tracking |
| Solid Content | % | 5.38 ± 0.20 | 5.38 | Thermogravimetric Analysis (TGA) |
| Conductive Agent (CNT) Content | % | 4.30 ± 0.20 | 4.30 | Formulation Ratio Verification |
| Dispersant Content | % | 1.08 ± 0.20 | 1.08 | Formulation Ratio Verification |
| Solvent (NMP) Content | % | 94.62 ± 0.20 | 94.62 | Formulation Ratio Verification |
| Slurry Viscosity | mPa·s | ≤ 12,000 | 3,850 | DV2T Rotational Viscometer |
| Electrode Sheet Volume Resistivity | Ω·cm | ≤ 20.0 | 12.5 | Four-Probe Method |
| Magnetic Impurities & Free Metals | ppm | ≤ 2.0 | Not Detected (N.D.) | Atomic Absorption Spectroscopy (AAS) |
| Cobalt (Co) Content | ppm | ≤ 30.0 | 8.4 | Atomic Absorption Spectroscopy (AAS) |
| Copper (Cu) Content | ppm | ≤ 5.0 | Not Detected (N.D.) | Atomic Absorption Spectroscopy (AAS) |
| Zinc (Zn) Content | ppm | ≤ 5.0 | Not Detected (N.D.) | Atomic Absorption Spectroscopy (AAS) |
| Iron (Fe) Content | ppm | ≤ 30.0 | 15.7 | Atomic Absorption Spectroscopy (AAS) |
| Nickel (Ni) Content | ppm | ≤ 30.0 | 8.2 | Atomic Absorption Spectroscopy (AAS) |
Why Choose This Product
- Exceptional Batch Reproducibility: High-precision fluidic dispersion processes guarantee stable particle size distribution and rheological uniformity across every production batch, ensuring consistent coating line operations.
- Purity-First Formulation Standards: Rigorous atomic absorption spectroscopy screening ensures non-detectable magnetic particulates and heavy metals, safeguarding cells against internal micro-dendrite formation and thermal runaway.
- Reduced Additive Loading Thresholds: Because the high-aspect-ratio carbon nanotubes form superior percolation networks compared to conventional carbon black, active material loading can be increased to directly boost cell energy density.
- Proven Processability: The pre-dispersed NMP suspension integrates effortlessly into planetary mixers, high-shear homogenizers, and continuous twin-screw compounding lines without demanding secondary de-agglomeration steps.
Contact our technical engineering team today to request comprehensive material safety data, order testing samples, or discuss custom conductive slurry solutions tailored to your cell chemistry requirements.
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