Multi-Walled Carbon Nanotube (MWCNT) Conductive Additive
CAS Number: 308068-56-6
Battery-grade multi-walled carbon nanotubes (MWCNTs) form a 1D conductive network in battery electrodes that bridges isolated active material particles, significantly improving rate capability and cycle stability versus carbon black. Used as a single conductive agent or in combination with carbon black, typically at 0.1–1.0 wt%.
Technical Specifications
| ash (%) | ≤2 |
| appearance | Black powder |
| purity (%) | ≥95 |
| length (μm) | 3–15 |
| outer diameter (nm) | 8–15 |
| BET surface area (m²/g) | 200–300 |
Applications
- NMC/NCA/LFP cathode 1D conductive network additive
- Silicon-graphite anode flexible conductive scaffold
- High-power battery electrode conductive additive
- Dry electrode process binder-free conductive network
- Lithium-sulfur battery carbon framework
Key Features
- Long aspect ratio (>300) creates continuous conductive pathways at ultra-low filler fractions
- High tensile strength reinforces electrode mechanical integrity against Si expansion
- Available as pre-dispersed suspension in NMP or water for direct slurry blending
- CNT+C45 combination provides both long-range and short-range conductive networks
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