Ketjenblack EC-300J High-Structure Carbon Black
CAS Number: 1333-86-4
Ketjenblack EC-300J is an ultra-high-structure, hollow-shell carbon black with a very high BET surface area (~800 m²/g) and exceptional DBP absorption, enabling extremely low percolation thresholds in battery electrodes. It is used at ultra-low loadings (0.1–0.5 wt%) to achieve high conductivity with minimum binder displacement.
Technical Specifications
| ash (%) | ≤0.05 |
| appearance | Black powder |
| moisture (%) | ≤0.5 |
| BET surface area (m²/g) | 750–900 |
| DBP absorption (mL/100g) | 310–370 |
| primary particle size (nm) | 30–40 |
Applications
- Ultra-low loading cathode conductive additive (0.1–0.5 wt%)
- Lithium-sulfur battery sulfur host matrix
- High-loading silicon anode supplemental conductor
- Solid-state battery composite cathode conductor
- Supercapacitor electrode high-conductivity carbon
Key Features
- Ultra-high structure (DBP >310 mL/100g) achieves percolation at <0.5 wt% loading
- Hollow shell morphology provides additional internal surface for electrolyte accessibility
- Superior sulfur encapsulation capability for high-performance Li-S batteries
- Minimal loading reduces binder consumption and maximizes active material content
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