Sulfur-Carbon Composite Powder
CAS Number 7440-44-0 / 7704-34-9
Battery Materials, Cathode Active Materials, Inorganic Electronic Materials
Cathode Composite Material for Lithium Sulfur Batteries
High sulfur content for high discharge capacity and energy density
Product Information | MSDS | Literature & Reviews | Related Products
Sulfur-carbon composite (CAS number: 7440-44-0/7704-34-9) is a cathode active material used in lithium-sulfur (Li–S) batteries. Li–S batteries have an exceptionally high theoretical energy density of 2600 Wh/kg and specific capacity of 1672 mAh/g.
Sulfur-carbon composite is synthesized through melt diffusion at 155°C for 12 hours from ground sulfur and carbon powder. Carbon acts as a host material in the sulfur-carbon composite, providing sufficient conductive surface and ion/electron transport channels, particularly at high sulfur loading and great electrode thickness. Sulfur-carbon composite enhances electrolyte permeability, allowing fast reactions between lithium ions and sulfur. Sulfur-carbon composite with vary sulfur content from 40-70% can achieve discharge capacities of 500-900 mAh/g, with 50-70% capacity retention over 50-150 cycles.
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General Information
| CAS Number | 7440-44-0 (carbon), 7704-34-9 (sulfur) |
|---|---|
| Chemical Formula | C(S) |
| Full Name | Sulfur carbon composite |
| Molecular Weight | 44.08 g/mol |
| Synonyms | Carbon sulfur composite, C-S composite, S-C composite, S/C composite, C/S composite |
| Classification or Family | Battery materials, Cathode active materials, Lithium sulfur material |
Product Details
| Purity | >99.45% (TGA) |
|---|---|
| Sulfur Content | 69 ± 1% (TGA) |
| Carbon Content | 30 ± 1% (TGA) |
| Particle Size | 80 meshes (sieving method) |
| Appearance | Black powder |
MSDS Documentation
Sulfur-Carbon Composite powder MSDS Sheet
References
- Accelerating lithium-ion transfer and sulfur conversion via electrolyte engineering for ultra-stable all-solid-state lithium-sulfur batteries, M. Li et al., Adv. Funct. Mater., 35, 2413580 (2025); DOI: 10.1002/adfm.202413580.
- Advances in high sulfur loading cathodes for practical lithium-sulfur batteries, M. Wang et al., Adv. Energy Mater., 12, 2201585 (2022); DOI: 10.1002/aenm.202201585.
- Sulfur/carbon cathode material chemistry and morphology optimisation for lithium–sulfur batteries, T. Safdar et al., RSC Adv., 14, 30743–30755 (2024); DOI: 10.1039/d4ra04740k.
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