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ossila硫碳复合粉末

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产品名称: ossila硫碳复合粉末
产品型号: 7440-44-0
产品展商: Ossila

简单介绍

锂硫电池正极材料,将单质硫负载于碳基体中,用来改善硫导电性差、多硫化物穿梭效应等问题


ossila硫碳复合粉末  的详细介绍

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.


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


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