MSE PRO 10g Sulfur-Carbon Composite Cathode Material For High Performance Lithium-Sulfur Batteries

10g Sulfur-Carbon Composite Cathode Material For High Performance Lithium-Sulfur Batteries

Rechargeable lithium–sulfur (Li–S) batteries have recently become one of the most promising energy storage systems thanks to the low-cost and high-specific energy of sulfur cathodes. The practical application of Li-S battery is still limited by many material challenges, including dissolution of intermediate lithium polysulfides (Li₂S_x, x>3) in the electrolyte, large volumetric expansion (80%) of sulfur upon lithiation, and poor electronic/ionic conductivity of sulfur and lithium sulfide (Li₂S). 

MSE Supplies offers a sulfur-carbon composite cathode material for lithium-sulfur batteries. It can deliver a initial capacity of 1180 mAh/g at 0.1C.  This sulfur-carbon cathode material can retain a charge/discharge capacity of 860 mAh/g after 100 cycles at 0.2C. 

Product No.: PO5018

Package Size: 10 g per bottle

Specifications:

• Appearance: Black powder
• Composition: Sulfur-carbon composite
• Particle Sizes:
• D10: 5 µm
• D50: 15 µm
• D90: 33 µm
• TAP Density:  0.37 g/cm³
• Sulfur content: 75% (the range within 30%~80% could be customized)
• Other information is limited

Coin cell CR2032 battery performance: 

Experimental conditions:

• Single-sided loading 5.5 mg/cm²
• 91 wt% sulfur-carbon composite material, 3 wt% Ketjen black(ECP), 6 wt% PVDF (Arkema HSV900)
• Electrolyte: 1 M LITFSI 2 wt% LiNO₃ in DOL/DME (1/1, v/v, liquid sulfur ratio: 14 ul/mg)
• 0.1C first capacity is 1180mAh/g, 50 cycles 1000mAh/g
• 0.2C first capacity 1090mAh/g, 100 cycles 860mAh/g

References:

1. Balancing surface adsorption and diffusion of lithium-polysulfides on nonconductive oxides for lithium–sulfur battery design, Nat. Commun. 7, 11203 (2016)

2. New Approaches for High Energy Density Lithium–Sulfur Battery Cathodes, Acc. Chem. Res. 2013, 46, 5, 1135–1143