10g Mesoporous Nano Carbon for Lithium-Sulfur Battery

10g Mesoporous Nano Carbon for Lithium-Sulfur Battery

Rechargeable lithium–sulfur (Li–S) batteries have recently become one of the most promising energy storage systems due to the low-cost and high-specific energy of sulfur cathodes. The practical application is still hindered 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). 

Mesoporous carbon has large specific surface area and pore capacity, good electrical conductivity and structural stability, controlled pore size distribution and ordered pore structure, which can effectively improve the utilization of sulfur and the cycling performance of batteries. The composites of ordered mesoporous carbon and sulfur can obtain better electrochemical performance. The small load of mesoporous cabron can help to inhibit the diffusion of polysulfide ions and facilitate the transport of lithium ions during the charge and discharge. In addition, the large pore capacity can increase the sulfur loading and improve the initial discharge capacity and cycling performance of the battery.

Product SKU#: PO5019

Package Size: 10 g

Specifications:

• Appearance: Black powder
• Composition: Mesoporous carbon
• Particle Sizes:
• D10: 3.7 µm
• D50: 10.4 µm
• D90: 27.9 µm
• TAP Density:  0.146 g/cm³
• Specific surface area: 232 m²/g (mercury intrusion porosimetry test)
• Theoretical sulfur loading: up to 90 wt%
• Other information is limited

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