Micro/Mesoporous Hierarchical-Porous-Carbon (PC-06L) as Conductive Host for S/C Cathode, 5-20 g/bottle, CSCCHMMHPC
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A micro/mesoporous hierarchical-porous-carbon (HPC) framework is widely regarded as one of the most effective conductive hosts for Lithium-Sulfur (Li-S) battery cathodes (S/C composites).Lithium-sulfur batteries offer exceptionally high theoretical energy density (~1673 Wh/kg), but practical implementation is historically hindered by major bottlenecks: the electrical insulation of sulfur, large volumetric expansion (~80%) during lithiation, and the notorious "shuttle effect" caused by the dissolution of intermediate lithium polysulfides (Li2Sx) in organic electrolytes. A hierarchical micro/mesoporous carbon structure uniquely resolves these challenges by combining the distinct structural advantages of both pore regimes.
Its main electrochemical advantages are: (1) Enhanced Electrical Conductivity: The continuous graphitic carbon matrix provides a robust, highly conductive network that ensures rapid electron transfer to otherwise insulating sulfur and discharge products (Li2S2/Li2S). (2) Superior Cycling Stability: Traditional mesoporous carbon hosts often suffer from gradual capacity decay because dissolved polysulfides escape into the electrolyte. The inclusion of a microporous network (or a micro-structured shell configuration) acts as a selective physical/chemical barrier that stabilizes capacity over hundreds of cycles. (3) High Rate Capability: The interconnected hierarchical channels (often extending down to macropores for multi-scale networks) ensure that both ionic and electronic transport kinetics remain unimpeded, delivering high capacity even at elevated current densities.
| Part Number |
CSCCHMMHPC (C-SCCH-MMHPC) |
| D50 |
8-10 um
|
| Total Pore Volume |
1.65 cm3/g
|
| Pore Diameter |
2-16 nm |
| Pore Distribution |
Micropore+Mesopore |
| Surface Area (BET) |
2000-2100 m2/g |
| Micropore Volume |
0.81 cm3/g |
| Purity |
>99.99% |
| Sulfur Loading Capacity |
60-80 wt% (melting+diffusion) |
| Package Size | 5 g, 10 g, and 20 g/bottle |
Notes: Please try to store the PC-06L porous carbon powder in a dry place.
References:
- D. L. Vu, et al. Stabilizing interface of novel 3D-hierarchical porous carbon for high-performance lithium–sulfur batteries, Electrochimica Acta, 2022, 418, 140369
- C. Zhao, et al. Micro-mesoporous carbon nanofibers loaded with sulfur as a self-supported cathode for high-performance Li-S batteries, Journal of Energy Storage, 2023, 74, 109387