Silicon Nanoparticle/Conductive Graphite (Si/G) Composite Powder for Li-Ion Battery Anode, 100g/bottle, CLIBAnSiG
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The C-LIB-A-nSi/G anode is prepared by mechanical milling of silicon nanopowder and conductive graphite. The mass ratio of Si : Graphite is 1:9.
Conductive graphite is the commercial anode (≈372 mAh/g) with good cycle life and volumetric density; adding a controlled amount of Si (~10wt%) raises specific and volumetric capacity without the severe mechanical failure of pure Si electrodes.
This composite improved gravimetric and volumetric energy density compared with pure graphite, better initial coulombic efficiency than pure nano-Si when Si is limited and well-integrated, easier scale-up using existing graphite electrode processes.
| Part Number |
CLIBAnSiG (C-LIB-A-nSi/G) |
| Particle Size |
D 10 = 4.2 um, D50 = 10.4 um, D90 = 24.0 um |
| Specific Surface Area |
~2.0 m2/g |
| Tap Density |
1.02 g/cm3 |
| First Discharging Capacity |
~446.6 mAh/g (0.1 C, 0.005V-1.5 V)  |
| First Columbic Efficiency |
91.4 % |
References:
- M, Wetjen, et al. Morphological Changes of Silicon Nanoparticles and the Influence of Cutoff Potentials in Silicon-Graphite Electrodes, J. Electrochem. Soc., 2018, 165 A1503.
- S. Chae, et al. Integration of Graphite and Silicon Anodes for the Commercialization of High-Energy Lithium-Ion Batteries, Angew Chem Int Ed, 2020, 59, 110-135.