Our battery-grade silicon nanoparticles are manufactured using our own metallurgical silicon from Iceland. There, we operate the world’s most advanced silicon plant. With this improved sustainable and environmentally friendly process technology, we are able to achieve the lowest CO
2 footprint in the market.
The silicon nanoparticles have a silicon purity of above 99%, a low SiOx content on its surface and feature a narrow particle size distribution with various particle size distributions available ranging from D50 = 100 to 350 nm. The particle size can be customized upon request. Also differing particle sizes can be supplied. Obtained silicon particles come with a flake-like morphology.
Excellent dispersibility. High surface-to volume ratio make them an excellent choice for fast-charging applications.
Very good cycling stability and high specific capacity. Sufficiently small to prevent pulverization during cycling. Low impurity and oxygen content result in a very high first cycle efficiency above 85%.
Cycling performance of silicon nano particles in LiB
They can be supplied in dispersion in various organic solvents (standard: Isopropanol, others upon request).
Can be supplied in large quantities.
| Product name |
Silicon nanoparticles in dispersion |
| CAS-Nummer |
7440-21-3 |
| MDL |
MFCD00085311 |
| EC |
231-130-8 |
| Si-Purity |
>99 wt% |
| Particle size distribution (PSD) |
D50 = 100 – 350 nm
Adjustable; other particle sizes available on request |
| Form |
Nanoparticles in dispersion
(Examples: iso-propanol, ethanol, paraffin, ethylene glycol, ethyl benzol, propylene glycol, acetone. Other solvents possible) |
| Solid content |
Adjustable (typical 10 – 25 wt%, depends on specified dispersant) |
| Appearance |
flakes |
| Synonymous |
nano silicon, silicon nanoparticles; dispersion |
| Function |
Precursor, intermediate product, raw material, anode active material, anode material, capacity increasing, fast charging capability |
| Specific surface (BET) |
10-100 m²/g (dependent on particle size distribution) |
| Specific discharge capacity (mAh/g on active material level) |
3100 mAh /g @ 1/20 C; 0.01-1.2 V
2400 mAh/g @ 0.5 C; 0.01-1.2 V |
| Initial coulombic efficiency |
>85% |
