Materials / grade-specific review
Nano Silicon Powder
50–150 nm silicon at ≥99.9% purity — the highest-capacity anode material available, and the most demanding to handle.
APPLICATION & GRADE
Grade / designation: SZ-M1-NM03
Grade and specification to be confirmed
Discuss Material Requirements ↗Typical applications
High-capacity anode research
Silicon-graphite blend development
Pre-lithiation studies
Binder and electrolyte screening
Grade & supply review
Tube diameter, length and wall count
Purity and ash content
Supply form — powder or pre-dispersed slurry
Surface functionalisation and coating
Representative image. Actual material appearance varies by grade and lot — request a current photograph or sample.
About this material
Silicon stores lithium by alloying rather than intercalation, which gives it roughly 3579 mAh/g at full lithiation — ten times graphite. Nanoparticles shorten the diffusion path enough to avoid pulverisation, but the volume change remains: about 300% from pristine to Li3.75Si.
That expansion is why nano-silicon is never used neat. It is carbon-coated, blended at 5–10% into graphite, and held together with PAA. Expect a first-cycle efficiency of 75–85% and plan for pre-lithiation if full-cell energy matters.
Documentation, controls and care
Quality controls
- Certificate of analysis per batch
- Moisture by Karl Fischer, reported per lot
- Trace metal screening
- Retained samples held for 12 months
Handling & storage
- Pyrophoric in fine size ranges and moisture-sensitive: handle in an argon glove box.
- Reacts with water to release hydrogen — never open on a bench or near ignition sources.
- Respirable dust hazard; use P3 respiratory protection for any handling outside a box.
Grades on this page are references used to describe capability; they are not a fixed product list.
Specification values are typical windows compiled from public technical references and supplier
datasheets, and are provided for selection guidance only. The specification delivered against your
order is agreed in writing, and measured values are confirmed on the batch certificate of analysis.
Materials listed here may be hazardous; they must be handled by qualified personnel under applicable
regulations.
Material specifications
| Material | Crystalline silicon nanoparticles |
|---|---|
| Particle size | 50–150 nm |
| Purity | ≥99.9% |
| Specific surface area (BET) | 20–60 m²/g |
| Oxygen content | ≤3% |
| Bulk density | 0.1–0.3 g/cm³ |
| Theoretical capacity | 3579 mAh/g (Li3.75Si) |
| Volume expansion | ≈300% at full lithiation |
| Recommended blend | 5–10 wt% in graphite |
| Packaging | 25 g / 100 g argon-sealed |
Grade & packaging options
Custom particle size or purity windows
Pilot and production quantities
Technical review call with our materials team
Supply boundaries
Reference grade, not a fixed catalogue item. Capacity, particle size, coating, purity and packaging are set to the specification your process needs — the delivered grade may differ from the values shown here.
Packaging & handling
Laboratory pack | 100 g / 500 g foil-lined pouch
Pilot pack | 1 kg / 5 kg sealed container
Production pack | 25 kg fibre drum, inner PE liner
Information for material review
Cell chemistry, format and voltage window
Target capacity, areal loading or formulation
Process route — NMP/PVDF, aqueous, or dry
Quantity per lot, packing and delivery schedule
Training in China
Training at our China facility is available for this product. Scope, schedule and language are agreed for each project.
Related products
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