Silicon Metal and Silicon Composites

Paraclete Energy’s standard silicon metal products:

Contact Us for Production Quantity Pricing

nSiO – Nanoparticle silicon metal with oxide on the surface.


nSiH – Nanoparticle silicon metal with hydrogen on the surface.


nSi – Raw silicon metal with substantially <0.5% impurities metals basis. This product is highly reactive to air.

≥99.5%100gContact us for details

nSi/C – Nanoparticle silicon metal with carbon on the surface.


nSi/Cg – A composite of nanoparticle silicon metal with graphene on the surface.


nSi/Cg/P – A composite of nanoparticle silicon metal with graphene and polymer on the surface.


SM-Silicon™ – Nanoparticle silicon metal with a proprietary Surface Modifier that acts as artificial SEI for cycle stability. *

≥99.5%100gContact us for details

SM-Silicon/C™ – Nanoparticle silicon metal with a custom Surface Modifier optimized to the customer’s application, binder, electrolyte, and cathode system.

≥99.5%100gContact us for details

SM-Silicon/PL™ – Prelithiated nanoparticle silicon metal with a proprietary surface modifier that acts as a protective shell from air and moisture and as an artificial SEI.

≥99.5%100gContact us for details

Production quantity pricing as low as $/kWh < graphite is available. Contact for details.

For more details, download the SM-Silicon/3590™ Fact Sheet.


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To order or to create a quotation, click the products below:

The following characteristics for all of PE’s silicon*:

Type/Form = Crystalline Powder
Purity = ≥99.5%
Surface Purity = 0% SiO2, air stable (except nSi)
Total Metals Impurities = <0.5%
APS = 150nm (For PSD other than D50 150nm – Contact PE for a quote.)

SEM image of R&D Products

SEM image of R&D Products

BET / SSA = 30 m2/g
Tap Density = 0.8 g/cm3
Color = Gray to dark gray (except nSiO: yellowish brown)
Morphology = Non spherical
mp = 1414° C

* The composition would change by the specific surface modifier so identified for each respective product, (SM-Silicon™, SM-Silicon/C™, SM-Silicon/PL™, nSi/C, nSi/Cg, nSi/Cg/P, nSiO, nSiH) be it custom SM for our SM-Silicon™ or C, graphene, polymer or oxygen for the other R&D products.

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