Silicon (Si) Nanopowder for Battery Applications

This silicon (Si) nanopowder from Nanografi (product code NG04CO28095) is a battery-grade nanomaterial with 99.9% purity and an average particle size of 100 nm. It is supplied as a dark brown powder and is intended mainly for anode development in lithium-ion and other rechargeable battery systems.

Because the particles are nanoscale, the powder has a large surface area and high reactivity. Silicon can store considerably more lithium than conventional graphite, but it changes volume markedly during lithiation and delithiation, so it is usually studied in nanostructured, composite or hybrid anode designs, including silicon-carbon composites. Smaller particles can shorten lithium-ion diffusion paths and help electrodes cope with mechanical stress over repeated cycles.

Quality is checked by SEM and XRD characterisation, and defined trace-metal limits are given for Zn, Fe, Cr, Mn, Cu, Mo and Al, which helps researchers compare grades where impurities may affect reproducibility. Final electrode performance still depends on silicon loading, binder chemistry, conductive additives, porosity and electrolyte choice.

• Anode material for lithium-ion batteries aimed at higher energy density and longer cycle life than graphite.
• Active material in advanced rechargeable batteries for electric vehicles, portable electronics and grid-scale storage.
• Development of nanostructured electrodes such as silicon-based nanowires, composites and hybrid electrodes.
• Silicon-carbon composite anodes where conductive carbon helps maintain electrical pathways during cycling.
• Storage and conversion systems linked to solar and other renewable energy devices.

• Product code: NG04CO28095
• Average Particle Size: 100 nm
• Characterization: SEM, XRD
• Zn (ppm): ≤280
• Fe (ppm): ≤100
• Cr (ppm): ≤30
• Mn (ppm): ≤20
• Cu (ppm): ≤10
• Mo (ppm): ≤10
• Al (ppm): ≤10

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