Renewable Energies BatteriesLithium-ion Battery Anode
SiliconSi Nanowire CAS Number : 7440-21-3
Silicon nanowire-infused (SiNW) graphite is the centerpiece of SINANODE’s Silicon Technology Platform which also includes a fully developed manufacturing process/scale-up plan and flexible cell design options. SINANODE delivers:
Tripled energy capacity of the anode
Faster charging speeds
Lower cost per kWh
Reduced carbon footprint
Silicon can store ten times the energy of graphite alone yet previous attempts to include more silicon in the anode faced challenges of silicon expansion and breakage. This limited the amount used to extremely small percentages and only modest performance improvements. Being able to add larger amounts of silicon—efficiently—is the essential breakthrough needed to produce competitive EVs that meet market demand for high-performance, affordable vehicles.
SINANODE silicon nanowire technology is the only silicon solution that meets the technical and economic challenges.
The SINANODE Step infuses silicon nanowires into EV-grade graphite using existing CVD machinery. This makes the silicon directly accessible to lithium ions without the inefficiencies of trapping silicon inside inactive carbon. SINANODE delivers 3,250 mAh/g—the highest of any silicon solution. This means higher energy density and greater EV range.
Silicon nanowires are electrical wires orders of magnitude smaller than human hair. Using only silane (a gas produced from metallurgical-grade silicon and available from multiple suppliers), nitrogen, and modest amounts of electricity, the SINANODE process infuses silicon nanowires directly into the graphite, much like plugging an electrical cord into an outlet. When charged, silicon nanowires remain pliant and do not crack. With hundreds of thousands of wires on each graphite particle, the silicon triples the energy density of the anode.