NanoGraf, the largest silicon oxide anode material producer in the US, has introduced a new silicon anode called Onyx, which it claims delivers five times the performance of synthetic graphite for the same cost.
It said Onyx has cost parity with synthetic graphite anodes. It will be manufactured at NanoGraf’s Chicago facility, with expanded production planned for its recently announced plant for Michigan. It said Onyx is designed to deliver peak performance at a lower price point than other available silicon anode options. It is suitable for applications including electric vehicles, military, medical devices, consumer electronics and drones.
NanoGraf CEO Francis Wang said: “With Onyx, NanoGraf has addressed these issues to create a material that makes silicon anode technology as ready for manufacturing as graphite. It’s our most energy-dense anode material yet, perfect for the demands of EVs and other real-world applications.”
The company claims cost parity at scale for the material with synthetic graphite on a $/kWh basis, 30% improvement in cell energy density compared to synthetic graphite anodes. The metal-doped silicon oxide core reduces swelling by 75% compared to traditional silicon, it said, extending overall battery life.
“Eliminating silane gas from the anode production process is a huge step forward for the battery industry,” said Wang. “This paves the way for more sustainable, scalable, and cost-effective solutions that set a new standard for innovation in battery manufacturing.”
