Group14 Technologies has initiated large-scale production of its proprietary silicon anode material, SCC55®, at a new factory in Sangju, South Korea. The facility, which complements the company’s existing U.S. sites in Woodinville and the soon-to-be-completed Moses Lake plant, is designed to produce up to 2,000 metric tons of SCC55 per year. This annual output is sufficient for approximately 10 GWh of extreme-fast-charging battery capacity, supporting electric vehicles, grid-scale storage, and advanced consumer electronics.
SCC55, developed and patented in the United States, is engineered for seamless integration with multiple cell formats and chemistries, including lithium iron phosphate (LFP), lithium manganese iron phosphate (LMFP), and high-nickel cathode systems. The material is already incorporated into battery programs that power millions of devices globally, ranging from electric mobility platforms and drones to AI-enabled data centers.
By replacing roughly five tons of conventional graphite with one ton of SCC55, the new factory also addresses critical minerals security. Current global production of graphite anode materials is highly concentrated, with more than 90% sourced from a single country. The Sangju facility’s output will help diversify supply chains, reduce dependence on concentrated sources, and strengthen resilience in allied battery manufacturing.
Performance data from commercial partners demonstrate the material’s capabilities: battery cells containing SCC55 have achieved recharge times from zero to full charge in as little as 90 seconds and realized energy-density improvements exceeding 40%. Cycle-life tests show retention of 80% capacity after 1,500 to 3,000 cycles, surpassing the traditional 1,000-cycle benchmark for lithium-ion technologies.
Group14 holds a global patent portfolio of over 170 patents covering silicon battery materials. The company continues to expand and enforce its intellectual property holdings to protect customers against potential infringement risks.
Since its founding, Group14 has secured more than $1 billion in equity funding to support the build-out of its global manufacturing network. The Sangju factory exemplifies the company’s strategy of deploying EV-scale silicon material production close to major battery manufacturers, facilitating rapid adoption of higher-performance, more secure battery technologies.
Source: Group14 Technologies (https://group14.technology/resources/press-releases/group14-accelerates-ev-scale-production-of-breakthrough-silicon-battery-material-in-south-korea/)
