GDI 100% Silicon Anode

GDI (Graphenix Development Inc.) is a Rochester, New York based technology company with a European office in Eindhoven, the Netherlands. It develops and manufactures 100% silicon anodes for lithium-ion batteries.

The patented anode targets defense, drones, MedTech, e-mobility and aerospace uses. In May 2025 GDI announced a follow-on Series A and a European headquarters in Groningen, with pilot production in the Netherlands at 300 kWh capacity. The anode is stated to integrate directly into existing battery manufacturing.

• 100% silicon anode: patented anode material for lithium-ion cells.
• Fast charging: stated charging in under 15 minutes.
• Higher energy density: stated over 30% above graphite-based anodes.
• Drop-in manufacturing: integrates with existing battery production and solar and glass equipment.
• Pilot production: 300 kWh pilot capacity in the Netherlands.

Drone makers could use high-energy cells for longer missions. EV battery pack makers could test fast-charge cells. Medical device makers could evaluate compact high-capacity batteries.

The company states over 30% higher energy density than graphite-based anodes. Charging in under 15 minutes is stated. Compatibility with existing manufacturing equipment reduces integration effort. The company holds 31 patents worldwide.

Defense, drone and e-mobility makers seek higher-energy cells and regional anode supply outside Asia. Vietnamese drone and EV battery assemblers may look to silicon anodes as cell energy density requirements rise.

Headquartered at 66 Eastman Ave, Rochester, NY; European office in Eindhoven. May 2025 follow-on Series A of over USD 11.5 million led by Helios Climate Ventures, Impact NY and InnoEnergy; total Series A over USD 20 million.