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Si/C Anode Technology · Beyond EV
Power without limits.
The same silicon-carbon anode technology trusted by the EV industry now enables a next generation of high-performance applications — from autonomous drones to humanoid robots. Higher energy density. Faster charging. Longer cycle life.
Key Performance Indicators
Higher energy density vs. graphite
Battery cell tests completed
Si/C composite discharge capacity
Continuous R&D expertise
Core Advantages
Why silicon-carbon changes everything
Our milled SiC based anode material delivers a step-change in energy storage performance with properties that unlock use cases graphite simply cannot support.
Extreme Energy Density
Pack more energy into the same volume. Our Si/C composite delivers 5–6× the capacity of graphite, enabling lighter, more compact battery packs across all form factors.
Ultra-Fast Charging
The elastic carbon matrix absorbs silicon volume changes during lithiation, preventing cracking and enabling extremely fast charge cycles critical for drones and fleet operations.
Long Cycle Life
Stabilized silicon nanoparticles with ultra low oxygen content and a non porous carbon matrix ensure consistent performance across thousands of charge cycles.
Drop-In Integration
No new manufacturing infrastructure required. Our material blends seamlessly into existing electrode mixtures minimizing integration cost and time to market for cell makers.
Secure Supply Chain
Built on metallurgical grade silicon and carbon globally available, cost controlled raw materials. No rare earth dependencies. Resilient supply from day one.
Sustainable by Design
Production powered by renewable energy. Solid state process no gas phase transition. ESG-compliant and auditable, meeting the standards of tomorrow's regulatory environment.
Target Markets
Four industries. One material.
Flight-time critical
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Higher energy density directly extends flight time — a decisive competitive advantage for inspection, delivery, and defense drones.
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Lighter battery packs increase payload capacity without sacrificing endurance.
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Fast-charge capability enables rapid redeployment in field operations.
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Long cycle life reduces total cost of ownership for high-frequency commercial operators.
Our flexible process flow allows for multiple applications.
Being a reliable supplier is key for being a critical link in the EV supply chain. The Extra Mile's process was designed with seamless scalability in mind ensuring supply security for battery manufacturers.
Our battery technology focuses on low energy intensity and a minimal carbon footprint.
Material Performance
The same material. Any platform.
Our flagship 1700GF Si/C composite has been tested and approved by leading battery cell makers across multiple demanding industries. It is past the first hype — validated at pack level, ready for industrialization.
| Discharge Capacity | 1700 mAh/g |
| Energy Density vs. Graphite | 5–6× |
| Silicon Nanoparticle Size | < 100 nm |
| Production Capacity (2028) | 5,000 MT/yr |
| Industrial Pilot Plant SOP | Q4 2026 |
| Years of Continuous R&D | 25 years |
| Battery Cell Tests Completed | 40,500+ |
| IP Position | #1 Worldwide |
Key material properties:
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No gas-phase transition — solid-state process, lower energy intensity
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One of the world's strongest IP positions, confirmed by independent research
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Production powered by 100% renewable energy
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Flexible process flow — scalable to multiple application volumes
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Backed by Umicore's +25 years battery materials expertise
Why The Extra Mile
Built for the long run.
Choosing an anode material supplier is a strategic decision. Here is why leading battery manufacturers trust The Extra Mile — and why that matters to you.
Proven at Scale
Over 90,000 kg of Si/C produced and 40,000+ battery cell tests completed. Industrial pilot plant SOP in Q4 of 2026. Mass production at 4,500 MT/yr in 2028.
World-Class IP
Independent research confirms The Extra Mile holds one of the world s strongest IP positions in silicon-carbon anode technology — providing freedom to operate and a defensible innovation moat.
Partner-First Approach
We co-engineer battery integration with customers. With 25 years of electrode formulation expertise, we help you optimize the material for your specific application.
Security of Supply
No rare-earth dependencies. Our process relies on globally available metallurgical-grade silicon and carbon precursors — resilient, cost-controlled supply independent of geopolitical risk.
Sustainable Production
ESG-compliant, renewable-energy-powered production. Our solid-state process carries a minimal carbon footprint relative to competing technologies.
Umicore and HS Hyosung Backbone
Backed by Umicore and HS Hyosung Advanced Materials, both global leaders in advanced materials technology and recycling with deep battery expertise and industrial credibility — ensuring financial stability and long-term commitment to customers.
Ready to go the extra mile?
Talk to our materials team about integrating Si/C anode technology into your next-generation battery platform.