New Paper: E-magy‘s Nanoporous Silicon Enables High-Performance, Low-Expansion Anodes

We’re proud to share our latest open-access paper, demonstrating how E-magy’s nanoporous silicon delivers robust performance in both coin and pouch cell formats at ~1000 mAh g⁻¹ Si utilisation.

The study confirms our unique parallel cylindrical pore structure creates a stable crystalline silicon backbone and allows silicon to expand inward, preventing particle fracture. SEM, Raman, and XRD analysis all show the pore architecture stays intact—even after 200+ cycles, with no visible cracks in particles up to 10–20 µm.

The internal pore structure of the silicon particles remains intact after cycling

This internal buffering dramatically reduces swelling:

Only 16% anode expansion (vs. 75% for non-porous Si)
<4% stack expansion in multilayer pouch cells
>90% first-cycle coulombic efficiency

The work demonstrates that E-magy’s nanoporous silicon is a low-cost, high-capacity, industrially compatible anode material for next-generation lithium-ion batteries, validated in both coin and multilayer pouch cells using standard cathode materials and electrolytes. Its scalability and robustness make it suitable for high-performance applications across sectors, including drones and consumer electronics.

🔗 Access the full open-access publication here: link to the DOI


For collaborations, sample requests, or technical discussions, please contact our team.