Paul van Gerven
21 April 2023

Dutch battery startup E-magy has secured 15 million euros in series A funding, along with 5.5 million euros in Nxtgen Hightech subsidy. The money will be used to prepare for industrial-scale production of nanoporous silicon-anode material.

Silicon has long been recognized as a promising alternative anode material for lithium-ion batteries, given its ability to accommodate ten times more lithium than commonly used graphite. However, silicon anodes typically swell and break when charged and discharged.

E-magy has developed a high-throughput casting process to manufacture nanoporous silicon that contains the swelling. This material delivers 40 percent higher energy density and enables faster charging, the company based in Broek op Langedijk claims. Furthermore, it says that its technology is easily scalable.

E magy nano porous silicon particles
Nanoporous silicon anodes don’t crack under the pressure of having to host lithium ions. Credit: E-magy

“These funds will help us transition from our current pilot facility to a higher-capacity, next-generation production line, ensuring we have the necessary capacity to meet growing market demand for higher energy density batteries,” E-magy CEO Casper Peeters comments. “We’ll also be able to grow our engineering team, bringing in more battery scientists and application engineers to support our customers in achieving the best results with our advanced materials.”

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Norse aluminum and energy company Hydro, Dutch public investment bank Invest-NL and venture capital fund Rubio joined existing investors Shift Invest and PDENH to complete the funding round.