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E-magy
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E-magy - Nano-Porous Silicon for High-Energy Batteries

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E-magy is forging ahead in the high-energy battery sector with innovative nano-porous silicon technology. This material is key to addressing the increased demand for high-capacity batteries due to its tenfold higher capacity compared to traditional materials. However, silicon's tendency to swell has been a major challenge. E-magy's nano-porous silicon not only maintains the high energy capacity but also minimizes swelling, resulting in less than 5% degradation after 100 charging cycles. This makes it highly compatible and scalable for mass production. Under the leadership of Mario Marinaro, Team Leader Batteries at ZSW, and Prof. Marnix Wagemaker, Head of the Battery Research Group at Delft University of Technology, E-magy's nano-porous structure offers superior performance, cost efficiency, and a versatile solution for high-energy battery requirements. The company's in-house production ensures that the technology is both scalable and competitive, making E-magy a pivotal player in the battery innovation landscape.
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DEMAND FOR HIGH ENERGY BATTERIES IS ON THE RISE

With climate change a key issue in the world today, electrification of mobility is rising fast. The demand for battery power is growing, but standing in the way of wide scale EV adoption are restricted range, charging speed and cost. We believe our specialty silicon has the answers.
 

SILICON IS THE WAY FORWARD

Today's Li-ion batteries use graphite as an active anode material, an approach which can not keep up with market demand. Silicon-dominant batteries are lower in cost and lighter - up to 50kg weight reduction per car battery pack, ready to power the next generation of EV batteries.
 

CHALLENGE: SILICON HAS UP TO 10X HIGHER CAPACITY BUT IS MORE LIKELY TO SWELL

Silicon has long been recognised as a promising active anode material due to its higher specific capacity than graphite. Until now, the transition to silicon was hindered because silicon swells and breaks when charged.
 

SOLUTION: NANO-POROUS SILICON

We invented a low-cost process to mass manufacture structured silicon particles that don't swell and break thanks to nanoscale pores. This unique specialty silicon is purpose-designed for silicon-dominant application in high performance Li-ion batteries.
 

BETTER
PERFORMANCE
Our specialty silicon ensures higher energy density and faster charging; it solves the swelling problem, making silicon-dominant anodes (>80% silicon) a reality.

HIGHLY
COMPATIBLE
This is the low-cost solution compatible with existing production lines that the EV industry needs – as currently verified by R&D managers of more than a dozen leading automotive and battery manufacturer brands.

SCALABLE
PRODUCTION
Our nano-porous silicon is now in production for industrial application in our in-house facility, ready to scale up.

Our nano-porous silicon is produced in our own, fully operational production facility near Amsterdam. The machinery covers 1200 square meters and operates at an industrial scale, can run 24/7 and is capable of producing up to 25 tons a year.
 

EFFICIENT
We use an efficient silicon crystallization process with industry-standard post-processing steps. Next to that, we have a well controlled quality specification in place.

COMPATIBLE
Our nano-porous silicon is compatible with existing lithium-ion battery manufacturing processes and installed factory equipment. This makes it a low risk and easy to adopt solution.

SCALABLE
The facility is capable of manufacturing 25 tons of nano-porous silicon per year. We have designed the process to be easily scalable, with a capacity per line of 300 tons per year.