E-magy B.V. is a Netherlands-based advanced materials company developing and producing nano-porous silicon anode material for enhanced lithium-ion battery performance, aiming for higher energy density, faster charging, and extended battery life by addressing silicon swelling issuesE-magyB.V.isaNetherlands-basedadvancedmaterialscompanydevelopingandproducingnano-poroussiliconanodematerialforenhancedlithium-ionbatteryperformance,aimingforhigherenergydensity,fastercharging,andextendedbatterylifebyaddressingsiliconswellingissues
Key Products/TechnologiesKeyProducts/Technologies
Nano-Porous Silicon Anode Material: A proprietary nano-porous silicon anode material incorporating technology to effectively suppress silicon's volumetric expansion. This material enables a high silicon content of over 80% and maintains pouch cell thickness variation below 5%. It is a solution fully compatible with existing lithium-ion battery manufacturing equipment, allowing adoption without significant additional capital expenditure for battery manufacturers.Nano-PorousSiliconAnodeMaterial:Aproprietarynano-poroussiliconanodematerialincorporatingtechnologytoeffectivelysuppresssilicon'svolumetricexpansion.Thismaterialenablesahighsiliconcontentofover80%andmaintainspouchcellthicknessvariationbelow5%.Itisasolutionfullycompatiblewithexistinglithium-ionbatterymanufacturingequipment,allowingadoptionwithoutsignificantadditionalcapitalexpenditureforbatterymanufacturers.
Silicon Anode Solution: Providing a silicon anode solution that can be integrated into existing lithium-ion battery production lines. This solution contributes to significant performance improvements, boosting battery energy density by up to 40% and charging speed by up to three times. It utilizes low-cost metallurgical-grade silicon, reducing production costs and achieving a six-fold reduction in carbon emissions, representing an environmentally friendly production process.SiliconAnodeSolution:Providingasiliconanodesolutionthatcanbeintegratedintoexistinglithium-ionbatteryproductionlines.Thissolutioncontributestosignificantperformanceimprovements,boostingbatteryenergydensitybyupto40%andchargingspeedbyuptothreetimes.Itutilizeslow-costmetallurgical-gradesilicon,reducingproductioncostsandachievingasix-foldreductionincarbonemissions,representinganenvironmentallyfriendlyproductionprocess.
Proprietary Nanostructured Silicon Manufacturing Process: A low-cost mass manufacturing process that prevents silicon particle swelling and breakage through nanoscale pores. This process uses micrometer-sized powder and inexpensive metallurgical silicon, replacing costly engineered particles and difficult-to-process nano-powders.ProprietaryNanostructuredSiliconManufacturingProcess:Alow-costmassmanufacturingprocessthatpreventssiliconparticleswellingandbreakagethroughnanoscalepores.Thisprocessusesmicrometer-sizedpowderandinexpensivemetallurgicalsilicon,replacingcostlyengineeredparticlesanddifficult-to-processnano-powders.
High-Capacity Li-ion Cells for Drones: Currently developing a 10Ah pouch cell specifically optimized for drone and unmanned systems applications. This cell achieves an energy density of 300 Wh/kg, with a development target of 340 Wh/kg. It demonstrates stable performance over 250 cycles, maintaining excellent performance even at peak discharge rates of 5C-6C and continuous operation at 1C.High-CapacityLi-ionCellsforDrones:Currentlydevelopinga10Ahpouchcellspecificallyoptimizedfordroneandunmannedsystemsapplications.Thiscellachievesanenergydensityof300Wh/kg,withadevelopmenttargetof340Wh/kg.Itdemonstratesstableperformanceover250cycles,maintainingexcellentperformanceevenatpeakdischargeratesof5C-6Candcontinuousoperationat1C.
Core AdvantagesCoreAdvantages
Proprietary Nano-Porous Silicon Technology: Possessing exclusive technology that addresses the inherent volumetric expansion problem of silicon by absorbing the expansion within its nano-structure, reducing swelling to less than 1%. This is a key competitive advantage that significantly enhances battery life and stability.ProprietaryNano-PorousSiliconTechnology:Possessingexclusivetechnologythataddressestheinherentvolumetricexpansionproblemofsiliconbyabsorbingtheexpansionwithinitsnano-structure,reducingswellingtolessthan1%.Thisisakeycompetitiveadvantagethatsignificantlyenhancesbatterylifeandstability.
Superior Battery Performance Enhancement: The ability to increase energy density by up to 40% and charging speed by up to three times compared to conventional graphite anodes. This contributes to extended range for electric vehicles (EVs) and reduced charging times.SuperiorBatteryPerformanceEnhancement:Theabilitytoincreaseenergydensitybyupto40%andchargingspeedbyuptothreetimescomparedtoconventionalgraphiteanodes.Thiscontributestoextendedrangeforelectricvehicles(EVs)andreducedchargingtimes.
High Compatibility with Existing Manufacturing Processes: Offering a solution fully compatible with current lithium-ion battery manufacturing lines and equipment. This minimizes the transition costs and risks for battery manufacturers.HighCompatibilitywithExistingManufacturingProcesses:Offeringasolutionfullycompatiblewithcurrentlithium-ionbatterymanufacturinglinesandequipment.Thisminimizesthetransitioncostsandrisksforbatterymanufacturers.
Cost-Efficient and Sustainable Production: Utilizing readily available, low-cost metallurgical-grade silicon as raw material and an efficient casting process to reduce production costs and achieve a six-fold reduction in carbon footprint, representing an eco-friendly approach.Cost-EfficientandSustainableProduction:Utilizingreadilyavailable,low-costmetallurgical-gradesiliconasrawmaterialandanefficientcastingprocesstoreduceproductioncostsandachieveasix-foldreductionincarbonfootprint,representinganeco-friendlyapproach.
Scalable Production Capacity: Operating an in-house facility near Amsterdam, Netherlands, with an annual production capacity of 25 tons, and a production process designed for easy scalability up to 300 tons per line annually. This demonstrates the capability to meet increasing market demand.ScalableProductionCapacity:Operatinganin-housefacilitynearAmsterdam,Netherlands,withanannualproductioncapacityof25tons,andaproductionprocessdesignedforeasyscalabilityupto300tonsperlineannually.Thisdemonstratesthecapabilitytomeetincreasingmarketdemand.
Strong Research and Development & Collaboration Network: Accelerating technology validation and development through close collaboration with renowned research institutions like ZSW (Zentrum für Sonnenenergie- und Wasserstoff-Forschung Baden-Württemberg) and Delft University of Technology (TU Delft), as well as automotive and battery manufacturers.StrongResearchandDevelopment&CollaborationNetwork:AcceleratingtechnologyvalidationanddevelopmentthroughclosecollaborationwithrenownedresearchinstitutionslikeZSW(ZentrumfürSonnenenergie-undWasserstoff-ForschungBaden-Württemberg)andDelftUniversityofTechnology(TUDelft),aswellasautomotiveandbatterymanufacturers.
Target IndustriesTargetIndustries
Electric Vehicle (EV) IndustryElectricVehicle(EV)Industry
Drone and Unmanned Systems IndustryDroneandUnmannedSystemsIndustry
Consumer Electronics Industry (smartphones, laptops, etc.)ConsumerElectronicsIndustry(smartphones,laptops,etc.)
E-bike and Scooter IndustryE-bikeandScooterIndustry
Medical Devices IndustryMedicalDevicesIndustry
Renewable Energy Storage SystemsRenewableEnergyStorageSystems
Major MarketsMajorMarkets
South Korea (CES 2025 pitching competition participant), Taiwan (CES 2025 pitching competition participant), Japan (CES 2025 pitching competition participant)SouthKorea(CES2025pitchingcompetitionparticipant),Taiwan(CES2025pitchingcompetitionparticipant),Japan(CES2025pitchingcompetitionparticipant)
Netherlands (headquarters and production facility), Germany (ZSW research collaboration), Switzerland (CES 2025 pitching competition participant)Netherlands(headquartersandproductionfacility),Germany(ZSWresearchcollaboration),Switzerland(CES2025pitchingcompetitionparticipant)
United States (CES 2025 Best Startup Award recipient)UnitedStates(CES2025BestStartupAwardrecipient)
Certifications/PatentsCertifications/Patents
Patents: Nano-structured carbon coated silicon material and manufacturing method for use in lithium ion based secondary batteries (NL2027980B1). This patent covers a silicon-based material comprising micron-sized silicon particles with a nano-porous structure and its manufacturing method.Patents:Nano-structuredcarboncoatedsiliconmaterialandmanufacturingmethodforuseinlithiumionbasedsecondarybatteries(NL2027980B1).Thispatentcoversasilicon-basedmaterialcomprisingmicron-sizedsiliconparticleswithanano-porousstructureanditsmanufacturingmethod.
Awards: Winner of the 'Best Startup Award' at the CES 2025 Cross-Border Pitching Competition. This signifies international recognition for the excellence of its innovative silicon anode material technology.Awards:Winnerofthe'BestStartupAward'attheCES2025Cross-BorderPitchingCompetition.Thissignifiesinternationalrecognitionfortheexcellenceofitsinnovativesiliconanodematerialtechnology.
Technology Validation: Validation of low expansion rate (<1%) and high cycle life of nano-porous silicon anodes through collaborations with ZSW and Delft University of Technology.TechnologyValidation:Validationoflowexpansionrate(<1%)andhighcyclelifeofnano-poroussiliconanodesthroughcollaborationswithZSWandDelftUniversityofTechnology.
Introduction
Location
Bijlestaal 54A, 1721 PW Broek op Langedijk, Netherlands
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Bijlestaal 54A, 1721 PW Broek op Langedijk, Netherlands