LeydenJar Technologies
LeydenJar Technologies develops and manufactures Silyte™, a 100% pure silicon anode for lithium-ion batteries, using a proprietary PECVD process to serve battery cell manufacturers and consumer electronics OEMs with higher energy density battery solutions.
- Company typePrivate
- Founded2016
- HeadquartersLeiden, Netherlands
- Headcount51–100
- GTM typeB2B
- OfferingHardware or Manufacturing
What LeydenJar Technologies does
LeydenJar Technologies B.V., founded in 2016 as a spin-out from Dutch research organization TNO (formerly ECN), develops and manufactures Silyte™ — 100% pure silicon anode foil for lithium-ion batteries. The company is headquartered in Leiden, Netherlands, with manufacturing and process R&D in Eindhoven and commercial offices in Richmond, Virginia and Taipei, Taiwan. Its customers are battery cell manufacturers (e.g., Highpower Technology) and consumer electronics OEMs seeking higher energy density than graphite anodes can deliver, with primary target use cases in wearables, smartphones/tablets, and e-mobility.
The core technology is a proprietary Plasma-Enhanced Chemical Vapor Deposition (PECVD) process, adapted from the semiconductor industry, that grows a porous nano-column silicon structure directly onto copper foil — yielding 100% pure silicon anodes without graphite, binders, or additives. This architecture accommodates silicon's volume expansion during lithiation, eliminating the need for the heavy external pressure required by competing silicon-dominant designs. Silyte™ is reported at 1,350 Wh/L volumetric energy density (described as a world record at stack level), 50% more capacity in the same form factor, 80% charge in 7 minutes, 500+ cycles at 80% capacity retention without external pressure, and an 85% reduction in CO₂ emissions versus graphite anode production. The dry roll-to-roll process is compatible with existing lithium-ion cell production lines without retooling.
Commercially, LeydenJar operates a B2B enterprise sales motion, selling Silyte™ anode rolls directly to cell manufacturers and device OEMs, supplemented by production equipment development agreements and technical consultancy. The company is currently in sampling and pre-commercial qualification with qualified partners; its first mass-production facility, PlantOne at Strijp-T in Eindhoven (70 MWh capacity, ~125,000 m² per year of Silyte™), is under construction for a 2027 production start. Total disclosed funding exceeds €100M across Series A (2021), EIB debt (2022), a 2025 round including customer co-funding, and a 2026 capital raise led by Dutch pension fund ABP (via APG) with participation from TNO, Extantia, Invest-NL, and others.
LeydenJar Technologies firmographics
Firmographics- Name
- LeydenJar Technologies
- Legal name
- Leydenjar Technologies B.V.
- Website
- https://leyden-jar.com
- Company type
- Private
- Founded year
- 2016
- Operating status
- Operating
- Headcount range
- 51–100 employees
- Short description
- LeydenJar Technologies develops and manufactures Silyte™, a 100% pure silicon anode for lithium-ion batteries, using a proprietary PECVD process to serve battery cell manufacturers and consumer electronics OEMs with higher energy density battery solutions.
- Ownership category
- akta.pro rank
LeydenJar Technologies industry classification
Industry- Product category
- Battery Materials
- NAICS
- Battery Manufacturing (33591), Electrical Equipment Manufacturing (3353)
- SIC
- Electronic & Other Electrical Equipment (No Computer Equip) (3600)
- akta.pro primary industry
- Anode Materials Manufacturing (Graphite, Silicon, LTO) (EUAFABAC)
Keywords
Where LeydenJar Technologies is headquartered
LocationHeadquarters
- HQ city
- Leiden
- HQ country
- Netherlands
- HQ region
- Europe
Offices5 records
Markets served
LeydenJar Technologies business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
- Cost components
- Technology or R&D, Infrastructure, Personnel, Supply Chain, Operations
Revenue model
- Silicon Anode Material Sales: Sale of Silyte pure silicon anode rolls to cell manufacturers and device OEMs. Anode material is sold in roll format compatible with existing battery cell manufacturing lines. Revenue from customer funding and equipment development agreements.
- Production Equipment Development: Development and installation of PECVD production equipment for silicon anode manufacturing. €10 million customer funding from US electronics company for equipment development.
- Technology Licensing and Consultancy: Consultancy services for deployment and rollout of silicon anode production technology. Company provides technical support to customers integrating the technology.
Go-to-market motion3 records
Distribution channels4 records
Marketing channels7 records
LeydenJar Technologies product offering
Product offeringCore offering
LeydenJar Technologies develops and produces Silyte™, a 100% pure silicon anode foil for lithium-ion batteries manufactured via a proprietary Plasma-Enhanced Chemical Vapor Deposition (PECVD) process. The company supplies silicon anode rolls directly to battery cell manufacturers and device OEMs, enabling 50% higher energy density, 80% charge in 7 minutes, 500+ cycle life without external pressure, and 85% lower CO2 emissions compared to graphite anodes.
Product overview
LeydenJar Technologies offers a focused portfolio centered on its core Silyte™ product — the world's first commercially viable 100% pure silicon anode for lithium-ion batteries. This breakthrough anode material enables 50% higher energy density, ultra-fast charging, and 85% lower CO₂ emissions compared to graphite anodes. The company complements its product with PlantOne, a mass production facility under construction in Eindhoven, scheduled to begin commercial anode foil production in 2027. LeydenJar's proprietary PECVD (Plasma-Enhanced Chemical Vapor Deposition) manufacturing process, adapted from semiconductor industry technology, enables scalable and sustainable anode production.
Differentiator
Problem solved
Functional benefit
Brands
- Silyte™: 100% pure silicon anode product for lithium-ion batteries, offering 1350 Wh/L volumetric energy density, 50% more capacity, 80% charge in 7 minutes, 500+ cycles at 80% capacity retention, and 85% lower CO₂ emissions compared to graphite production.
Products and services
- Silyte™ Silyte is LeydenJar's flagship 100% pure silicon anode foil for lithium-ion batteries, offering 1,350 Wh/L volumetric energy density at stack level, 50% more capacity in the same form factor, 80% charge in 7 minutes, 500+ cycles at 80% capacity retention without external pressure, and 85% lower CO2 emissions in production. Sold in roll format to battery cell manufacturers and device OEMs for integration into existing roll-to-roll lithium-ion production lines.
- Silicon Anode Production Technology Licensing and Consultancy Consultancy services and technology licensing for deployment and rollout of PECVD silicon anode production technology. LeydenJar provides technical support to customers integrating the technology, including development of PECVD production equipment for partners.
Quantifiable outcome
- Energy density increased by 50-70% compared to conventional graphite anodes
- +6 more outcomes
Companies that use LeydenJar Technologies
Customer profileNamed customers5 records
Segments4 records
Ideal customer profiles3 records
LeydenJar Technologies technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature5 records
LeydenJar Technologies partnerships and signals
Strategic signalPartnerships
Six partnerships are on record, tiered core and minor.
- Highpower TechnologycoreStrategic collaboration with Chinese battery manufacturer for cell production using LeydenJar's silicon anodes. Highpower integrates Silyte into advanced cell designs for mass production. Partnership includes joint development with OEMs for tailored batteries. Thousands of prototype cells already shipped to consumer electronics customers. Full production planned at 10,000s batteries for 2026 qualification.
- BMWcorePartner in greenSPEED consortium for sustainable EV battery development. Project aims to significantly increase energy density while reducing energy consumption by almost a third and production costs up to 20%. Consortium includes 11 parties from Germany, France, Netherlands, Austria, and Luxembourg. LeydenJar supplies pure silicon anode foils for EV battery integration.
- VARTAcorePartner in greenSPEED consortium for sustainable EV battery development. Project coordinated by Virtual Vehicle and co-financed by Horizon Europe. VARTA contributes battery expertise alongside BMW and other partners.
- Virtual VehicleminorCoordinator of greenSPEED European consortium project for sustainable EV batteries. Research organization combining automotive industry expertise.
- Battery Competence ClusterminorPart of BatteryNL and Battery Competence Cluster networks supporting Dutch battery ecosystem development.
- BatteryNLminorDutch national battery ecosystem initiative. LeydenJar participates in network supporting industry collaboration and development.
Scale indicators9 records
Recent moves8 records
Expansion highlights6 records
LeydenJar Technologies competitors and assessment
Company assessmentDirect peers
- Sila Nanotechnologies: Sila Nanotechnologies develops silicon-based anode materials for lithium-ion batteries targeting consumer electronics and automotive applications. It is the most direct competitor to LeydenJar in the silicon-anode space, with comparable partnerships (Daimler, Siemens) and a similar focus on drop-in replacement anodes.
- Group14 Technologies: Group14 Technologies manufactures silicon-carbon composite anode materials (SCC55™) for lithium-ion batteries. It pursues a similar B2B materials supplier model serving cell manufacturers and OEMs, with comparable capital intensity and Porsche/SK backing as LeydenJar's institutional and strategic investors.
- Amprius Technologies: Amprius Technologies produces 100% silicon anodes using a similar nanowire-based architecture for lithium-ion batteries. As a publicly traded peer in the silicon-anode category, it offers the closest publicly observable benchmarks for LeydenJar's commercial trajectory and unit economics.
- Enevate: Enevate develops silicon-dominant battery technology with rapid charging capabilities for EVs and consumer devices. It shares LeydenJar's focus on silicon-anode chemistry enabling fast charging and high energy density, and serves overlapping OEM customers in the wearables and mobility segments.
- Nexeon: Nexeon is a UK-based silicon anode materials company developing drop-in silicon anode technology for lithium-ion batteries. It is a comparable European peer pursuing similar cell manufacturer partnerships and offering competing silicon-anode solutions in the same battery materials category.
Emerging players
- Enovix Corporation: Enovix develops 3D-stacked silicon battery cells targeting consumer electronics including smartphones and wearables. While it sells finished cells rather than anode materials, it addresses the same end-customer pain point (form-factor-constrained energy density) using silicon-based chemistry.
- Solid Power: Solid Power develops all-solid-state battery cells with silicon-anode components for EV applications. As a publicly traded peer in advanced battery chemistry with BMW/Ford/VW partnerships, it represents the solid-state trajectory that competes for the same next-gen battery investment dollars as LeydenJar's silicon-anode approach.
- Nanoramic Laboratories: Nanoramic (formerly FastCAP Systems) develops carbon-silicon anode technology using proprietary end-of-life recycling for lithium-ion batteries. It overlaps with LeydenJar in targeting EV and consumer electronics battery markets with silicon-enhanced chemistry.
- NEO Battery Materials: NEO Battery Materials is a Canadian developer of silicon anode materials for lithium-ion batteries targeting EV applications. It is a smaller emerging player pursuing similar B2B anode materials commercialization with comparable customer qualification timelines.
- StoreDot: StoreDot develops silicon-dominant battery cells with extreme fast-charging capabilities (XFC) for EVs and consumer devices. While it sells finished cells rather than materials, it competes in the same design-win cycle at major OEMs pursuing similar energy-density and fast-charging value propositions.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat4 records
Key risks6 records
Key highlights7 records
Customer concentration
LeydenJar Technologies social profiles
Digital presenceLeydenJar Technologies financial estimates
Financial estimateRevenue estimate
Valuation estimate
LeydenJar Technologies leadership team
Management profileNumber of profiles
Profiles14 records
LeydenJar Technologies funding detail
Funding detailFunding overview
Funding rounds9 records
Investors15 records
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
LeydenJar Technologies M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about LeydenJar Technologies
What does LeydenJar Technologies do?
LeydenJar Technologies develops and produces Silyte™, a 100% pure silicon anode foil for lithium-ion batteries manufactured via a proprietary Plasma-Enhanced Chemical Vapor Deposition (PECVD) process. The company supplies silicon anode rolls directly to battery cell manufacturers and device OEMs, enabling 50% higher energy density, 80% charge in 7 minutes, 500+ cycle life without external pressure, and 85% lower CO2 emissions compared to graphite anodes.
Is LeydenJar Technologies a public or private company?
LeydenJar Technologies is a private company. It is classified as venture growth investor backed and is currently operating.
When was LeydenJar Technologies founded?
LeydenJar Technologies was founded in 2016. It employs 51 to 100 people.
Where is LeydenJar Technologies based?
LeydenJar Technologies is headquartered in Leiden, Netherlands, in the Europe region.
How does LeydenJar Technologies make money?
Three revenue lines are on record. Silicon Anode Material Sales are the primary driver. The others are production Equipment Development and technology Licensing and Consultancy.
Who are LeydenJar Technologies's main competitors?
Direct peers on record are Sila Nanotechnologies, Group14 Technologies, Amprius Technologies, Enevate and Nexeon. Emerging players are Enovix Corporation, Solid Power, Nanoramic Laboratories, NEO Battery Materials and StoreDot.
Does LeydenJar Technologies have an API?
No public API is recorded for LeydenJar Technologies.
What industry is LeydenJar Technologies in?
LeydenJar Technologies's product category is Battery Materials. Its primary akta.pro industry code is EUAFABAC, Anode Materials Manufacturing (Graphite, Silicon, LTO). Its NAICS code is 33591 and its SIC code is 3600.