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LeydenJar Technologies BV is a European based high tech venture, developing pure silicon anodes and its production technology, to boost the energy density of Li-ion battery cells for consumer electronics, electric vehicles, and residential energy storage.



LeydenJar Technologies Team

Our team harbours capabilities in battery technology, plasma depositioning, production, and high tech venturing, and is closely aligned with our technology institute- and industrial partners.

Christian Rood

Co-founder, CEO

Co-founded LeydenJar Technologies in April 2016. Chris has a background in high tech venturing and investments and holds a MSc. in Business from Erasmus University and an executive MBA from IMD.

Gabriël de Scheemaker

Co-founder, CFO/COO

Co-founder of LeydenJar Technologies. Before this, Gabriël held senior positions at Shell’s renewable energy division and in corporate venture capital. Gabriël holds a degree in Electrical Engineering from Delft University and an MBA from NYU Stern School of Business.

Yiseop Ahn


Before joining LeydenJar Technologies, Yiseop was a senior scientist at leading battery manufacturers Samsung, LG Chem and A123. Yiseop is a Korean citizen and holds a masters degree in Inorganic Chemistry from Chonnan University.

Ewout Lubberman

Head of Product

Before joining LeydenJar Technologies, Ewout was an associate at NPM Capital, a leading Dutch private equity investment firm. Ewout holds a MSc. Applied Physics and a BA. Philosophy and completed his studies at the University of Groningen and Stanford University.

John Charité


John has extensive experience as CFO at, among others, SNS parts Automotive and Primeline, ING pension consultancy and as Senior Business Consultant at CCS and as a independent entrepreneur with assignments in various branches.

Monique Lamhut

Lab Technician

BS in Veterinary Medicine from Universidade Federal Fluminense with a background in microbiology.

Dan Luo

Battery scientist

MSc in chemical engineering at Huaqiao University.

Frans Ooms

Lab management

Ir in material science & technology at Delft University of Technology, extensive experience in battery & laboratory technology.

Zhaolong Li

Battery scientist

PhD in electrochemistry at the Delft University of Technology.

Pavel Kudlacek

Scale-up and Production Manager

Before joining LeydenJar Technologies, Pavel was leading from lab to fab development at Holst Centre/TNO. Pavel holds a PhD degree in plasma and solid-state physics from University of West Bohemia and throughout his career gained extensive experience in thin film processing and coating equipment.

Nienke Piepers


BS Facility Management at Hogeschool Diedenoort (HAN).

Rohan Sivaraj

Materials Research Engineer

Before joining LeydenJar Technologies, Rohan spent 6 years  as an engineer in the oil and gas industry in Australia. Rohan holds a MSc. (Materials Science and Engineering) from TU Delft and a B.Eng (Hon I)/B.Comm (Distinction) from UNSW in Australia.

Internship battery R&D (Leiden)

Job offer

Work to further improve our cell technology – (Applied) University level, minimum 5 months. Interested? Please contact us.

Anna Hobo

Graduate Student

Master Student Material Science and Engineering at the TU Delft.

Arjen Didden


PhD in nanotechnology at the Delft University of Technology, worked with engineering company in the energy industry.

Joris Maas

Process engineer

Ing in chemical engineering of Fontys University of Applied Sciences. Background in process engineering with Philips, NXP, and Holst Centre.

Rob Boer

Equipment engineer

Experienced equipment engineer in PECVD with background in solar cell equipment.

Tom van der Wielen

Head of AI & IT

MSc in Data Science and Entrepreneurship at JADS (Technical University of Eindhoven & Tilburg University), BS Embedded System Engineering at Fontys University of Applied Sciences.

Colin Pepers

Equipment engineer

Colin has a background in mechatronics and precision systems.

Ralph van der Linde


Bachelor Student Applied Science at Fontys University of Applied Sciences.

Thijs Dubbelink

Battery scientist

MSc in Applied physics at University of Twente.

Tom Homewood

Battery scientist

PhD in electrochemistry at the University of Southampton.

Tijmen Geertsen

Process engineer

BS in applied science at Fontys University of Applied Sciences, Background in process engineering.

Internship process engineering (Eindhoven)

job offer

Work to further improve our PECVD technology platform – (Applied) University level, minimum 5 months. Interested? Please contact us.

Board of Advisors LeydenJar

Dr. Klaus Brandt

Board of Advisors

Expertise: Battery technology and venturing. Experience: Co-founder/CEO/CTO of Moli Energy and Lithium Techn. Corp. Senior mgmt. positions at Duracell and Varta

Simone Vooijs

Board of Advisors

Expertise: Operational excellence and product development. Experience: Director Operations Tata Steel Europe.

Erik Göertz

Board of Advisors

Expertise: High tech industries and IP structuring. Experience: CEO Catena Group. Head of corporate development at NXP.

Martin Green

Board of Advisors

Expertise: Battery industry and strategy. Experience: MD of Johnson Matthey battery division + Group strategy director. Various non exec. roles in cleantech.


This project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 859148.