Internship – Battery Program

About us:

In an effort to realize ‘carbon neutrality’, advanced battery technologies are being developed and explored across Europe. TNO at Holst Centre in Eindhoven works with a range of thin-film technologies that have very interesting potential in the fast-growing domain of Energy Storage. Devices that are being developed include next-generation batteries aimed at being intrinsically safe, having higher capacity and faster charging times compared to the current state-of-the-art batteries on the market.

About the role:

Our technical focus in the battery domain includes testing lithium and sodium-ion batteries, improving scalable production techniques of battery components, exploring materials related to emerging battery concepts such as all-solid-state and metal-air batteries, and improving the performance of existing battery materials leveraging our in-house thin-film deposition techniques. Durability and scalability of battery components are high on the agenda.


To strengthen our team, we are actively looking for a research intern enrolled in bachelor or master studies with a background in chemistry, electrochemistry, physics or materials science. The position requires flexibility to handle various tasks simultaneously. You will be properly supervised during your work placement and be given the scope to get the best out of yourself. Naturally, we provide suitable work placement compensation (~€500/month).

Key responsibilities:

The internship period is strictly between 6-9 months, and within this timeframe, your day-to-day activities in the laboratory will involve:

  • Synthesis of solid electrolyte materials

  • Working on optimizing scalable production routes (mainly dry) for electrode and electrolyte layers

  • Assembling and testing coin and pouch cells for lithium- and sodium-ion batteries

  • Assisting in setting up new experimental tools

  • Contributing to the research activities related to next-generation battery concepts such as metal-air batteries

  • Cooperating in thin-film deposition experiments to solve challenges in battery technology

  • Participating in group meetings, provide feedback, discuss results, and propose solutions to various challenging aspects

  • Preparing a technical report summarizing the work done during your stay

If you would like to apply, please send your CV and motivation letter to, and