Skellium

Passivation Layers on Lithium Metal Anodes

Job Category: Master Thesis
Job Type: Full Time
Job Location: Aachen
job offering skellium

Reshape the Future of Energy. With Us.

At Skellium, we’re not just building better batteries — we’re redefining what’s possible for electric mobility. Based in Aachen and backed by the EXIST Research Transfer programme, we’ve developed a breakthrough manufacturing process for lithium-metal anodes that makes next-generation solid-state batteries safer, more efficient, and ready for scale. Think: EVs with 1,000+ km range. That’s the world we’re building.

We’re a small, ambitious team at the very beginning of something big — and we’re looking for a Master’s student who wants to be part of it.


Master’s Thesis | Passivation Layer — Lithium-Metal Anodes

Your Mission

Lithium-metal anodes are among the most promising — and most challenging — materials in next-generation battery technology. Highly reactive by nature, their performance and safety hinge on what happens at the surface. You will tackle this challenge head-on by systematically investigating how targeted passivation layers can be formed, controlled, and optimised on lithium-metal anodes — and translate your findings directly into Skellium’s production process.

What You’ll Work On

  • Experimentally implement and compare different passivation approaches, including CO₂ atmospheres (Li₂CO₃) and fluorine-containing additives (LiF)
  • Characterise the resulting surface layers using SEM, XPS, and optical microscopy
  • Evaluate electrochemical stability and performance for each passivation method
  • Draw direct comparisons between approaches to identify the most promising routes
  • Develop concrete recommendations for targeted surface passivation in the context of Skellium’s anode production

Who You Are

  • Currently enrolled in an Engineering programme (Industrial Engineering preferred) at a top European university
  • Solid understanding of the battery market and its key dynamics
  • Structured and self-driven — you take ownership and follow through
  • Curious about complex problems and energised by the idea of working at the frontier of deep tech
  • A team player who communicates openly and contributes to a collaborative culture
  • Proficient in PowerPoint, Word, and Excel

What You Get

  • Real responsibility from day one in an early-stage deep tech start-up
  • Direct access to founders and industry experts
  • Flexible working arrangements and clearly scoped tasks
  • The chance to shape Skellium’s strategy — your thesis won’t sit in a drawer
  • A front-row seat to building a company from the ground up

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