Cell Engineer - Lithium Metal

We are a stealth-mode battery technology company developing next-generation high-energy-density cells for aerospace and advanced mobility applications
. Our focus is on lithium metal–based cell architectures that significantly exceed the performance limits of conventional lithium-ion systems, while remaining grounded in manufacturability and safety.

The company is backed by experienced operators and technical leadership, with a clear path from R&D to prototype and pre-production deployment.

We are seeking a Cell Engineer with hands-on lithium metal battery experience to play a core role in cell design, development, and scale-up. This position sits at the heart of our technical roadmap and will directly influence cell architecture, materials choices, and product direction.

You will work closely with a small, senior technical team to move from lab-scale concepts to robust prototype cells suitable for demanding, high-reliability applications.

• Design and optimise lithium metal cell architectures (lithium foil, anode-free, solid/semi-solid or hybrid systems)
• Lead hands-on cell build activities, including electrode preparation, cell assembly, and formation
• Define and evaluate electrolytes, separators, interfaces, and stack configurations
• Drive improvements in energy density, cycle life, safety, and efficiency

• Plan and execute electrochemical testing (cycling, rate performance, calendar life, abuse testing)
• Diagnose and mitigate lithium metal failure modes such as:
• Interfacial instability and degradation
• Use experimental data to iterate cell designs rapidly and systematically
• Support scale-up from coin and pouch cells to larger-format prototypes
• Collaborate with process engineers and external partners to improve repeatability and yield
• Identify manufacturability, cost, and supply-chain risks early in development

• Maintain rigorous experimental documentation and technical reports
• Contribute to patent filings and IP strategy
• Support technical discussions with partners, customers, and stakeholders as needed

• MSc or PhD in Electrochemistry, Materials Science, Chemical Engineering, or a related field
• Direct, hands-on experience with lithium metal batteries (academic, startup, or industrial)
• Strong understanding of:
• Lithium metal anode behavior and SEI formation
• Electrolyte chemistry and interfacial phenomena
• High-energy-density cell trade-offs
• Demonstrated ability to build, test, and debug real cells
  , not just model them
• Comfortable operating in a fast-paced, early-stage environment with limited structure

• Solid-state or semi-solid electrolyte systems
• Pouch cell or larger-format lithium metal development
• Aerospace, defense, or other high-reliability battery applications
• Transition from lab-scale R&D to pilot or pre-production
• Familiarity with battery safety and qualification standards