Job Description

PhD Student in Polymer Electrolytes for Solid State Batteries

The Paul Scherrer Institute PSI is the largest research institute for natural and engineering sciences within Switzerland. We perform cutting-edge research in the fields of future technologies, energy and climate, health innovation and fundamentals of nature. By performing fundamental and applied research, we work on sustainable solutions for major challenges facing society, science and economy. PSI is committed to the training of future generations. Therefore, about one quarter of our staff are post-docs, post-graduates or apprentices. Altogether, PSI employs 2300 people. 
For the Battery Electrodes and Cells Group we are looking for a

Your tasks

You will work on a Swiss National Science Foundation project dedicated to understanding and improving ion transport in multilayer polymer electrolytes MLPEs. As a PhD student, you will be responsible for experimental development within the materials and electrochemistry work packages. 

• Designing and synthesizing single layer and multilayer polymer electrolytes, including systems with varying polymer chemistry, salt content, and inorganic filler loading 
• Performing electrochemical characterization to assess ionic conductivity, electrochemical stability, and interfacial impedance 
• Preparing samples for advanced operando methods (neutron imaging, microscopy workflows) in collaboration with project partners 
• Supporting the development of polymer electrolyte integration into porous battery electrodes for long term cycling and aging studies 
• Analyzing experimental data, writing scientific publications, and presenting results at international conferences 
• Collaborating within a multidisciplinary environment across PSI and international institutions

Your profile

• Master’s degree in Materials Science, Polymer Chemistry, Polymer Physics, Chemistry, Electrochemistry, Chemical Engineering, or a closely related field 
• Strong interest in polymer electrolytes, polymer chemistry, polymer physics, or solid state battery materials 
• Motivation to work in an experimental laboratory environment and to engage in interdisciplinary collaboration 
• Good communication skills and an excellent command of English 
• Ability to work independently, manage complex experimental workflows, and contribute actively to team based research

We offer

Our institution is based on an interdisciplinary, innovative and dynamic collaboration. You will profit from a systematic training on the job, in addition to personal development possibilities and our pronounced vocational training culture. If you wish to optimally combine work and family life or other personal interests, we are able to support you with our modern employment conditions and the on-site infrastructure.
For further information, please contact Dr Sigita Trabesinger, email sigita.trabesinger@psi.ch. 
Please submit your application online by 20 May 2026 (including addresses of referees) for the position as a PhD Student (Index-Nr. 5312-28163).
Paul Scherrer Institute, Human Resources Management, Serdal Varol, 5232 Villigen PSI, Switzerland
www.psi.ch