PhD Position Solid Electrolytes for Low‑Pressure Next‑Gen Batteries

Do you want to be part of the energy transition and help develop next generation energy storage systems? Then this could be what you are looking for

Job description

We are seeking a highly motivated doctoral candidate with a strong passion for battery science and a drive to develop next-generation energy storage systems. This position is part of the 'No Pressure', OTP project funded by NWO that aims to address the pressure challenge hindering the large-scale commercialization of solid-state batteries, specifically focussing on the PCVD 100% silicon anodes of LeydenJar Technologies.

As a PhD researcher, you will work at the interface of fundamental science and applied technology. Your main focus will be the improvement and development of solid electrolytes to achieve better (electro)chemical stability with silicon anodes. In parallel, you will investigate strategies to reduce the stack pressure required for cycling using functional interlayers. You will use techniques such as EIS, solid-state NMR, FIB-SEM, and various electrochemical methods to characterize materials and evaluate interfacial stability. These insights will be key to understanding failure mechanisms and designing more robust, long-lasting battery systems.

We especially welcome candidates with experience in the synthesis and characterization of sulfur-based solid electrolytes for Li-ion batteries, and/or the use of silicon as an anode material. Given the combined fundamental and applied nature of the project, experience with both atomic scale material design as well as processing is considered an asset.

This role offers the opportunity to work in a highly collaborative, interdisciplinary environment where fundamental research closely connects to industrial application. You will engage with leading experts in materials science, electrochemistry, and battery technology, and help shape the future of sustainable energy storage. If you are curious, eager to work with advanced experimental techniques, and motivated to make a tangible impact on the energy transition, we encourage you to apply.

The Storage of Electrochemical Energy group of the Radiation Science and Technology department focusses on fundamental processes in electroceramics and next-generation batteries using experimental probes as neutron and X-ray scattering, as well as solid state NMR and computational approaches including density functional theory calculations. The direct access to these facilities and collaborative atmosphere represents a stimulating environment for research and development.

Job requirements

• Master's degree in (Applied) Physics, Chemistry, Chemical Engineering, Materials Science, or a closely related field
• Affinity for energy storage, with an interest in materials development and electrochemical systems, is desirable
• Experience with the synthesis or processing of sulfide solid electrolytes or with silicon anodes is desirable
• You enjoy working in a team and bring excellent organizational, communication and interpersonal skills
• English proficiency is required

TU Delft (Delft University of Technology)

Delft University of Technology is built on strong foundations. As creators of the world-famous Dutch waterworks and pioneers in biotech, TU Delft is a top international university combining science, engineering and design. It delivers world class results in education, research and innovation to address challenges in the areas of energy, climate, mobility, health and digital society. For generations, our engineers have proven to be entrepreneurial problem-solvers, both in business and in a social context.

At TU Delft we embrace diversity as one of our core values and we actively engage to be a university where you feel at home and can flourish. We value different perspectives and qualities. We believe this makes our work more innovative, the TU Delft community more vibrant and the world more just. Together, we imagine, invent and create solutions using technology to have a positive impact on a global scale. That is why we invite you to apply. Your application will receive fair consideration.

Challenge. Change. Impact

Faculty Applied Sciences

With more than 1,100 employees, including 150 pioneering principal investigators, as well as a population of about 3,600 passionate students, the Faculty of Applied Sciences is an inspiring scientific ecosystem. Focusing on key enabling technologies, such as quantum- and nanotechnology, photonics, biotechnology, synthetic biology and materials for energy storage and conversion, our faculty aims to provide solutions to important problems of the 21st century. To that end, we educate innovative students in broad Bachelor's and specialist Master's programmes with a strong research component. Our scientists conduct ground-breaking fundamental and applied research in the fields of Life and Health Science & Technology, Nanoscience, Chemical Engineering, Radiation Science & Technology, and Engineering Physics. We are also training the next generation of high school teachers.

about this vacancy, please contact Dr. Swapna Ganapathy ) or Prof. dr. ir. Marnix Wagemaker ).

Application procedure

Are you interested in this vacancy? Please apply no later than 15 January 2026 upload the following documents:

• A cover letter addressed to Dr. Swapna Ganapathy, describing your motivation for pursuing a PhD and your interest in this position
• A CV including information on your qualifications, previous projects and/or publications. Links to other online materials are welcome
• Academic transcripts with courses and grades (BSc and MSc)
• A PDF of your master's thesis or another relevant project report

Doing a PhD at TU Delft requires English proficiency at a certain level to ensure that the candidate is able to communicate and interact well, participate in English-taught Doctoral Education courses, and write scientific articles and a final thesis. For more details please check the Graduate Schools Admission Requirements.

Please note:

• You can apply online. We will not process applications sent by email and/or post.
• As part of knowledge security, TU Delft conducts a risk assessment during the recruitment of personnel. We do this, among other things, to prevent the unwanted transfer of sensitive knowledge and technology. The assessment is based on information provided by the candidates themselves, such as their motivation letter and CV, and takes place at the final stages of the selection process. When the outcome of the assessment is negative, the candidate will be informed. The processing of personal data in the context of the risk assessment is carried out on the legal basis of the GDPR: performing a public task in the public interest. You can find more information about this assessment on our website about knowledge security.
• Please do not contact us for unsolicited services.

Faculty/Department: Faculty of Applied Sciences

Salary range: €3059 - €3881

Hours per week: 36-40

FTE: 1,0

Submission is possible until: 15 Jan 2026

ID job: 2902