Postdoc in Electrochemical Impedance Spectroscopy and Advanced Signal Processing for Lithium-Ion Battery Diagnostics

Postdoc in Electrochemical Impedance Spectroscopy and Advanced Signal Processing for Lithium-Ion Battery Diagnostics

Jobbeskrivelse
At the Faculty of Engineering and Science, AAU Energy, a position as Postdoc in Electrochemical Impedance Spectroscopy and Advanced Signal Processing for Lithium-Ion battery diagnostics is available from 1st of March 2026 (or as soon as possible thereafter) for a two-year period.

Lithium-ion batteries are central to the global green transition, powering technologies ranging from electric vehicles to large-scale energy storage systems. Despite their widespread use, these batteries are subject to complex and interconnected degradation processes that can significantly impact performance and lifetime.
At the system level, degradation reduces both energy and power throughput, while at the fundamental level it originates from multiple root causes within the electrodes. This position offers a unique opportunity to investigate degradation mechanisms in depth using advanced analytics, signal processing, and frequency-domain diagnostics based on electrochemical impedance spectroscopy (EIS). The overarching goal is to enable root-cause identification of degradation through EIS-based methodologies.

Project Context
The position is part of the REVIVE project, a highly multidisciplinary project funded by the European Research Council (ERC), exploring anti-aging protocols to counteract degradation in lithium batteries. For this position, we seek an experienced EIS expert capable of performing precise EIS measurements and interpreting complex data using advanced post-processing techniques (e.g., Distribution of Relaxation Times or DRT). The postdoc will also contribute to the development of an experimental setup for lithium-ion battery testing integrated with an EIS system. Through design-of-experiment, the setup will be employed for controlled aging of the cells. Diagnostics and characterization will follow, including EIS data interpretation through
advanced signal processing tools, as well as through postmortem analysis via Scanning Electron Microscopy (SEM).
The project also offers the opportunity to collaborate closely with multi-domain experts within the REVIVEs team and other projects, as well as a range of stakeholders from a prestigious advisory board. This multidisciplinary and high-visibility environment provides excellent opportunities for professional and career development.

The position is offered in relation to the research group "Electric Mobility and Drives" and the Postdoc will be positioned in the section for Mechatronics.

Your role
You will:

• Contribute to the hands-on development and operation of experimental battery test setups
• Perform regular controlled battery aging experiments and EIS characterisation
• Conduct advanced postprocessing of battery EIS data (e.g., using distribution of relaxation times)
• Collaborate with the rest of the team across projects on modelling, optimization, and
  electrochemistry
• Contribute to high-impact publications and knowledge dissemination in flagship forums.
  Your profile

• Practical and theoretical knowledge on electrochemical impedance spectroscopy
• Signal processing and optimization skills for impedance data analysis
• Good hands-on skills working with battery electrode setups and EIS instrumentation
• Familiarity with post-mortem analysis (cell disassembly in glovebox) and characterization with scanning electron microscopy is a plus
• Experience with computational tools such as MATLAB, Python or relevant tools
• Ability to work independently and collaboratively in a multidisciplinary team
• Excellent oral and written communication skills in English and a commitment to publishing in
  leading scientific venues

What we offer

• A stimulating research environment with access to world-class labs and computational facilities
• Close supervision and collaboration within a dynamic, visible (ERC-funded), and international battery research team
• Opportunities for career development, including mentoring and support for developing independent research ideas
• Engagement in projects at the forefront of green energy transition and advanced battery technology

Qualification requirements
Appointment as postdoc requires academic qualifications at PhD level.

Who we are
AAU Energy is a dynamic and internationally oriented research department at Aalborg University, dedicated to developing clean and sustainable energy systems. Our research spans electrical, thermal, and mechatronic energy technologies, and we work closely with industry and academic partners to address real-world energy challenges. The department is located in both Aalborg and Esbjerg, and this position is based at the Aalborg campus. We offer advanced laboratory and workshop facilities, and a collaborative environment that supports innovation, knowledge sharing, and professional development.

Learn more about AAU Energy at www.energy.aau.dk.

How to apply
Your application must include the following:

• Application, stating reasons for applying, qualifications in relation to the position, and intentions and visions for the position
• Curriculum Vitae (CV)
• Diplomas (master's degree diploma and PhD diploma)
• List of publications, with an indication of the attached publications that you wish to be taken into account in the assessment. You may attach a maximum of ten publications.
• Documentation of teaching qualifications. Depending on which faculty you are applying for employment, please see guidelines for teaching portfolio at The Faculty of Engineering. If this is not enclosed, the applicant must enclose the reasons for this .
• Dissemination qualifications, including participation on committees or boards, participation in organisations etc.
• Additional qualifications in relation to the position
• References/recommendations

You can read more about the requirements for your application here.

The application must be submitted via Aalborg University’s recruitment system, which can be accessed under the job advertisement on Aalborg University's website.

Aalborg University wants to reflect the surrounding society and has diversity as a core value. Therefore, everyone, regardless of personal background and orientation, is encouraged to apply for the position.

Do you have any questions?
If you have any questions about the position, you are more than welcome to contact us.

For professional information, please contact Associate Professor Farshid Naseri, [email protected]
Other questions, please contact HR AAU Energy: [email protected].

Further information
Read more about our recruitment process here

The appointment process at Aalborg University involves a shortlisting process. You can read more about the shortlisting and appointment process here.

The hiring process at Aalborg University may include a risk assessment as a tool to identify potential risks associated with new hires, ensuring the safety, compliance, and integrity of the workplace.

Salary and terms of employment
The employment is in accordance with the Ministerial Order on the Appointment of Academic Staff at Universities (the Appointment Order) and the Ministerial Order on Job Structure for Academic Staff at Universities (in Danish) and protocol on certain terms of employment of academic staff at universities (in Danish).

Salary and terms of employment are in accordance with the collective agreement between the Danish Confederation of Professional Associations and the state (AC collective agreement) (only in Danish) and protocol on certain terms of employment of academic staff at universities (only in Danish).

Aalborg University - Knowledge for the world
Aalborg University is an international workplace with more than 3,700 employees. We offer real-world-oriented education and create world-class research results through collaboration between researchers, students, and public and private companies. This is how we achieve insights, new solutions to societal problems, and knowledge that changes the world. Our main campus is in Aalborg, but we also have campuses in Esbjerg and Copenhagen.

Contacts

• Farshid Naseri: +4599408561, [email protected]
• HR - AAU Energy: [email protected]

Ansøgningsfrist
23-12-2025

Ref. nummer
2025/761

Afdeling
Department of Energy