PhD Student in Micromechanical Modeling of Lithium-Ion Batteries Royal Institute of Technology, School of Engineering

PhD student in micromechanical modeling of lithium-ion batteries


Royal Institute of Technology, School of Engineering


KTH is one of Europe's leading technical universities and an important arena for knowledge development. As Sweden's largest university of technical research and education, we gather students, researchers and faculty from around the world. Our research and education covers both natural sciences and all branches of technology as well as architecture, industrial economics, social planning, technical history and philosophy.


The Department of Sustainable Learning carries out basic and applied research in biomechanics, composite mechanics, contact mechanics, crime mechanics and fatigue, material mechanics and paper mechanics. There are strong links to industry and public actors. The doctoral student project at the Department of Strength Learning will be run by Professor Peter Gudmundson as project manager and principal supervisor.




The rapidly increasing proportion of electric vehicles makes battery performance intense and rapid progress can get a big impact. We are looking for a PhD student for the project "Composite model for predicting aging in lithium-ion batteries". In addition to cost and capacity, long-term battery characteristics are very important for increasing the use of batteries in, for example, vehicle applications. Crack formation in electrode particles and between electrode particles and surrounding materials are critical mechanisms for the loss of capacity over time. An important mechanism here is the swelling and shrinkage of electrode particles caused by lithium ions diffusing in and out of electrode particles during charge and discharge. Today, there are no reliable enough methods to predict the aging caused by this fracture. The project aims at developing better models for degradation of battery capacity caused by these mechanisms.


The main research tasks within the project are within mechanical modeling. Secondly, a micromechanical model will be developed in which individual electrode particles with cracking can be simulated and, on the other hand, the micromechanical model should be used to produce a macro-mechanical model on battery level. The models will be connected to electrochemical models, for example, controlling the transport of lithium ions. The models will be verified with experiments.


The project is a collaboration with the Department of Applied Electrochemistry at KTH. There is also close collaboration with Scania CV AB, Volvo Cars and AB Volvo, as well as the National Electromobility Center, a channel for collaboration between universities, industry and government. The project is funded by the Swedish Energy Agency in the field of energy-based basic research.


The doctoral student program primarily refers to four years of employment for a maximum of five years. Up to 20% institutional service is included in the service.




Applicants must be strongly motivated for research studies, capable of independent work and critical analysis. Appropriate background is a master's degree or master's degree in engineering physics, mechanical engineering, craft engineering, material design with emphasis on strength technology or equivalent. Even applicants who in spring 2018 are expected to take such degrees are welcome.


Furthermore, the applicant must have:

  • Strong academic qualifications, good knowledge of written and spoken English, and the ability to work to work well in group

  • Knowledge in computational engineering and programming

  • Experience of calculations with FEM

  • Broad knowledge of physics and technology and an interest in interdisciplinary issues

  • Good knowledge of mathematics and interest in mathematical modeling

  • Ability to act as a training assistant in classroom and laboratory work and to present research results in different contexts 


Union representatives

You will find contact information for union representatives on the KTH website . 



You apply through KTH's recruitment system. You as the applicant have the primary responsibility for your application being complete when it is submitted.


The application must be KTH at the latest midnight CET / CEST (Central European Time / Central European Summer Time) deadline. 


The application must include the following documents:

  • Attachment summary of your application and a statement of your motivation and your research interests

  • Two academic references

  • A detailed CV

  • Grades and examinations

  • Examples of technical writing, such as thesis, technical report or scientific article 



We discourage direct contact with staffing and recruitment companies as well as sales adverts.


Type of employment

Fixed-term employment longer than 6 months

Extent of employment



By agreement, preferably as soon as possible


Monthly salary according to KTH's agreement for doctoral salaries

Number of vacancies


employment rate





Stockholm County




S 2017-2168


  • Peter Gudmundson, Professor, +46 8 790 75 56,



Application deadline



If you apply for this position please say you saw it on Engineeroxy


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