Master Thesis work: Finite element modelling of Cell Swelling for Traction Batteries 16 visningar0 ansökningar

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What is in it for you?
This thesis work will be carried out within the Department of Propulsion Energy Systems, which is a part of VCC´s Product and Quality organization.
We are dedicated to electrify our brand in a broad effort with Plug-In Hybrids (PHEVs) and Battery Electric Vehicles (BEVs). At the engineering department of Propulsion Energy Systems, we are responsible for design and delivery of the technical solution of Traction Battery systems for electrified vehicles.

The Traction Batteries Analyses & Validation team focuses on all kinds of CAE simulations relevant for batteries. We are a young and developing team. Our responsibilities include development of CAE methods for electrochemical, thermal, electrical, EMC, diagnoses, control & calibration of batteries in close cooperation with design, test and simulations engineers both internally and from other departments.


Li-ion cells used in a battery pack swell during cycling and exert pressure on the structural members such as the module walls encasing them. This in turn affects their cycling behaviour, the stiffness of the module, the available space to allow intrusion in event of a crash, etc. It also affects externally connected parts such as busbars and cooling system components.The swelling behaviour itself is influenced by cell chemistry, cell usage (State of Charge/Depth of Discharge/State of Health), temperature, cell design, and manufacturing quality among other things. Different ways to best capture this swelling behaviour in a finite element model are to be investigated.  The model can then be integrated into other complete battery pack structural simulations to characterise influence of swollen cells on pack and component behaviour.

Scope of the Master Thesis:

  • Analyse available cell test data with regards to swelling. Identify parameters recorded during testing, which influence swelling.
  • Build Finite element model(s) of the cell(s) which exhibit swelling according to the influencing input parameters.
  • Perform sensitivity analysis to see how much the models can be simplified, in terms of mesh density, etc.
  • Verify in CAE that the swelling behaviour of the model corresponds to the test data.

Do you fit the profile?
We are looking for one or two analytical and self-driven Master Thesis students with deep interest in structural analyses. An advantage will be passion for battery electric vehicles.

  • Applicant should have a background in Mechanical Engineering with knowledge and interest in Finite element modelling.
  • Some knowledge of electrical engineering is beneficial but not necessary.
  • Prior knowledge of any of the following software tools is useful – Matlab, MS Excel, ANSA, Abaqus, LS Dyna, Comsol.
  • Fluent in English, written and spoken


  • Proposed starting date: January 2020, Period: 1 semester
  • Academic Credits: Equivalent to 30 ECTS
  • Number of students: Suitable for 1-2 students.

How to Learn More and Apply
Attach your resume and cover letter stating your interests within the given area and your thoughts and credentials. Please note that applications arriving later than the last application date will not be taken into consideration. Selection will be ongoing during the application period, so do not hesitate to send in your application.


For questions about the position, please contact Marie-Louise Holmer, Manager, Traction Batteries, Analyses & Validation) at


We want your application at the latest October 15rd, 2019. Please note that applications by email will not be accepted.


Who are we?

Volvo Cars is a company on a mission; to bring traditional car manufacturing into a connected, sustainable and smart future. Since 1927, we have been a brand known for our commitment to safety, creating innovative cars that make life less complicated for our consumers. In 2010, we decided to transform our business, resulting in a totally new generation of cars and technologies, as well as steady growth and record sales. Today, we’re expanding our global footprint in Europe, China and the US, and we’re on the lookout for new talent. We are constantly pushing our own skills and abilities to drive change in the automobile industry like never before. We are looking for innovative, committed people to join us in this endeavour and create safe, sustainable and connected cars. We believe in the power of people and will challenge and support you to reach your full potential. Join us and be part of Volvo Cars’ journey into the future.

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