Thesis Worker: Li-ion battery cell durability vs compression

Thesis Worker at Volvo Cars
Welcome to explore the world of Volvo Cars by writing your thesis with us! As a thesis worker in our organization you are supported by a supervisor who follows you during your project. All thesis projects are arranged in business critical areas and therefore you will be able to contribute to our company purpose – providing freedom to move in a safe, sustainable and personal way – from day one! 

About this opportunity - Background 
The rapid transformation of the automotive market towards electrifications is largely driven by the technological improvements in the battery area. Higher energy density and lower cost makes battery electric vehicles competitive and affordable for a wider range of customers. To keep improving we need to dive deeper into several fields of battery development, from how we can charge the batteries faster to how we can minimize the environmental footprint. There is a need to introduce innovative ideas in order to cope with new demands and the competitiveness of the business.

Scope of the thesis work 
To assure the battery´s cell functionality and durability, the cells need to be compressed to a certain degree depending on battery technology.  This thesis' objective is to characterize the effects of compression force on prismatic lithium-ion battery cells applied either during manufacturing or through operational conditions. 

The work includes:

• Conduct literature research to understand the fundamental principles of battery cell design, the role of mechanical stresses, and their impact on battery performance and durability.

• Define test methods that are both efficient and realistic for a consumer.

  • Set-up test method and jig.

  • Perform tests in a battery lab.

• Analyze the data to correlate the applied compression forces with changes in battery performance, e.g. capacity retention, internal resistance and voltage curves.

• Analysis of cells (CT scan/Cell tear down)

What you´ll bring

• Applicants should be pursuing a Master of Science degree in chemical or electro chemical engineering, applied physics,  or similar.

• Fluent in English, written and spoken.

• You should be interested in Li-ion battery technology and electric vehicles.

Duration

• Proposed starting date: January- February 2025, Period: 1 semester

• Academic Credits: Equivalent to 30 ECTS (in agreement with your academic thesis advisor)

• Number of students: Suitable for 1-2 students.

Be part of the change – apply today!

Applications should include  your CV and a brief personal letter stating your interests within the given area and your thoughts and credentials. We are continuously screening applications and will fill the position as soon as we find a good match. So do not hesitate to send in your application.

Apply as soon as possible but no later than  2024 - 10 - 30

 Please note that due to GDPR applications via email will not be accepted.

If you want more information about the project or simply learn a bit more about the team, please reach out to:

• Manager, Andreas Eriksson at andreas.l.eriksson@volvocars.com

• Supervisor,  Charbel Nassif at charbel.nassif@volvocars.com

Volvo Cars - Driving change together

Volvo Cars’ success is the result of a collaborative, diverse, and inclusive working environment. Today, we are one of the most well-known and respected car brands, with around 43,000 employees across the globe. At Volvo Cars, your career is designed around your skills and aspirations, allowing you to reach your fullest potential.