Project 2-7

Host institution:
Technische Universität Clausthal, Research Center for Energy Storage Technologies

Supervision:
First supervisor: Prof. Dr.-Ing. Thomas Turek, Institute of Chemical and Electrochemical Process Engineering & Research Center for Energy Storage Technologies together with Prof. Dr. Wolfgang Schade, Institute of Energy Research and Physical Technologies & Research Center for Energy Storage Technologies of TU Clausthal, Email: turek@icvt.tu-clausthal.de

Second supervisor: Prof. Dr.-Ing. Arno Kwade, Institute for Particle Technology of TU Braunschweig

Closing date:
July 15, 2021

This project investigates the development of new sensors for status monitoring, such as state of charge and temperature, in lithium ion batteries by using special Bragg gratings inscribed into standard optical glass fibers. With this approach, especially critical battery states can be identified. Additionally, a mathematical model describing the battery behavior under extreme conditions shall be developed, which is to be validated with experimental results.

Specific objectives:

• Development of sensors and integration in batteries
• Development of a mathematical model for the battery behavior
• Measurements under extreme conditions on batteries prepared with fresh, aged, and recycled materials
• Data collection, model parametrization and validation (in close collaboration with other projects)

Expected outcome:

• Improved sensors for battery status monitoring
• Mathematical model for battery behavior under extreme conditions
• Relationships between battery behavior and materials properties
• Recommendations regarding the quality of recycled battery materials