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Project 2-7
  • Material and cell ageing
    • Project 2-2
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Project 2-7

Fibre optical sensors and improved models for state estimation and cell design

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

Prof. Dr.-Ing. Thomas Turek

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, turek(at)icvt.tu-clausthal.de

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

André Hebenbrock

PhD candidate:
André Hebenbrock, Institute of Chemical and Electrochemical Process Engineering & Research Center for Energy Storage Technologies of TU Clausthal, andre.hebenbrock(at)tu-clausthal.de

Project introduction:

Project 2-7

This project investigates the development of fibre optical sensors for status monitoring, such as state of charge and temperature, on lithium‑ion batteries by using special fiber Bragg gratings (FBG) inscribed into optical glass fibers. With this approach, especially mechanical stress limits and critical battery states can be identified. Additionally, a mathematical model describing the internal battery behavior using surface-mounted applied sensors 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 and sensor calibration 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 based on electrode composition
  • Relationships between battery behavior and materials properties
  • Recommendations regarding the quality of recycled battery materials
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