Cell Development and Testing

Institute for Applied Materials – Energy Storage Systems (IAM-ESS)
Production of a 20 Ah Cell at Battery Technology Center
Single Components of a 20 Ah Cell
Cell Test Environment
Benchmarking Cycle Life of Commercial Cells

In the field of cell development, the construction of highquality
lithium-ion pouch cells are in focus in the laboratory and
industry-related large format.

Cell Assembly

Semi-automatic line for manual manufacture of pouch cells in
the dry room:

  • Analysis of failure mechanisms with forced cell failures
  • Performance analysis of cell components, such as separator, electrodes, conductor foils
  • Tests of new electrolytes and additives
  • Tests of new active materials
  • Tests of new cell formats

Cell Tests

Electrochemical characterization of cells of any format
(hard case, pouch and round cells):

  • Rate capability and internal resistance
  • Endurance tests and application of load profiles
  • Calendar aging tests
  • Electrochemical impedance spectroscopy

Post-mortem Analysis

Investigation of aging phenomena or cause and effect

  • Light and electron microscopy
  • HPLC and GC measurements of electrolyte constituents
  • (at IAM-ESS: X-ray analysis, XPS, etc.)



Contacts: Dr. Anna Smith and Dr. Lea de Biasi