Fraunhofer R&D Center for Electromobility Bavaria
Fraunhofer R&D Center for Electromobility Bavaria
Battery testing Fraunhofer ISC
© K. Dobberke for Fraunhofer ISC

© K. Dobberke for Fraunhofer ISC

Battery cell and module testing
© K. Dobberke for Fraunhofer ISC

© K. Dobberke for Fraunhofer ISC

Testing and Analytics of Battery Cells and Modules

The range of electrochemical energy systems is big and so is the chemistry within the cells. Depending on the battery application, the battery cells have to be tested for their functionality and applicability with respect to their operational life.
 

Fraunhofer ISC offers testing capabilities for high performance and large scale cells with their new high current battery laboratory.


We offer high current battery channels for cells from the automotive sector, stationary energy storage and other high performance or large scale cell applications. With advanced sensors and measurement equipment for electrochemical impedance spectroscopy, multiple temperature measurements per cell and a variety of data logger channels for additional sensors, we can provide cell tests tailored specifically to your needs and requirements.


 

Download info flyer

Test and measuring methods Fraunhofer ISC
© Fraunhofer ISC
Measuring methods at Fraunhofer ISC

Material expertise meets analytical know-how

The Center for Electromobility uses various methods for testing, analyzing and characterizing of battery materials and cells and provides several services for customers. Within this subject area, we work closely with our colleagues from the Center for Applied Analytics ZAA.
 

Center for Applied Analytics ZAA

Test field high current laboratory
© K. Dobberke for Fraunhofer ISC
Test field high current laboratory
Battery cell connection
© K. Dobberke for Fraunhofer ISC
Cell connection on temperature chamber tray
High current contact block
© K. Dobberke for Fraunhofer ISC
High current contact block with 4 point measurement and temperature sensor

Key facts

45 channels @ 0-6 V
3.6 KW per channel

  • 0.3 A up to 500 A continuous current
    (600 A peak)
  • Up to 1500 A in parallel connection
  • Including two temperature sensors for each channel

6 channels @ ± 20 V
150 A per channel

Small battery modules ≤ 20V

  • 0.15 A up to 150 A continuous current
  • Max. power per channel: 1.8 kW

© K. Dobberke for Fraunhofer ISC

6 channels @ ± 20 V
150 A per channel

Small battery modules ≤ 20V

  • 0.15 up to 150 A continuous current
  • max. power per channel: 1.8 kW

4 temperature chambers

  • Chamber volume 600 l (3 trays)
    each tray W/H/D 650 x 255 x 370 mm³
  • Temperature: -25 °C up to +80 °C
  • Safety feature:
    T ≥ 90 °C: nitrogen cooling
    T ≥ 120 °C: high pressure water mist for fire suppression

24 channels EIS

Electrochemical Impedance Spectroscopy

  • Frequency range: 1 mHz up to 6.5 kHz
  • Accuracy frequency: 0.005%
  • Resistance measuring range:
    0.3 Ohm to 3000 Ohm

Possible Procedures

  • Dynamic (e.g. driving profile)
  • Reference performance tests
  • C-Rate tests
  • Fast-charging
  • Check ups with EIS