Fraunhofer R&D Center for Electromobility Bavaria Using aging and Post-Mortem analysis the Center understands the aging processes and mechanisms that cause aging effects or battery failures.
Post mortem analyses
Our competencies
The center exercises accelerated aging tests:
- On the basis of industry-standard test scenarios
- Under extreme environmental conditions
- Studying degradation meachanisms
- Information on the robustness of cell technology
In additon, we have vast expertise in Post-Mortem analysis:
- Computed tomography (CT) as nondestructive method to detect:
o manufacturing defects
o short circuits
o aging effects such as delamination
o contacting problems - Impedance analysis to locally resolve detection of changes in the material
- Electrode analysis with XPS and EDX
- X-ray diffraction analysis to reveale changes in the crystalline structure
- Scanning electron microscopy to detect microscopic mechanical defects
- Chemcial analysis methods (e. g. ICP-OES) to determine degradation products
Services for our customers
- Assembly of test cells (pouch bag, laboratory-scale cell up to 2.5 cm2)
- Accelerated aging tests adapted to the customer’s specific needs (maximum capacity 5 Ah)
- Cycling tests under extreme environmental conditions (-20 °C to + 80 °C, 100 % relative humidity)
- Nondestructive analysis for detection of defect
- Comparative measurements before and after cell aging
- Preparation of samples for artifact-free characterization
- Interpretation of test results and consulting
- Development of suitable coatings based on test results to improve cell technology