At our premises in Zorneding near Munich, we characterize individual battery cells and smaller modules with regard to safety and quality requirements.

Our services include:

Cell chemistry

• Chemical analysis of electrolyte and electrodes
• Element distribution images in SEM+EDX
• Phase analysis by X-ray diffraction (XRD)
• Characterization of layers and layer structures

Qualification of manufacturing processes and manufacturing quality

• Non-destructive structural imaging by computed tomography
• Safe delaboration for further investigation after discharge
• Verification of electrode structure and contacting in micrographs
• Metallographic examination of pack and module frames (e.g. welded and soldered joints)
• Test of mechanical safety devices (e.g. overpressure valves)

Reliability and transport safety

• Electrical malfunction (overcharge, deep discharge and short circuits
• Mechanical damage (shock/vibration, crushing, drop test, foreign object penetration)
• Thermal and climatic testing (altitude simulation, temperature change/shock
• Provoked thermal events / thermal runaways
• Electrical performance testing
• Capacity and cycle stability / lifetime
• Power / power density
• Resistances (surface, contact, ...)

Testing of complete e-vehicle systems such as missuse and abuse tests of entire lithium-ion battery systems are offered at our premises in Goslar at the GWP BATTERY TESTING HOUSE.