Test laboratory FOR BATTERY CELL TESTING

Modern lithium-ion batteries place the highest demands on safety, quality and process stability. At the encontec test laboratory, we offer you a comprehensive range of destructive and non-destructive tests that cover the entire life cycle of a battery cell - from development to production and damage analysis. Have battery cells analyzed now - with clear, comprehensible results.

OUR ADVANTAGES

New analysis options - safe opening & preparation. With our integrated glove box, we can analyze electrolyte-containing battery cells:

  • Open securely
  • controlled emptying
  • prepare specifically for further examinations

 
Thanks to the secure opening in the glove box, we can separate all cell components without contamination and examine them specifically. In this way, we create the basis for deep insights into the structure, quality and condition of modern lithium-ion cells.

WHAT WE DO IN BATTERY TESTING

Materialographic sectioning - precise insights into the cell interior

Our macrosections and microsections make the inner structure of the cell visible and enable a detailed evaluation of the cell:

  • Electrodes & separators
  • Layer structures & material transitions
  • Contact areas & arresters
  • Laser welding seams (welding depth, width, quality)
  • Cracks, delaminations & porosities
  • Particles & contamination

Ideal for: Series tests, process evaluations, root cause analyses.

 

Supplementary laboratory analysis - for complete results

For a comprehensive assessment, we combine the grinding process with other test methods:

  • SEM/EDX analyses
  • Layer thickness measurements
  • Macro and microscopy
  • Damage analysis & root cause analysis

This provides you with reliable data for development, production and quality assurance.

 

Analysis of components & battery systems, production control

Whether non-destructive or destructive - we test individual components as well as complete cells and battery systems - ideal for production, series monitoring and supplier evaluation.

Our component and system analysis includes:

  • Glovebox opening & separation of Li-ion cells
  • Anode/cathode overhang inspection
  • Assembly inspection & safety check
  • Homogeneity of the jelly roll (electrode spacing, curvature, cracks)
  • Cell alignment & dimensional accuracy (optical 3D scanning)
  • Characterization of cut edges, electrode offset & edge definition
  • Materialographic examination of individual cell components

These tests ensure stable production processes and high-performance battery cells.

 

Systematic damage analysis (post mortem analysis).
Root cause analysis for defects & failures

Our post-mortem analysis provides clear answers to questions about cell failure, production errors or safety-relevant anomalies. Thanks to the safe opening in the glove box, we can separate all cell components without contamination and examine them specifically.
 
We analyze:

  • Cracks in the electrode coating
  • Particle fractures & cavities
  • Inhomogeneous active material distribution
  • Intergranular corrosion
  • Weld seams, electrolyte loss & miswetting
  • Defects in the depth profile
  • Surface topography & material determination (SEM-EDX)

 
Your advantages

  • Maximum transparency inside the cell
  • Quick root cause identification in the event of deviations or failures
  • Reliable decisions for process optimization & series releases
  • Comparability of suppliers & cell qualities
  • Audit-proof, reproducible results

 
Have battery cells, cell components or laser welded joints analyzed?
We are happy to support you - from individual samples to series testing.