Batteries

Chemical and physical testing

Currently, the battery is the weak spot for the development and expansion of electromobility.

As a leading global analytics service provider, SGS has extensive expertise in battery testing. With our versatile testing options, we can cover the monitoring of the entire battery production process – from the basic materials to the complete battery system.

SGS INSTITUT FRESENIUS is a strong partner that can support you with a high-end equipment portfolio and advanced analytical methods in the field of material and layer analysis, surface, trace and fault analysis, as well as with a wide-ranging network.

Our services

Chemical analysis of battery electrolytes

Identification of chemical group and chemical composition
Testing for organic and inorganic impurities
Detection of degradation products
Inspection for electrolysis decomposition products
Analysis of reaction products for stress and abuse tests

Chemical and physical investigations of separator membranes

Characterization of layer structure and composition
Morphological assessment of the surface
Analysis of contamination on the surface and in the bulk material
Investigation of resistance to chemicals
Testing for short-circuit triggers (dendritic growth between electrode and membrane)
Microanalytical detection and documentation of faults, cracks, inclusions

Characterization of electrode materials: anode / cathode

Material and chemical group analysis of electrode components
Element analysis for determining the major and minor components, as well as trace components (contaminations)
Microanalytical testing of flaws, cracks, and inclusions
Determination of porosity and specific area

Testing of battery housings

Material analysis of housing parts (metals, alloys, plastics, composites)
Identification of additives, adhesive and sealing compounds, as well as characterization of their curing behavior
Testing of resistance to chemicals

Our methods

Material analysis of the components using ICP-OES/MS, F-OES, XRD, FT-IR, XPS, RAMAN, SEM-EDX, GD-MS
Chemical or physical analysis of impurities in electrolytes or solids by ICP-OES/MS, GD-MS, RAMAN, FT-IR, GC-MS, SPME-GC-CIMS, HPLC
Characterization of the layer structure, surface condition and surface purity of battery components (cleanliness, oxidation states, etc.) using XPS, ToF-SIMS, PEM-IC, RAMAN
Thermo-analytical determination of typical material values by means of DSC, TG, STA and DMA analytics
SEM/EDX for investigations of morphology, coatings and particles, or for damage case analysis, e.g. dendrite growth