Battery Quality Screening

Screen your battery cells and sort out low-quality cells before shipping or integration. Using our innovative rapid test methods will help you build reliable, high-performance battery modules and packs.


Why do some batteries live longer?

Minor process changes during battery production lead to major changes regarding battery performance and lifetime.
The key for long-lasting battery systems is to screen incoming batteries and select optimal cells for your application.

Box of battery cells and graph that shows life time

Why do some battery systems fail early?

The performance and lifetime of your battery system is determined by the worst battery cell.
That is why the integration of batteries with quality issues jeopardize your product’s success.

Chart of battery module with different life times


How to screen and grade battery cells?

The sole measurement of the internal resistance (IR) and open circuit voltage (OCV) as incoming good inspection techniques are insufficient to identify lithium-ion battery cells of reduced lifetime.

Only the measurement of at least 20 impedance points at different frequencies reveals hidden degradation mechanism in the DNA of the screened lithium-ion battery cell and provides indisputable grading.

Numerous scientific publications back the capabilities of Safion’s online electrochemical impedance spectroscopy (sEIS) technology and prove the strong evidence between the measurement results and future battery performance as well lifetime.

Graph of oEIS measurement

Redefine Battery Testing and Grading

Safion’s battery screening system ExaMight reduced the measurement time for the impedance spectrum of more than 20 points from minutes to seconds and enables an extremely high screening throughput.

Safion’s workflow and classification software is characterized by a quick and lean process integration as well as minimal work forces requirements.

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