Development-side qualification tests

on batteries for determining suitability

  • Evaluation of the battery quality based on the capacity, voltage and internal resistance
  • Measurement of cell voltage, capacitance, temperature, spectral impedance measurement
  • Calculation of the series and parallel resistance as well as the double layer capacitance
  • Connection via USB to DigiControl PC software with powerful process data logging


The battery quality of round cells must be determined on sample parts with the aid of the capacity, voltage and internal resistance parameters. The primary cell is fully charged for determining the capacity. The discharging of the cell takes place using a selectable constant current as far as the discharge limit voltage by the battery tester. The frequency-dependent internal resistance of a cell contains real and imaginary components, and is displayed as a Nyquist plot via the spectral impedance measurement within the frequency range of 0.1 Hz to 1 kHz. Electrochemical characteristics can be assigned from this and checking for possible fluctuations during manufacturing can take place. Important model parameters such as series resistance (Rs, electrolyte statement), parallel resistance (Rp, electrode characteristic) and capacity (Cp, double layer capacity) can be calculated.
Visualisation, calculation, archiving via PC software
Measurement of cell voltage, capacity, temperature, spectral impedance measurement, calculation of Rs, Rp and Cp.

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burster in Germany

burster praezisionsmesstechnik gmbh & co kg
+49 7224645-0

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burster praezisionsmesstechnik gmbh & co kg

Talstr. 1-5
76593 Gernsbach

Fon: +49 7224645-0
Fax: +49 7224645-88

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