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Testing Battery Performances
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This method requires a VoltaLab 40, a VoltaLab 50 or a VoltaLab
80.
Files:
CV Logarithmic E = f(i).EXP
CV Logarithmic E = f(i) 016.CRV
Abstract
Gal. Logarithmic CV with logarithmic progression
for i is used to determine the maxiBattery test. The method mum
current that a battery can supply at its nominal value. The applied
current and the battery measured potential are plotted versus time.
Sample
A commercial 3.6 V nominal value battery.
WORK is connected to the positive pole.
REF is connected to the negative pole.
AUX is connected to the negative pole.
Settings - Experimental
Curve examination
Display : Type = Normal X = Time Y1
= Potential Y2 = log(Current)
Use the "Axis" function and
the "Cursor" to determine the current which corresponds to 3600
mV.
Conclusion
The maximum current corresponds to the
current at which the potential drops below the nominal value of
the battery, approximately -1mA.
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