I have measured the specific capacitance of my supercapacitor using the C-V plot in BioLogic instrument set up. Now I want the Charge discharge (CD) Analysis using BioLOGIC (SP-150) instrument. I have read that GCPL is the method to be used.
Now please help me to understand the basic process, The measurement to do and the parameters to be varied.
I did the CD analysis (please check attachment) at 2 mA. But I unable to get the proper CD curves. What are the values we have to give in 0, 1, 2 windows in CD analysis?
The screenshot of the experiment is too small to figure out anything. Can you share part by part?
seq 0.
no value for 1st,3rd, 4th section, put resting time in second section
seq 1.
1st section
Is = applying current
t1 = more than the calculated value for charge time
Em : cut- off voltage
record : dE1 : voltage differential, dt1 : time differential
Hold : do not need for supercapacitor, put 0h 0min 0s
Limit Q : do not need for supercapacitor
E range : consider the working window
I range : consider charge current
2nd section
Rest : put the rest time after charge
3rd section. : pass
seq 2.
1st section
similar to page 1, but you need to negative value for discharge current
section4
Ns : repeat page ( maybe seq 1 for charge again)
nc : repeating number
Hi Soojeong,
Should I do the same for the charge/discharge of a coin cell Lithium-sulfur battery?
Cheers, Mohammad.
Soojeong Lee
as measuring dummy cell, voltage still stay constant at sequence 1 although setting tM 0.
Can't find how to fix it :(
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