After assembling the battery, you have to wait around 5-6 hrs to attain the equilibrium before keeping into the electrochemical system. In this cell configuration, you should charge the battery first, then discharge.

 At least 3-4 h you have to wait to stabilise the coin cell...

Hi Anji,

This question depends on a few different factors:

1) Viscosity and wetting behavior of your electrolyte: After assembling a cell, if the electrolyte does not have time to properly wet both electrodes and the separator, rate performance and capacity can be detrimentally affected. 

2) Surface area and morphology of your electrodes: The wetting problem can be further aggravated by high surface area electrodes or electrodes with complex morphologies.

For conventional non-aqueous electrolytes I would recommend at least 12 hours rest before cycling. In the case of a solid polymer electrolyte, the electrode/electrolyte interface may be established and relatively stable after cell assembly. This question can be more exactly answered by running an array of tests (capacity or rate performance) with different rest times (2hr, 4hr, 6hr, 12hr) and studying any decline in performance that may develop as a result of rest duration.

Good luck!

It all depends on the wetting behavior of the actove electrolyte on the ele trode surface. Typically graphite cobalt oxide based Li ion batteries does not take more than typically an hour time when EC/DEC OR EC/DMC is used.

dear Anji Reddy Polu,

in general, the time you ask deviates a lot.  It depends, mainly, on the "wetting plus" behavior of the electrolyte concerning as 1st priority the binder (and other parameters also) in general cases. For some special case one may follow this complex (multi-factor ) process by applying EIS measurement. Keeping iDC=0, you may get Z spectra (and equiv. circuit models also) that converge at a value of your limit-time tc. This multi-parametric time tc may be the target time for your special samples.

Dear Anji Reddy Polu,

Hope you are doing good in your career.

Recently, I encountered such issues in my lab during novel material synthesis. The rest period as suggested by above eminent people are very much true. In addition to that I would add few more points:

Definitely, there is no written documents and rule for a fixed period of rest time, in such case it merely become a matter of hit and trial.

For novel materials which are untouched or very few literature are available, care must be taken in deciding rest time. Rest time must be around close to 10 hrs. As it depends upon the "wetting factor". The nature of the binder one use, SEI formation theory, and also on the nature of electrolyte used. EC/DMC/EMC (30:40:30) or some other ratios as per the requirements.

In our case, Ru-based cathode material we use 10 hr.

Thanks and Regards.