Hello Community,
I am experimenting with deep eutectic solvents for supercapacitors. I tried:
Choline Chloride: Urea
EG: Choline Chloride 1:2
Choline chloride: Zncl2
Urea: Zncl2
Choline Chloride: Mgcl2 etc
I am also looking into EMIM TFB
If I use the DES directly as electrolyte for supercapacitor, I can see no current draw when charging. I take the two components required for the DES and heat them for 30 mins @70 degrees celcius. The liquid forms very easily but becomes stiff an highly viscous and hardens eventually. As a result of this, it is not able to get into the supercap pores for any intercalation.
Am I supposed to be mixing my DES with an aqueous electrolyte to improve its electrochemical window? I read tons of papers but none of them seem to mention this clearly or anything about this issue
Lastly, I want to use EMIM TFB as I hear it is stable to moisture and kicks up the energy density of Graphene by almost 10 times. Sigma as you all know if too expensive. I Looked at some papers for synthesis but am unable to select a suitable one.
Can anybody suggest a suitable relatively easy route to syth EMIM? I guess I can then buy Na. TFB and try making the DES
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