What should be the ratio of PVDF and NMP for a coating on Cu foil used as anode in Li ion battery?

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Sebastian Maletti

This depends a lot on your material, its particle size, surface and morphology - I would recommend reading into publications that deal with your material. Usually, between 3 and 10 wt-% PVDF are used (but I have seen much more than that already for applications that require much flexibility) and the NMP amount is regulated in a way that a nice slurry is formed.

Sneha Upadhyay

sample to PVDF to carbon black...this ratio should be 8:1:1 or 7:2:1 or 7:1:2. Generally 8:1:1 is best. NMP is added as min as possible. For making two single sided electrodes one or two drops were sufficient for me. Then dry off the NMP and u will get perfect slurry for your copper foil as well as mesh.