Hello
as far as i know it depends on the active material, scale and on the coating process. At a small/first test it might be fine to mix the components (binder e.g. PVDF for LIB's, active material and if needed conductive additives e.g. C65 with the solvent e.g. NMP) in a mortar and pestle. On larger scale you might use a vacuum mixer to prevent air bubbles or if you are still in a test phase a regular high shear mixer might be alright. When it comes to the specific ratios of the components a lot of testing is needed in order to find the right consistency and coating behavior. I could recommend the following article for deeper information:
Electrode Manufacturing for Lithium-Ion Batteries – Analysis of Current and Next Generation Processing
W. Blake Hawleya,b, Jianlin Li
Hope it helped and best regards.
Hi, I think you should select an optimized weight ratio (70:30 or any other ) of cathode material and conductive carbon in an appropriate dispersing solvent like NMP, with binders (e.g. PVDF or others) for proper adhesion with the conducting electrode. Disperse the mixture properly for homogeneous slurry preparation, and then use this for your purpose.
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