The phenomenon of binder float such as the PvDF binder in the drying process of graphite anode slurry has been reported in some references. As the element F can be easily detected through EDS mapping, the detection of PvDF binder distribution is not a big deal. However, things are quite different when SBR is applied as the binder in graphite anode, since there is no marker element available like F when EDS mapping is considered. TG method is said to be viable whereas its accuracy can hardly be guaranteed and it is hard to acquire the exact distribution mapping, because the SBR binder content in the commercial graphite anode is normally low in reality. In addition, the element Os is reported as EDS mapping marker, yet corresponding cost is rather high.

So, is there any other method to detect the SBR-binder in graphite anode, apart from TG and EDS mapping with Os as the marker?

Thanks for your voice.