While graphite in the range of 10-13 microns may not go through the spherodization process, Lower sized artificial graphite can go through spherodization process. It completely depends on the cell manufacturer strategy.
The main reason to sperodize is to protect the edges of the graphite layer from reacting with the electrolyte. A sphere has the lowest surface area and hence the exposed edges are less. We sometimes also put a layer of anhydrous carbon to protect.
A lot of research is going on with the graphite / silicon anode especially since it is relevant for fast charging. So the technology is not yet stable.
As regards to HEG. They indicated not to go beyond the graphitization process.
| Subscribe To Our Free Newsletter |
