Optimized Electrode/Electrolyte Interface of MWCNT/SnO Composite through Gas-Solid Fluorination.

The benefit of enriching solid-electrolyte interface with fluorine atoms through the use of fluorinated additives into the electrolyte composition has recently gained popularity for anode materials used in secondary lithium-ion batteries. Another strategy is to provide these fluorine atoms via surface fluorination of the electrode material, particularly for multiwalled carbon nanotube (MWCNT)/SnO-based composites where fluorination must act selectively on SnO. Our study presents two methods of surface fluorination applied on MWCNT/SnO, one using F(g) and the other XeF(s).