Co-synthesis and Electrochemical Investigation of the Nitrogen-Doped Carbon Layer with Metallic Nano Beads on the SiO Anode for Lithium Secondary Batteries.

The high theoretical capacity (∼2000 mAh g) of silicon suboxide (SiO, with 1 < < 2) can solve the energy density issue of the graphite anode in Li-ion batteries. In addition, it has an advantage in terms of volume expansion or side reactions compared to pure Si or Li metals, which are considered as next-generation anode materials. However, the loading content of SiO is limited in commercial anodes because of its low cycle stability and initial coulombic efficiency.