Two-dimensional silicon suboxides nanostructures with Si nanodomains confined in amorphous SiO2 derived from siloxene as high performance anode for Li-ion batteries

We introduce a strategy to prepare sheet-like Si/SiO2 nanocomposites from siloxene. Siloxene was delaminated from layered CaSi2. After CVD process, sheet-like Si/SiO2@C showing Si nanodomains well confined within amorphous SiO2 matrix exhibits superior electrochemical performance as anode for Li-ion batteries.441