State;
Key;
Laboratory;
of;
Catalysis,;
Dalian;
Institute;
of;
Chemical;
Physics,;
Chinese;
Academy;
of;
Sciences,;
Dalian;
National;
Laboratory;
for;
Clean;
Energy;
University;
of;
Chinese;
Academy;
of;
Sciences;
silicon; nanostructures; molten; salt; electrochemistry; solar; grade; Si; FFC-Cambridge; Process;