Preparation of silicon@silicon oxide core-shell nanowires from a silica precursor toward a high energy density Li-ion battery anode.
Bulk-quantity silicon@silicon oxide nanowires have been successfully synthesized via a facile high-temperature approach using environment-friendly silica mixed with titanium powders. It is confirmed that the obtained nanowires process a crystalline core and amorphous oxide sheath. The obtained nanowires grow along the [111] direction which catalyzed by spherical silicon@siilcon oxide nanoparticles. The unique one-dimensional structure and thin oxide sheath result in the favorable electrochemical performances, which may be beneficial to the high energy density silicon anode for lithium ion batteries.
Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences , No. 189 Songling Road, Laoshan District, Qingdao 266101, P. R. China.
Chuanjian
C
Zhang
Lin
L
Gu
Nitin
N
Kaskhedikar
Guanglei
G
Cui
Joachim
J
Maier