Liu, WRWRLiuYen, YCYCYenWu, HCHCWuWinter, MMWinterWU NAE-LIH2010-09-152018-06-282010-09-152018-06-282009-09http://ntur.lib.ntu.edu.tw//handle/246246/202654Carbon-coating of sub-μm SiO particles (dmax = 0.36 μm, d50 = 0.69 μm) by a fluidized-bed chemical-vapor-deposition process has produced unique nano-porous SiO/C secondary particles within which the SiO primary particles are "glued" together by carbon to form a network that possesses randomly distributed pores with sizes in the nano-meter range and a bulk porosity of >30%. Upon lithiation/delithiation cycling in an organic Li-ion electrolyte, the electrode made of the SiO/C particles exhibited reduced polarization, smaller irreversible electrode expansion, and remarkably enhanced cycling performance, as compared with that of pristine SiO particles. The reduced electrode expansion exhibited by the SiO/C electrode can be attributed to the combination of diluted SiO content and presence of pre-set voids, which could partially accommodate volume expansion arising from lithiation of the SiO primary particles. These effects render the SiO/C electrode structurally more robust than the SiO electrode against volumetric variations upon cycling. © 2009 Springer Science+Business Media B.V.en-USAnode; Carbon coating; Chemical vapor deposition; Lithium ion battery; Nano-porosity; SiO[SDGs]SDG7Carbon coating; Composite anodes; Cycling performance; Deposition process; Lithiation; Lithium ion battery; Nano-porosity; Nano-porous; Primary particles; Randomly distributed; Secondary particles; SiO; Volume expansion; Anodes; Chemical vapor deposition; Fluidization; Fluidized bed process; Ions; Lithium; Lithium alloys; Lithium batteries; Lithium compounds; Porosity; Vapors; Silicon compoundsjournal article10.1007/s10800-009-9854-x