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Silicon/nitrogen-doped carbon/carbon nanotube nano/micro hierarchical structured spheres are prepared through a facile electrospray approach by using rice husks as silicon source.These as-obtained Si/C could deliver a high reversible specific capacity of 1380 mA h g-1 at a current density of 0.5 A g-1,and maintain 1031 mA h g-1 after 100 cycles.