The structure of yolk–shell microspheres is attractive because it exhibits excellent structural stability during lithiation; monodispersed crumpled yolk–shell spherical precursors of LiNi_0.8Co_0.15Al_0.05O₂ were obtained via a general and simple supersonic atomization method. After mixing with LiNO₃, this cathode material showed a high discharge capacity of about 225.9 mA h g⁻¹ and a good cycle performance at 0.2 C, which is higher than previously reported studies.