o3O4多孔纳米带的无模板法制备及其增强的锂离子电池性能研究

o3O4 porous nanobelts are fabricated from nanorods by a template-free hydrothermal method. Enhanced lithium-ion battery performance is obtained from Co3O4 porous nanobelts. The reversible capacity is up to 1388 mAh/g, the initial coulomb efficiency is 84.7 %, and the cyclability is excellent. Lithium-ion battery performance of porous nanobelts is much higher than that of nanorods. Such a behavior is attributed to more efficient Li insertion, less volume change and no agglomeration of porous nanobelts. The present results open a way for fabrication of porous 1D nanostructures and imply that porous 1D nanostructures are good candidates for high performance lithium-ion battery anodes.