An ultrathin W₁₈O₄₉@carbon nanowire web anode showed the best cycling performance (889 mA h g⁻¹ after 250 cycles at 200 mA g⁻¹) among the tungsten oxide anode materials used in lithium-ion batteries reported to date.

A new nanocomposite of Si nanoparticles homogenously encapsulated in a graphene composite was prepared by a facile layer-by-layer (LBL) assembled modification method, followed by an electrostatic attraction directed self-assembly approach and thermally reduced process. The wrinkled graphene sheets were assembled into a three-dimensional network and covered the surface of the highly dispersed Si nanoparticles well. The as-prepared Si–graphene composite exhibited good electrochemical performance as an anode material in lithium-ion batteries, showing a stable reversible capacity of 1150 mA h g⁻¹ with a high capacity retention rate of 92.0% over 100 cycles and high rate capability (840 mA h g⁻¹ at 3000 mA g⁻¹).

ZnO nanocrystals were synthesized via a thermal decomposition method. X-ray diffraction, transmission electron microscopy, and photoluminescence were used to investigate the composition and nanostructure of the material. Compared with commercial ZnO nanoparticles, ZnO nanocrystals showed higher lithium storage capacity and better cycling characteristics and exhibited a reversible discharge capacity of 500 mAh g⁻¹after 100 cycles at 200 mA g⁻¹.