Self-templating synthesis of single crystalline LiNi_0.5Mn _1.5O₄ nanotubes with improved electrochemical performance

Single crystalline lithium nickel manganese oxide (LiNi _0.5Mn_1.5O₄) nanotubes have been prepared by a facile self-templating method from β-MnO₂ nanotubes. The wall thickness and hollow part of the nanotubes are around 250 nm and 200 nm, respectively. The tubular LiNi_0.5Mn_1.5O₄ exhibits good rate capability and high-rate cycling stability. At 10 C, it can yield a high discharge capacity of 99 mAh g^-1. After 550 cycles at 5 C, a discharge capacity of 85 mAh g^-1 can be kept, indicating a promising application in high-power Li-ion batteries.