Fabrication and Characterization of Cu_2O Nanorod Arrays and Their Electrochemical Performance in Li-Ion Batteries

摘要

This study is an investigation of the electrochemical performance of Cu_2O nanorods in Li ion battery application. The template-mediated electroplating was applied to fabricate Cu_2O nanorod arrays. The morphological observation shows that the nanorods with 60 nm diam and 450 nm length were grown perpendicularly to the substrate. The cyclic voltammetry sweeping indicates a reversible electrochemical reactivity between Cu_2O nanorods and Li, and cycling tests show that the nanorod arrays exhibit a capacity of 330 mAh/g after 100 cycles. The high capacity and good cycle retention imply that Cu_2O nanorods are a candidate anode material for rechargeable power source.