A new approach to synthesize MoO2@C for high-rate lithium ion batteries

摘要: A MoO2@C nanocomposite was prepared using oleic acid to reduce the MoO3 precursor and simultaneously coat resultant one-dimensional MoO2 nanorods with carbon layers. The composite has a mesoporous structure surface area of 45.7 m2 g−1, typical pore size 3.8 nm. When applied as an anode for lithium ion batteries, electrode exhibits not only high reversible capacity, but also remarkable rate capability excellent cycling stability. capacity 1034 mA h g−1 delivered at 0.1 g−1. And super-high specific current 22 155 still obtained. cycled 0.5 10 Li/MoO2@C half cells retained 861 312 after 140 268 cycles, respectively. nature thin-layer coating are believed contribute enhanced electrochemical performance, which feature efficient four-electron conversion reaction Li+ storage, effectively tolerate volume expansion during cycling.