Ultra-uniform CuO/Cu in nitrogen-doped carbon nanofibers as a stable anode for Li-ion batteries

摘要: Developing advanced anode materials is crucial to further enhance the performance of lithium-ion batteries for electrochemical energy storage. Metal oxides embedded in a carbonaceous matrix are supposed be promising candidates as due their high specific capacity and excellent stability. Herein, we report CuO/Cu-based nanocomposite system which was used an material high-performance via efficient synergistic effect. With improved fabrication strategy, CuO/Cu could ultra-uniformly dispersed nitrogen-doped carbon nanofibers. Benefiting from situ pyrolysis Cu salts with structural stability conductivity, hybrid nanofiber electrode showed 572.0 mA h g−1 steady cycling over 500 cycles at constant current density 0.5 A g−1.