High electrochemical performance Li-ion batteries based on the porous carbon@Fe2O3 composite anode

As a kind of anode materials, iron matrix oxide cannot be widely used in the lithium-ion batteries due to their poor electrical conductivity and huge volume change during the electrochemical cycles. Herein, the porous carbon @Fe2O3 composites are prepared by hydrothermal method. Due to the porous structure and introduction of carbon, the electrical conductivity can be greatly improved. Additionally, the porous structure could buffer the volume change during electrochemical cycles. As a result, the as-prepared carbon @Fe2O3 composites deliver a high initial specific capacity of 1168 mAh/g at 0.1 C. Moreover, the carbon @Fe2O3 composites show outstanding rate performance and superior cycling stability. This work provides a potential anode material for high electrochemical performance Li-ion batteries.

Automated summary

In this study, porous carbon @Fe2O3 composites with improved electrical conductivity and cycling stability were prepared by hydrothermal method, showing potential as anode materials for high performance Li-ion batteries.