Facile fabrication of core-shell α-Fe2O3@PPy imbedded into porous biomass-derived carbon for enhanced lithium storage

Due to the large theoretical capacity (1007mAh/g) and unique electrochemical properties, alpha-Fe2O3 is regarded as an improved anode for next generation lithium-ion batteries (LIBs). Nevertheless, its numerous applications in lithium storage are constrained by its weak conductivity and large volume variation during cycling. Herein, the unique BPC/alpha-Fe2O3@PPy composite is synthesized by incorporating alpha-Fe2O3@PPy into three-dimensional hi-erarchical porous carbon, which can enhance charge transfer efficiency and decrease its volume variation. As anodes for LIBs, the BPC/alpha-Fe2O3@PPy electrode displays excellent cycle stability and exceptional high-rate performance. This work offers a sustainable approach of constructing economic and green alpha-Fe2O3-based com-posite as novel LIBs anode materials for renewable applications.

Automated summary

The BPC/alpha-Fe2O3@PPy composite, with improved charge transfer efficiency and reduced volume variation, showed excellent cycle stability and high-rate performance as an anode for lithium-ion batteries. This sustainable approach offers a promising solution for renewable energy applications.