▎ 摘　　要

High performance of lithium ion batteries (LIBs) largely relies on developing advanced cathode materials. In this work, we report integrated electrodes of graphene foam (GF) supported FeS2 with a novel atomic layer deposition-assisted sulfurisation method. Interestingly, cross-linked FeS2 nanoparticles of 20-40 nm are intimately coated on the preformed GF skeleton forming integrated composite electrodes. The GF/FeS2 electrodes are thoroughly characterised as the cathode of LIBs and proven with high specific capacities (625 mAh g(-1) at 0.25 C and 417 mAh g(-1) at 2 C), good rate capability and cycling life with a capacity retention of 79% at 0.1 C after 100 cycle. The GF supported binder-free structure is responsible for electrochemical enhancement with fast ions/electrons transportation and good contact between active FeS2 and electrolyte. Our results provide a new high-performance integrated electrode for advanced LIBs.