FeS2 encapsulated with mesoporous carbon for high-performance lithium-ion batteries
2021
FeS2 is thought to be a kind of promising anode materials used for lithium-ion batteries (LIBs), but the intrinsic low electrical conductivity and remarkable volume change hinder its practical application. In the present work, we proposed a strategy by introducing mesoporous carbon (MPC) to obtain a FeS2/MPC composite electrode for LIBs. The FeS2/MPC composite was prepared by hydrothermal method. The results indicated that the FeS2/MPC composite electrode exhibited better electrochemical performance than pristine FeS2. Especially, the discharge capacity of composite electrode reached 650 mAh g−1 at 0.5 C current density, and this was significantly higher than that of pristine FeS2.
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