Iron sulfide is an attractive anode material for lithium-ion batteries (LIBs) due to its high specific capacity, environmental benignity, and abundant resources. However, its application is hindered by poor cyclability and rate performance, caused by a large volume variation and low conductivity. Herein, iron sulfide porous nanowires confined in an N-doped carbon matrix (FeS@N-C nanowires) are fabricated through a simple amine-assisted solvothermal reaction and subsequent calcination strategy. The as-obtained FeS@N-C nanowires, as an LIB anode, exhibit ultrahigh reversible capacity, superior rate capability, and long-term cycling performance. In particular, a high specific capacity of 1,061 mAh·g⁻¹ can be achieved at 1 A·g⁻¹ after 500 cycles. Most impressively, it exhibits a high specific capacity of 433 mAh·g⁻¹ even at 5 A·g⁻¹. The superior electrochemical performance is ascribed to the synergistic effect of the porous nanowire structure and the conductive N-doped carbon matrix. These results demonstrate that the synergistic strategy of combining porous nanowires with an N-doped carbon matrix holds great potential for energy storage.

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硫化铁由于其高的比容量，环境友好性和丰富的资源而成为锂离子电池（LIB）的有吸引力的负极材料。然而，由于体积变化大和电导率低而导致的可循环性和速率性能差，阻碍了其应用。在此，通过简单的胺辅助溶剂热反应和随后的煅烧策略，制造了局限在N掺杂碳基体中的硫化铁多孔纳米线（FeS @ NC纳米线）。已获得的FeS @ NC纳米线作为LIB阳极，具有超高的可逆容量，优异的倍率性能和长期循环性能。特别是，1061毫安时的高比容量·克^-1可以在1A取得·克^-1500个周期后。最令人印象深刻的是，即使在5 A·g ^{-1的条件下}，它也显示出433 mAh·g ^-1的高比容量。优异的电化学性能归因于多孔纳米线结构和导电的N掺杂碳基体的协同作用。这些结果表明，将多孔纳米线与N掺杂碳基体结合的协同策略具有巨大的储能潜力。

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