Abstract There are increasing interests in fabricating Fe2O3 anode materials in recent years owing to their high theoretical capacity and natural abundance. However, Fe2O3 anode materials encounter great challenges in association with their intrinsic poor electronic conductivity and drastic volume variation during cycling. Herein, rod-like Fe2O3 is prepared through a simple thermal decomposition method. When evaluated as anode material for LIBs, the rod-like Fe2O3 exhibits excellent rate capability (∼400 mAh g−1 capacity even at high current density of 7 A g−1). Furthermore, high reversible capacity of ∼500 mAh g−1 can be retained at 3 A g−1 after 1000 cycles. This work demonstrates that the thermal decomposition method is facile and efficient for the preparation of high-performance Fe2O3 anode materials for LIBs.

中文翻译：

---

一种具有优异储锂性能的棒状Fe2O3的简单制备

摘要 近年来，Fe2O3 负极材料具有较高的理论容量和丰富的天然资源，因此越来越受到人们的关注。然而，Fe2O3 负极材料由于其固有的电子导电性差和循环过程中的剧烈体积变化而面临巨大挑战。在此，棒状 Fe2O3 是通过简单的热分解方法制备的。当被评估为 LIB 的负极材料时，棒状 Fe2O3 表现出优异的倍率性能（即使在 7 A g-1 的高电流密度下，容量约为 400 mAh g-1）。此外，1000 次循环后，在 3 A g-1 下仍可保持约 500 mAh g-1 的高可逆容量。这项工作表明，热分解方法可以简便有效地制备用于锂离子电池的高性能 Fe2O3 负极材料。