Abstract Nanoscale metal oxides based binder-free electrodes have application prospects in the energy storage field. In this work, Fe2O3 nanosheets composited with carbon matrix were prepared via the electrochemical deposition on the dopamine treated stainless steel substrate, followed by annealing treatment. The electrode delivers discharge capacity of 1242 mAh·g−1 at 600 mA·g−1 current density after 100 cycles. Furthermore, the electrode exhibited outstanding rate capability and its reversible capacity reaches to 960 mAh·g−1 at 1800 mA·g−1 current density. The properties of full-cells comprising LiFePO4 cathode were also studied. The improved cycle performance could be attributed to high electronic, ionic conductivity and strong tolerance to volume change benefited from the unique nanostructure and amorphous carbon structure. This work may provide a facile and efficient method for the synthesis of high performance Fe2O3 anode materials.

中文翻译：

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电沉积碳@Fe2O3复合材料作为锂离子电池的无粘合剂负极

摘要 基于纳米级金属氧化物的无粘合剂电极在储能领域具有应用前景。在这项工作中，通过在多巴胺处理的不锈钢基材上进行电化学沉积，然后进行退火处理，制备了与碳基复合的 Fe2O3 纳米片。在 600 mA·g-1 电流密度下，电极在 100 次循环后提供 1242 mAh·g-1 的放电容量。此外，该电极表现出出色的倍率性能，其可逆容量在 1800 mA·g-1 电流密度下达到 960 mAh·g-1。还研究了包含 LiFePO4 阴极的全电池的性能。改进的循环性能可归因于高电子、离子电导率和得益于独特的纳米结构和无定形碳结构的对体积变化的强耐受性。