Abstract To solve the poor conductivity of the anode materials for lithium-ion batteries (LIBs) and enhance the lithium-ion transportation, silver-incorporated Fe2O3-C (Fe2O3-C-Ag) porous microcubes were fabricated through polydopamine reduction of AgNO3 and subsequently high temperature carbonization process using the prussian blue as template. Interestingly, polydopamine not only served as reducing agent for Ag+ but also as carbon source in this work, which avoid adding additional reduction agent and high temperature, resulting in a simple and mild reduction condition. When Fe2O3-C-Ag microcubes were performed as anode materials for lithium-ion batteries (LIBs), the hybrid materials behaved pretty electrochemical properties. The introduction of noble metal (Ag) and carbon to transition metal oxides was an innovative method to form anode materials for lithium-ion batteries (LIBs), which can effectively increase the conductivity of the electrode materials as well as inhibit the volume expansion during cycling. With 10% (wt%) Ag nanoparticles coating in the hybrid composites, the Fe2O3-C-Ag-10 microcubes exhibit good reversible capacities and pretty cyclic performance (858 mAh g−1 after 200 cycles at 100 mA g−1). This novel approach can provide a potential idea to design advanced anode materials for LIBs.

中文翻译：

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通过合理引入Ag纳米粒子，多孔Fe 2 O 3 -C微立方体作为锂离子电池的负极

摘要 为解决锂离子电池（LIBs）负极材料导电性差的问题，增强锂离子的传输能力，通过聚多巴胺还原 AgNO3 制备了掺银 Fe2O3-C（Fe2O3-C-Ag）多孔微立方体，随后制备了含银 Fe2O3-C（Fe2O3-C-Ag）多孔微立方体。以普鲁士蓝为模板的高温碳化工艺。有趣的是，在这项工作中，聚多巴胺不仅作为Ag+的还原剂，而且作为碳源，避免了添加额外的还原剂和高温，导致还原条件简单温和。当 Fe2O3-C-Ag 微立方体被用作锂离子电池 (LIBs) 的负极材料时，混合材料表现出很好的电化学性能。将贵金属（Ag）和碳引入过渡金属氧化物是形成锂离子电池（LIBs）负极材料的一种创新方法，可有效提高电极材料的导电性并抑制循环过程中的体积膨胀. 在混合复合材料中涂覆 10% (wt%) Ag 纳米粒子后，Fe2O3-C-Ag-10 微立方体表现出良好的可逆容量和良好的循环性能（100 mA g-1 下 200 次循环后为 858 mAh g-1）。这种新颖的方法可以为设计用于 LIB 的先进负极材料提供潜在的思路。Fe2O3-C-Ag-10 微立方体表现出良好的可逆容量和良好的循环性能（100 mA g-1 下 200 次循环后为 858 mAh g-1）。这种新颖的方法可以为设计用于 LIB 的先进负极材料提供潜在的思路。Fe2O3-C-Ag-10 微立方体表现出良好的可逆容量和良好的循环性能（100 mA g-1 下 200 次循环后为 858 mAh g-1）。这种新颖的方法可以为设计用于 LIB 的先进负极材料提供潜在的思路。