Fe2O3@C nanocomposites as anode materials for lithium- and sodium ion batteries with high cyclic stability

氧化铁纳米材料及其衍生化合物具有合成简单、成本低、毒性低、容量大等优点，在锂离子电池和钠离子电池中具有潜在的储能潜力。因此，我们建议研究Fe_2O_3基碳纳米复合材料的生长机理、合成路线以及结构、磁性和电化学性质。这将通过将东道主团队的能力结合起来实现，即凝聚态物理和材料科学，包括一个电池实验室，以及在氧化物纳米结构合成方面具有丰富经验的国际知名无机化学家扎哈罗娃博士。特别是，我们将详细研究氧化铁纳米复合材料的结构、形貌和颗粒尺寸对其物理和电化学性能的影响。重点是对材料进行改进，以寻求具有良好的循环稳定性和放电容量的新型负极材料。主要的科学目标是：(1)从根本上了解锂离子电池的生长机理和合成路线；(2)寻找具有良好循环稳定性和放电容量的锂离子电池负极材料。

Due to easy synthesis, low cost, low toxicity, and high capacity, iron oxides nanomaterials and derived compounds are particularly promising regarding their potential for energy storage in Li- and Na-ion batteries. We hence propose to study the growth mechanisms and synthesis routes as well as the structural, magnetic, and electrochemical properties of Fe2O3-based carbon nanocomposites. This will be achieved by combining the competences of the host team, i.e. condensed matter physics and materials science including a battery laboratory, and of Dr. Zakharova, who is an internationally renowned inorganic chemist with great experience in synthesis of oxide nanostructures. In particular, we will study in detail the effect of structure, morphology, and particle size of the iron oxide nanocomposites on their physical and electrochemical properties. Particular emphasis will be put on improving the material aiming at a novel anode material with a good cycling stability and discharge capacity. The main scientific aims are (1) to gain fundamental understanding of growth mechanisms and synthesis routes, and (2) to search for anode material of Li- and Na-ion batteries with a good cycling stability and discharge capacity.