In this work, a hybrid strategy for preparing a mesoporous Ca₂Fe₂O₅/α-Fe₂O₃ nanocomposite has been demonstrated to exhibit great electrochemical performance as anode materials for lithium-ion batteries. The mesoporous Ca₂Fe₂O₅/α-Fe₂O₃ nanocomposite has been synthesized through the mixture of Ca/Fe-hydroxides and deionized water via a facile solvothermal process followed by calcination at 700 °C with air atmosphere. The prepared mesoporous Ca₂Fe₂O₅/α-Fe₂O₃ nanocomposite shows great rate capability, excellent cycling stability, and high specific capacity associated with surface capacitance-controlled capacity. The high performance can be ascribed to the beneficial effects of the unique mesoporous nanocomposite, which buffers the volume change during electrode reactions, increases the contact area of the electrode/electrolyte, facilitates electrolyte diffuse and favors Li⁺ transport.

在这项工作中，用于制备中孔钙混合策略₂的Fe ₂ ö ₅ /的α-Fe ₂ ö ₃纳米复合材料已被证明表现出很大的电化学性能作为负极材料的锂离子电池。中孔的Ca ₂的Fe ₂ ö ₅ /的α-Fe ₂ ö ₃纳米复合材料已经通过溶剂热容易处理接着煅烧在700℃下与空气气氛通过钙/铁氢氧化物和去离子水的混合物来合成。将所制备的介孔的Ca ₂的Fe ₂ ö ₅ /的α-Fe ₂ ö ₃纳米复合材料显示出极高的倍率能力，出色的循环稳定性以及与表面电容控制的容量相关的高比容量。高性能归因于独特的介孔纳米复合材料的有益效果，该特性可缓冲电极反应过程中的体积变化，增加电极/电解质的接触面积，促进电解质扩散并有利于Li ⁺传输。