锂离子电池负极材料用纳米铁酸锌的制备及研究进展

铁酸锌（ZnFe₂O₄）因其优良的性能被用作锂离子电池新型负极材料，但ZnFe₂O₄导电性差，充放电过程中的体积效应严重，导致其循环稳定性低、容量衰减快、倍率性能差，限制了其的应用。本文介绍了几种制备纳米铁酸锌及铁酸锌复合材料的方法，通过扫描电子显微镜对纳米级铁酸锌的形貌结构进行了研究，总结了水热法、溶剂热法、静电纺丝技术、共沉淀法、固相反应法等工艺制备铁酸锌，并对制备产物的电化学性能进行了分析，得出了限制其发展的真正原因。

Research progress and preparation of nanometer zinc ferrite used in anode materials of lithium ion batteries

Zinc ferrite (ZnFe₂O₄) is used as a new anode material for the lithium ion batteries due to its excellent performance. However, ZnFe₂O₄ has the poor electrical conductivity and the serious volume effects during the charging and discharging, which results in the low cycle stability, fast capacity decay, and poor rate performance, limiting its application. Several methods for preparing the nano-ZnFe₂O₄ and ZnFe₂O₄ composites were introduced in this paper. The morphology and microstructure of the nano-scale ZnFe₂O₄ were studied by scanning electron microscope (SEM). The electrochemical performance of the products produced by the hydrothermal method, solvothermal method, electrospinning technology, co-precipitation method, and solid-phase reaction method were analyzed, and the real reasons that limited the ZnFe₂O₄ development were summarized.