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首页> 外文期刊>Journal of nanoscience and nanotechnology >Magnetite Nanocrystals as Anode Electrode Materials for Rechargeable Li-Ion Batteries
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Magnetite Nanocrystals as Anode Electrode Materials for Rechargeable Li-Ion Batteries

机译：磁铁矿纳米晶体作为可充电锂离子电池的阳极电极材料

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摘要

Monodispersed magnetite (Fe3O4) nanocrystals were synthesized and their electrochemical properties as anode electrode materials for rechargeable lithium ion batteries were measured. The magnetite anodes, in the form of monodispersed nanospheres with average diameters (<10 nm), show particle size effects. Specifically, the first discharge curves show that the nanocrystals can hold much more Li+ per formula unit than their counterparts in bulk before the reduction begins. The electrolyte decomposition takes place before the reduction reaction is completed. The cycling performance of the Fe3O4 nanocrystals after being heated at 300 degrees C for different lengths of time show that heating can improve the integration of the nanocrystals and increase their capacity retention in consequence.
机译：合成了单分散磁铁矿（Fe3O4）纳米晶体，并测量了其作为可再充电锂离子电池阳极材料的电化学性能。具有平均直径（<10 nm）的单分散纳米球形式的磁铁矿阳极显示出粒径效应。具体而言，第一放电曲线表明，在还原开始之前，纳米晶体每个配方单元所含的Li +数量要多于其相应的整体。电解质分解发生在还原反应完成之前。 Fe3O4纳米晶体在300摄氏度加热不同时间后的循环性能表明，加热可以改善纳米晶体的集成度，从而提高其容量保持率。

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