Abstract Mn3O4 is considered as a promising lithium-ion batteries (LIBs) anode material owing to the high theoretical capacity, appropriate lithiation potential, low cost, and environmentally benign nature. However, the inferior electronic conductivity and dramatic volume expansion during cycling hinder the enhancement of Li ion storage property. Herein, Mn3O4 nanoparticles with the dimension about 18 nm anchoring on carbon nanotubes (CNTs@Mn3O4) are fabricated using CNTs@MnO2 as precursor, which is prepared by a facile method at room temperature. Benefiting from the merits brought by the microstructure and components of hybrid material, the as-prepared CNTs@Mn3O4 electrode delivers a reversible capacity of 895.0 mAh g−1 at 0.5 A g−1 after 200 cycles and 743.7 mAh g−1 at 5.0 A g−1 when used as LIBs anode. Considering the multifunctional property of Mn-based oxides, this work presents a facile method to synthesize Mn-based functional materials for various fields.

中文翻译：

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Mn3O4纳米颗粒锚定在碳纳米管上作为负极材料具有增强的锂存储

摘要 Mn3O4 具有理论容量高、锂化电位合适、成本低和环境友好等优点，被认为是一种很有前途的锂离子电池（LIBs）负极材料。然而，循环过程中较差的电子电导率和剧烈的体积膨胀阻碍了锂离子存储性能的增强。在此，以 CNTs@MnO2 为前驱体，在室温下通过简便的方法制备了尺寸约为 18 nm 的 Mn3O4 纳米粒子，锚定在碳纳米管上（CNTs@Mn3O4）。受益于混合材料的微观结构和组分带来的优点，所制备的 CNTs@Mn3O4 电极在 200 次循环后在 0.5 A g-1 下提供 895.0 mAh g-1 的可逆容量和在 5.0 A 下提供 743.7 mAh g-1 的可逆容量g-1 当用作 LIBs 阳极时。