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Graphene-Based Nanomaterials for Sodium-Ion Batteries

机译：石墨烯基钠离子电池纳米材料

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摘要

Sodium-ion batteries (SIBs) are considered as promising candidates for large-scale energy storage systems due to the wide availability and low cost of raw sodium resources. However, the heavier mass and larger radius of Na+ inevitably result in lower electrochemical kinetics and larger volume expansion of active materials than that of lighter and smaller Li+. To solve these problems, rational electrode design by integrating nanomaterials with graphene is an effective approach. In this review, the authors mainly focus on recent progress of graphene-based nanomaterials for SIBs, including their design principle, preparation, characterization, and electrochemical performance. The important roles of graphene in graphene-based inorganic and organic electrode materials are discussed in depth. In such composites, graphene can effectively enhance the electrical conductivity and mitigate volume change due to the robust and highly conductive networks formed by graphene. Moreover, the nanosized materials can enhance the reaction kinetics. Future research should focus on revealing the interaction mechanism between graphene and active materials, and improving the whole energy/power density, cycling stability, and the initial Coulombic efficiency of graphene-based nanomaterials via elaborate design.
机译：钠离子电池（SIB）被认为是大规模储能系统的有希望的候选者，因为其原始钠资源的可用性高且成本低。但是，与较轻和较小的Li +相比，Na +的较大质量和较大半径不可避免地导致较低的电化学动力学和较大的活性物质体积膨胀。为了解决这些问题，通过将纳米材料与石墨烯集成在一起进行合理的电极设计是一种有效的方法。在这篇综述中，作者主要关注用于SIB的石墨烯基纳米材料的最新进展，包括其设计原理，制备，表征和电化学性能。深入讨论了石墨烯在石墨烯基无机和有机电极材料中的重要作用。在此类复合材料中，由于石墨烯形成的坚固且高度导电的网络，石墨烯可有效增强电导率并减轻体积变化。而且，纳米级材料可以增强反应动力学。未来的研究应着重于揭示石墨烯与活性材料之间的相互作用机理，并通过精心设计提高石墨烯基纳米材料的整体能量/功率密度，循环稳定性和初始库伦效率。

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  • 来源
    《Advanced energy materials》 |2018年第17期|1702469.1-1702469.21|共21页
  • 作者

    Lu Yong; Lu Yanying; Niu Zhiqiang; Chen Jun;

  • 作者单位

    Nankai Univ, Coll Chem, Minist Educ, Key Lab Adv Energy Mat Chem, Tianjin 300071, Peoples R China;

    Nankai Univ, Coll Chem, Minist Educ, Key Lab Adv Energy Mat Chem, Tianjin 300071, Peoples R China;

    Nankai Univ, Coll Chem, Minist Educ, Key Lab Adv Energy Mat Chem, Tianjin 300071, Peoples R China;

    Nankai Univ, Coll Chem, Minist Educ, Key Lab Adv Energy Mat Chem, Tianjin 300071, Peoples R China;

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  • 正文语种 eng
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  • 关键词

    composites; graphene; nanomaterials; organic materials; sodium-ion batteries;

    机译：复合材料;石墨烯;纳米材料;有机材料;钠离子电池;

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