Abstract Anode materials with high Li storage capacity and fast charging/discharging characteristics are necessary to produce high-performance lithium-ion batteries (LIBs) for future clean electric and hybrid vehicles. Several researchers have suggested that nanomaterials with excellent electrochemical performances have the potential to overcome the limitations of current LIBs. However, owing to their complex synthetic fabrication methods, low tap density, and poor first coulombic efficiency, they are not favorable as commercial anode materials. In this study, we introduce a straightforward strategy to fabricate anode materials based on commercially suitable graphite to satisfy the requirements of future LIBs. Graphite was modified by ball-milling and mild oxidation, which led to an increase in the number of exposed edges and anchoring sites between the graphite and the amorphous molybdenum sulfide (MoSx). MoSx, which is an important component of several high capacity materials, was stable under a high C-rate condition owing to its oxygen functional groups. The MoSx@B-rGtO electrode exhibited excellent specific capacity (1239 and 403 mAh g−1 at current densities of 0.13 and 2.60 A g−1, respectively) and cycling stability (1016 mAh g−1 after 100 cycles). Therefore, we believe that our graphite-based anode material can be used as a potential LIB electrode for future electric automobiles.

中文翻译：

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嵌入改性石墨边缘的无定形 MoSx 作为可充电电池的快速充电负极材料

摘要 具有高储锂容量和快速充放电特性的负极材料对于生产用于未来清洁电动汽车和混合动力汽车的高性能锂离子电池（LIBs）是必不可少的。一些研究人员认为，具有优异电化学性能的纳米材料有可能克服当前 LIB 的局限性。然而，由于其合成制造方法复杂、振实密度低和第一库仑效率差，它们不适合作为商业负极材料。在这项研究中，我们引入了一种简单的策略来制造基于商业合适石墨的负极材料，以满足未来 LIB 的要求。石墨经球磨和轻度氧化改性，这导致石墨和无定形硫化钼 (MoSx) 之间的暴露边缘和锚定点数量增加。MoSx 是几种高容量材料的重要组成部分，由于其氧官能团，在高 C 速率条件下是稳定的。MoSx@B-rGtO 电极表现出优异的比容量（1239 和 403 mAh g-1，电流密度分别为 0.13 和 2.60 A g-1）和循环稳定性（100 次循环后为 1016 mAh g-1）。因此，我们相信我们的石墨基负极材料可用作未来电动汽车的潜在 LIB 电极。MoSx@B-rGtO 电极表现出优异的比容量（1239 和 403 mAh g-1，电流密度分别为 0.13 和 2.60 A g-1）和循环稳定性（100 次循环后为 1016 mAh g-1）。因此，我们相信我们的石墨基负极材料可用作未来电动汽车的潜在 LIB 电极。MoSx@B-rGtO 电极表现出优异的比容量（1239 和 403 mAh g-1，电流密度分别为 0.13 和 2.60 A g-1）和循环稳定性（100 次循环后为 1016 mAh g-1）。因此，我们相信我们的石墨基负极材料可用作未来电动汽车的潜在 LIB 电极。