Herein, a bottom‐up electrospinning protocol is first developed to finely synthesize MoO₂ nanocrystals@N‐doped carbon nanofibers (MoO₂ NCs@N‐CNFs) film. The monodispersed MoO₂ NCs of ≈2.1 nm in size are well confined in the 1D N‐CNFs. When evaluated as a self‐supporting anode for quasi‐solid‐state (QS) sodium‐ion batteries (SIBs) using the polyvinylidene fluoride hexafluoropropylene‐based Na⁺‐conducting gel electrolyte, the resultant MoO₂ NCs@N‐CNFs exhibit remarkable Na⁺ storage behaviors in terms of reversible capacities and high‐rate cycling capabilities, benefiting from its synergistically structural and componential merits. More significantly, the contribution herein offers a simple yet efficient method to synthesize advanced hybrid anodes for QS SIBs.

中文翻译：

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柔性MoO2纳米晶体@ N掺杂的碳纳米纤维薄膜作为准固态钠离子电池的自支撑阳极

在此，首先开发了一种自底向上的电纺丝方案，以精细合成MoO ₂纳米晶体@N掺杂的碳纳米纤维（MoO ₂ NCs @ N-CNFs）薄膜。大小约为2.1 nm的单分散MoO ₂ NC很好地局限在一维N-CNF中。当使用聚偏二氟乙烯六氟丙烯基Na ⁺导电凝胶电解质评估为准固态（QS）钠离子电池（SIB）的自支撑阳极时，生成的MoO ₂ NCs @ N-CNF表现出显着的Na ⁺得益于其结构和组件的协同优势，可逆容量和高循环容量方面的存储行为。更重要的是，本文的贡献提供了一种简单而有效的方法来合成用于QS SIB的高级混合阳极。