Vanadium Pentoxide (V₂O₅) is an appealing cathode candidate for Zinc-ion batteries (ZIBs) owing to its modifiable interlayer structure and changeable chemical redox states. However, the extensive practical application is deeply plagued by either poor rate capability or cycling stability performance. Herein, the methyl group decorated V₂O₅ with hydrangea-like morphology was successfully fabricated by a facile solvothermal method to solve the problem. Such a hydrangea-shaped architecture containing numerous nanosheets is advantageous for the rapid ions/electrons transfer. The extended interlayer distance stemmed from the pillar effect of the methyl-functionalized V₂O₅ contributes a comparatively steady and rapid Zn²⁺ intercalation/deintercalation. When applied in ZIBs, it delivers a superior rate capability (123 mA h g^-1 at 4.0 A g^-1) and an excellent long-life cycling (capacity retention of 112.7% after 1000 cycles at 4.0 A g^-1). Electrochemical kinetics investigations of methyl-functionalized V₂O₅ microsphere show that the capacity is dominantly contributed from pseudocapacitance. As well, mechanism of zinc ion storage has been explored. Such a structural design of electrode materials can be exploited to promote extensive applications of ZIBs in future.

五氧化二钒 (V ₂ O ₅ ) 是一种有吸引力的锌离子电池 (ZIBs) 正极候选材料，因为它具有可改变的层间结构和可变的化学氧化还原状态。然而，广泛的实际应用深受倍率性能或循环稳定性性能差的困扰。在此，通过简便的溶剂热法成功地制备了具有类似绣球花形貌的甲基修饰的V ₂ O _{5以解决该问题。}这种包含大量纳米片的绣球花形结构有利于离子/电子的快速转移。层间距离的延长源于甲基官能化 V ₂ O _{5的柱效应}有助于相对稳定和快速的Zn ²⁺嵌入/脱嵌。当应用于 ZIB 时，它提供了卓越的倍率性能（4.0 A g -1 时为 123 mAh g -1 ^） 和 出色^的长寿命循环（在 4.0 A g ^-1下 1000 次循环后容量保持率为 112.7% ）。甲基功能化V ₂ O ₅微球的电化学动力学研究表明，容量主要来自赝电容。此外，还探索了锌离子储存的机制。电极材料的这种结构设计可用于促进 ZIBs 未来的广泛应用。