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Abstract <p>Aqueous zinc-ion batteries (AZIBs) are recognized for their economical nature, ecological compatibility, and strong safety record. Nevertheless, the task of developing cathode materials that possess both a large capacity and reliable performance remains a formidable issue. Here, we propose using VO<sub>2</sub>(B) doped with graphene oxide (VO<sub>2</sub>/GO) as cathode material for AZIBs, prepared via a straightforward hydrothermal method. Graphene oxide significantly improves the rate at which the cathode reacts and allows the cathode to have a high capacity, resulting in a capacity of 542 mA h g<sup>–1</sup> at 0.5 A g<sup>–1</sup>. This study proposes a promising method to enhance the efficiency of cathode materials containing vanadium, hence expediting the advancement of AZIBs.</p>

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Preparation and Properties of VO2(B) Doped with Graphene Oxide As Cathode Material for Aqueous Zinc-Ion Batteries

  • 期刊论文

  • 发表日期：

    2025年9月16日

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  • Xucheng Wang,
  • Yanyu Zhao,
  • Junyuan Zhong,
  • Fan Zhang,
  • Xinxin Hu,
  • Xiangling Tong,
  • Zheyuan Chen,
  • Yangyang Xie,
  • Junfeng Gao

摘要

Abstract

Aqueous zinc-ion batteries (AZIBs) are recognized for their economical nature, ecological compatibility, and strong safety record. Nevertheless, the task of developing cathode materials that possess both a large capacity and reliable performance remains a formidable issue. Here, we propose using VO2(B) doped with graphene oxide (VO2/GO) as cathode material for AZIBs, prepared via a straightforward hydrothermal method. Graphene oxide significantly improves the rate at which the cathode reacts and allows the cathode to have a high capacity, resulting in a capacity of 542 mA h g–1 at 0.5 A g–1. This study proposes a promising method to enhance the efficiency of cathode materials containing vanadium, hence expediting the advancement of AZIBs.