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<p>Understanding dynamic processes in battery materials under real-time conditions is critical for advancing electrochemical storage technologies. Here, we develop an <i>operando</i> optical technique to probe changes in the wide-field reflectance of vanadium oxide cathodes during cycling in aqueous Zn-ion batteries by using a budget-friendly experimental setup and lab-made Python code. The results indicate that brightness of the vanadium oxide was dramatically changed with intercalation process at certain states-of-(dis)charge. Our methodology correlates wide-field reflectance changes with electrochemical behavior, enabling <i>operando</i> monitoring of the materials' evolution in aqueous battery systems.</p> Graphical abstract <p></p>

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The linkage between optical and electrochemical properties of V2O5 cathodes during cycling in aqueous Zn-ion batteries using wide-field reflectivity

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年8月19日

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  • Hunter Maclennan,
  • Bret Marckx,
  • Ömer Özgür Capraz

摘要

Understanding dynamic processes in battery materials under real-time conditions is critical for advancing electrochemical storage technologies. Here, we develop an operando optical technique to probe changes in the wide-field reflectance of vanadium oxide cathodes during cycling in aqueous Zn-ion batteries by using a budget-friendly experimental setup and lab-made Python code. The results indicate that brightness of the vanadium oxide was dramatically changed with intercalation process at certain states-of-(dis)charge. Our methodology correlates wide-field reflectance changes with electrochemical behavior, enabling operando monitoring of the materials' evolution in aqueous battery systems.

Graphical abstract