From green cathode material to sustainable energy technology: A holistic approach

Next Materials Pub Date : 2025-07-22 DOI:10.1016/j.nxmate.2025.100970

Triantafillos Tsoukas , Nikos Kavousanos , Christina Floraki , Maria Apostolopoulou , Ricardo Santamaria Ramirez , Dimitra Vernardou

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Abstract

This study presents the development and preliminary evaluation of aqueous lithium-ion battery (ALIB) systems, employing LiFePO₄ (LFP) cathodes paired with Li₄Ti₅O₁₂ (LTO) anodes. ALIBs represent a promising alternative to traditional lithium-ion batteries due to improved safety, enhanced ionic conductivity, reduced environmental impact, and lower production costs. To support sustainability, nickel-plated aluminum current collectors were employed to improve conductivity and electrode adhesion. LiFePO₄ cathodes synthesized under optimized conditions exhibited crystallinity and uniform morphology, as verified by X-ray diffraction (XRD) and scanning electron microscopy (SEM). Spray deposition was found to be an effective method for preparing stable cathode layers with potential for scalability. Electrochemical evaluations demonstrated that the pairing of an LFP cathode with an LTO anode in an aqueous system, reported for the first time, exhibited stable cycling behavior and coulombic efficiency. These findings mark an important step forward in advancing environmentally sustainable and scalable aqueous lithium-ion energy storage solutions.

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从绿色正极材料到可持续能源技术：一个整体的方法

本研究介绍了水性锂离子电池（ALIB）系统的开发和初步评估，采用LiFePO₄（LFP）阴极与Li₄Ti₅O₁₂（LTO）阳极配对。由于提高了安全性，增强了离子电导率，减少了对环境的影响，并且降低了生产成本，alib代表了传统锂离子电池的一个有前途的替代品。为了支持可持续性，采用镀镍铝集流器来提高电导率和电极附着力。通过x射线衍射（XRD）和扫描电镜（SEM）验证了在优化条件下合成的LiFePO₄阴极的结晶度和形貌均匀。发现喷雾沉积是制备具有可扩展性的稳定阴极层的有效方法。电化学评价表明，首次报道的LFP阴极与LTO阳极在水溶液体系中的配对，表现出稳定的循环行为和库仑效率。这些发现标志着在推进环境可持续和可扩展的水锂离子储能解决方案方面迈出了重要的一步。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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