Smart self-reconstruction of electrode materials for fully recyclable protonic ceramic fuel cells

IF 11 1区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Rare Metals Pub Date : 2025-07-08 DOI:10.1007/s12598-025-03426-4

Yin-Hui Zha, Yue-Xia Ji, Xiao-Long Deng, Hexige Wuliji, Yu-Lin Zhang, Li-Hong Yao, Hu Jia, Zhong-Cheng Zhang, Jia-Feng Cao

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引用次数: 0

Abstract

Despite their high-energy conversion efficiency that has earned them the label of next-generation energy utilization devices, protonic ceramic fuel cells (PCFCs) have not yet fully fulfilled their potential in terms of low-cost integration and environmentally friendly application, which remain significant concerns that heavily influence their progress towards commercial viability. A pragmatic way of cell recycling is extremely helpful for addressing these concerns. Herein, we unveil a novel concept of reusable PCFCs, and propose a comprehensive recycling scheme for discarded PCFCs. In this research, a recycled cell with a recycled single perovskite cathode exhibited a peak power density (PPD) of 1.10 W cm⁻² at 700 °C, comparable to a pristine cell of 1.05 W cm⁻². Metal ion rearrangement and phase evolution during the recycling processes were investigated, which were demonstrated to be in high relevance to the performance of recycled cells. This research constitutes a pioneering exploration of the mechanisms underlying recycling efforts and offers valuable insights into the material recycling of solid-state functional devices used for energy conversion and storage.

Graphical abstract

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全可回收质子陶瓷燃料电池电极材料的智能自重构

尽管质子陶瓷燃料电池（pcfc）的高能量转换效率为其赢得了下一代能源利用设备的标签，但其在低成本集成和环境友好应用方面的潜力尚未完全实现，这仍然是影响其商业可行性进展的重大问题。一种实用的电池回收方法对解决这些问题非常有帮助。在此，我们提出了可重复使用pcfc的新概念，并提出了废弃pcfc的综合回收方案。在本研究中，采用钙钛矿阴极的再生电池在700°C时的峰值功率密度（PPD）为1.10 W cm−2，而原始电池的峰值功率密度为1.05 W cm−2。研究了金属离子在回收过程中的重排和相演变，证明了金属离子重排和相演变与回收电池的性能密切相关。这项研究构成了对回收工作机制的开创性探索，并为用于能量转换和存储的固态功能器件的材料回收提供了有价值的见解。图形抽象

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来源期刊

Rare Metals 工程技术-材料科学：综合

CiteScore

12.10

自引率

12.50%

发文量

2919

审稿时长

2.7 months

期刊介绍： Rare Metals is a monthly peer-reviewed journal published by the Nonferrous Metals Society of China. It serves as a platform for engineers and scientists to communicate and disseminate original research articles in the field of rare metals. The journal focuses on a wide range of topics including metallurgy, processing, and determination of rare metals. Additionally, it showcases the application of rare metals in advanced materials such as superconductors, semiconductors, composites, and ceramics.