Low-cost H2/K+ hybrid batteries for large-scale energy storage

Shuang Liu, Ying Wang, Zhengxin Zhu, Jingwen Xu, Zuodong Zhang, Kai Zhang, Song Jin, Zehui Xie, Taoli Jiang, Xiaoyang Wang, Zaichun Liu, Jinghao Chen, Qia Peng, Muhammad Sajid, Touqeer Ahmad, Wei Chen

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1 引用 (Scopus)

摘要

Rechargeable hydrogen gas batteries are gaining significant attention as a highly reliable electrochemical energy storage technology. However, the high costs of both cathode and anode limit their widespread applications. Here, we demonstrate a low-cost H2/K+ hybrid battery using Fe–Mn-based Prussian white - K2·74Mn[Fe(CN)6]0.90·0.13H2O (KMF) as cathode and non-noble metal high entropy alloy (NNM-HEA) as anode. It demonstrates a high capacity of 146.1 mAh g−1 at 1 A g−1 with excellent rate performance and stability. Even with a ∼7-fold increase in active loading of the KMF cathode, the capacity of the H2/K+ battery remains as high as 100.5 mAh g−1. Furthermore, a low-cost H2/K+ hybrid battery using our newly developed NNM-HEA based hydrogen catalytic anode is successfully fabricated, which shows an extended capacity with a retention of 90% after 1200 cycles. This work will pave the way for designing low-cost electrode materials for high-performance, large-scale energy storage hydrogen gas batteries.

源语言英语
文章编号234491
期刊Journal of Power Sources
604
DOI
出版状态已出版 - 1 6月 2024
已对外发布

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