Y-tube assisted coprecipitation synthesis of iron-based Prussian blue analogues cathode materials for sodium-ion batteries

Zhang, Ruizhong; Liu, Yuao; Liu, Hongquan; Zhong, Yanjun; Zhang, Yuan; Wu, Zhenguo; Wang, Xinlong

doi:10.1039/d4ra00762j

RSC Adv.

2024

DOI: 10.1039/d4ra00762j

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Y-tube assisted coprecipitation synthesis of iron-based Prussian blue analogues cathode materials for sodium-ion batteries

Ruizhong Zhang,

Yuao Liu,

Hongquan Liu

et al.

Abstract: Prussian blue analogues are promising cathode materials for sodium-ion batteries due to their high energy density, low cost, sustainability, and simple synthesis processes.

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Ultrastable Fe-based Prussian Blue Analogs Cathode for Sodium-Ion Battery

Liu,

Chu,

et al. 2024

J. Electrochem. Soc.

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Low-cost Iron-based Prussian blue analogs (PBAs) with ultra-high cycling performance is a promising cathode material for sodium-ion batteries. However, the presence of vacancies occupied by crystal water in the structure of PBA prepared by the traditional co-precipitation method leads to rapid capacity decay of the battery, which significantly limits its practical application. In the present work, we use a modified co-precipitation method to synthesize Fe-based PBAs, which has a cubic structure and offers a large Na+ insertion/extraction channel. The results show that 99.9% of the capacity (108.9 mAh g-1) retained after 100 cycles of tests for the sample with the most outstanding cycling stability (PB-15). In addition, the samples are heat-treated to remove the crystal water from the acquired PBAs. The freshly prepared PB-15 sample is further treated at 180°C. Phase transformation from the cubic structure to the monoclinic phase of the samples is probed after heat treatment. The initial specific capacity of HT-PB-15 is higher than that of PB-15 by 10.2 mAh g-1 and the capacity remained at 117.6 mAh g-1 after 100 cycles, which is the most outstanding cycling performance in the reported results.

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Ultrastable Fe-based Prussian Blue Analogs Cathode for Sodium-Ion Battery

Liu,

Chu,

et al. 2024

J. Electrochem. Soc.

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show abstract

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Y-tube assisted coprecipitation synthesis of iron-based Prussian blue analogues cathode materials for sodium-ion batteries

Abstract: Prussian blue analogues are promising cathode materials for sodium-ion batteries due to their high energy density, low cost, sustainability, and simple synthesis processes.

Cited by 1 publication

References 77 publications

Ultrastable Fe-based Prussian Blue Analogs Cathode for Sodium-Ion Battery

Ultrastable Fe-based Prussian Blue Analogs Cathode for Sodium-Ion Battery

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