Research progress on sodium-ion battery cathode materials based on iron-based prussian blue analogues

doi:10.19799/j.cnki.2095-4239.2024.0663

Abstract

Abstract:

The shortage of lithium resources has spurred a research boom in sodium-ion batteries, with Prussian blue analogs (PBAs) becoming a popular choice for cathode materials due to their low cost, fast ion transport, structural stability, and environmental friendliness. Notably, iron-based PBAs(Fe-PBAs) are promising for industrial applications due to the abundance of iron resources. In this study, the structural characteristics, electrochemical reaction properties, and the existing challenges of Fe-PBAs were analyzed, comprehensively reviewing the latest research achievements in synthesis methods and strategies for enhancing electrochemical performance. Optimizing the electrochemical performance of Fe-PBAs hinges upon effectively inhibiting the generation of [Fe(CN)₆] vacancies defect, the introduction of crystallization water, and activating the electrochemical activity of low-spin Fe. In terms of synthesis methods, the latest advancements in mainstream technological pathways such as coprecipitation, hydrothermal synthesis, and ball milling, showcasing the diversity and development potential of Fe-PBAs preparation techniques were reviewed. To enhance the electrochemical performance of Fe-PBAs, this study systematically summarize the enhancement mechanisms, application effects, and potential limitations of strategies such as ion doping, morphology and structure regulation, surface coating modification, synthesis process optimization, and electrolyte optimization, based on the latest research findings. Finally, this study discuss the future trends and directions for the development of Fe-PBAs, emphasizing the importance of continuous optimization of manufacturing processes, exploring new avenues for in-depth modification and enhancement, leveraging AI technology, and applying novel reactor technologies. This study aims to provide valuable references for research and applications in the field of Fe-PBAs cathode materials and sodium-ion batteries.

Key words: sodium-ion batteries, cathode materials, iron-based Prussian blue analogues, electrochemical performance

CLC Number:

TM 912.9

Lishuai ZHANG, Yifei ZHANG, Yiyang MA, Sibo ZHAO, Hongquan LIU, Shengting SHI, Yanjun ZHONG. Research progress on sodium-ion battery cathode materials based on iron-based prussian blue analogues[J]. Energy Storage Science and Technology, 2025, 14(2): 525-543.

Figures/Tables 8

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电解液组成	电压范围/V	比容量/(mAh/g）	电流密度/(mA/g)	循环性能	文献
1.0 mol/L NaPF₆ in EC/PC (1∶1, 体积比)	2.0~4.2	131, 99.8	17 340	200次，82.9% (170 mA/g)	[130]
1.0 mol/L NaPF₆ in PC/EMC/FEC/亚硫酸丙烯酯(PST)/亚硫酸乙烯酯(DTD) (40∶58∶2∶1∶1, 体积比)	2.0~4.0	106.5	170	500次，96.7% (170 mA/g)	[131]
1.0 mol/L NaClO₄ in EC/PC (1∶1, 体积比)	2.0~3.9	58.3	1000	1000次，59.7% (1000 mA/g)	[131]
1 mol/L NaClO₄ in EC/DMC = (1∶1) with 1% (体积分数) FEC	2.0~4.0	105	200	1000次，69.1% (200 mA/g)	[132]
1.0 mol/L NaClO₄ in DEC/EC/FEC (1∶1∶0.05, 体积比)	2.0~4.0	145.3	34	1000次，54.5% (34 mA/g)	[133]
1 mol/L NaPF₆ in PC with 10% (体积分数) FEC	2.0~4.2	96.8	9000	500次，61.6% (500 mA/g)	[134]
1 mol/L NaPF₆ in EC/DEC (1∶1, 体积比）	2.0~4.2	115	50	150次，96% (50 mA/g)	[134]
1 mol/L NaClO₄ in EC/DMC/EMC (1∶1∶1, 体积比) with 5% (体积分数) FEC	2.0~4.2	113	1600	400次，80% (800 mA/g)	[135]

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