Zr掺杂对高性能钠离子电池中Na2+2xFe2-x(SO4)3的电子和晶体结构的协同调节

IF 4.2 2区化学 Q2 CHEMISTRY, MULTIDISCIPLINARY

Chemical Communications Pub Date : 2025-10-01 DOI:10.1039/d5cc04836b

Xianbi Zhang, Shuang Xiang, Xiaobing Huang, Dan Sun, Yougen Tang, Hai-Yan Wang

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引用次数: 0

摘要

设计了具有协同优化电子和晶体结构的Na 2.5 Fe 1.71 Zr 0.02 (so4) 3用于高性能钠离子电池。Zr掺杂引起的轨道相互作用显著提高了其本征电导率。此外，Zr掺杂后Na- o键变长加速了Na +转移动力学。最终，Na 2.5 Fe 1.71 Zr 0.02 (so4) 3在0.1 C下表现出96.4 mAh g -1的高比容量，在30 C下循环10000次后保持85%的保留率。

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Synergistic Electronic and Crystal Structure Regulation of Na2+2xFe2-x(SO4)3 via Zr Doping for High-Performance Sodium-Ion Batteries

Na 2.5 Fe 1.71 Zr 0.02 (SO 4 ) 3 with a synergistically optimized electronic and crystal structure are designed for high-performance sodium ion batteries. The orbital interaction induced by Zr doping significantly improves its intrinsic conductivity. Additionally, the longer Na-O bonds after Zr doping accelerate Na + transfer kinetics. Ultimately, the Na 2.5 Fe 1.71 Zr 0.02 (SO 4 ) 3 exhibits a high specific capacity of 96.4 mAh g -1 at 0.1 C with 85% retention after 10000 cycles at 30 C.

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来源期刊

Chemical Communications 化学-化学综合

CiteScore

8.60

自引率

4.10%

发文量

2705

审稿时长

1.4 months

期刊介绍： ChemComm (Chemical Communications) is renowned as the fastest publisher of articles providing information on new avenues of research, drawn from all the world''s major areas of chemical research.