High‐Entropy Engineering of 1D Na4Fe3(PO4)2P2O7: Unlocking Exceptional Capacity and Ultrahigh Rate Capability for Sodium‐Ion Battery Cathodes DOI

Xuntao Zhang,

Xinxin Yin,

Huan Ma

et al.

Small, Journal Year: 2025, Volume and Issue: unknown

Published: April 27, 2025

Abstract Na 4 Fe 3 (PO ) 2 P O 7 is thought to be a promising cathode material for sodium‐ion batteries (SIBs) because of its inexpensive cost and quick 3D pathways sodium ion migration. However, traditional modified methods often result in the formation electrochemically inactive triphylite NaFePO low‐capacity NaFeP , alongside low electronic conductivity, leading capacity loss . Herein, this investigation presents initial development an innovative 1D, high‐entropy 2.5 (MgCuZnNiCo) 0.1 (NFPP‐HEES) tailored SIBs, utilizing electrostatic spinning technology first instance, which exhibits incredible reversible ultrahigh rate performance. The electrochemical activity Ni 2+ contributes maintenance high specific NFPP‐HEES, reaching 127.6 mAh g −1 Additionally, Zn, Co, Cu, Mg serve as structural pillars, minimizing cell volume change NFPP‐HEES remarkable 0.02%. This results improved performance cycling stability, especially at 50 C, where remains 90 synergetic effect ions significantly narrows bandgap diminishes + diffusion energy barrier, thereby substantially improving kinetic research novel strategy advancement SIBs materials with superior capability.

Language: Английский

Unlocking the Potential: Na4Fe3(PO4)2(P2O7) Supporting the Innovation of Commercial Sodium‐Ion Batteries DOI Open Access
Cong Liu, Zhi Zhang,

Huanyi Liao

et al.

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 26, 2025

Abstract Sodium‐ion batteries (SIBs) are highly anticipated as an efficient energy storage solution in addressing contemporary challenges. The pursuit of high‐performance cathode materials is critical for the commercialization SIBs. Among contenders, Na 4 Fe 3 (PO ) 2 (P O 7 (NFPP) one most promising commercial due to its stable structure framework and excellent sodium capability. Although research on NFPP has achieved great progress, especially last 10 years, timely dedicated summary progress prospect this rising star SIBs not been reported. This review provides a comprehensive overview advancement material In review, crystal mechanism examined first. Then, different proposed preparation methods have elaborated following section. After that, optimization strategies discussed enhance performance detail. At last, gap between current practical application highlighted, possible future directions proposed.

Language: Английский

Citations

0
High‐Entropy Engineering of 1D Na4Fe3(PO4)2P2O7: Unlocking Exceptional Capacity and Ultrahigh Rate Capability for Sodium‐Ion Battery Cathodes DOI

Xuntao Zhang,

Xinxin Yin,

Huan Ma

et al.

Small, Journal Year: 2025, Volume and Issue: unknown

Published: April 27, 2025

Abstract Na 4 Fe 3 (PO ) 2 P O 7 is thought to be a promising cathode material for sodium‐ion batteries (SIBs) because of its inexpensive cost and quick 3D pathways sodium ion migration. However, traditional modified methods often result in the formation electrochemically inactive triphylite NaFePO low‐capacity NaFeP , alongside low electronic conductivity, leading capacity loss . Herein, this investigation presents initial development an innovative 1D, high‐entropy 2.5 (MgCuZnNiCo) 0.1 (NFPP‐HEES) tailored SIBs, utilizing electrostatic spinning technology first instance, which exhibits incredible reversible ultrahigh rate performance. The electrochemical activity Ni 2+ contributes maintenance high specific NFPP‐HEES, reaching 127.6 mAh g −1 Additionally, Zn, Co, Cu, Mg serve as structural pillars, minimizing cell volume change NFPP‐HEES remarkable 0.02%. This results improved performance cycling stability, especially at 50 C, where remains 90 synergetic effect ions significantly narrows bandgap diminishes + diffusion energy barrier, thereby substantially improving kinetic research novel strategy advancement SIBs materials with superior capability.

Language: Английский

Citations

0