Improved sodium storage properties NaFePO4/C as cathode material for sodium-ion batteries

IF 2.8 4区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

Journal of Materials Science: Materials in Electronics Pub Date : 2024-11-18 DOI:10.1007/s10854-024-13817-5

V. Munusami, K. Arutselvan, S. Vadivel, S. Govindasamy

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引用次数: 0

Abstract

Because of the plentiful supply of sodium, sodium ion batteries (SIBs) as one of the most promising technologies for affordable rechargeable batteries. Here, we outline an easy method for creating a NaFePO₄@C hybrid composite cathode for SIBs. GCD, CV, and EIS tests have been conducted to study the samples’ electrochemical and kinematic properties. It is confirmed that modest carbon doping can enhance the electrocatalytic activity of NaFePO₄ (NFP). The resulting NFP@C nanocomposite as cathode material for SIBs displays good rate capability and lofty capacity (158.5 mAhg⁻¹) retention after 50 cycles at 0.1C. The NaFePO₄ and the carbon covering, which make it easier for the Na + ion and electron to access the material quickly during the process of charging and discharging, respectively, are responsible for the good electrochemical performances. This work highlights the value of investigating novel structures and offers a technique for the creation of NaFePO₄@C-based cathodes.

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改进钠离子电池阴极材料 NaFePO4/C 的储钠性能

由于钠的供应充足，钠离子电池（SIB）成为最有前途的经济型充电电池技术之一。在此，我们概述了一种用于钠离子电池的 NaFePO4@C 混合复合阴极的简易制备方法。我们进行了 GCD、CV 和 EIS 测试，以研究样品的电化学和运动特性。结果表明，适度的碳掺杂可以提高 NaFePO4（NFP）的电催化活性。所得的 NFP@C 纳米复合材料作为 SIB 的阴极材料，在 0.1C 下循环 50 次后显示出良好的速率能力和高容量（158.5 mAhg-1）保持率。在充电和放电过程中，NaFePO4 和碳覆盖层分别使 Na + 离子和电子更容易快速进入材料，是其具有良好电化学性能的原因。这项工作凸显了研究新型结构的价值，并为创建基于 NaFePO4@C 的阴极提供了一种技术。

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来源期刊

Journal of Materials Science: Materials in Electronics 工程技术-材料科学：综合

CiteScore

5.00

自引率

7.10%

发文量

1931

审稿时长

2 months

期刊介绍： The Journal of Materials Science: Materials in Electronics is an established refereed companion to the Journal of Materials Science. It publishes papers on materials and their applications in modern electronics, covering the ground between fundamental science, such as semiconductor physics, and work concerned specifically with applications. It explores the growth and preparation of new materials, as well as their processing, fabrication, bonding and encapsulation, together with the reliability, failure analysis, quality assurance and characterization related to the whole range of applications in electronics. The Journal presents papers in newly developing fields such as low dimensional structures and devices, optoelectronics including III-V compounds, glasses and linear/non-linear crystal materials and lasers, high Tc superconductors, conducting polymers, thick film materials and new contact technologies, as well as the established electronics device and circuit materials.