Enhanced Sodium Storage and Thermal Safety of NaNi1/3Fe1/3Mn1/3O2 Cathode via Incorporation of TiN and WO3

IF 8.2 2区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

ACS Applied Materials & Interfaces Pub Date : 2025-01-27 DOI:10.1021/acsami.4c16852

Zhipeng Qin, Yingying Liu, Yucan He, Pengcheng Wang, Guiying Zhao, Hurong Yao, Yingbin Lin, Zhigao Huang, Jiaxin Li

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Abstract

This study proposes an efficient, cost-effective, and industrially scalable electrode modulation strategy, which involves directly adding a small amount of high thermal and high conductance TiN and well interface compatible WO₃ to NaNi_1/3Fe_1/3Mn_1/3O₂ (NaNFMO-TW) cathode slurry, to effectively reduce electrode polarization and interface side reactions, reduce the Ohmic heat and polarization heat of the battery, and ultimately to significantly improve the sodium-ion storage and thermal safety performance of the battery. At room temperature (RT) and 1C rate, the modified NaNFMO-TW electrode exhibits a reversible capacity of ∼95 mAh g^–1 after 300 cycles, with a capacity retention rate of 82.6%, being higher than the 50.7% for NaNFMO. Furthermore, the assembled pouch battery with NaNFMO-TW retains 58.2% capacity after 300 cycles at RT&0.5C, being conspicuously superior to the 46.1% achieved by the NaNFMO||HC battery. In particular, adiabatic thermal tests and infrared thermal imaging tests reveal a marked improvement in the thermal safety of the modified battery, with a reduction in surface temperature of ∼1.3 and ∼2.2 °C during 3C charging and discharging, respectively. Moreover, the results confirmed the performance enhancement mechanism of NaNFMO by addition of TiN and WO₃. Such electrode modulation strategy provides a practical method for improving battery performance.

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通过掺入 TiN 和 WO3 增强 NaNi1/3Fe1/3Mn1/3O2 阴极的钠储存和热安全性

本研究提出了一种高效、经济、可工业化扩展的电极调制策略，即在NaNi1/3Fe1/3Mn1/3O2 （NaNFMO-TW）阴极浆料中直接加入少量高热、高导TiN和界面兼容良好的WO3，有效减少电极极化和界面副反应，降低电池的欧姆热和极化热。并最终显著提高电池的钠离子存储和热安全性能。在室温（RT）和1C倍率下，经过300次循环后，修饰的NaNFMO- tw电极的可逆容量为~ 95 mAh g-1，容量保持率为82.6%，高于NaNFMO的50.7%。此外，使用NaNFMO- tw组装的袋状电池在室温0.5℃下循环300次后仍能保持58.2%的容量，明显优于NaNFMO||HC电池的46.1%。特别是，绝热测试和红外热成像测试表明，改性电池的热安全性得到了显著改善，在3C充电和放电过程中，表面温度分别降低了~ 1.3°C和~ 2.2°C。此外，研究结果证实了添加TiN和WO3对纳米fmo性能的增强机理。这种电极调制策略为提高电池性能提供了实用的方法。

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来源期刊

ACS Applied Materials & Interfaces 工程技术-材料科学：综合

CiteScore

16.00

自引率

6.30%

发文量

4978

审稿时长

1.8 months

期刊介绍： ACS Applied Materials & Interfaces is a leading interdisciplinary journal that brings together chemists, engineers, physicists, and biologists to explore the development and utilization of newly-discovered materials and interfacial processes for specific applications. Our journal has experienced remarkable growth since its establishment in 2009, both in terms of the number of articles published and the impact of the research showcased. We are proud to foster a truly global community, with the majority of published articles originating from outside the United States, reflecting the rapid growth of applied research worldwide.