多功能隧道结构界面调制有望实现快速充电和长寿命的钠层氧化物

IF 19.3 1区材料科学 Q1 CHEMISTRY, PHYSICAL

ACS Energy Letters Pub Date : 2025-05-19 DOI:10.1021/acsenergylett.5c01161

Xin-Yu Zhang, Ling-Yi Kong, Junjie Ding, Yan-Fang Zhu, Jia-Yang Li, Zhuang-Chun Jian, Hanshen Xin, Meng-Ying Li, Peng Tan, Wei Kong Pang, Shi-Xue Dou, Yao Xiao

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引用次数: 0

摘要

钠离子层状氧化物以其环境友好和易于合成而闻名，然而，开发具有快速Na+传输动力学、坚固结构和空气/水稳定性的阴极以实现钠离子电池（sib）的快速充电和长寿命的层状氧化物阴极仍然是一个巨大的挑战。在此，我们提出了多功能隧道界面调制的概念，以稳定P2-Na2/3Ni1/3Mn1/3Ti1/3O2的相结构。利用具有s通道的Na0.44MnO2的独特结构，用水性粘合剂制备的修饰电极在2C下循环4000次后容量保持率达到80.87%。应力模拟计算结果表明，隧道结构在循环过程中可以消除P2相的机械应力。总之，这种多功能隧道界面调制为快速充电和长寿命sib的发展提供了新的研究方向。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Multifunctional Tunnel Structural Interfacial Modulation Promises Fast-Charge and Long-Life Na-Layered Oxides

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Multifunctional Tunnel Structural Interfacial Modulation Promises Fast-Charge and Long-Life Na-Layered Oxides

Na-layered oxides are famous for their environmental friendliness and facile synthesis, however, developing cathodes with fast Na⁺ transport kinetics, robust structure, and air/water stability to realize fast-charge and long-life layered oxide cathodes for sodium-ion batteries (SIBs) remains a great challenge. Herein, we propose the concept of multifunctional tunnel interfacial modulation to stabilize the phase structure of P2-Na_2/3Ni_1/3Mn_1/3Ti_1/3O₂. Relying on the unique structure of the Na_0.44MnO₂ with S-channel, the modified electrode prepared with an aqueous binder achieves capacity retention of 80.87% after 4000 cycles at 2C. The calculation results of stress simulation reveal that the tunnel structure could dissipate the mechanical stress of the P2 phase upon cycling. Overall, such multifunctional tunnel interfacial modulation provides a new research direction for the development of fast-charge and long-life SIBs.

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来源期刊

ACS Energy Letters Energy-Renewable Energy, Sustainability and the Environment

CiteScore

31.20

自引率

5.00%

发文量

469

审稿时长

1 months

期刊介绍： ACS Energy Letters is a monthly journal that publishes papers reporting new scientific advances in energy research. The journal focuses on topics that are of interest to scientists working in the fundamental and applied sciences. Rapid publication is a central criterion for acceptance, and the journal is known for its quick publication times, with an average of 4-6 weeks from submission to web publication in As Soon As Publishable format. ACS Energy Letters is ranked as the number one journal in the Web of Science Electrochemistry category. It also ranks within the top 10 journals for Physical Chemistry, Energy & Fuels, and Nanoscience & Nanotechnology. The journal offers several types of articles, including Letters, Energy Express, Perspectives, Reviews, Editorials, Viewpoints and Energy Focus. Additionally, authors have the option to submit videos that summarize or support the information presented in a Perspective or Review article, which can be highlighted on the journal's website. ACS Energy Letters is abstracted and indexed in Chemical Abstracts Service/SciFinder, EBSCO-summon, PubMed, Web of Science, Scopus and Portico.