Synergistic Bulk and Interface Engineering of Layered Oxide Cathodes for Na-Ion Batteries

IF 19.3 1区材料科学 Q1 CHEMISTRY, PHYSICAL

ACS Energy Letters Pub Date : 2025-03-04 DOI:10.1021/acsenergylett.4c03601

Xu Yang, Yingfei Li, Xinyu Li, Ting Lin, Weiguang Lin, Peihua Li, Dongdong Xiao, Shurong Wang, Huilin Pan

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Abstract

Na-ion batteries (NIBs) hold promise for large-scale energy storage due to the abundance and low cost of Na resources, but their practical applications are still limited by the energy density and cycling stability of the cathodes. This study develops a synergistic bulk and interfacial modification strategy for O3-type NaNi_1/3Fe_1/3Mn_1/3O₂ (NFM) cathode using CaHPO₄ (CP), integrating Ca doping and uniform NaPO₃ coating to enhance structural stability and interfacial robustness. The modified cathode (2%CP@NFM) delivers excellent performance, retaining 92% capacity over 300 cycles at 2 C, no capacity decay after 400 cycles at 5 C, and 83% capacity retention over 1000 cycles at 1 C in full-cells. Structural analyses reveal remarkable suppression of irreversible phase transitions, gas evolution, and transition metal ion dissolution issues of layered oxide cathodes. These findings highlight the potential of a low-cost CP modification strategy in achieving high-performance NIBs for sustainable energy storage.

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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.