Enhanced electrochemical performance of LiFePO4 by coating with metal-azolate framework-5 (MAF-5) as the cathode in lithium-ion batteries

IF 4.4 3区化学 Q1 CHEMISTRY, INORGANIC & NUCLEAR Inorganic Chemistry Communications Pub Date : 2025-03-13 DOI:10.1016/j.inoche.2025.114322

Apang Djafar Shieddieque , Kiki Maesaroh , Ghefira Iftina Zahra , Muhamad Diki Permana , Takahiro Takei , Irkham , Abdulloh Rifai , Rudiawan Edwin , Joddy Arya Laksmono , Sahrul Hidayat , Iman Rahayu

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Abstract

The development of efficient and stable cathode materials is a critical challenge in advancing lithium-ion battery (LIB) technology. This study proposes commercial LiFePO₄ (LFP) coated with metal-azolate framework-5 (MAF-5). In this study, MAF-5 was carbonized (C_MAF-5) and coated using in situ growth. X-ray diffraction patterns and infrared spectra show that LFP/C_MAF-5 was successfully synthesized without disrupting the crystal structure of LFP. Electron microscopy confirmed C_MAF-5coated onto LFP with a thickness of 1–5 nm. Electrochemical performance tests of LFP/C_MAF-5 showed a specific charge–discharge capacity of 160 mAh/g at 0.1 C and a stable capacity retention of ∼110 mAh/g at 5 C, with excellent recovery after high-rate cycling. The low polarization resistance (Rp = 453.0 Ω) and high Coulombic efficiency (∼99 %) further confirm the suitability of the material for fast charge–discharge applications. This study provides a novel and scalable approach to improve LIB cathode materials using MAF-5 which offers promising potential for commercial energy storage applications.

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通过在锂离子电池正极涂覆金属-氮杂质框架-5 (MAF-5)，提高磷酸铁锂的电化学性能

开发高效稳定的正极材料是推动锂离子电池（LIB）技术发展的关键挑战。本研究提出了涂覆金属氮杂质框架-5（MAF-5）的商用磷酸铁锂（LFP）。在本研究中，对 MAF-5 进行了碳化处理（CMAF-5），并采用原位生长法进行涂层。X 射线衍射图样和红外光谱显示，在不破坏 LFP 晶体结构的情况下成功合成了 LFP/CMAF-5。电子显微镜证实，CMAF-5 涂层在 LFP 上的厚度为 1-5 nm。LFP/CMAF-5 的电化学性能测试表明，其在 0.1 C 时的特定充放电容量为 160 mAh/g，在 5 C 时的稳定容量保持率为 110 mAh/g，并且在高速循环后具有良好的恢复能力。低极化电阻（Rp = 453.0 Ω）和高库仑效率（99 %）进一步证实了该材料适用于快速充放电应用。这项研究为利用 MAF-5 改进锂离子电池阴极材料提供了一种新颖、可扩展的方法，为商业储能应用提供了广阔的前景。

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来源期刊

Inorganic Chemistry Communications 化学-无机化学与核化学

CiteScore

5.50

自引率

7.90%

发文量

1013

审稿时长

53 days

期刊介绍： Launched in January 1998, Inorganic Chemistry Communications is an international journal dedicated to the rapid publication of short communications in the major areas of inorganic, organometallic and supramolecular chemistry. Topics include synthetic and reaction chemistry, kinetics and mechanisms of reactions, bioinorganic chemistry, photochemistry and the use of metal and organometallic compounds in stoichiometric and catalytic synthesis or organic compounds.