电纺丝富锂Li1.2Ni0.32Co0.04Mn0.44O2多孔纳米纤维作为高性能锂离子电池正极材料

IF 2.7 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Letters Pub Date : 2025-03-13 DOI:10.1016/j.matlet.2025.138391

Yifei Song, Shuang Yu, Fang Liu, Hongqiang Wang, Jiao Li

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引用次数: 0

摘要

通过静电纺丝和后续退火工艺制备了多孔Li1.2Ni0.32Co0.04Mn0.44O2纳米纤维（LNCM-F），并将其作为锂离子电池的正极材料。这种具有互联网络的多孔结构提供了更多的电化学活性位点，缩短了电子/离子的传递距离，从而促进了充电/放电过程中电子/离子的快速传递。此外，多孔网络优异的结构稳定性显著有助于减轻循环时的体积变化。因此，LNCM-F阴极在0.5 C下循环100次后可提供146 mAh g−1的高放电容量。

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Electrospun lithium-rich Li1.2Ni0.32Co0.04Mn0.44O2 porous nanofibers as high-performance cathode materials for lithium-ion batteries

Porous Li_1.2Ni_0.32Co_0.04Mn_0.44O₂ nanofibers (LNCM-F) were prepared via electrospinning and subsequent annealing process, and then employed as a cathode material for lithium-ion batteries. This porous architecture with interconnected networks offers more electrochemical active sites and shortens electron/ion transfer distance, thus facilitating rapid electron/ion transport during the charge/discharge process. Furthermore, the excellent structural stability of the porous networks significantly contributes to the alleviation of volume change upon cycling. Consequently, LNCM-F cathode delivers a high discharge capacity of 146 mAh g⁻¹ at 0.5 C after 100 cycles.

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来源期刊

Materials Letters 工程技术-材料科学：综合

CiteScore

5.60

自引率

3.30%

发文量

1948

审稿时长

50 days

期刊介绍： Materials Letters has an open access mirror journal Materials Letters: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review. Materials Letters is dedicated to publishing novel, cutting edge reports of broad interest to the materials community. The journal provides a forum for materials scientists and engineers, physicists, and chemists to rapidly communicate on the most important topics in the field of materials. Contributions include, but are not limited to, a variety of topics such as: • Materials - Metals and alloys, amorphous solids, ceramics, composites, polymers, semiconductors • Applications - Structural, opto-electronic, magnetic, medical, MEMS, sensors, smart • Characterization - Analytical, microscopy, scanning probes, nanoscopic, optical, electrical, magnetic, acoustic, spectroscopic, diffraction • Novel Materials - Micro and nanostructures (nanowires, nanotubes, nanoparticles), nanocomposites, thin films, superlattices, quantum dots. • Processing - Crystal growth, thin film processing, sol-gel processing, mechanical processing, assembly, nanocrystalline processing. • Properties - Mechanical, magnetic, optical, electrical, ferroelectric, thermal, interfacial, transport, thermodynamic • Synthesis - Quenching, solid state, solidification, solution synthesis, vapor deposition, high pressure, explosive