Comparison of laser processability for LiFePO4 cathode material with nanosecond and femtosecond laser

IF 6.7 3区 材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY Journal of Science: Advanced Materials and Devices Pub Date : 2024-06-03 DOI:10.1016/j.jsamd.2024.100753
Jaegeun Shin , Juhee Yang , Dongkyoung Lee
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Abstract

Exploration of increased electrode surface area through laser structuring is undertaken to improve performance. While nanosecond lasers offer cost-effective processing, femtosecond lasers achieve a minimal heat effect, excelling in precision. Prior research has mainly focused on changes in electrode performance due to the duration of laser pulses, with insufficient attention to optimizing processability. This study, therefore, aims to compare the processability of active material coating layer in LFP cathodes using both nanosecond and femtosecond lasers. The specimens were subsequently analyzed morphologically for processability using scanning electron microscopy (SEM). Differences in the cross-sectional morphology of LFP cathodes processed by the two types of lasers revealed that nanosecond lasers require a higher pulse energy density for material removal.

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使用纳秒激光和飞秒激光加工阴极材料的可加工性比较
为了提高性能,我们正在探索通过激光结构增加电极表面积。纳秒激光可提供具有成本效益的加工,而飞秒激光则可将热效应降到最低,在精度方面更胜一筹。之前的研究主要关注激光脉冲持续时间对电极性能的影响,而对加工性能的优化关注不够。因此,本研究旨在比较使用纳秒激光和飞秒激光加工 LFP 阴极活性材料涂层的可加工性。随后使用扫描电子显微镜(SEM)对试样的加工性进行了形态分析。两种激光器加工的 LFP 阴极截面形态的差异表明,纳秒激光器需要更高的脉冲能量密度才能去除材料。
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来源期刊
Journal of Science: Advanced Materials and Devices
Journal of Science: Advanced Materials and Devices Materials Science-Electronic, Optical and Magnetic Materials
CiteScore
11.90
自引率
2.50%
发文量
88
审稿时长
47 days
期刊介绍: In 1985, the Journal of Science was founded as a platform for publishing national and international research papers across various disciplines, including natural sciences, technology, social sciences, and humanities. Over the years, the journal has experienced remarkable growth in terms of quality, size, and scope. Today, it encompasses a diverse range of publications dedicated to academic research. Considering the rapid expansion of materials science, we are pleased to introduce the Journal of Science: Advanced Materials and Devices. This new addition to our journal series offers researchers an exciting opportunity to publish their work on all aspects of materials science and technology within the esteemed Journal of Science. With this development, we aim to revolutionize the way research in materials science is expressed and organized, further strengthening our commitment to promoting outstanding research across various scientific and technological fields.
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