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전극 레이저 절단에서 전극의 두께가 절단 품질에 미치는 영향

The Effect of Thickness of Electrodes on Edge Quality in Laser Cutting of Electrodes

Journal of the Korean Society for Precision Engineering 2021;38(2):97-101.
Published online: February 1, 2021

1 국립공주대학교 대학원 미래융합공학과

2 국립공주대학교 기계자동차공학부

1 Department of Future Convergence Engineering, Graduate School, Kongju National University

2 Department of Mechanical and Automotive Engineering, Kongju National University

#E-mail: ldkkinka@kongju.ac.kr, TEL: +82-41-521-9260
• Received: September 14, 2020   • Revised: December 7, 2020   • Accepted: December 8, 2020

Copyright © The Korean Society for Precision Engineering

This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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  • Comparison of laser processability for LiFePO4 cathode material with nanosecond and femtosecond laser
    Jaegeun Shin, Juhee Yang, Dongkyoung Lee
    Journal of Science: Advanced Materials and Devices.2024; 9(3): 100753.     CrossRef

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The Effect of Thickness of Electrodes on Edge Quality in Laser Cutting of Electrodes
J. Korean Soc. Precis. Eng.. 2021;38(2):97-101.   Published online February 1, 2021
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J. Korean Soc. Precis. Eng.. 2021;38(2):97-101.   Published online February 1, 2021
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The Effect of Thickness of Electrodes on Edge Quality in Laser Cutting of Electrodes
Image Image Image Image Image
Fig. 1 The schematic of laser cutting system and electrodes for experiments
Fig. 2 Definition of kerf width and clearance width
Fig. 3 Comparison of kerf width of 51 μm-thick electrodes (E51) and 86 μm-thick electrodes (E86) at the laser power of 150 W
Fig. 4 Comparison of clearance width of 51 μm-thick electrodes (E51) and 86 μm-thick electrodes (E86) at the laser power of 150 W
Fig. 5 SEM images of (a) 51 μm-thick electrodes (E51) and (b) 86 μm-thick electrodes (E86) after laser cutting with the laser power of 150 W
The Effect of Thickness of Electrodes on Edge Quality in Laser Cutting of Electrodes
Category Information
Structure One-side sandwich
Active material LiFePO4
Binder Polyvinylidene fluoride
Conducting agent Super C65
Solution N-Methyl-2 pyrrolidone
Coating thickness of
active material
37 → 31 μm (Compressed 20%)
85 → 66 μm
(Compressed 20%)
Current collector Aluminum foil
Thickness of current
collector
20 μm
Table 1 Design of the electrodes