Laser Cutting Characteristics on Uncompressed Anode for Lithium-Ion Batteries
Lithium-ion batteries are actively used for many applications due to many advantages. Although electrodes are important during laser cutting, most laser cutting studies use commercially available electrodes. Thus, effects of electrodes characteristics on laser cutting have not been effectively studi...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-05-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/13/10/2630 |
| _version_ | 1797567322204930048 |
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| author | Dongkyoung Lee Jungdon Suk |
| author_facet | Dongkyoung Lee Jungdon Suk |
| author_sort | Dongkyoung Lee |
| collection | DOAJ |
| description | Lithium-ion batteries are actively used for many applications due to many advantages. Although electrodes are important during laser cutting, most laser cutting studies use commercially available electrodes. Thus, effects of electrodes characteristics on laser cutting have not been effectively studied. Since the electrodes’ characteristics can be manipulated in the laboratory, this study uses an uncompressed anode on laser cutting for the first time. Using the lab-made anode, this study identifies laser cutting characteristics of the uncompressed anode. First, the absorption coefficients of graphite and copper in the ultraviolet, visible, and infrared range are measured. The measured absorptivity of the graphite and copper at the wavelength of 1070 nm is 88.25% and 1.92%, respectively. In addition, cutting phenomena can be categorized in five regions: excessive cutting, proper cutting, defective cutting, excessive ablation, and proper ablation. The five regions are composed of a combination of multi-physical phenomena, such as ablation of graphite, melting of copper, evaporation of copper, and explosive boiling of copper. In addition, the top width varies in the order of 10 μm and 1 μm when applying high and low volume energy, respectively. The logarithmic relationship between the melting width and the volume laser energy was found. |
| first_indexed | 2024-03-10T19:41:05Z |
| format | Article |
| id | doaj.art-e48cce9dbdf4495dacbcb6001638546c |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-10T19:41:05Z |
| publishDate | 2020-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-e48cce9dbdf4495dacbcb6001638546c2023-11-20T01:18:40ZengMDPI AGEnergies1996-10732020-05-011310263010.3390/en13102630Laser Cutting Characteristics on Uncompressed Anode for Lithium-Ion BatteriesDongkyoung Lee0Jungdon Suk1Department of Mechanical and Automotive Engineering, Kongju National University, Cheonan 31080, KoreaEnergy Materials Research Center, Advanced Materials Division, Korea Research Institute of Chemical Technology, 141 Gajeong-ro, Yuseong-gu, Daejeon 305-600, KoreaLithium-ion batteries are actively used for many applications due to many advantages. Although electrodes are important during laser cutting, most laser cutting studies use commercially available electrodes. Thus, effects of electrodes characteristics on laser cutting have not been effectively studied. Since the electrodes’ characteristics can be manipulated in the laboratory, this study uses an uncompressed anode on laser cutting for the first time. Using the lab-made anode, this study identifies laser cutting characteristics of the uncompressed anode. First, the absorption coefficients of graphite and copper in the ultraviolet, visible, and infrared range are measured. The measured absorptivity of the graphite and copper at the wavelength of 1070 nm is 88.25% and 1.92%, respectively. In addition, cutting phenomena can be categorized in five regions: excessive cutting, proper cutting, defective cutting, excessive ablation, and proper ablation. The five regions are composed of a combination of multi-physical phenomena, such as ablation of graphite, melting of copper, evaporation of copper, and explosive boiling of copper. In addition, the top width varies in the order of 10 μm and 1 μm when applying high and low volume energy, respectively. The logarithmic relationship between the melting width and the volume laser energy was found.https://www.mdpi.com/1996-1073/13/10/2630laser cuttinglithium-ion batteryabsorption coefficient measurementuncompressed anodemulti-physical phenomenalaser material interaction |
| spellingShingle | Dongkyoung Lee Jungdon Suk Laser Cutting Characteristics on Uncompressed Anode for Lithium-Ion Batteries Energies laser cutting lithium-ion battery absorption coefficient measurement uncompressed anode multi-physical phenomena laser material interaction |
| title | Laser Cutting Characteristics on Uncompressed Anode for Lithium-Ion Batteries |
| title_full | Laser Cutting Characteristics on Uncompressed Anode for Lithium-Ion Batteries |
| title_fullStr | Laser Cutting Characteristics on Uncompressed Anode for Lithium-Ion Batteries |
| title_full_unstemmed | Laser Cutting Characteristics on Uncompressed Anode for Lithium-Ion Batteries |
| title_short | Laser Cutting Characteristics on Uncompressed Anode for Lithium-Ion Batteries |
| title_sort | laser cutting characteristics on uncompressed anode for lithium ion batteries |
| topic | laser cutting lithium-ion battery absorption coefficient measurement uncompressed anode multi-physical phenomena laser material interaction |
| url | https://www.mdpi.com/1996-1073/13/10/2630 |
| work_keys_str_mv | AT dongkyounglee lasercuttingcharacteristicsonuncompressedanodeforlithiumionbatteries AT jungdonsuk lasercuttingcharacteristicsonuncompressedanodeforlithiumionbatteries |