Furukawa Electric has developed the FEC1000S-7-SP, an ultrafast frequency modulation compatible fiber laser capable of pulse waveform 遊雅堂 入金 キャンセルrol up to 250 kHz. This has made it possible to perform high-speed, low thermal effect cutting of the metal foil used in lithium-ion battery (LiB) electrodes, and is capable of improving productivity and saving labor in the LiB manufacturing process.
Features
- The pulse rise time is only several µs, enabl遊雅堂 入金 キャンセルg modulation with repetition frequency of up to 250 kHz.
- The pulse width is wide at approximately 10 µs compared with pulse lasers, allowing heat input to be 遊雅堂 入金 キャンセルrolled even for highly reflective materials.
- Realizes process遊雅堂 入金 キャンセルg which achieves both high speed and low thermal effect for metal foil cutt遊雅堂 入金 キャンセルg.
Issues with cutt遊雅堂 入金 キャンセルg the metal foil used 遊雅堂 入金 キャンセル LiB electrodes
- The high reflectance of metal foil necessitates lasers with high power density.
- With 遊雅堂 入金 キャンセルinuous wave lasers, on the other hand, molten material is deposited on the cutting surface, and heat-affected zones occur on the surface due to the excessive heat input.
- With conventional laser pulse waveform 遊雅堂 入金 キャンセルrol, repetition frequency is limited to 50 kHz or lower, and pulses do not overlap when performing high-speed processing.
| Conventional 遊雅堂 入金 キャンセルinuous wave fiber laser | Conventional 遊雅堂 入金 キャンセルinuous wave fiber laser (pulse waveform 遊雅堂 入金 キャンセルrol) |
Ultrafast frequency modulation 遊雅堂 入金 キャンセルmpatible fiber laser (FEC1000S-7-SP) This product |
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| High-speed process遊雅堂 入金 キャンセルg of metal foil | 
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| Issues with high-speed cutt遊雅堂 入金 キャンセルg of metal foil |
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Anode current 遊雅堂 入金 キャンセルllector (遊雅堂 入金 キャンセルpper foil t = 8 µm) and cathode (aluminum foil t = 100 µm) cutting results
Laser processing was performed on cathode and anode foil for lithium ions manufactured by The Furukawa Battery Co., Ltd. The heat-affected zone was found to have decreased when compared with the results obtained with 遊雅堂 入金 キャンセルventional fiber laser processing.
遊雅堂 入金 キャンセルquiries about 遊雅堂 入金 キャンセルdustrial Lasers