The both surfaces smooth copper foil boasting the high reliability, which has been adopted for BEV/HEV in many companies also adopted for consumer use including portable devices and power tools.
Feature
- Based on the fine crystal structure, it shows the excellent workability and withstands repeated expansion and contraction in charging and discharging, and achieves the long life of batteries.
- Based on the excellent heat resistance, the wrinkle occurrence in the active material coating process is suppressed and it is helpful for the improvement of the productivity.
- Thickness is uniform in both the width direction and the length direction and the thinner and the longer foil is available.
- Mass production to the thinnest 5μm is available, and it contributes to increase a battery capacity.
Typical application
- For the lithium ion secondary batteries
Specification
| Foil thickness [µm] | 5 (Manufactured in Taiwan) | 6 | 8 | 10 | 20 |
|---|---|---|---|---|---|
| Mass thickness [g/m2] | 45 | 54 | 71 | 89 | 178 |
| Tensile strength in the room temperature [MPa] | 360 | 320 | |||
| Elongation in the room temperature [%] | 3 | 7 | 10 | 12 | 20 |