Copper foil strip for lithium battery
Thickness:8-20
three types: one side polished,double sides polished.
high quality
Thickness:8-20
three types: one side polished,double sides polished.
high quality
Flexible copper foil
Classification | UNIT | 9um | 12um | 18um | 35um | |||
Products width rang | mm | Max,1295 | Max,1295 | Max,1295 | Max,1295 | |||
1 | Cu | % | Min,99.8 | Min,99.8 | Min,99.8 | Min,99.8 | ||
2 | Area weight | G/m2 | 80±3 | 107±3 | 153±5 | 283±7 | ||
3 | Tensile strength | Normal temperature | Kg/m2 | Min,28.0 | Min,28.0 | Min,28.0 | Min,28.0 | |
At 180°C | Min,15.0 | Min,18.0 | Min,18.0 | Min,18.0 | ||||
4 | Elongation | Normal temperature | % | Min,5.0 | Min,5.0 | Min,6.0 | Min,8.0 | |
At 180°C | Min,6.0 | Min,8.0 | Min,8.0 | Min,8.0 | ||||
5 | Roughness | SHINY(Ra) | um | Max,0.43 | Max,0.43 | Max,0.43 | Max,0.43 | |
MATTE(Rz) | Max,2.5 | Max,2.5 | Max,2.5 | Max,2.5 | ||||
6 | Peel strength | Normal temperature | Kg/cm | Min,0.77 | Min,0.8 | Min,0.9 | Min,1.0 | |
High temperature S4(260°C/20sec.) | Min,0.36 | Min,0.36 | Min,0.4 | Min,0.5 | ||||
7 | Degraded rate of HC&(18%-1hr/25°C) | % | Max,7.0 | Max,7.0 | Max,7.0 | Max,7.0 | ||
8 | Degraded rate of KCN(10%-0.5hr/70°C) | % | Max,7.0 | Max,7.0 | Max,7.0 | Max,7.0 | ||
9 | Chang of color(E-1.0hr/200°C) | % | Good | Good | Good | Good | ||
10 | Electrical resistance | Ωg/m2 | Max,0.162 | Max,0.162 | Max,0.162 | Max,0.162 | ||
11 | Appearance (spot and copper powder) | None | None | None | None | |||
12 | PIN-HOLE | EA | Zero | Zero | Zero | Zero | ||
13 | Size tolerance | Width | mm | 0-2mm | 0-2mm | 0-2mm | 0-2mm | |
Length | mm | - | - | - | - | |||
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