Copper Foil Cu Strip For Lithium Ion Battery Materials
Lithium battery copper foil technical parameters
Item | Product nominal thickness | Test instrument and test method | |||||||||
Double-side polished/Single-side polished | Single/double rough | Double-sided roughening | |||||||||
8um | 9um | 12um | 15um | 20um | 10um | 12um | 10um | 12um | |||
Quality per unit area (g/m2) | 70-75 | 85-90 | 100-105 | 128-133 | 175-181 | 95-100 | 105-110 | 95-100 | 105-110 | Electronic balance | |
Tensile strength(kg/mm2) | Room temp. | ≥30.0 | ≥30.0 | ≥30.0 | ≥30.0 | ≥30.0 | ≥25.0 | ≥25.0 | ≥25.0 | ≥25.0 | Tensile testing machine |
Elongation % | Room Temp. | ≥5.0 | ≥5.0 | ≥5.0 | ≥6.0 | ≥8.0 | ≥2.5 | ≥2.5 | ≥3.0 | ≥3.0 | Tensile testing machine |
Roughness Rz value um | ≤3.0 | Negotiate | Roughness tester | ||||||||
Thickness um | (-0:+3) | Negotiate | Micrometer | ||||||||
Oxidation resistance (16010min) | No oxidative discolor | Constant temperature oven | |||||||||
Wide deviation mm | (-1:+1) | Tape measure | |||||||||
Appearance Quality | 1. The surface of the copper foil is smooth and flat 2. No obvious bumps, wrinkles, indentations, bruises 3. Uniform color, no oxidation, spot, corrosion, oil stain 4. Trimmed trim, no lace and copper powder | Visual inspection | |||||||||
Chemical composition | Cu content≥99.8% | ||||||||||
Environmental requirements | Compliance with ROHS directive | ||||||||||
Warranty period | 90 days in stock | ||||||||||
Storage conditions | 1. Copper foil warehouse should be kept clean and dry, relative humidity ≤ 60%, temperature ≤ 25 ° C 2. Copper foil warehouse without corrosive gases, non-corrosive chemicals and wet items | ||||||||||
