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No.1126 Jimei North Avenue, Software Park Phase 3, Xiamen City, China 361000

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PET Composite Copper Foil Battery Current Collector

Brand AOT
Product origin Xiamen, China
Delivery time 10-25 working days
Supply capacity 50 Sets/Month

The AOT-CCF composite copper foil combines 8μm ultra-thin PET substrate with 99.9% purity copper coating, delivering 240MPa tensile strength and 20MΩ anti-shorting resistance. Ideal for high-energy 4680 cells and solid-state batteries, it reduces thermal runaway risks by 70% vs traditional copper foils.

Product description

Product name		PET Composite Copper Foil
Testing items		Unit	Norm value	Testing standards and methods
Areal density		g/㎡	24±0.5	Sampler, balance

Width		mm	280	Steel ruler
Square resistance		MΩ	20±3	Four Probe Square Resistance Meter
Resistivity		Ω/m	≤4*10-8	Four Probe Square Resistance Meter
Plating purity		%	99.9	Metal Detector
Tensile Strength	MD	MPa	≥240	Tensile tester
	TD		≥240
Break elongation	MD	%	≥5%
	TD		≥5%
Wettability		Dyne value	≥32	Dyne pen
Antioxidant	150℃ 10min	/	No color change	Oven
	150℃ 10min		Not melt
Adhesion		/	Tape No. 681 does not fall off	3M tape
Pinholes		Number	No >500μm pinholes	Metallographic microscope
Appearance and storage conditions		The foil surface is smooth and flat; no interlayer folds; no indentation, bruises, scratches, uniform color, no corrosion, no oil stains, no black spots, smooth cut edges, and no obvious burrs. Storage temperature ≤25°C, temperature ≤65°C, avoid direct sunlight and chemical corrosion.

Exhibition

composite copper foil

AOT Lithium Battery Equipment exhibition provides exhibitors and visitors with a comprehensive platform for display, exchange, cooperation and trade. By participating in the exhibition, enterprises can understand the industry dynamics, expand market channels, enhance brand image and promote technological innovation and industrial upgrading.