C11000 C1100 T2 Soft Pure Copper Foil For Lithium Battery

Our Custom 0.1-3mm 99.99% C11000 C1100 T2 Soft Pure Copper Foil is a high-purity, high-performance material specifically engineered for demanding electrical and industrial applications, including lithium battery manufacturing. Manufactured from grade C11000 (equivalent to C1100 and T2), this copper foil offers exceptional electrical conductivity, excellent ductility, and superior corrosion resistance. With customizable thicknesses ranging from 0.05mm to 3mm and widths up to 600mm, it meets diverse project requirements across the electronics, aerospace, and new energy sectors.

• High Purity (≥99.99% Cu): Ensures maximum electrical and thermal conductivity, critical for battery and electronic applications.

• Multiple Tempers Available: Hard, 3/4 hard, 1/2 hard, 1/4 hard, and annealed (soft) options provide flexibility for stamping, bending, and deep drawing.

• Precision Rolled: Consistent thickness tolerance and smooth surface finish for reliable performance.

• Custom Dimensions: Thickness from 0.05mm to 3mm, width ≤600mm, and customizable lengths to suit your production needs.

• Excellent Processability: Supports bending, welding, decoiling, cutting, and punching without cracking.

Parameter	Details
Material Grade	C11000 / C1100 / T2
Purity	≥ 99.99% (Cu ≥ 99.90% actual, with 99.99% achievable on request)
Thickness Range	0.05mm – 3mm (customizable)
Width Range	≤ 600mm
Length	As required (e.g., 30mm – 1000mm or coil form)
Temper	Hard, 3/4 Hard, 1/2 Hard, 1/4 Hard, Annealed (Soft)
Electrical Conductivity (IACS)	Annealed: ≥ 100%; Hard tempers: ≥ 97%
Surface Finish	Black, peeled, polished, or customized
Standard	GB/T 467-2010 (comparable to ASTM B152)
HS Code	7410110000
Certification	ISO9001, ISO14001, ISO45001
MOQ	1 ton (flexible for large-scale projects)
Packaging	Standard export package (wooden reels or cartons)

• Lithium Battery Anode Current Collector
  The primary application. Ultra-thin (6–15μm) soft annealed copper foil serves as the negative electrode current collector in lithium-ion batteries.

• Electrical & Electronic Components
  Flexible printed circuits (FPC), electromagnetic shielding, grounding tapes, and transformer windings.

• Aerospace & Defense
  High-reliability conductive paths and shielding in avionics and military equipment.

• New Energy Vehicles (NEV/EV)
  Busbars, high-voltage connectors, and battery interconnects.

• Construction & Decoration
  Architectural cladding, roofing, and ornamental metalwork.

1. Conduction Path: During charging/discharging, electrons flow through the external circuit to/from the copper foil, which is coated with anode material (typically graphite).

2. Mechanical Support: The copper foil provides a strong yet flexible substrate for the active material, preventing cracking during volume changes.

3. Heat Dissipation: High thermal conductivity (≈400 W/m·K) helps dissipate heat generated during rapid charge/discharge cycles.

4. Corrosion Resistance: The pure copper surface resists electrolyte attack, ensuring long cycle life.