Battery-Grade Porous Copper Foil 4.5-10μm ATOMFAIR®

$499.00

Institutional Procurement & Supply Compliance: As a verified US supplier, Atomfair accepts formal institutional Purchase Orders (POs), contract billing schedules, and custom procurement loops for university and national laboratories, and corporate R&D departments globally.

Battery-grade porous copper foil with 4.5-10 μm base thickness, 100-1000 mm width, and ≥99.8% purity (T2). Choose 5-10 μm or 10-20 μm pores for anode collectors.

Battery-Grade Porous Copper Foil

Product Type: Porous copper foil current collector

Research-grade laboratory product

Product Overview

Battery-grade porous copper foil is a copper current collector material with 4.5-10 μm base foil thickness, 100-1000 mm width and selectable pore diameter of 5-10 μm or 10-20 μm.

The porous structure is described as improving adhesion between negative electrode material and copper foil, improving wetting with slurry and electrolyte, and supporting high-rate charge-discharge behavior.

Performance Features

Copper purity is specified at ≥99.8% and listed as ≥99.9% T2.
Pore count is specified at ≥5000 pores/cm2.
Pore uniformity is specified at ≥90%.
Dyne value is specified at ≥40 and oxidation resistance is OK at 140 °C for 15 minutes.

Technical Specifications

Parameter	Specification / Available Values
Atomfair Model	AF-PCUF-4U10U
Copper purity	Specification ≥99.8%; listed ≥99.9% T2
Copper base foil thickness	4.5-10 μm
Width	100-1000 mm
Pore count	≥5000 pores/cm2
Pore diameter	5-10 μm or 10-20 μm
Pore uniformity	≥90%
Tensile strength	≥30 MPa
Elongation	≥4%
Dyne value	≥40
Oxidation resistance	OK at 140 °C for 15 minutes

Selection and Configuration

Pore diameter	5-10 μm or 10-20 μm
Width	100-1000 mm
Base foil thickness	4.5-10 μm

Quotation Confirmation: Confirm base foil thickness, width and selected pore diameter.

Specification Confirmation: Confirm pore count, pore uniformity, dyne value and oxidation-resistance requirement.

Configuration Support: Pore diameter is a quotation-critical selector because two ranges are listed.

Quotation Note: Include thickness, width, pore diameter and quantity for quotation support.

LABORATORY PROCUREMENT SUPPORT

For model selection, accessory matching, platform compatibility or configuration confirmation, contact our technical sales team.

E-MAIL: inquiry@atomfair.com

Manufacturer: Atomfair LLC

Brand: ATOMFAIR®

How does the base foil thickness range of 4.5-10 μm affect the mechanical properties of the battery-grade porous copper foil?

The tensile strength is specified as ≥30 MPa and elongation as ≥4% across the entire thickness range, ensuring consistent mechanical performance regardless of the selected base foil thickness.

What parameters must be specified when ordering the Atomfair battery-grade porous copper foil for a research application?

The base foil thickness, width, and pore diameter must be confirmed. Additionally, the foil must meet specifications of pore count ≥5000 pores/cm², pore uniformity ≥90%, dyne value ≥40, and oxidation resistance at 140°C for 15 minutes.

What is the oxidation resistance of this porous copper foil, and what does it imply for processing conditions?

The foil is oxidation-resistant at 140°C for 15 minutes, indicating it can tolerate brief exposure to elevated temperatures during drying or processing without significant oxidation, as per the stated specification.

Assessment

Battery-grade porous copper foil with ≥99.8% copper purity, high pore density (≥5000 pores/cm²), and ≥90% uniformity improves electrode adhesion and electrolyte wetting for high-rate cycling; available in 4.5-10 μm thicknesses and selectable pore diameters (5-10 or 10-20 μm), but thin foil requires careful handling and pore configuration must be specified at quotation.

Positive

High-purity copper with dense, uniform porosity: Copper purity ≥99.8% (≥99.9% T2) with pore count ≥5000 pores/cm² and uniformity ≥90% provides consistent electrical conductivity and mechanical anchoring for active material.
Enhanced adhesion and electrolyte wetting: Porous structure improves interfacial bonding between negative electrode material and foil, and promotes slurry/electrolyte penetration, supporting high-rate charge-discharge performance.

Trade-offs

Thin foil requires careful handling: Base foil thickness ranges from 4.5 to 10 μm, resulting in low mechanical robustness (≥30 MPa tensile, ≥4% elongation) that demands gentle processing to avoid tearing.
Pore diameter configuration must be specified: Pore diameter is available in two ranges (5-10 μm or 10-20 μm) and must be confirmed at quotation, meaning the product is not off-the-shelf for arbitrary pore sizes.

Quality Standards & Performance Verification

Every advanced material, component, equipment, and instrument in our catalog is backed by rigorous testing. We maintain strict internal quality management frameworks and align with CE conformity metrics to deliver transparent, reproducible performance data via our public open-science repository.

To request raw batch performance data, submit formal vendor registration paperwork, or execute a fast-turnaround R&D manufacturing loop, contact us at inquiry@atomfair.com.