Copper Foil 9-210μm High-Temp Oxidation-Resistant ATOMFAIR®

$529.00

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.

Research-grade battery copper foil with 9-210 μm stock thickness, ≥99.95% measured purity, and 180 °C/30 min oxidation resistance. Order now.

Ultra-Thin High-Temperature Oxidation-Resistant Single-Shiny Copper Foil

Product Type: Battery copper foil current collector

Research-grade laboratory product

Product Overview

Ultra-thin high-temperature oxidation-resistant copper foil is supplied as a single-shiny copper current collector material with stock thicknesses from 9 to 210 μm and slit width support.

The foil combines ultra-thin performance, high-temperature oxidation resistance, good elongation and coating suitability for battery material preparation and current collector evaluation.

Performance Features

Rough side can be processed with low-roughness or high-roughening treatment.
Measured copper purity is at least 99.95% against a specification of at least 99.8%.
Measured tensile strength is 35 kg/m2 with room-temperature elongation of 4.2%.
Oxidation resistance is marked OK after 180 °C for 30 minutes.

Technical Specifications

Parameter	Specification / Available Values
Atomfair Model	AF-CUHTE-9U210U
Purity	Specification ≥99.8%; measured ≥99.95%
Available thickness	9, 12, 18, 22, 35, 70, 105, 140, 175 and 210 μm
Basis weight examples	9 μm: 80-85 g/m2 specification, measured 85 g/m2; 18 μm: 145-155 g/m2 specification, measured 150 g/m2
Tensile strength	Specification ≥30 kg/m2; measured 35 kg/m2
Room-temperature elongation	Specification ≥3.0%; measured 4.2%
Shiny side roughness Ra	Specification ≤0.4 μm; measured 0.24 μm
Rough side roughness Rz	Specification ≤3.0 μm; measured 1.5-1.9 μm
Oxidation resistance	OK at 180 °C for 30 minutes

Selection and Configuration

Thickness selection	Stock thicknesses: 9, 12, 18, 22, 35, 70, 105, 140, 175 and 210 μm
Width handling	Width can be slit to order
Roughness option	Low-roughness or high-roughening rough-side treatment

Quotation Confirmation: Confirm required thickness and slit width for the selected copper foil.

Specification Confirmation: Confirm rough-side treatment, shiny-side roughness and oxidation-resistance requirement.

Configuration Support: Thickness and width are quotation-critical because the foil is supplied in multiple stocked gauges.

Quotation Note: Include thickness, width, roughness preference 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®

This ultra-thin copper foil is intended for use as a battery current collector and requires precise handling and processing to preserve its mechanical and surface properties. The foil's performance depends on maintaining specified roughness, thickness, and oxidation resistance during electrode fabrication.

Surface Roughness Constraint: The shiny side roughness must be maintained at Ra ≤0.4 μm and the rough side roughness at Rz ≤3.0 μm to ensure proper adhesion and electrical performance.
Thermal Exposure Constraint: The foil is oxidation-resistant up to 180°C for 30 minutes; exceeding this temperature or duration may compromise surface integrity.
Mechanical Handling Constraint: The ultra-thin gauge (9–210 μm) requires careful handling to avoid creasing, tearing, or deformation during slitting and coating.
Processing Configuration Constraint: The rough side treatment (low-roughness or high-roughening) must be specified and confirmed prior to coating to match electrode requirements.
Thickness and Width Selection Constraint: Thickness must be selected from stock gauges and width slit to order, requiring confirmation before use to ensure compatibility with downstream processes.

FAQ

What is the oxidation resistance specification for this ultra-thin battery copper foil?

The foil is rated OK for oxidation resistance at 180 °C for 30 minutes. This is a key performance parameter for high-temperature battery processing steps such as electrode drying or calendering.

What thicknesses are available for this single-shiny copper foil and how does thickness relate to basis weight?

Stock thicknesses range from 9 to 210 μm in 10 increments: 9, 12, 18, 22, 35, 70, 105, 140, 175, and 210 μm. For example, 9 μm foil has a basis weight of 80–85 g/m² (measured 85 g/m²), while 18 μm foil has 145–155 g/m² (measured 150 g/m²).

What are the roughness specifications for the shiny and rough sides of this copper foil current collector?

The shiny side has a specified Ra ≤0.4 μm (measured 0.24 μm). The rough side has a specified Rz ≤3.0 μm (measured 1.5–1.9 μm) and can be supplied with either low-roughness or high-roughening treatment to suit different coating adhesion requirements.

Assessment

This 9 μm ultra-thin copper foil for battery current collector evaluation exhibits ≥99.95% purity, 35 kg/m² tensile strength, 4.2% room-temperature elongation, and oxidation resistance verified at 180°C for 30 minutes, with low shiny-side roughness (Ra 0.24 μm) and controlled rough-side roughness (Rz 1.5–1.9 μm).

Positive

Ultra-thin high-purity conductor: 9 μm thickness with measured copper purity ≥99.95% minimizes electrical resistance and parasitic weight in battery electrode architectures, meeting the demands of high-energy-density cell designs.
Verified high-temperature oxidation resistance: The foil withstands 180°C for 30 minutes without visible oxidation, enabling compatibility with drying and vacuum-annealing steps common in lab-scale battery electrode processing.

Trade-offs

Time-limited thermal tolerance: Oxidation resistance is validated only for 30 minutes at 180°C; prolonged or higher-temperature exposure may compromise surface quality and require additional inert-atmosphere handling.

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.

Shipping & Returns

Item is dispatched under the Atomfair Shipping & Delivery Framework (Free worldwide shipping on orders over $59 USD excl. heavy equipment). Return is governed by the Atomfair Return & Refund Policy (7-day technical return window).