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Double-Sided Composite Copper Foil Current Collector

Double-Sided Composite Copper Foil Current Collector

$1,399.00

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.

Double-sided composite copper foil current collector uses a symmetric three-layer structure with lithium battery copper foil, a 3 μm polymer functional layer and lithium battery copper foil.

SKU: AF-BM-F-CCDA-2SCU-CU2S
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Double-Sided Composite Copper Foil Current Collector

Product Type: Composite copper foil current collector
Research-grade laboratory product

Product Overview

Double-sided composite copper foil current collector uses a symmetric three-layer structure with lithium battery copper foil, a 3 μm polymer functional layer and lithium battery copper foil.

The composite foil specification includes mechanical, electrical, electrochemical, electrolyte-stability and thermal-shutdown performance parameters for battery current collector evaluation.

Performance Features
  • Structure is ≥4 μm lithium battery copper foil + 3 μm polymer functional layer + ≥4 μm lithium battery copper foil.
  • Longitudinal tensile strength is specified at ≥165 MPa and longitudinal elongation at ≥6%.
  • Surface roughness Ra is specified at 0.1-0.3 μm.
  • Surface resistance is specified at ≤0.05 ohm/sq and oxidation potential at ≥4.8 V vs Li/Li.

Technical Specifications
Parameter Specification / Available Values
Atomfair Model AF-ACCU-2SIDE
Structure ≥4 μm lithium battery copper foil + 3 μm polymer functional layer + ≥4 μm lithium battery copper foil
Longitudinal tensile strength ≥165 MPa
Longitudinal elongation ≥6%
Interlayer peel strength ≥1.2 N/mm
Thermal shrinkage 150 °C for 30 minutes: MD ≤0.9%, TD ≤0.7%
Surface roughness Ra 0.1-0.3 μm
Long-term heat resistance ≥120 °C
Volume resistivity ≤3*10 ohm.m at 25 °C
Surface resistance ≤0.05 ohm/sq
Oxidation potential ≥4.8 V vs Li/Li
Electrolyte stability 60 °C, 1 mol/L LiPF6 electrolyte immersion for 7 days; no delamination or corrosion; resistance change ≤5%
Thermal shutdown characteristic Polymer layer melts and breaks the circuit at 120-280 °C
Quotation Confirmation: Confirm double-sided copper composite structure and target thickness.
Specification Confirmation: Confirm mechanical, electrical and electrolyte-stability requirements for the selected current collector.
Configuration Support: This row represents the symmetric copper/polymer/copper structure.
Quotation Note: Include target layer thicknesses, width 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®

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.

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).

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