Battery-Grade PET Aluminum Foil Current CollectorProduct Type: PET aluminum foil current collector
Research-grade laboratory product
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LABORATORY PROCUREMENT SUPPORT
For model selection, accessory matching, platform compatibility or configuration confirmation, contact our technical sales team.
E-MAIL: inquiry@atomfair.com
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Manufacturer: Atomfair LLC
Brand: ATOMFAIR®
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This composite foil requires controlled processing conditions to maintain structural integrity and electrical performance. Carbon coating or perforation must be applied only when specified, and the foil should not be exposed to temperatures exceeding 140°C for extended periods.
- Temperature Sensitivity: Do not subject the foil to temperatures above 140°C for longer than 20 minutes to avoid oxidation damage.
- Mechanical Handling: Ensure tensile and elongation limits are not exceeded during processing to prevent tearing or deformation.
- Surface Preparation: Maintain a dyne value of at least 36 dyn/cm to ensure proper adhesion for subsequent coatings or laminations.
- Electrical Conductivity: Verify sheet resistance is ≤15 milliohm/sq to meet current collector requirements.
- Adhesion Testing: Confirm peel resistance using 3M681 tape to ensure adequate bonding of aluminum layers.
What are the mechanical and electrical performance trade-offs between the 4.5 μm and 6 μm PET layer options in the Atomfair PET aluminum foil current collector?
The primary trade-off is between weight and mechanical robustness. The 4.5 μm PET layer yields a lower unit area mass (13±2 g/m²) but reduces tensile strength margins, while the 6 μm option increases structural integrity at the cost of slightly higher mass. Both configurations maintain the same 1 μm aluminum layers on each side, sheet resistance ≤15 milliohm/sq, and peel resistance verified with 3M681 tape.
Can this PET aluminum foil current collector be integrated directly into lithium-ion battery electrode coating lines without additional surface treatment?
Yes, the as-supplied foil has a dyne value ≥36 dyn/cm, which is sufficient for standard slurry wetting and adhesion in electrode coating processes. However, if enhanced adhesion or electrolyte wetting is required, the product supports optional carbon coating or perforation as further processing steps, which must be specified at quotation.
What are the handling and storage requirements to prevent oxidation or mechanical damage to the 1 μm aluminum layers?
The aluminum layers are thin (1 μm each) and can be damaged by creasing or scratching; handle with clean gloves and avoid sharp edges. The foil is oxidation-resistant up to 140 °C for 20 minutes, so storage in a dry, temperature-controlled environment below 40 °C is recommended to preserve surface properties and peel resistance.
Battery-grade PET aluminum foil current collector featuring a 1 µm aluminum / 4.5 or 6 µm PET / 1 µm aluminum structure with ≤15 milliohm/sq sheet resistance, MD ≥200 MPa tensile strength, and oxidation resistance at 140°C for 20 minutes; designed for laboratory battery research and development.
Positive
- Low sheet resistance with good adhesion: Sheet resistance ≤15 milliohm/sq combined with peel resistance verified by 3M681 tape ensures reliable electrical performance and layer integrity in current collector applications.
- High mechanical strength and elongation: Tensile strength MD ≥200 MPa and TD ≥180 MPa with elongation MD ≥12% and TD ≥8% provide robust handling tolerance during battery assembly and cycling.
Trade-offs
- Limited thermal tolerance: Oxidation resistance is specified only at 140°C for 20 minutes, restricting high-temperature processing or operation without PET substrate degradation.
- Thickness tolerance requires precision assessment: Thickness tolerance of ±10% necessitates verification for applications demanding uniform electrode stacking or precise electrolyte wetting control.
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).
