Skip to content
Custom battery lines. Training before shipment.Get a Solution

Materials / grade-specific review

Carbon-Coated Aluminium Foil

Aluminium foil with a 1–2 g/m² conductive carbon layer — lower contact resistance and better adhesion for thick or aqueous electrodes.

APPLICATION & GRADE

Lithium-ionSodium-ion

Grade / designation: SZ-M1-CC03

Grade and specification to be confirmed

Discuss Material Requirements ↗

Typical applications

High-loading LFP cathodes
Aqueous cathode processing
High-voltage cells with HF exposure
Thick electrodes above 3 mAh/cm²

Grade & supply review

Thickness from 6 to 20 μm and slit width
Temper, roughness and wetting tension
Carbon coating weight per side
Roll, sheet or punched disc supply

Representative image. Actual material appearance varies by grade and lot — request a current photograph or sample.

01 / OVERVIEW

About this material

A one-micron carbon layer does three things at once: it raises surface energy so the slurry wets and bonds, it drops the contact resistance between coating and foil, and it shields the aluminium from HF attack in high-voltage cells.

The layer is thin enough not to affect energy density but thick enough to matter for adhesion. It is the standard choice for LFP cells with high loading, for aqueous cathode processing where bare aluminium wets poorly, and for any electrode above 3 mAh/cm².

04 / QUALITY & HANDLING

Documentation, controls and care

Quality controls

  • Certificate of analysis per batch
  • Moisture by Karl Fischer, reported per lot
  • Trace metal screening
  • Retained samples held for 12 months

Handling & storage

  • Store in a dry environment below 30 °C, away from direct sunlight.
  • Equilibrate to room temperature before opening to avoid condensation on the material.
  • Dry at 60–80 °C under vacuum before use where the process requires it.

Grades on this page are references used to describe capability; they are not a fixed product list.
Specification values are typical windows compiled from public technical references and supplier
datasheets, and are provided for selection guidance only. The specification delivered against your
order is agreed in writing, and measured values are confirmed on the batch certificate of analysis.
Materials listed here may be hazardous; they must be handled by qualified personnel under applicable
regulations.

Material specifications

Specification limits and test conditions — subject to confirmation
Base foil1060 or 1235 aluminium
Base thickness12 / 14 / 16 μm
Carbon coating1–2 g/m² per side
Surface resistance≤3 Ω/□
Coating adhesionNo delamination after 100 bends
Wetting tension≥38 dyn/cm
Total thickness14–19 μm
Width100–300 mm, slit to order
Coating sidesSingle or double, on request
StandardBattery grade, oil-free

Grade & packaging options

Custom particle size or purity windows
Pilot and production quantities
Technical review call with our materials team

Supply boundaries

Reference grade, not a fixed catalogue item. Capacity, particle size, coating, purity and packaging are set to the specification your process needs — the delivered grade may differ from the values shown here.

Packaging & handling

Laboratory pack | 5 m / 25 m roll, 100 mm wide
Pilot pack | 100 m roll
Production pack | 500 m+ roll on core

Information for material review

Cell chemistry, format and voltage window
Target capacity, areal loading or formulation
Process route — NMP/PVDF, aqueous, or dry
Quantity per lot, packing and delivery schedule

Training in China

Training at our China facility is available for this product. Scope, schedule and language are agreed for each project.

Related products

LET’S REVIEW YOUR MATERIAL REQUIREMENTS

Discuss your material specification.

Share the intended use, required grade, quantity and supporting documents you need to review.

support@szotech.com
Please contact us by email to discuss your project. support@szotech.com