Conductive carbon coated aluminum foil has broken the monopoly of carbon coated aluminum foil on the international market and successfully developed a high cost-effective product with performance comparable to foreign products but significantly reduced production costs. Conductive carbon coated aluminum foil uses conductive carbon black as the coating base material, specially made resin as the binder, and adopts international advanced coating equipment for simultaneous coating of both sides. The coating speed can reach 150 meters/minute, and various gap coatings can be achieved, greatly reducing production costs. Therefore, the launch of this product has accelerated the innovation of domestic technology.
Products Parameters
|
Item |
Double side coating with 1 micron thickness each side |
|
Density |
0.5 g/m2 |
|
Surface resistivity |
< 30 ohms per 25μm2 |
|
Aluminum foil purity |
> 99.9% |
|
Aluminum foil Thickness |
16 μm |
|
Coating Width |
200 mm |
|
Total Width |
260 mm |
|
Total Thickness |
18 μm |
Coating Thickness
Coating thickness is a key parameter affecting performance and requires a balance between conductivity and energy density.
| Parameter | Typical Range | Selection Recommendation |
|---|---|---|
| Single-side Coating Thickness | 1 ~ 5 μm | Select 1-2 μm for conventional applications; thicker coating (4-8 μm) for high-rate requirements |
| Areal Density | 0.5 ~ 2.0 g/m² | Lower areal density indicates more uniform coating and lower interfacial resistance |
Aluminum Foil Substrate Specifications
| Parameter | Typical Value | Description |
|---|---|---|
| Aluminum Foil Purity | > 99.9% | High purity ensures conductivity and corrosion resistance |
| Aluminum Foil Thickness | 12 ~ 30 μm | Common thickness is 15-16 μm; total thickness = Al thickness + 2× coating thickness |
| Typical Total Thickness | 18 μm (16 μm Al + 1+1 μm coating) | Common laboratory specification |
Product Evaluation Criteria
When evaluate the proudct quality, consider the following points
| Evaluation Dimension | Key Points |
|---|---|
| Coating Uniformity | In-line thickness monitoring capability, batch-to-batch consistency |
| Aluminum Foil Substrate Quality | Purity ≥99.9%, thickness tolerance control |
| Coating Adhesion | Passes peel strength testing |
| Conductivity Performance Data | Surface resistivity, contact resistance test reports |
| Production Capacity & Lead Time | Scalable manufacturing capability, supply stability |
| Customer References | Validation by major battery manufacturers |
Advantages
The application of conductive coating foil can improve the peeling force of the positive electrode sheets of lithium-ion batteries, thereby enhancing the battery cycle life, reducing the battery internal resistance, improving the battery's charging and discharging rate, and enhancing its charging and discharging ability in low-temperature environments. It can also improve the direct pass rate and assembly success rate in the battery production process, thereby significantly reducing the overall cost of battery manufacturing.
The Conductive Carbon Coated Aluminum Foil produced by our company can be processed with high-precision coating on the thinnest 6um copper foil, and the coating surface density can be controlled between 0.02g/㎡ and 5g/㎡. That is to say, we can evenly coat a minimum of 0.02g of conductive substance on the surface of 1 square meter of copper foil, with a thickness of only 200nm. The conductive coated aluminum foil is the thinnest that can be processed with advanced coating on 10um hard high-purity aluminum foil, and the coating surface density can be controlled within 0.02g/㎡ and 5g/㎡ In other words, we can uniformly coat at least 20mg of conductive material on the surface of an aluminum foil with a thickness of only 200nm per square meter. We are currently at the forefront of this technology in the world.
The coating speed on aluminum foil can also reach a stable 150m/min, while the industry average speed is only 30-40m/min. At the same time, the alignment accuracy of conductive coated copper foil can still be controlled within ± 0.3mm. In terms of coating pattern design, not only can continuous full width coating be completed, but customized production can also be carried out according to customers' special requirements, which strongly supports the product design and technological progress of downstream battery enterprises. We can theoretically coat aluminum foil with any pattern, and the alignment accuracy of front and back coating can also reach ± 0.3mm, leading the entire industry.
Test Equipment
Certificate
Application
Conductive Carbon Coated Aluminum Foil widely used in below applications:
-Lithium-ion batteries for electric vehicles and energy storage
-Lithium-ion batteries for 3C productions
-Super capacitor
-Lithium-ion super capacitor
-Soft-packing cell
-Lithium ion battery in water system
-Alkaline batteries
Company Profile
HSMetal focuses on the R&D and production of conductive and thermally conductive interface materials for new energy power battery cells, modules, and battery housings. HSMetal has invested significant human and material resources in the independent research and development of conductive materials. Our core business, the conductive series products for lithium-ion batteries, has gained widespread acceptance in the new energy and 5G fields.
We utilize primer technology to enhance electrode materials and unlock their full potential in practical applications. Our primer is an ultra-thin coating based on carbon, graphite, or carbon nanotubes, compatible with virtually any substrate. By applying this coating to electrodes, we effectively mitigate material degradation, enhancing both battery performance and safety. While pre-coating is an established method, our decade of research has refined its use to significantly boost the effectiveness of diverse battery formulations.
HSMetal's conductive coated foil is recognized as a leading solution in the global lithium-ion battery sector. We have become a strategic partner to numerous internationally renowned manufacturers of new energy vehicles and energy storage systems. The product has gained widespread market acceptance and has enabled the formation of an integrated industrial ecosystem centered around our conductive foil technology.
We are planning a development strategic growth path to create significant value in the clean energy industry.
Equipment
Carbon Coated Aluminum Foil
Carbon Coated Copper Foil
Quality Control
R&D Capability
Product Package
FAQ
Q1: What info. should I let you know if i would like to get a quotation for the Conductive Carbon Coated Aluminum Foil?
A1: Please inform us whether the battery type is lithium battery or sodium battery, as well as the coating thickness, aluminum foil thickness, coating width, and aluminum foil width. Additionally, please specify whether the adhesive used in the coating is fluorinated or non-fluorinated, and what system is used for the positive electrode, whether it is aqueous or oil-based
Q2:How long is your delivery time?
A2:Generally it is 5-10 days base on we have stock on hand. or 15-20 days if no inventory, then need check with our production team for lead time according to the quantity.
Q3: Do you provide samples ?
A3:Yes, if standard sizes sample is free but buyer need to pay freight cost.
Q4:What is your terms of payment ?
A4: Normal payment term is 30%TT, 70% before shipment get ready to ship
Q5: How do you guarantee the quality of the products?
A5: Each step of production and finished products will be carried out inspection by QC department before storing to the warehouse. NG products are not allowed in the completed goods warehouse.
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