Graphite Anodes Coated Copper Foil is copper foil covered by a graphene layer. It is based on copper foil coated by carbon in single side and is used as anode electrode of Li-Ion battery.Graphene is a single-layer thin film composed of carbon atoms, which has excellent conductivity, thermal conductivity, and mechanical strength. Copper foil, as a substrate,can provide good conductivity and strength, meanwhile the coverage of graphene make it have a more better performance.
Graphite is an anisotropic heat-conducting material with excellent performance. It has excellent thermal conductivity in the horizontal direction. Applying a uniform layer of graphite on the copper foil can greatly improve the uniform thermal conductivity of copper foil. Water-based graphite conductive and thermal conductive functional coating, SD-301 is a conductive coating, and SD-302 is a thermal conductive coating.Graphite Anodes Coated Copper Foil is good Battery Substrate Material.
Product Structure and Working Method
1.Product Structure
- Copper Foil Substrate
The base material is high-purity electrolytic copper foil, typically 6-12 µm thick.
Copper provides excellent electrical conductivity and mechanical strength.
- Graphite/Carbon Coating
A thin layer of graphite or carbon-based material (e.g., graphene, carbon black) is applied to the surface of the copper foil.
The coating thickness is usually 1-3 µm and is designed to be uniform and adherent.
2.Working Method
Primer layer plays a critical role in enhancing the performance of carbon-coated copper foil (CCF) for lithium-ion battery(LIB) anodes. The primer acts as an interfacial bridge between the copper current collector and the anode active material (e.g., graphite, silicon).
Product Parameter
|
Item |
Value |
|
Place of Origin |
China |
|
Brand Name |
HSMetal |
|
Application |
Lithium battery materials |
|
Chemical Composition |
Graphite Coated on Copper Foil |
|
Width |
220+20mm |
|
Length |
As Customer Requirements |
|
Coating Method |
double side or single side |
|
Current Collector (substrate) |
Copper foil, 9um |
|
Anode Material |
Graphite |
|
Active Powder SSA (BET) |
3-5 m2/g |
|
Binder |
SBR+CMC |
|
Double sides active material density |
120g/㎡ |
|
Active Material Weight |
5.0176g |
Specifications
|
Conductive carbon coating |
Double side coating with 1-micron thickness each side |
|
Density |
0.54 g/m2 |
|
Surface resistivity |
< 30 ohms per 25μm2 |
|
Binder |
Modified acrylate adhesive (water based) |
|
Copper Foil Purity |
> 99.9% |
|
Copper Foil Thickness |
9μm |
|
Active Material Proportion in Powder |
95.70% |
|
Package for sales |
about 1.1kg/roll |
|
Coated width |
about 239mm |
|
Total Width |
280 mm |
|
Total Thickness |
11 μm |
|
Packing |
Shipped in the vacuum bag |
Key Properties
| Parameter Category | Common Specifications & Description |
|---|---|
| Substrate (Current Collector) | Copper foil, typically 9–10 μm thick. |
| Active Material | Artificial graphite or composite graphite, key to determining capacity. |
| Coating Type | Single-side coating (commonly for coin half-cell testing) and double-side coating (closer to commercial full-cell design). |
| Typical Total Thickness | Single-side coating: approx. 50 μm; double-side coating: approx. 90 μm (including copper foil). |
| Binder System | Oil-based (hydrophobic): typically PVDF, suitable for non-aqueous electrolytes. Water-based: typically SBR+CMC, environmentally friendly with good adhesion; currently the mainstream process. |
| Specific Capacity | Typically between 300–330 mAh/g. |
Advantages
The application of Graphite Anodes Coated Copper Foil can improve the peeling force of the positive and negative 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 Graphite Anodes Coated Copper 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 Graphite Anodes Coated Copper Foil could
Improved Battery Performance: Enhances energy density, cycle life, and rate capability.
Cost-Effective: Extends battery life, reducing long-term costs.
Versatility: Compatible with various anode materials, including graphite and silicon.
The coating speed on copper 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
Applications
Graphite anodes coated copper foil is widely used in lithium-ion batteries, particularly in the following areas:
- Electric Vehicles (EVs)
Enhances the energy density and cycle life of EV batteries.
- Consumer Electronics
Used in smartphones, laptops, and tablets to improve battery performance and longevity.
- Energy Storage Systems (ESS)
Provides stable and efficient performance for grid-scale and residential energy storage.
- High-Energy-Density Batteries
Ideal for silicon-based anodes, as it helps accommodate volume expansion during charge/discharge cycles.
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
Quality Control
Product Package
FAQ
Q: What info. should I let you know if i would like to get a quotation for the the Electrolytic copper foil?
A: The material size (Thickness*Width*Length and total Qty). If possible, it would be more better to advise the application of the product
Then we can recommend the most suitable products with details for confirmation.
Q: How long of the delivery time?
A: Usually, the shipment can be delivery within 15-30days after the order confirmed.
Q: How about the payment items?
A: LC, T/T, PayPal, Western Union etc.
Q: Which country have you exported to?
A: Our main market is South America, Middle East, Africa and Europe. And have built long time relationship with Pakistan, US, Norway, Germany, Korea, Russia,Taiwan customers.And got continue orders from them every month.
Q: Can i visit your factory?
A: Sure! Welcome in any time.
Q: How about the MOQ?
A: Normally we dont have MOQ requirement, We always expect more opportunities with you. But for some special material or special size let's communicate the actual status.
Q: Can you support us in the applications?
A: It is our pleasure!
Q: Can you accept the inspection from a third party?
A: Yes. We have enough experience to cooperate with the inspection project.
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