1Introduction
Can be used in various electronic products, such as PDA, PDP, LCD display, laptop, copier, etc., where electromagnetic shielding is needed. Used to wrap the steam duct, preventing temperature loss. Non-conductive.
Copper Foil TapeUsage and Description: Replaces
painted wireAll kinds of
Transformationcensor" 或 "blockUse.
2Product Description
Purity higher than 99.95%, its function is to eliminate electromagnetic (EMI) interference, isolate the harm of electromagnetic waves to the human body, and avoid unnecessary voltage and current affecting the function. In addition, it has good effects on the discharge of static electricity after grounding. The material is polyester fiber, which is not easy to crack or damage after repeated use or multiple bends. Strong adhesive force, good conductivity, can easily be wound and fitted on the wire, and can be cut into various specifications according to customer requirements.
3用途
Aluminum foil tape is suitable for various types of transformers, mobile phones, computers, PDAs, PDPs,
LEDElectromagnetic shielding is required in various electronic products such as monitors, laptops, and copiers.
4Introduction to Several Key Products of Aluminum Foil
（一）Air Conditioning Foil
Air conditioning foil is a specialized material used to manufacture heat exchanger fins for air conditioners. Early air conditioning foil was plain foil. To improve the surface performance of plain foil, inorganic anti-corrosion coatings and hydrophilic organic coatings are applied before shaping, forming hydrophilic foil. Currently, hydrophilic foil accounts for 50% of the total air conditioning foil, and its use ratio will be further increased. In addition, there is another kind of water-repellent foil, which makes the fin surface have a water-repellent function to prevent condensation from sticking. Due to the water-repellent foil's technology for improving surface defrosting needs further research, current actual production is very limited.
The thickness of air-conditioning foil is 0.1mm～0.15mm. With the development of technology, there is a trend for air-conditioning foil to be further thinned, and the current leading products in Japan are 0.09mm thick. In an extremely thin state, aluminum foil must have good formability, with uniform structure and performance, few metallurgical defects, low anisotropy, and high strength, good ductility, uniform thickness, and good flatness. The specifications and alloys of air-conditioning foil are relatively simple, suitable for large-scale production, but its market seasonality is strong, making it difficult for specialized producers of air-conditioning foil to solve the contradiction of oversupply in peak seasons and almost no demand in off-peak seasons.
Due to the strong demand from the market, the production capacity and technical level of air-conditioning foil in our country have been continuously improving in recent years. Now, we have formed a group of enterprises that produce air-conditioning foil in large, medium, and small sizes, and high, medium, and low levels. Some large enterprises, such as North China Aluminum and Bohai Aluminum, have achieved basic international advanced levels in product quality. However, due to excess domestic production capacity, the market competition is extremely fierce.
（二）卷烟包装箔
China is the world's largest producer and consumer of cigarettes. Currently, there are 146 large-scale cigarette factories in China, with an annual output of 34 million cases. Most of them are packaged with cigarette foil, with 30% using electroplated foil and 70% using rolled aluminum foil. The consumption of rolled aluminum foil is 35,000 tons. With the strengthening of people's health awareness and the impact of imported cigarettes from abroad, the growth of cigarette foil demand has clearly slowed down, and it is expected to slightly increase in the next few years. The cigarette packaging foil in China accounts for 70% of the total amount of double-zero foil. Currently, there are only a few enterprises in the country that can produce high-quality cigarette foil, with technical levels comparable to international standards, but the overall quality of domestic cigarette foil lags behind international standards.
（三）装饰用箔
Decorative foil is an applied decorative material that uses the form of aluminum-plastic composite. It utilizes the characteristics of aluminum foil, such as good color retention and high light and heat reflection rates. It is mainly used for decoration in architecture and furniture, and also for some gift box packaging. The application of decorative foil in China's construction industry began in the 1990s. It spread rapidly from central cities such as Shanghai, Beijing, and Guangzhou to all parts of the country. In recent years, the demand has increased sharply. It is generally used as an interior decoration material for building walls and indoor furniture. It is also widely used in commercial door fronts and interior decoration.
Decorative foil has advantages such as insulation, moisture resistance, sound insulation, fire resistance, and ease of cleaning. Moreover, it has a luxurious appearance, is convenient to process, and has fast construction installation speed. At present, the construction and home decoration industries in our country have formed a surge of application for decorative foil. With the rapid development of the construction industry and the continuous popularization of the application of decorative foil in our country, the demand for decorative foil is expected to increase significantly. In addition, the use of decorative foil for gift packaging is very popular abroad, and its development speed in our country has been very fast in recent years. It is expected that there will be a significant increase in the demand for decorative foil.
5Industry Advantage
The advantages of carbon-coated aluminum foil in lithium battery applications
1. Suppress battery polarization, reduce thermal effects, and improve rate performance.
2. Reduces the internal resistance of the battery, and significantly reduces the increase in dynamic internal resistance during the cycling process;
3. Improve consistency and increase the battery's cycle life;
4. Increase the adhesion force between active materials and collectives, reduce the cost of making the electrode sheet;
5. Protect the fluid from corrosion by the electrolyte;
6. Improve the processing performance of lithium iron phosphate and lithium titanate materials.
Coating thickness on both sides: A model 4~6μm, B model 2~3μm.
Conductive Coating
Surface treatment of battery conductive substrates with functional coatings represents a breakthrough in technological innovation. Carbon-coated aluminum foil/copper foil is a process where dispersed nanoscale conductive graphite and carbon-coated particles are uniformly and finely coated onto aluminum foil/copper foil. It provides excellent static conductivity, collecting microcurrents from active materials, thereby significantly reducing the contact resistance between the positive/negative material and the collector, and enhancing the adhesion between them. This can reduce the amount of binder used, leading to a significant improvement in the overall performance of the battery. The coating is available in two types: water-based (water-based system) and oil-based (organic solvent system).
