1、 The characteristics of copper foil
Simply put, the characteristic of copper foil is its low surface oxidation property, which allows it to bond with different substrates. For example, various metals or insulation materials have a relatively wide range of temperature applications.
For electronic grade copper foil, its purity is generally 99.7% or higher, and its thickness is generally in the range of 5um to 105um. It can be said that it is a fundamental material in the electronic industry. With the continuous acceleration of the development of electronic information related industries, this electronic grade copper foil has a large usage.
2、 Performance advantages of carbon coated copper foil
1. Copper foil can greatly improve the consistency of battery pack usage, thereby fundamentally reducing the battery composition cost.
2. It can greatly improve the adhesion between this active material and the current collector, thereby greatly reducing the corresponding cost of manufacturing electrode plates.
3. Copper foil can effectively reduce polarization, thereby improving the corresponding magnification and gram capacity parameters, and greatly enhancing the performance of related batteries.
4. Copper foil can effectively protect the current collector, thereby increasing the battery's lifespan.
3、 The use of copper foil
Copper foil can have good applications in electromagnetic shielding and related anti-static aspects. Placing conductive copper foil on the substrate of a sheet metal and then combining it with a metal substrate can demonstrate good conductivity. Moreover, it can also provide relevant electromagnetic shielding effects. Our common classifications include self-adhesive, double conductive, and single conductive copper foil. Not only that, this type of product has a wide range of applications in industrial calculators, related communication equipment, as well as civilian televisions and video recorders. At present, the demand for electronic grade copper foil in the world market is increasing day by day.
4、 The application scope of copper foil
Copper foil, as a conductive material for FPC/PCB, is easy to adhere to the insulation layer and receive a printed protective layer. After corrosion, it forms a circuit diagram.
Copper foil has low surface oxygen characteristics and can adhere to various substrates, such as metals, insulation materials, etc. It has a wide temperature range of use.
Mainly used for electromagnetic shielding and anti-static, conductive copper foil is placed on the substrate, combined with a metal substrate, which has excellent conductivity and provides electromagnetic shielding effect.
5、 Copper foil is classified in different ways:
1. According to thickness, it can be divided into thick copper foil (greater than 70 μ m) Regular thickness copper foil (greater than 18 μ M but less than 70 μ m) Thin copper foil (greater than 12 μ M but less than 18 μ m) Ultra thin copper foil (less than 12 μ m) .
2. According to surface conditions, it can be divided into single-sided treated copper foil (single-sided fuzz), double-sided treated copper foil (double-sided coarse), glossy treated copper foil (double-sided fuzz), double-sided glossy copper foil (double-sided gloss), and very low profile copper foil (VLP copper foil) copper foil, etc.
(1) Single sided treated copper foil (single sided fuzz): In electrolytic copper foil, the most widely produced variety is single-sided surface treated copper foil. It is not only a widely used type of electrolytic copper foil in the manufacturing of copper-clad and multi-layer boards, but also has a wide range of applications.
(2) Double sided processing copper foil (double-sided coarse): mainly used for multi-layer circuit boards with fine circuits, and its smooth surface