Other metal foil made by copper and a certain proportion of the formed copper foil and foil 88 generally have 90 two, the amount of copper was 90% and 88%, the size of 16*16cm copper foil is the most extensive use of decoration materials. Such as: Gaestgiveriet Hotel, temple statues, mosaics, crafts and other tiles, a gilded signboard;
The characteristics of the product
Copper foil with low surface oxygen characteristics, can be attached with a variety of different substrates, such as metal, insulation materials, has a wide range of temperature. Mainly used in electromagnetic shielding and antistatic, conductive copper foil positioned on the substrate surface, combined with the metal substrate, with excellent conductivity, and the effect of electromagnetic shielding. Can be divided into: self-adhesive foil, copper foil, copper foil, single double guide guide etc.. Electronic grade copper foil (purity more than 99.7%, the thickness of 5um-105um) is the rapid development of electronic information industry is one of the basic material of the electronics industry, electronic grade copper foil are used more and more big, the products are widely used in industrial use calculator, communications equipment, QA equipment, lithium ion battery, TV, VCR, civilian CD player, copiers, telephones, air conditioning, automobile electronic parts, game machine etc.. The domestic and foreign market of electronic grade copper foil, especially the high performance electronic grade copper increasing demand. The relevant professional institutions predict that by 2015, China electronic grade copper domestic demand will reach 300 thousand tons, China will become the largest manufacturing world printed circuit board and copper base, especially the high performance electronic grade copper foil market.
The performance advantage of carbon coated copper foil
1. improve the battery consistency, greatly reduce the cost of batteries.
And significantly reduce the electric core dynamic resistance increase; - increase the battery pressure consistency; To extend the battery life;
2. improve the adhesive adhesion of active material and current collector, reduce manufacturing cost sheet. Such as:
And to improve the use of water system and the adhesion of the collector cathode material; Improvement of nanometer or submicron cathode materials and collector adhesion; Improvement of lithium titanate or other cathode materials of high capacity and collector adhesion;
And improve the qualified rate of the pole piece made of sheet, reduce manufacturing cost.
Carbon coated aluminum foil and foil battery electrode adhesion test chart
The use of carbon coated aluminum sheet after adhesion from 10GF to 60gf (with tape or 100 lattice Daofa) adhesion, improve.
3. reduce the polarization, improve the rate and enhance the performance of the battery capacity per gram. Such as:
And reduce the proportion of adhesive active material, improve the capacity of g; - improve the electrical contact between active material and current collector; And reduce the polarization, improve the power performance.
The cell rate performance of different aluminum foil
Where C-AL is the carbon coated aluminum foil, E-AL etching foil, U-AL light aluminum foil
4. sets of protective fluid, prolong the service life of battery. Such as:
To prevent corrosion, oxidation, collecting pole; And improve the collecting pole surface tension, extremely easy to enhance collecting coating properties; Etched foil, can replace the high cost or foil thinner instead of the original standard foil.
Cell cycle graph of different aluminum foil (200 weeks)
One (1) light aluminum foil (2) etching of aluminum foil (3) for carbon coated aluminum foil