Carbon Coated Aluminum Foil For Lithium Batteries

The carbon coated aluminum foil is made of a composite paste based on conductive carbon and a high purity electronic aluminum foil using a transfer coating process.
Scope of application
Power type lithium battery with fine particle active material
The positive electrode is lithium ferrous phosphate
Ternary/lithium manganate with fine particles as positive electrode
Used for supercapacitors, lithium primary batteries (lithium sulfite, lithium manganese, lithium iron, button type, etc.) instead of etching aluminum foil
effect
Suppress battery polarization, reduce thermal effects, and improve magnification performance;
Reducing the internal resistance of the battery and significantly reducing the dynamic internal resistance increase during the cycling process;
Improve consistency and increase battery cycle life;
Improve the adhesion between the active substance and the fluid collector, and reduce the manufacturing cost of the electrode sheet;
Protect the fluid collector from corrosion by the electrolyte;
Improve the high and low temperature performance of lithium iron phosphate batteries, and improve the processing performance of lithium iron phosphate and lithium titanate materials.
matters needing attention
Storage requires an environment with a temperature of 20 ± 5 ℃ and a humidity of not more than 50%. During transportation, it is necessary to avoid the erosion of aluminum foil by air and water vapor;
The corresponding coated active substance D50 should preferably not be greater than 4-5 μ m. The compaction density shall not be greater than 2.25g/cm, and the specific surface area shall be within the range of 13-18 ㎡/g.
The heat dissipation of the carbon layer is poorer than that of the aluminum foil, so it is necessary to adjust the belt speed and baking temperature appropriately when coating;
Carbon coated aluminum foil can significantly improve the comprehensive performance of lithium batteries and capacitors, but it cannot be used as a major factor to change certain aspects of battery performance, such as battery energy density, high and low temperature performance, high voltage, and so on.