Advantages of carbon-coated aluminum foil in lithium battery applications
1. Suppress battery polarization, reduce thermal effects, and improve rate performance;
2. Reduce the internal resistance of the battery, and significantly reduce the dynamic internal resistance increase in the cycle process;
3. Improve consistency and increase battery cycle life;
4. Improve the adhesion between the active material and the current collector, and reduce the manufacturing cost of the pole piece;
5. Protect the current collector from being corroded by the electrolyte;
6. Improve the processing performance of lithium iron phosphate and lithium titanate materials.
Coating thickness on both sides: A type 4 ~ 6μm, B type 2 ~ 3μm.
conductive coating
Surface treatment of battery conductive substrates with functional coatings is a breakthrough technological innovation. Carbon-coated aluminum foil/copper foil is to uniformly and delicately coat the dispersed nano-conductive graphite and carbon-coated particles on the aluminum foil/copper foil. on copper foil. It can provide excellent static conductivity and collect the micro-current of the active material, which can greatly reduce the contact resistance between the positive/negative electrode material and the current collector, and can improve the adhesion between the two, which can reduce adhesion. The amount of agent used, which in turn significantly improves the overall performance of the battery. The coating is divided into two types: water-based (water-based system) and oil-based (organic solvent system).