Performance Advantages of Carbon Coated Aluminum Foil/Copper Foil
Performance advantages of carbon-coated aluminum foil
1. Significantly improve the consistency of battery pack usage and greatly reduce the cost of battery packs. like:
· Significantly reduce the dynamic internal resistance increase of the cell;
· Improve the pressure difference consistency of the battery pack;
· Extend battery pack life;
· Dramatically reduce battery pack costs.
2. Improve the adhesion between the active material and the current collector, the material is soft, easy to process, and reduces the manufacturing cost of the pole piece. like:
Improve the adhesion of cathode materials and collectors using aqueous systems;
Improve the adhesion of nano- or sub-micron cathode materials and collectors;
Improve the adhesion of lithium titanate or other high-capacity anode materials and collectors;
· Improve the qualified rate of pole pieces and reduce the cost of pole piece manufacturing.
Improve active materials Haodian Technology
Adhesion test chart of battery pole piece between carbon-coated aluminum foil and light foil
After using the carbon-coated aluminum foil, the adhesion of the pole piece was increased from the original 10gf to 60gf (using 3M tape or a hundred grid knife method), and the adhesion was significantly improved.
3. Reduce polarization, increase rate and gram capacity, and improve battery performance.
· Increase the gram capacity by partially reducing the proportion of binder in the active material;
Improve the electrical contact between active material and current collector;
· Reduced polarization and improved power performance.
Reduce polarization Haodian Technology
Battery rate performance graph of different aluminum foils
Among them, C-AL is carbon-coated aluminum foil, E-AL is etched aluminum foil, and U-AL is light aluminum foil
4. Protect current collectors and prolong battery life. like:
· Prevent collector corrosion and oxidation;
· Improve the surface tension of the current collector and enhance the easy coating performance of the current collector;
· Can replace higher cost etched foil or replace original standard foil with thinner foil.
Protect Current Collector Good Electric Technology
Battery cycle graph of different aluminum foils (200 cycles)
Among them (1) is light aluminum foil, (2) is etched aluminum foil, (3) is carbon-coated aluminum foil