Carbon-coated aluminum foil refers to carbon-coated foil made of aluminum foil as a base. It has the advantages of corrosion resistance, ability to inhibit battery polarization, and low production cost. It is widely used in the manufacturing process of lithium iron phosphate power batteries.
Carbon-coated foil refers to a composite foil with a thickness of 1 μm that is coated with adhesive and conductive materials on aluminum or copper current collectors. Carbon-coated foil has the functions of enhancing coating bonding strength, reducing battery impedance, extending battery cycle life, and protecting current collectors. It is an important substrate for lithium batteries and is widely used in supercapacitors, power batteries, energy storage batteries and other fields.
According to different current collectors, carbon-coated foil can be subdivided into two categories: carbon-coated copper foil and carbon-coated aluminum foil. Carbon-coated copper foil refers to carbon-coated foil made of pure copper sheets as the base material and carbon black particles and resin mixture as the covering layer. It has the advantages of good mechanical properties, low internal resistivity, good toughness, and good conductivity. It is widely used in photovoltaic power generation, consumer electronics and other fields. However, currently, due to factors such as high technical barriers and high production costs, my country's carbon-coated copper foil market accounts for a low proportion, and traditional electrolytic copper foil still occupies the dominant position in the copper foil market. This is the main challenge facing the development of the industry.
