What are the critical factors affecting the lithium battery copper foil market?

Lithium battery copper foil not only acts as the carrier of the negative electrode active material in the lithium battery, but also acts as the collector and transporter of the negative electrode electron flow. Therefore, the tensile strength, elongation, compactness, surface roughness, thickness uniformity and appearance quality of copper foil It has a great influence on the production process of the negative electrode of the lithium battery and the electrochemical performance of the lithium battery. As an indispensable raw material for power lithium batteries, the demand for copper foil for lithium batteries continues to increase under the outbreak of the new energy vehicle market. The important factors affecting the lithium battery copper foil market include the overall lithium battery market capacity and the trend of thinning and thinning of copper foil: the trend of thinning and thinning of copper foil has led to a decrease in the number of copper foils required per unit of lithium battery capacity, but will accelerate the global new energy The speed of the auto market's release, and the unit price will also increase due to technological progress. At present, my country's lithium battery copper foil is mainly 8μm. In order to increase the energy density of lithium batteries, thinner 6μm copper foil has become the center of gravity of the domestic mainstream lithium battery copper foil processing companies. However, 6μm copper foil is difficult to process in batches, and there are only a few in China. Several companies can realize their batch processing. With the gradual maturity of the industrialization technology of 6μm copper foil and the gradual improvement of battery companies' use technology, the use of 6μm lithium copper foil will gradually increase. The thickness of copper foil equipped with new energy vehicles is 8-12μm, and the weight of the copper foil of the whole vehicle reaches more than 10kg. The smaller the thickness of the lithium battery copper foil, the lighter the weight of the battery. At the same time, thinner lithium copper foil also means smaller resistance, and the performance of the battery will also be improved. Therefore, reducing the quality of copper foil on the battery, reducing the cost of copper foil raw materials, and supplying higher energy density at the same time become the key to copper foil for power lithium batteries. In the future, the use of lighter and thinner copper foil for lithium batteries is a general trend. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete.