On November 22, 2023, Dongfulai Technology was invited to participate in the 3rd Power Battery Composite Current Collecting Conference and presented a booth. New and old customers are welcome to visit and inquire on site. We look forward to your visit.
Based on 15 years of innovative research and development experience, Dongfulai has developed a new generation of ultra-thin substrate coating machines, with a substrate thickness of 3-5 microns and a coating thickness of 200 nanometers to 1 micron. This provides a new technological path for the composite fluid collection industry and opens up a new field of vision for cost reduction and efficiency improvement.

Based on 15 years of innovative research and development experience, Jifluid Dongfu has developed a new generation of ultra-thin substrate coating machines, with substrate thickness of 3-5 microns and coating thickness of 200 nanometers to 1 micron. This provides a new technological path for the composite fluid collection industry and opens up a completely new perspective for cost reduction and efficiency improvement in the industry. It is one of the indispensable components in lithium-ion batteries. It can not only carry active substances, but also collect and output the current generated by electrode active substances, which is conducive to reducing the internal resistance of lithium-ion batteries, improving the Coulombic efficiency, cycle stability, and rate performance of batteries. At present, the positive electrode of lithium-ion batteries uses aluminum foil and the negative electrode uses copper foil.

Lithium batteries are developing towards high energy density and high safety, while lithium current collectors are developing towards thinner, microporous, high tensile strength, and high elongation. High conductivity, high stability, strong adhesion, low cost, and flexibility and thinness are the main demands of battery manufacturers for collectors. Composite collectors are a promising new type of lithium battery collector material. Composite current collector includes composite aluminum foil used for the positive electrode and composite copper foil used for the negative electrode.
Composite current collector is a composite material that uses PET/PI/PP plastic film as the base film and undergoes vacuum coating and other processes to stack copper/aluminum molecules on both sides. Compared with traditional collectors, composite collectors have advantages such as high safety, high energy density, low cost, long lifespan, and strong compatibility.

The market space for composite collectors is vast, and the domestic composite collector market is expected to exceed 29 billion yuan in 2025. By 2030, the composite copper foil market has a large replacement space of over 40 billion square meters. With the continuous technological research and development, equipment transformation, production line debugging, and trial production verification of various enterprises in recent years, it is expected that in the near future, the commercial application of composite fluid collectors is expected to begin in bulk, and the eve of the industrialization of composite fluid collectors has arrived.