Spin Jet System for Rapid Fabrication of Multilayer Conductive Films

According to the report of the Physicist Organizations Network on May 8 (Beijing time), American scientists have recently developed an automatic system that can quickly and efficiently produce a strong, flexible and transparent multilayer conductive film that can be widely used. Lithium-ion battery and fuel cell manufacturing process. Related research will be published in the ACS Nano magazine sponsored by the American Chemical Society (ACS).

Many existing assembly methods cannot manufacture these slim multi-layered conductive films quickly, efficiently, and controllably, thereby greatly limiting the scope and prospect of its use. The new assembly technology, called spinblast layer-by-layer (SSLbL) assembly, was successfully developed by a research team led by Andrew Taylor, assistant professor of chemistry and environmental engineering at Yale University. This assembly technology saves processing time and produces multilayer conductive films with nanoscale accuracy and superior performance. Compared with previous assembly techniques, the new system is not only more efficient but also has better control over the properties of the film.

Researcher Glas Gries said: "The new technology can be used to develop functional nano-coatings. The system we developed not only saves the time it takes to assemble the film layer-by-layer, but also controls the film better. The performance.” They used this system to assemble a sample film in 54 minutes, and using the traditional assembly method—dipping layer by layer—to produce a film with the same conductivity requires 76 minutes.

In addition to reducing the assembly time, the new system also provides excellent control of the thickness and homogeneity of the resulting film. Scientists have known for a long time that thin-film coated carbon nanotubes are very important in the manufacture of sensors and electrodes, but the conductivity of thin films produced by the conventional dip-by-layer method has been uneven, and the new system can A more conductive conductive film is produced.

Researchers have used new methods to assemble ultra-thin polymer and nanotube multilayer films and use the fabricated films as electrodes for lithium-ion batteries. They said that the latest research also helped them to quickly create electrodes with nanometer-scale accuracy. Taylor said: "The scope of application of this technology will be very extensive, and it can be used to manufacture ultrahard materials, oxygen diffusion membranes, and drug carriers that are stronger than steel." (Reporters Liu Xia)

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