To achieve carbon neutrality, China and the world are continuously reducing the use of non-fossil energy and increasing investment in the R&D and application of clean energy. Currently, solar energy (HJT cells) and new energy vehicles (lithium batteries, hydrogen fuel cells) can utilize PVD technology to solve existing challenges. Using copper, aluminum, and nickel-chromium targets, PVD technology produces PET or PP composite copper/aluminum foils to replace traditional foils as current collectors for lithium battery anodes and cathodes. This reduces weight, increases energy density, and addresses battery safety issues.

Bipolar plates are core components of hydrogen fuel cells, accounting for 80% of the total weight and 30% of the cost, and are key factors limiting battery lifespan. Currently, metal bipolar plates made of titanium and stainless steel are gradually replacing graphite plates, becoming the mainstream in research and application. Surface treatment coatings for metal bipolar plates mainly include precious metal coatings (Au, Pt), metal carbonitrides (TiN, TiC, CrC, CrN), and amorphous carbon coatings. Precious metals offer excellent performance but are too costly. Transition metal carbonitrides have good corrosion resistance, but their conductivity needs improvement. By adjusting the sp2 and sp3 hybridization ratio in amorphous carbon coatings, both conductivity and corrosion resistance can be enhanced to meet the requirements of metal plates in PEMFCs.

To achieve carbon neutrality, China and the world are continuously reducing the use of non-fossil energy and increasing investment in the R&D and application of clean energy. Currently, solar energy (HJT cells) and new energy vehicles (lithium batteries, hydrogen fuel cells) can utilize PVD technology to solve existing challenges. Using copper, aluminum, and nickel-chromium targets, PVD technology produces PET or PP composite copper/aluminum foils to replace traditional foils as current collectors for lithium battery anodes and cathodes. This reduces weight, increases energy density, and addresses battery safety issues.

Bipolar plates are core components of hydrogen fuel cells, accounting for 80% of the total weight and 30% of the cost, and are key factors limiting battery lifespan. Currently, metal bipolar plates made of titanium and stainless steel are gradually replacing graphite plates, becoming the mainstream in research and application. Surface treatment coatings for metal bipolar plates mainly include precious metal coatings (Au, Pt), metal carbonitrides (TiN, TiC, CrC, CrN), and amorphous carbon coatings. Precious metals offer excellent performance but are too costly. Transition metal carbonitrides have good corrosion resistance, but their conductivity needs improvement. By adjusting the sp2 and sp3 hybridization ratio in amorphous carbon coatings, both conductivity and corrosion resistance can be enhanced to meet the requirements of metal plates in PEMFCs.