公开(公告)号：EP4273303A1

公开(公告)日：2023-11-08

申请号：EP22171849.7

申请日：2022-05-05

申请人： Atotech Deutschland GmbH & Co. KG

发明人： Kühne, Sebastian ,  Laudien, Ulrich ,  Kaczmarek, Michal ,  Dziurun, Marta ,  Richter, Richard ,  Brunner, Heiko ,  Leonhard, Steven ,  Freese, Thomas

IPC分类号： C25D3/56 ,  C25D21/14 ,  C25D21/18 ,  C25D21/20

摘要： The present invention relates to a method for depositing a zinc-nickel alloy on a substrate, particularly to a method for electrolytically depositing a zinc-nickel alloy on a substrate, wherein a zinc-nickel deposition bath is utilized as a catholyte comprising at least one brightening agent, wherein the at least one brightening agent has a source which is substantially free of, preferably does not comprise, halogen anions. The present invention furthermore relates to a respective aqueous zinc-nickel deposition bath, a respective brightening agent, and a respective use of said brightening agent for replenishing in an aqueous zinc-nickel deposition bath.