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Methods and electrolytes for electrodeposition of smooth films

United States Patent

March 17, 2015
View the Complete Patent at the US Patent & Trademark Office
Pacific Northwest National Laboratory - Visit the Technology Commercialization Program Website
Electrodeposition involving an electrolyte having a surface-smoothing additive can result in self-healing, instead of self-amplification, of initial protuberant tips that give rise to roughness and/or dendrite formation on the substrate and/or film surface. For electrodeposition of a first conductive material (C1) on a substrate from one or more reactants in an electrolyte solution, the electrolyte solution is characterized by a surface-smoothing additive containing cations of a second conductive material (C2), wherein cations of C2 have an effective electrochemical reduction potential in the solution lower than that of the reactants.
Zhang; Jiguang (Richland, WA), Xu; Wu (Richland, WA), Graff; Gordon L. (West Richland, WA), Chen; Xilin (Richland, WA), Ding; Fei (Tianjin, CN), Shao; Yuyan (Richland, WA)
Battelle Memorial Institute (Richland, WA)
13/ 495,727
June 13, 2012
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT This invention was made with Government support under Contract DE-AC0576RL01830 awarded by the U.S. Department of Energy. The Government has certain rights in the invention.