Nickel nanowire network coating to alleviate interfacial polarization for Na-beta battery applications

Nickel nanowire network coatings are designed and fabricated directly on the β″-alumina electrolyte surface to effectively alleviate polarization problem at Na/β″-alumina interface and decrease the interfacial resistance. The coatings greatly improve the wettability of the β″-alumina ceramics by molten sodium. This modification design and the soft-template-assisted synthetic method could be readily extended to any other substrate surfaces with arbitrary shape.