Thin Na-B"-Alumina Electrolytes by Electrochemical Vapor Deposition (EVD) for Sodium-Sulfur Batteries

钠-β（Na-beta）-氧化铝是固体电解质膜 用于负载均衡应用的钠硫电池， 电动汽车和卫星通讯。 新方法 用于制造薄（20至50微米）Na-β-氧化铝 将采用固体电解质。 这种方法被称为 电化学气相沉积（EVD），已成功地用于 以存款氧化锆、钙钛矿和二氧化铈， 固体氧化物燃料电池 该方法包括使气体 在多孔氧化铝膜上形成Na-β-氧化铝薄膜 支持，其进一步增长发生EVD。 一种EVD反应器， 将建设 Na-β-氧化铝膜将使用 两种方法;一步法和两步法。 膜 将在微观结构、晶体 结构和导电性。

Sodium-beta (Na-beta)-alumina is the solid electrolyte membrane used in sodium-sulfur batteries with applications in load leveling, electric automobiles, and satellite communications. A novel method for the fabrication of thin (20 to 50 micrometers) Na-beta-alumina solid electrolytes will be undertaken. This method, known as electrochemical vapor deposition (EVD), has been used successfully to deposit zirconia, perovskites, and ceria for applications in solid oxide fuel cells. The method consists of reacting gaseous species to form a thin membrane of Na-beta-alumina over a porous support, further growth of which occurs by EVD. An EVD reactor will be built. Na-beta-alumina membranes will be deposited using two processes; a one step and a two step process. The membranes will be characterized with regards to microstructure, crystal structure and conductivity.