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

用于钠硫电池的电化学气相沉积 (EVD) 薄 Na-B"-氧化铝电解质

• 批准号: 9260173
• 负责人: Jan-Fong Jue
• 金额: $ 4.99万
• 依托单位: MATERIALS & SYSTEMS RESEARCH INC
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1993
• 资助国家: 美国
• 起止时间: 1993-01-15 至 1993-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9260173&HistoricalAwards=false
• 关键词: Thin; Na; Alumina; Electrolytes; Electrochemical

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.

钠-β (Na-β)-氧化铝是钠硫电池中使用的固体电解质膜，可应用于负载均衡、电动汽车和卫星通信等领域。 将采用一种制造薄（20至50微米）Na-β-氧化铝固体电解质的新方法。 这种方法被称为电化学气相沉积（EVD），已成功用于沉积氧化锆、钙钛矿和二氧化铈，用于固体氧化物燃料电池。 该方法包括使气态物质发生反应，在多孔载体上形成 Na-β-氧化铝薄膜，并通过 EVD 进一步生长。 将建造一座EVD反应堆。 Na-β-氧化铝膜将使用两种工艺进行沉积；一步和两步过程。 膜将在微观结构、晶体结构和电导率方面进行表征。