公开(公告)号：KR1020130055939A

公开(公告)日：2013-05-29

申请号：KR1020110121623

申请日：2011-11-21

Applicant: 서울대학교산학협력단 ,  연세대학교 산학협력단

Inventor： 류한일 ,  이태원 ,  황진하

IPC: H01M8/12 ,  H01M8/02

CPC classification number: H01M4/8657 ,  H01M4/8621 ,  H01M8/1253 ,  H01M8/126 ,  H01M2008/1293 ,  H01M2300/0077 ,  Y02E60/525

Abstract: PURPOSE: A solid oxide fuel cell is provided to form a thin and dense zirconia-based electrolyte on a ceria-based electrolyte membrane and to expand electrolyte region without degrading ion conductivity, thereby improving performance of the solid oxide fuel cell. CONSTITUTION: A solid oxide fuel cell(1) comprises a negative electrode(10); a first electrolyte membrane(20) on the negative electrode; a second electrolyte membrane(30) which is located on the first electrolyte membrane and is thin; and a positive electrode(40) located in the second electrolyte membrane. The thickness ratio of the second electrolyte membrane to the first electrolyte membrane is determined by average ion conductivity and ion transportability of the membranes. The ion transportability is 0.9 or more. The average ion conductivity is 90% or more of the first electrolyte membrane.

Abstract translation: 目的：提供固体氧化物燃料电池，以在二氧化铈基电解质膜上形成薄且致密的氧化锆基电解质，并且在不降低离子传导性的情况下扩展电解质区域，从而提高固体氧化物燃料电池的性能。 构成：固体氧化物燃料电池（1）包括负极（10）; 负极上的第一电解质膜（20）; 第二电解质膜（30），位于第一电解质膜上并且薄; 和位于第二电解质膜中的正电极（40）。 第二电解质膜与第一电解质膜的厚度比由膜的平均离子传导性和离子迁移性决定。 离子迁移率为0.9以上。 平均离子电导率为第一电解质膜的90％以上。