公开(公告)号：US10483550B2

公开(公告)日：2019-11-19

申请号：US15630471

申请日：2017-06-22

申请人： KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

发明人： Kyung Joong Yoon ,  Seung-Hwan Lee ,  Mansoo Park ,  Jongsup Hong ,  Hyoungchul Kim ,  Ji-Won Son ,  Jong Ho Lee ,  Byung Kook Kim ,  Hae-Weon Lee

IPC分类号： H01M4/88 ,  H01M4/90 ,  H01M8/12 ,  H01M8/1253 ,  H01M8/124

摘要： Provided is a solid oxide cell including a fuel electrode layer, electrolyte layer and an air electrode layer, wherein a diffusion barrier layer is provided between the air electrode layer and the electrolyte layer, the diffusion barrier layer includes: a first diffusion barrier layer formed on the electrolyte layer and including a sintered ceria-based metal oxide containing no sintering aid; and a second diffusion barrier layer formed on the first diffusion barrier layer and including a sintered product of a ceria-based metal oxide mixed with a sintering aid, the first diffusion barrier layer includes a sintered product of nanopowder and macropowder of a ceria-based metal oxide, and the first diffusion barrier layer and the second diffusion barrier layer are sintered at the same time. The diffusion barrier layer is densified, shows high interfacial binding force and prevents formation of a secondary phase derived from chemical reaction with the electrolyte.

公开(公告)号：US09966624B2

公开(公告)日：2018-05-08

申请号：US15346105

申请日：2016-11-08

申请人： KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

发明人： Kyung Joong Yoon ,  Seung-Hwan Lee ,  Mansoo Park ,  Jongsup Hong ,  Hyoungchul Kim ,  Ji-Won Son ,  Jong Ho Lee ,  Byung Kook Kim ,  Hae-Weon Lee

IPC分类号： H01M8/12 ,  H01M8/1253 ,  H01M8/126 ,  H01M8/124

CPC分类号： H01M8/1253 ,  C01F17/0018 ,  C01G51/006 ,  C01P2002/72 ,  C01P2004/03 ,  C01P2004/04 ,  C04B35/50 ,  C04B35/6281 ,  C04B35/62815 ,  C04B35/62823 ,  C04B35/62886 ,  C04B35/62892 ,  C04B2235/3203 ,  C04B2235/3208 ,  C04B2235/3224 ,  C04B2235/3225 ,  C04B2235/3227 ,  C04B2235/3229 ,  C04B2235/3262 ,  C04B2235/3272 ,  C04B2235/3275 ,  C04B2235/3281 ,  C04B2235/3284 ,  C04B2235/443 ,  C04B2235/5436 ,  C04B2235/5445 ,  C04B2235/5454 ,  C04B2235/785 ,  C04B2235/786 ,  C04B2235/9615 ,  H01M8/126 ,  H01M2008/1293 ,  H01M2300/0074 ,  H01M2300/0077

摘要： Provided is a method for manufacturing a sintered body for an electrolyte and an electrolyte for a fuel cell using the same. More particularly, the following disclosure relates to a method for preparing an electrolyte having a firm thin film layer by using a sintered body having controlled sintering characteristics, and application of the electrolyte to a solid oxide fuel cell. It is possible to control the sintering characteristics of a sintered body through a simple method, such as controlling the amounts of crude particles and nanoparticles. In addition, an electrode using the obtained sintered body having controlled sintering characteristics is effective for forming a firm thin film layer. Further, such an electrolyte having a firm thin film layer formed thereon inhibits combustion of fuel with oxygen when it is applied to a fuel cell, and thus shows significantly effective for improving the quality of a cell.