公开(公告)号：US20230170495A1

公开(公告)日：2023-06-01

申请号：US17558460

申请日：2021-12-21

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Jong Ho LEE ,  Kyung Joong YOON ,  Ji Won SON ,  Seong Kook OH ,  Sang Hyeok LEE ,  Dong Hwan KIM ,  Min Jun OH

IPC: H01M8/0228 ,  H01M8/12

CPC classification number: H01M8/0228 ,  H01M8/12 ,  H01M2008/1293

Abstract: Disclosed are a separator for fuel cells capable of minimizing the volume of a system and the use of sealants, and a stack for fuel cells, more particularly, a stack for solid oxide fuel cells, including the same. Specifically, by adding a metal sheet having a specific shape, position and size to the separator, the stress applied to the sealant can be uniformized, and thus the oxidizing agent and fuel can be separated and electrically isolated using only a piece of sealant. Therefore, the stack for fuel cells is characterized in that there is no variation in temperature, reactant concentration, power, or the like between respective unit cells, so delamination and microcracks do not occur, the volume is minimized, and the power density per unit volume is very high.