公开(公告)号：US11936075B2

公开(公告)日：2024-03-19

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: H01M8/0247 ,  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.

公开(公告)号：US11050066B2

公开(公告)日：2021-06-29

申请号：US16556007

申请日：2019-08-29

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY ,  INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI UNIVERSITY

Inventor： Jong Ho Lee ,  Kyung Joong Yoon ,  Sang Hyeok Lee ,  Dong Hwan Kim ,  Jong Sup Hong ,  Yong Gyun Bae

IPC: H01M8/0267 ,  H01M8/0263 ,  H01M8/2485 ,  H01M8/04014 ,  H01M8/124 ,  H01M8/12

Abstract: Disclosed is a fuel cell with improved thermal distribution in a stack including two more unit cells stacked therein. The fuel cell includes a stack including the two more unit cells and separators each having manifolds formed through four sides thereof, a first chamber having an internal space so as to receive air and fuel from the outside and to transfer the air and fuel to a second chamber and so as to receive the air and fuel discharged from the stack and to discharge the air and fuel to the outside, a second chamber having an internal space so as to receive the air and fuel from the first chamber and to transfer the air and fuel to the stack, and a connecting part connecting the first chamber to the second chamber so as to allow the air and fuel to flow to the second chamber from the first chamber.

公开(公告)号：US11050065B2

公开(公告)日：2021-06-29

申请号：US16287296

申请日：2019-02-27

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY ,  INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI UNIVERSITY

Inventor： Jong Ho Lee ,  Kyung Joong Yoon ,  Sang Hyeok Lee ,  Dong Hwan Kim ,  Jong Sup Hong ,  Yong Gyun Bae

IPC: H01M8/026 ,  H01M8/2483

Abstract: The present disclosure provides a separator for a fuel cell, including a central part with a rectangular shape, and a surrounding part disposed to surround the central part, wherein the surrounding part includes an outlet manifold positioned at a pair of edges of the central part, which are opposed each other, and an inlet manifold positioned along a side of the central part to be adjacent to another edge except for the pair of edges at which the outlet manifold is positioned, and the central part includes a plurality of guide patterns that are spaced apart from each other to guide fluids introduced through the inlet manifold toward the outlet manifold.