Electrochemical cell bipolar plate with sealing feature
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
H01M-002/08
출원번호
US-0985633
(2004-11-11)
등록번호
US-7452623
(2008-11-18)
발명자
/ 주소
Henderson,David Earl
출원인 / 주소
Proton Energy Systems, Inc.
대리인 / 주소
Cantor Colburn LLP
인용정보
피인용 횟수 :
0인용 특허 :
15
초록▼
A bipolar plate for an electrochemical cell having a first side, a second side, and a sealing region is disclosed. The first side has a first fluid flow region bordered by a first sealing region, and the second side has a second fluid flow region bordered by a second sealing region. The first sealin
A bipolar plate for an electrochemical cell having a first side, a second side, and a sealing region is disclosed. The first side has a first fluid flow region bordered by a first sealing region, and the second side has a second fluid flow region bordered by a second sealing region. The first sealing region is composed of a mesh bonded to the first side.
대표청구항▼
What is claimed is: 1. An electrochemical cell, comprising: a first cell separator plate and a second cell separator plate; a plurality of membrane-electrode-assemblies (MEAs) between the first cell separator plate and the second cell separator plate; a plurality of flow field members alternatively
What is claimed is: 1. An electrochemical cell, comprising: a first cell separator plate and a second cell separator plate; a plurality of membrane-electrode-assemblies (MEAs) between the first cell separator plate and the second cell separator plate; a plurality of flow field members alternatively arranged in between each of said MEA's, wherein at least one of the plurality of flow field members comprises a metal bipolar plate, the bipolar plate comprising: a first side having a first fluid flow region bordered by a first sealing region, the first sealing region comprising a metal mesh securely metallurgically bonded to the first side, the mesh being made from a material configured to provide fluid flow therethrough; and a second side having a second fluid flow region bordered by a second sealing region. 2. The electrochemical cell of claim 1, wherein: the second sealing region comprises a mesh securely metallurgically bonded to the second side. 3. The electrochemical cell of claim 1, further comprising: a gasket disposed between the mesh of the first sealing region and an adjacent MEA. 4. The electrochemical cell of claim 3, wherein the second sealing region comprises a mesh bonded to the second side, and further comprising: a second gasket disposed between the mesh of the second sealing region and a second adjacent MEA. 5. An electrochemical cell, comprising: a first cell separator plate and a second cell separator plate; a plurality of membrane-electrode-assemblies (MEAs) between the first cell separator plate and the second cell separator plate; a plurality of flow field members alternatively arranged in between each of said MEA's, wherein at least one of the plurality of flow field members comprising a metal bipolar plate; a porous support plate disposed proximate at least one of the plurality of MEAs; a metal mesh disposed between the bipolar plate and an adjacent MEA, the mesh configured to define a sealing region about an active area of the bipolar plate, the mesh being made from a material configured to provide fluid flow therethrough, the mesh having a centrally arranged opening, the porous support plate disposed within the centrally arranged opening; a first gasket disposed between the bipolar plate and the mesh; and a second gasket disposed between the mesh and the MEA. 6. The electrochemical cell of claim 5, wherein: the bipolar plate comprises an unitary bipolar plate. 7. The electrochemical cell of claim 5, wherein: the bipolar plate comprises a laminated arrangement of electrically conductive layers, each layer being uniquely identifiable via distinctly different patterns of pierced-through flow channels. 8. An electrochemical cell, comprising: a first cell separator plate and a second cell separator plate; a plurality of membrane-electrode-assemblies (MEAs) between the first cell separator plate and the second cell separator plate; a plurality of flow field members alternatively arranged in between each of said MEA's, wherein at least one of the plurality of flow field members comprising a metal bipolar plate; a porous support plate disposed proximate at least one of the plurality of MEAs; a metal mesh disposed between the bipolar plate and a MEA on one side of the bipolar plate, the mesh configured to define a sealing region about an active area of the bipolar plate, the mesh being made from a material configured to provide fluid flow therethrough, the mesh having a centrally arranged opening, the porous support plate disposed within the centrally arranged opening; a first gasket disposed between the bipolar plate and the mesh; and a second gasket disposed between the mesh and the MEA. 9. The electrochemical cell of claim 8, wherein: the bipolar plate is an unitary bipolar plate. 10. The electrochemical cell of claim 8, wherein: the bipolar plate is a laminated arrangement of electrically conductive layers, each layer being uniquely identifiable via distinctly different patterns of pierced-through flow channels. 11. The electrochemical cell of claim 8, further comprising: a membrane support disposed between the bipolar plate and a MEA on one side of the bipolar plate. 12. The electrochemical cell of claim 1 wherein said bipolar plate has centrally positioned active region, and wherein said mesh extends across said active region. 13. The electrochemical cell of claim 1 wherein said mesh includes ridges and voids, and wherein a portion of said MEA is positioned within said voids. 14. The electrochemical cell of claim 5 wherein said mesh includes ridges and voids, and wherein a portion of said first gasket is positioned within said voids. 15. The electrochemical cell of claim 8 wherein said mesh includes ridges and voices, and wherein a portion of said first gasket is positioned within said voids.
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이 특허에 인용된 특허 (15)
Hinton Carlos E. ; Scortichini Carey L. ; Mussell Robert D., Bipolar plates for electrochemical cells.
Critz Kurt M. ; Leonida Andrei ; Roy Robert J., Electrically non-conductive plate structures and high pressure electrochemical cell devices employing same.
Molter Trent M. (Enfield CT) Faye David L. (East Hartford CT) Armstrong Wilford J. (Bolton CT), Electrochemical cell having crossed-ridge sealing surface.
Wilkinson David P.,CAX ; Stumper Juergen,CAX ; Campbell Stephen A.,CAX ; Davis Michael T.,CAX ; Lamont Gordon J.,CAX, Electrochemical cell with fluid distribution layer having integral sealing capability.
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