Fuel cell layer, fuel cell system and method for fabricating the fuel cell layer
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
H01M-008/02
H01M-008/24
H01M-002/08
H01M-008/10
H01M-004/88
출원번호
US-0731686
(2010-03-25)
등록번호
US-8900774
(2014-12-02)
발명자
/ 주소
Imura, Shinichiro
Schrooten, Jeremy
McLean, Gerard F.
Iaconis, Jean-Louis
Lagroix, Martin
출원인 / 주소
Sanyo Electric Co., Ltd.
대리인 / 주소
Schwegman Lundberg & Woessner, P.A.
인용정보
피인용 횟수 :
0인용 특허 :
5
초록▼
A fuel cell layer includes a plurality of membrane electrode assemblies disposed in a planar array arrangement and an interconnector for electrically coupling an anode catalyst layer of one of adjacent membrane electrode assemblies to a cathode catalyst layer of the other of the adjacent membrane el
A fuel cell layer includes a plurality of membrane electrode assemblies disposed in a planar array arrangement and an interconnector for electrically coupling an anode catalyst layer of one of adjacent membrane electrode assemblies to a cathode catalyst layer of the other of the adjacent membrane electrode assemblies. Each membrane electrode assembly includes an electrolyte membrane, the anode catalyst layer provided on one face of the electrolyte member and the cathode catalyst layer provided on the other face of the electrolyte membrane in such a manner that at least part of which is disposed counter to the anode catalyst layer. The interconnector is formed of at least one of a material constituting the anode catalyst layer and a material constituting the cathode catalyst layer.
대표청구항▼
1. A fuel cell layer, comprising: a plurality of membrane electrode assemblies, disposed in a planar arrangement, each membrane electrode assembly including an electrolyte membrane, an anode catalyst layer provided on one face of the electrolyte member and a cathode catalyst layer provided on the ot
1. A fuel cell layer, comprising: a plurality of membrane electrode assemblies, disposed in a planar arrangement, each membrane electrode assembly including an electrolyte membrane, an anode catalyst layer provided on one face of the electrolyte member and a cathode catalyst layer provided on the other face of the electrolyte membrane in such a manner that at least part of which is disposed counter to the anode catalyst layer;an interconnector which electrically connects the anode catalyst layer of an adjacent one of the membrane electrode assemblies to the cathode catalyst layer of another adjacent one of the membrane electrode assemblies;a first seal layer adjacent at least part of a cathode-side of the interconnect, the first seal layer contacting one face of the electrolyte membrane and disposed on only a single side of a plane of the other face of the electrolyte membrane, the first seal layer for blocking the transfer of fuel and oxidant from one catalyst layer to the other catalyst layer by way of said interconnector; anda second seal layer adjacent at least part of an anode-side of the interconnect, the second seal layer contacting one face of the electrolyte membrane and disposed on only a single side of a plane of the other face of the electrolyte membrane, the second seal layer for blocking the transfer of fuel and oxidant from one catalyst layer to the other catalyst layer by way of said interconnector;wherein the interconnector is integrally formed with the anode catalyst layer and formed of at least one material that constitutes the anode catalyst layer, the interconnector is integrally formed with the cathode catalyst layer and formed of at least one material that constitutes the cathode catalyst layer, or a combination thereof. 2. A fuel cell layer according to claim 1, wherein said plurality of membrane electrode assemblies are disposed in a planar arrangement such that the respective anode catalyst layers in each membrane electrode assembly are spaced apart from each other on the one face of the electrolyte member and the respective cathode catalyst layers in each membrane electrode assembly are spaced apart from each other on the other face thereof, wherein the electrolyte membrane has a through-hole running from the one face thereof to the other face thereof, andwherein said interconnector is provided in the through-hole. 3. A fuel cell layer according to claim 1, wherein the anode catalyst layer in the one of the adjacent membrane electrode assemblies and the cathode catalyst layer in the other of the adjacent membrane electrode assemblies overlap partially with each other as viewed planarly, and wherein said interconnector is provided in a region where the anode catalyst layer in the adjacent membrane electrode assemblies and the cathode catalyst layer in the other thereof overlap with each other. 4. A fuel cell layer according to claim 1, wherein said first or second seal layer is provided in such a manner that at least one of fine pores of a material that constitutes said interconnector, fine pores of the anode catalyst layer adjacent to one end of said interconnector and fine pores of the cathode catalyst layer adjacent to the other end of said interconnector is filled by said first or second seal layer. 5. A fuel cell layer according to claim 1, wherein said first or second seal layer is provided in such a manner as to cover a face of at least one of the anode catalyst layer and the cathode catalyst layer in a region where the face of the at least one of the anode catalyst layer and the cathode catalyst layer overlaps with said interconnector as viewed planarly. 6. A fuel cell layer according to claim 4, wherein said seal layer is provided in such a manner as to cover a side wall of the catalyst layer facing a spacing between adjacent catalyst layers. 7. A fuel cell layer according to claim 4, wherein said seal layer is provided in such a manner as to fill a space between adjacent catalyst layers. 8. A fuel cell system comprising: fuel cell layer according to claim 1;a cathode housing disposed adjacent the cathode catalyst layers; and,an anode housing disposed adjacent the anode catalyst layers. 9. A method for fabricating a fuel cell layer, the method including: forming a plurality of membrane electrode assemblies disposed in a planar arrangement in such a manner that forming a plurality of anode catalyst layers on one face of an electrolyte membrane and forming a plurality of cathode catalyst layers on the other face of the electrolyte membrane are carried out simultaneously or in random order; andforming an interconnector configured to electrically connect the anode catalyst layer in one of adjacent membrane electrode assemblies and the cathode catalyst layer in the other of adjacent membrane electrode assemblies to each other in such a manner that a material for use as the anode catalyst layer is filled into a spacing, used to separate the electrolyte membrane of the adjacent membrane electrode assemblies partially or completely, by forming the anode catalyst layer or a material for use as the cathode catalyst layer is filled into the spacing by forming the cathode catalyst layer, or forming the interconnector in such a manner that the material for use as the anode catalyst layer is filled into the spacing by forming the anode catalyst layer and the material for use as the catalyst layer is filled into the spacing by forming the cathode catalyst layer;forming a first seal layer adjacent at least part of a cathode-side of the first seal layer contacting one face of the electrolyte membrane and disposed on only a single side of a plane of the other face of the electrolyte membrane, the first seal layer for blocking the transfer of fuel and oxidant from one catalyst layer to the other catalyst layer by way of said interconnector; andforming a second seal layer adjacent at least part of an anode-side of the interconnect, the second seal layer contacting one face of the electrolyte membrane and disposed on only a single side of a plane of the other face of the electrolyte membrane, the second seal layer for blocking the transfer of fuel and oxidant from one catalyst layer to the other catalyst layer by way of said interconnector;wherein the interconnector is integrally formed with at least one of the cathode layer or anode layer. 10. A method, for fabricating a fuel cell layer, according to claim 9, wherein a first substrate on which the material for use as the anode catalyst layer is stacked is disposed in a position facing one face of the electrolyte membrane, wherein a second substrate on which the material for use as the cathode catalyst layer is stacked is disposed in a position facing the other face of the electrolyte membrane, andwherein the anode catalyst layer is formed on the one face of the electrolyte membrane and the cathode catalyst layer is formed on the other face thereof by press-bonding the first substrate and the second substrate to the electrolyte membrane, andthe interconnector is formed by filling at least one of the material for use as the anode catalyst layer and the material for use as the cathode catalyst layer into the spacing through the press-bonding. 11. A method, for manufacturing a fuel cell layer, according to claim 10, wherein at least one of the first substrate and the second substrate has a projected portion in a surface region corresponding to the spacing. 12. A method, for manufacturing a fuel cell layer, according to claim 11, wherein the projected portion is formed by stacking a seal layer forming material on a surface of the substrate.
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