EP0357025A1
Expired / Lapsed
EP
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Fuel cell
Assignee: JFE Engineering Corp
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Filing: 1989-08-30
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Granted: —
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Expires: 2009-08-30
Abstract
Abstract A fuel cell comprises at least two cell members (10), each of which has a flat-plate solid electrolyte (7) having a fuel electrode layer (8) on one surface thereof and an air electrode (9) layer on the other surface thereof, separators (1), each of which is arranged between the cell members and comprises frame materials (2) and metallic sheets having concave portions (5) and convex portions (4) and being coupled to the frame materials, a fuel supply path (14) for supplying fuel and an air supply path (15) for supplying air, a fuel discharge path (16) for discharging fuel and an air exhaust path (17) for exhausting air and collector members mounted on the outer sides of the separators of the highest and lowest stags. Further, another fuel cell comprises at least two cell members(28),each of which has a flat-plate solid electrolyte layer (25) on one surface thereof and an air electrode layer (27) on the other surface thereof, metallic separators (24), each of which is arranged between the cell members and comprises a wave-form member (21), an upper flat-plate member (22) and a lower flat-plate member (23), the wave-form member being put between the upper flat-plate member and the lower flat-plate member, a hole (37) made in the upper flat-plate member for supplying fuel to the fuel electrode layer and a hole (39) made in the lower flat-plate member for supplying air to the air cell member layer and a fuel supply path (36) for supplying fuel and an air supply path (38) for supplying air.
Inventors
- 👤 Yoshio C/O Patent License Department Sato
- 👤 Hirotaka C/O Patent License Department Nakagawa
- 👤 Hiroshi C/O Patent License Department Mihara
- 👤 Shigeyoshi C/O Patent License Department Kosuge
- 👤 Hiroshi C/O Patent License Department Tsuneizumi
- 👤 Eiji C/O Patent License Department Morishige
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 05:14
CPC Classifications
H; H01; H01M; H01M8/00; H01M8/02; H01M8/0202; H01M8/0247; H01M8/0254; H01M8/0204; H01M8/0206; H01M8/0215; H01M8/0223; H01M8/0228; H01M8/0271; H01M8/24; H01M8/241; H01M8/2425; H01M8/2432; H01M8/2457; H01M8/2465; H01M8/2483; H01M8/10; H01M8/12; H01M2008/1293; H01M2300/00; H01M2300/0017; H01M2300/0065; H01M2300/0068; H01M2300/0071; H01M2300/0074; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/50
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
211 words
A fuel cell comprising: at least two cell members (10), each of which has a flat-plate solid electrolyte (7) having a fuel electrode layer(8) on one surface thereof and an air electrode layer (9) on the other surface thereof; characterized by separators (1), each of which is arranged between the cell members to stack up the cell members in layers and comprises frame materials (2) and metallic sheets having concave portion (5) and convex portion (4) and being coupled to said frame materials, a separator of the highest stage being mounted on a cell member of the highest stage and a separator of the lowest stage being mounted on a cell member of the lowest stage; a fuel supply path (14) for supplying fuel to a space between the separator and the fuel electrode and an air supply path (15) for supplying air to a space between the separator and the air electrode; a fuel discharge path (16) for discharging fuel from a space between the separator and the air electrode and an air exhaust path (17) for exhausting air from a space between the separator and the air electrode; and collector members (11) of electrical conductivity mounted on the outer sides of the separators of the highest and lowest stages.
Claim 2
Dependent Claim
211 words
A fuel cell comprising: at least two cell members (10), each of which has a flat-plate solid electrolyte (7) having a fuel electrode layer(8) on one surface thereof and an air electrode layer (9) on the other surface thereof; characterized by separators (1), each of which is arranged between the cell members to stack up the cell members in layers and comprises frame materials (2) and metallic sheets having concave portion (5) and convex portion (4) and being coupled to said frame materials, a separator of the highest stage being mounted on a cell member of the highest stage and a separator of the lowest stage being mounted on a cell member of the lowest stage; a fuel supply path (14) for supplying fuel to a space between the separator and the fuel electrode and an air supply path (15) for supplying air to a space between the separator and the air electrode; a fuel discharge path (16) for discharging fuel from a space between the separator and the air electrode and an air exhaust path (17) for exhausting air from a space between the separator and the air electrode; and collector members (11) of electrical conductivity mounted on the outer sides of the separators of the highest and lowest stages.
Claim 3
Dependent Claim
59 words
The fuel cell of claim 1, characterized in that said concave portion and said convex portion of said separator have a depth large enough for the lowest point of the concave portion to contact the upper surface of the cell member and for the highest point of the convex portion to contact the lower surface of the cell member.
Claim 4
Dependent Claim
22 words
The fuel cell of claim 1, characterized in that said separator has a coated layer of ceramic material on the surface thereof.
Claim 5
Dependent Claim
252 words
The fuel cell comprising: at least two cell members (28), each of which has a flat-plate solid electrolyte (26) having a fuel electrode layer (25) on one surface thereof and an air electrode layer (27) on the other surface thereof; characterized by metallic separators (24), each of which is arranged between the cell members to stack up the electrode members in layers and comprises a wave-form member (21), an upper flat-plate member (22) and a lower flat-plate member (23), said wave-form member being put between the upper flat-plate member and the lower flat-plate member, a separator of the highest stage being mounted on a cell member of the highest stage and a separator of the lowest stage being mounted on a cell member of the lowest stage; a hole (37) made in the upper flat-plate member for supplying fuel to the fuel electrode layer and a hole (39) made in the lower flat-plate member for supplying air to the air cell member layer; and a fuel supply path (36) for supplying fuel to a space between the upper flat-plate member and the wave-form member and an air supply path (38) for supplying air to a space between the lower flat-plate member and the wave-form member, said fuel being supplied from the fuel supply path to the fuel electrode layer through the hole made in the upper flat-plate member and said air being supplied from the air supply path to the air electrode layer through the hole made in the lower flat-plate member.
Claim 6
Dependent Claim
252 words
The fuel cell comprising: at least two cell members (28), each of which has a flat-plate solid electrolyte (26) having a fuel electrode layer (25) on one surface thereof and an air electrode layer (27) on the other surface thereof; characterized by metallic separators (24), each of which is arranged between the cell members to stack up the electrode members in layers and comprises a wave-form member (21), an upper flat-plate member (22) and a lower flat-plate member (23), said wave-form member being put between the upper flat-plate member and the lower flat-plate member, a separator of the highest stage being mounted on a cell member of the highest stage and a separator of the lowest stage being mounted on a cell member of the lowest stage; a hole (37) made in the upper flat-plate member for supplying fuel to the fuel electrode layer and a hole (39) made in the lower flat-plate member for supplying air to the air cell member layer; and a fuel supply path (36) for supplying fuel to a space between the upper flat-plate member and the wave-form member and an air supply path (38) for supplying air to a space between the lower flat-plate member and the wave-form member, said fuel being supplied from the fuel supply path to the fuel electrode layer through the hole made in the upper flat-plate member and said air being supplied from the air supply path to the air electrode layer through the hole made in the lower flat-plate member.
Claim 7
Dependent Claim
26 words
The fuel cell of claim 4, characterized in that said wave-form member is one selected from the group of deck-plate type, corrugated type and keystone type.
Claim 8
Dependent Claim
52 words
The fuel cell of claim 4, characterized in that said air supply path is a path passing through the upper flat-plate member, lower flat-plate member, wave-form member, spacer arranged between the wave-form member and the lower flat-plate member and the spacer arranged between the upper flat-plate member and the lower flat-plate member.
Claim 9
Dependent Claim
52 words
The fuel cell of claim 4, characterized in that said fuel supply path is a path passing through the upper flat-plate member, lower flat-plate member, wave-form member, spacer arranged between the wave-form member and the upper flat-plate member and the spacer arranged between the upper flat-plate member and the lower flat-plate member.
Claim 10
Dependent Claim
37 words
The fuel cell of claim 4, characterized by further comprises an air supply manifold (30) for supplying air to the air supply path and a fuel supply manifold (31) for supplying fuel to the fuel supply path.
References Cited (Backward Citations)
US3300344A
Cited
FR1534093A
Cited
CH490742A
Cited
US4510213A
Cited
US4753857A
Cited
WO1986006762A1
Cited
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