WO2013172451A1 - 導電部材およびセルスタックならびに電気化学モジュール、電気化学装置 - Google Patents
導電部材およびセルスタックならびに電気化学モジュール、電気化学装置 Download PDFInfo
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- WO2013172451A1 WO2013172451A1 PCT/JP2013/063796 JP2013063796W WO2013172451A1 WO 2013172451 A1 WO2013172451 A1 WO 2013172451A1 JP 2013063796 W JP2013063796 W JP 2013063796W WO 2013172451 A1 WO2013172451 A1 WO 2013172451A1
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- conductive
- chromium oxide
- current collecting
- coating layer
- groove
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/02—Details
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/02—Details
- H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
- H01M8/0204—Non-porous and characterised by the material
- H01M8/0223—Composites
- H01M8/0228—Composites in the form of layered or coated products
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/02—Details
- H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
- H01M8/023—Porous and characterised by the material
- H01M8/0232—Metals or alloys
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/02—Details
- H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
- H01M8/023—Porous and characterised by the material
- H01M8/0241—Composites
- H01M8/0245—Composites in the form of layered or coated products
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/02—Details
- H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
- H01M8/0247—Collectors; Separators, e.g. bipolar separators; Interconnectors characterised by the form
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/10—Fuel cells with solid electrolytes
- H01M8/12—Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
- H01M8/241—Grouping of fuel cells, e.g. stacking of fuel cells with solid or matrix-supported electrolytes
- H01M8/2425—High-temperature cells with solid electrolytes
- H01M8/2428—Grouping by arranging unit cells on a surface of any form, e.g. planar or tubular
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
- H01M8/241—Grouping of fuel cells, e.g. stacking of fuel cells with solid or matrix-supported electrolytes
- H01M8/2425—High-temperature cells with solid electrolytes
- H01M8/243—Grouping of unit cells of tubular or cylindrical configuration
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/10—Fuel cells with solid electrolytes
- H01M8/12—Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte
- H01M2008/1293—Fuel cells with solid oxide electrolytes
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
Definitions
- the present invention relates to a conductive member, a cell stack, an electrochemical module, and an electrochemical device in which the surface of a conductive substrate is coated with a coating layer.
- solid oxide fuel cells that generate power at a high temperature of, for example, 600 to 1000 ° C. using a fuel gas (hydrogen-containing gas) and an oxygen-containing gas (air, etc.) as a next-generation energy have been known. ing. A cell stack in which a plurality of these fuel cells are electrically connected in series via a current collecting member is known (see, for example, Patent Document 1).
- a surface of a current collecting substrate made of an alloy containing Cr is coated with a coating layer that reduces Cr diffusion.
- the current collector substrate is cut into a predetermined shape and processed by a shearing force generated by pressing. Thereafter, the surface of the current collecting substrate is coated with a coating layer by dipping, sputtering, or the like, thereby constituting a current collecting member.
- a shearing force generated in the current collector substrate may cause a concave groove (crack) extending from the side surface of the current collector substrate toward the inside. Due to the large and deep opening of the groove, it was difficult to form a coating layer on the entire inner surface of the groove, so there was an opening based on the groove on the surface of the current collector substrate. However, the current collecting substrate is oxidized starting from the opening of the coating layer, and the heat resistance may be lowered.
- An object of the present invention is to provide a current collecting member, a cell stack, an electrochemical module, and an electrochemical device that can coat a concave groove of a conductive substrate with a coating layer.
- the conductive member of the present invention includes a conductive base made of an alloy containing Cr, and a coating layer coated on the surface of the conductive base via chromium oxide, and the conductive base is a concave extending from the surface toward the inside. It has a groove
- the cell stack of the present invention is characterized in that a plurality of electrochemical cells are electrically connected by the conductive member.
- the electrochemical module of the present invention is characterized in that the cell stack is stored in a storage container.
- the electrochemical device of the present invention is characterized in that the electrochemical module and an auxiliary machine for operating the electrochemical module are housed in an outer case.
- the inside of the groove of the conductive substrate is filled with chromium oxide, and the surface of the chromium oxide buried in the groove and the surface of the conductive substrate are covered with the coating layer.
- substrate can be covered with a coating layer, and the heat resistant fall from a ditch
- FIG. 3A is a side view of the fuel cell current collector shown in FIG. 2 as viewed from line AA
- FIG. 3B is a cross-sectional view of the fuel cell current collector shown in FIG. (A) is an enlarged cross-sectional view showing an enlarged current collecting piece of the fuel cell current collecting member shown in FIG.
- the cell stack device 1 has a solid oxide fuel cell 3.
- This fuel cell 3 has a gas flow path 12 therein, and has a pair of opposed main surfaces as a whole, a columnar conductive support 7 and one main surface of the conductive support 7.
- a power generation unit in which a fuel electrode layer 8 that is an inner electrode layer, a solid electrolyte layer 9, and an oxygen electrode layer 10 that is an outer electrode layer are arranged in this order.
- An interconnector 11 is arranged on the other main surface of the conductive support 7 to constitute a columnar (hollow flat plate) fuel cell 3.
- a plurality of these fuel cells 3 are arranged in a row, and a fuel cell current collecting member (conductive member) 4 (hereinafter simply referred to as a current collecting member 4) is disposed between adjacent fuel cells 3.
- a fuel cell current collecting member conductive member 4
- the cell stack 2 formed by electrically connecting the fuel cells 3 in series is configured.
- the fuel cell 3 and the current collecting member 4 are joined via a conductive bonding material 13, whereby a plurality of fuel cells 3 are joined via the current collecting member 4.
- the cell stack 2 is configured by electrical and mechanical joining.
- a P-type semiconductor layer (not shown) can be provided on the outer surface of the interconnector 11. By connecting the current collecting member 4 to the interconnector 11 via the P-type semiconductor layer, the contact between them becomes an ohmic contact, and the potential drop can be reduced.
- This P-type semiconductor layer may also be provided on the outer surface of the oxygen electrode layer 10.
- each fuel cell 3 constituting the cell stack 2 is fixed to the gas tank 6 with a sealing material (not shown) such as glass, so that the fuel gas in the gas tank 6 is supplied to the fuel cell 3.
- a sealing material such as glass
- a hydrogen-containing gas flows as a fuel gas inside the gas flow path 12 of the fuel cell 3 and is disposed outside the fuel cell 3, particularly between the fuel cells 3. Further, the oxygen-containing gas (air) flows through the internal space of the current collecting member 4. As a result, the fuel gas is supplied from the gas tank 6 to the fuel electrode layer 8 and the oxygen-containing gas is supplied to the oxygen electrode layer 10, thereby generating power in the fuel cell 3.
- the cell stack device 1 is configured by disposing a conductive sandwiching member 5 that can be elastically deformed so as to sandwich the cell stack 2 from both ends of the fuel cell 3 in the arrangement direction x via the current collecting member 4.
- the lower end portion of the clamping member 5 is fixed to the gas tank 6.
- the sandwiching member 5 has a flat plate portion 5a provided so as to be positioned at both ends of the cell stack 2, and a shape extending outward along the arrangement direction x of the fuel cells 3, and the cell stack 2 (fuel cell) And a current extraction part 5b for extracting a current generated by the power generation of 3).
- porous conductive ceramics such as ZrO 2 (referred to as stabilized zirconia) in which a rare earth element oxide is dissolved, Ni and / or Or it can comprise with NiO.
- the solid electrolyte layer 9 has a function as an electrolyte that bridges electrons between the electrodes, and at the same time, has to have a gas barrier property in order to prevent leakage between the fuel gas and the oxygen-containing gas. It is composed of ZrO 2 in which 3 to 15 mol% of a rare earth element (rare earth element oxide) is dissolved. In addition, as long as it has the said characteristic, you may comprise using another material etc.
- the oxygen electrode layer 10 is not particularly limited as long as it is generally used.
- the oxygen electrode layer 10 can be composed of a conductive ceramic made of a so-called ABO 3 type perovskite complex oxide.
- the oxygen electrode layer 10 needs to have gas permeability, and can have an open porosity of 20% or more, particularly 30 to 50%.
- the interconnector 11 can be made of conductive ceramics, it needs to have reduction resistance and oxidation resistance because it comes in contact with a fuel gas (hydrogen-containing gas) and an oxygen-containing gas (air, etc.).
- Lanthanum chromite (LaCrO 3 ) can be used.
- the interconnector 11 must be dense in order to prevent leakage of the fuel gas flowing through the plurality of gas flow paths 12 existing in the conductive support 7 and the oxygen-containing gas flowing outside the conductive support 7.
- the relative density is preferably 93% or more, particularly 95% or more.
- the conductive support 7 is manufactured by co-firing with the fuel electrode layer 8 or the solid electrolyte layer 9, the conductive battery 7 is electrically conductive from the iron group metal component and the specific rare earth element oxide.
- the support 7 can be configured.
- the conductive support 7 preferably has an open porosity of 30% or more, particularly 35 to 50% in order to have gas permeability, and the conductivity is 50 S / cm or more, Furthermore, it may be 300 S / cm or more and 440 S / cm or more.
- the conductive bonding material 13 joins the fuel cell 3 and the current collecting member 4 and can be formed using conductive ceramics or the like.
- the conductive ceramic one similar to that constituting the oxygen electrode layer 10 can be used.
- the bonding strength between the oxygen electrode layer 10 and the conductive bonding material 13 is high. Since it becomes high, it is preferable.
- the conductive bonding material 13 may be made of different materials having different particle diameters, or may be made of different materials having the same particle diameter. Furthermore, it may be composed of the same material having different particle diameters, or may be composed of the same material having the same particle diameter. When different particle sizes are used, it is preferable that the fine particles have a particle size of 0.1 to 0.5 ⁇ m and the coarse particles have a particle size of 1.0 to 3.0 ⁇ m. When the conductive bonding material 13 is formed with the same particle diameter, the particle diameter is preferably 0.5 to 3 ⁇ m.
- the conductive bonding material 13 by producing the conductive bonding material 13 using materials having different particle sizes, coarse particles having a large particle size improve the strength of the conductive bonding material 13, and fine particles having a small particle size are made conductive. The sinterability of the bonding material 13 can be improved.
- the 1st current collection piece 4a and the 2nd current collection piece 4b show the part joined to fuel cell 3, and these parts serve as current collection part 4f which takes out electric power with fuel cell 3. Further, a space between the first current collecting piece 4a and the second current collecting piece 4b is a space through which the oxygen-containing gas passes.
- the concave groove 15 is almost closed and opened so that the inner wall surface in the thickness direction (arrangement direction x) of the current collecting substrate 41 abuts.
- it is a planar space with a small thickness W, the inside is formed in a tapered shape, and the groove 15 is almost filled with the chromium oxide 14 and the groove 15 is almost buried with the chromium oxide 14. .
- the material constituting the coating layer 43 is not disposed in the concave groove 15 which is 20 ⁇ m or more from the side surface of the current collecting substrate 41. That is, the chromium oxide 14 is present in the groove 15 that is 20 ⁇ m or more from the side surface of the current collecting substrate 41, and the coating layer 43 covers the entire surface of the chromium oxide 14 in the recess 15 a of the groove 15. Yes.
- the inside of the current collecting board 41 from the side face of 20 ⁇ m or more means that the inside of the current collecting board 41 in the thickness direction is 20 ⁇ m or more from the straight line connecting the upper and lower side faces of the concave groove 15 of the current collecting board 41. is there.
- the concave groove 15 is provided with a depth of 5 to 30 ⁇ m (L shown in FIG. 4A) from the second surface 4h and the third surface 4i of the current collector 4f to the inside. Even if the recess 15a is closed or opened, it has a thickness of 1 to 5 ⁇ m (opening width: W shown in FIG. 4). As a result, as will be described later, chromium oxide 14 is easily filled, and the groove 15 of the current collecting substrate 41 can be covered with the coating layer 43, and the entire surface of the current collecting substrate 41 is covered with the coating layer 43 without any gaps. It becomes possible to do. Thereby, the oxidation from the ditch
- the coefficient of thermal expansion decreases in the order of the current collecting substrate 41, the chromium oxide 14, and the covering layer 43, and further, the material constituting the chromium oxide 14 is also present in the groove 15, so that the covering layer from the current collecting substrate 41 is provided. 43 peeling can be suppressed.
- a rectangular plate-shaped current collector having a thickness of 0.1 to 1 mm is formed on a lower die 19a1 of a press machine having a lower die 19a1 and an upper die 19b1.
- a substrate 41 is placed.
- the upper die 19b1 is lowered to form a slit extending in the width direction of the current collector substrate 41 as shown in FIG.
- the upper die 19b1 having a shape for forming a slit is inserted into the hole of the lower die 19a1 in which the slit portion is cut out, and the slit is formed in the current collecting substrate 41 by a shearing force.
- FIG. 5A a rectangular plate-shaped current collector having a thickness of 0.1 to 1 mm is formed on a lower die 19a1 of a press machine having a lower die 19a1 and an upper die 19b1.
- a substrate 41 is placed.
- the upper die 19b1 is lowered to form a slit extending in the width direction of the current collector substrate 41 as shown in FIG
- the side surfaces of the current collecting board 41 (the first current collecting piece 4a, the second surface 4h of the second current collecting piece 4b, and the third surface 4i) are inclined by a shearing force.
- a wedge-shaped concave groove 15 may be formed.
- the current collecting substrate 41 is heat-treated at, for example, 500 to 1000 ° C. in the atmosphere for 0.5 to 5 hours to form a layered chromium oxide 14 on the surface of the current collecting substrate 41, and as shown in FIG.
- chromium oxide 14 is deposited on the inner surface of the groove 15, and the inside of the groove 15 is filled with the chromium oxide 14. Note that the filling degree of the chromium oxide 14 in the groove 15 can be controlled by the heat treatment condition of the current collecting substrate 41.
- the dimensions of the concave grooves 15 are the same, by increasing the heat treatment temperature or lengthening the heat treatment time, chromium is diffused from the current collecting substrate 41 to the surface of the current collecting substrate 41, and a large amount of chromium oxide 14 is generated. It is possible to fill the groove 15 with the chromium oxide 14.
- groove 15 can be adjusted by adjusting the applied pressure by the lower mold
- the press pressure can be set to 1 to 100 kg / mm 2 , for example.
- the groove 15 can be removed from the surface of the groove 15 of the current collecting substrate 41 without being completely filled with the chromium oxide 14.
- the chromium oxide 14 can be formed so as to be slightly recessed. In this embodiment, the material constituting the coating layer 43 is disposed in the dent of the chromium oxide 14, and the peeling of the coating layer 43 from the current collecting substrate 41 can be suppressed. Note that the chromium oxide 14 is formed to substantially the same position as the surface of the current collecting substrate 41 by controlling the pressure applied by the lower die 19a2 and the upper die 19b2, and the heat treatment conditions, or the surface of the current collecting substrate 41. The chromium oxide 14 can also be formed so as to protrude slightly from the surface.
- the thickness of the opening is not reduced to that extent even by pressurization of the main surface of the current collecting substrate 41.
- the opening since the opening is wide, it is recessed by sputtering or the like.
- the chromium oxide 14 in the groove 15 can be covered with the covering layer 43.
- the thickness of the inner side of the groove 15 is reduced by pressing and filled with chromium oxide 14, and the opening of the groove 15 is formed by sputtering.
- the chromium oxide 14 in the groove 15 can be covered with the covering layer 43 by, for example.
- the opening of the groove 15 is narrow, the opening of the groove 15 can be covered with the coating layer 43.
- the corners of the current collecting substrate 41 can be rounded as shown in 6 (e) to (g), and a coating layer can be easily formed around the entire current collecting substrate 41. Can be formed.
- the current collecting member 4 and the fuel cell 3 are joined via a conductive joining material 13. That is, the current collecting member 4 and the fuel cell 3 are electrically and mechanically connected by the conductive bonding material 13.
- the conductive bonding material 13 is provided so as to cover the first surface 4g, the second surface 4h, and the third surface 4i of the current collector 4f, and the conductive bonding material 13 is located on the second surface 4h and the third surface 4i.
- the material 13 is provided so as to increase toward the fuel cell 3 side to be joined.
- the conductive bonding material 13 may be provided so as to completely cover the current collector 4f by covering the entire circumference of the current collector 4. In FIG. 7, the description of the coating layer 43 is omitted.
- a fuel cell module 20 shown in FIG. 8 includes a reformer 22 for reforming raw fuel such as natural gas or kerosene to generate fuel gas in order to obtain fuel gas used in the fuel cell 3. It is arranged above the cell stack 2.
- the fuel gas generated by the reformer 22 is supplied to the gas tank 6 through the gas flow pipe 23 and supplied to the gas flow path 12 provided inside the fuel battery cell 3 through the gas tank 6. .
- the oxygen-containing gas introduction member 24 provided inside the storage container 21 is disposed between the pair of cell stacks 2 juxtaposed in the gas tank 6 in FIG. 8, and the oxygen-containing gas flows into the fuel gas. Accordingly, the oxygen-containing gas is supplied to the lower end side of the fuel cell 3 so that the fuel cell 3 flows laterally from the lower end side toward the upper end side.
- the surplus fuel gas (fuel offgas) that has been discharged from the gas flow path 12 of the fuel cell 3 and was not used for power generation is burned above the upper end of the fuel cell 3, so that the temperature of the cell stack 2 is increased. Can be effectively increased, and the activation of the cell stack device 1 can be accelerated.
- the fuel gas that has not been used for power generation discharged from the gas flow path 12 of the fuel battery cell 3 is burned above the upper end of the fuel battery cell 3 to be disposed above the cell stack 2.
- the reformer 22 can be warmed. Thereby, the reforming reaction can be efficiently performed in the reformer 22.
- the fuel cell device 25 shown in FIG. 9 has a module housing chamber 29 in which the inside of an exterior case made up of a support column 26 and an exterior plate 27 is vertically divided by a partition plate 28 and the upper side thereof houses the above-described fuel cell module 20.
- the lower side is configured as an auxiliary equipment storage chamber 30 for storing auxiliary equipment for operating the fuel cell module 20.
- the auxiliary machine accommodated in the auxiliary machine storage chamber 30 is abbreviate
- the fuel cell current collecting member 4 of the cell stack device 1 has been described as the conductive member of the present invention.
- the conductive member of the present invention is not limited to the fuel cell, and has a high temperature oxidizing property. It can be used for a conductive member for an application used in an atmosphere, for example, an oxygen sensor.
- Cell stack device 2 Cell stack 3: Fuel cell 4: Current collecting member 6: Gas tank 13: Conductive bonding material 14: Chromium oxide 15: Concave groove 15a: Concave portion 15b: Crack 20: Fuel cell module 21: Storage Container 25: Fuel cell device 41: Current collecting substrate 43: Coating layer
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- General Chemical & Material Sciences (AREA)
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- Fuel Cell (AREA)
- Non-Insulated Conductors (AREA)
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- Measuring Oxygen Concentration In Cells (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Abstract
Description
2:セルスタック
3:燃料電池セル
4:集電部材
6:ガスタンク
13:導電性接合材
14:酸化クロム
15:凹溝
15a:凹部
15b:亀裂
20:燃料電池モジュール
21:収納容器
25:燃料電池装置
41:集電基板
43:被覆層
Claims (8)
- Crを含有する合金からなる導電基体と、該導電基体の表面に酸化クロムを介して被覆された被覆層とを含み、前記導電基体は表面から内部に向けて延びる凹溝を有し、該凹溝の内部に前記酸化クロムが埋まっており、前記凹溝内に埋まっている前記酸化クロムの表面が前記被覆層で被覆されていることを特徴とする導電部材。
- 前記導電基体を断面視したときに、前記導電基体の表面側に存在する凹部と、該凹部から前記導電基体の内部に向けて線状に延びる亀裂とを具備することを特徴とする請求項1に記載の導電部材。
- 前記凹部内に埋まっている前記酸化クロムは表面が凹んでおり、該凹んだ部分に前記被覆層の前記酸化クロム側の面の一部が食い込んでいることを特徴とする請求項2に記載の導電部材。
- 前記導電基体を断面視したときに、前記酸化クロムは、前記導電基体の表面側の凹部内に存在するとともに、該凹部から前記導電基体の内部に向けて線状に点在しており、前記凹部内に埋まっている前記酸化クロムは表面が凹んでおり、該凹んだ部分に前記被覆層の前記酸化クロム側の面の一部が食い込んでいることを特徴とする請求項1に記載の導電部材。
- 前記導電基体の表面から20μm以上内部の前記凹溝内には、前記被覆層を構成する材料が存在しないことを特徴とする請求項3または4に記載の導電部材。
- 複数の電気化学セルを、請求項1乃至5のうち何れかに記載の導電部材により電気的に接続してなることを特徴とするセルスタック。
- 請求項6に記載のセルスタックを、収納容器内に収納してなることを特徴とする電気化学モジュール。
- 請求項7に記載の電気化学モジュールと、該電気化学モジュールを作動させるための補機とを、外装ケース内に収納してなることを特徴とする電気化学装置。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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CN201380023722.2A CN104321917B (zh) | 2012-05-17 | 2013-05-17 | 导电部件、蓄电池组以及电化学组件、电化学装置 |
JP2014515688A JP5823032B2 (ja) | 2012-05-17 | 2013-05-17 | 導電部材およびセルスタックならびにモジュール、モジュール収容装置 |
EP13790237.5A EP2851984B1 (en) | 2012-05-17 | 2013-05-17 | Conductive member, cell stack, electrochemical module, and electrochemical device |
US14/401,535 US9786927B2 (en) | 2012-05-17 | 2013-05-17 | Conductive member, cell stack, electrochemical module, and electrochemical device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2012-113501 | 2012-05-17 | ||
JP2012113501 | 2012-05-17 |
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WO2013172451A1 true WO2013172451A1 (ja) | 2013-11-21 |
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PCT/JP2013/063796 WO2013172451A1 (ja) | 2012-05-17 | 2013-05-17 | 導電部材およびセルスタックならびに電気化学モジュール、電気化学装置 |
Country Status (6)
Country | Link |
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US (1) | US9786927B2 (ja) |
EP (1) | EP2851984B1 (ja) |
JP (4) | JP5823032B2 (ja) |
CN (1) | CN104321917B (ja) |
DE (1) | DE202013012748U1 (ja) |
WO (1) | WO2013172451A1 (ja) |
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Also Published As
Publication number | Publication date |
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JP6174643B2 (ja) | 2017-08-02 |
CN104321917A (zh) | 2015-01-28 |
DE202013012748U1 (de) | 2019-02-04 |
EP2851984A4 (en) | 2016-01-20 |
JP6383020B2 (ja) | 2018-08-29 |
US20150155571A1 (en) | 2015-06-04 |
JPWO2013172451A1 (ja) | 2016-01-12 |
JP2016012565A (ja) | 2016-01-21 |
EP2851984B1 (en) | 2019-02-13 |
US9786927B2 (en) | 2017-10-10 |
JP2017119916A (ja) | 2017-07-06 |
JP5823032B2 (ja) | 2015-11-25 |
JP2018200885A (ja) | 2018-12-20 |
EP2851984A1 (en) | 2015-03-25 |
CN104321917B (zh) | 2017-05-31 |
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