WO2003050904A1 - Separateur de metaux destine a une pile a combustible et procede de production correspondant - Google Patents
Separateur de metaux destine a une pile a combustible et procede de production correspondant Download PDFInfo
- Publication number
- WO2003050904A1 WO2003050904A1 PCT/JP2002/011007 JP0211007W WO03050904A1 WO 2003050904 A1 WO2003050904 A1 WO 2003050904A1 JP 0211007 W JP0211007 W JP 0211007W WO 03050904 A1 WO03050904 A1 WO 03050904A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- fuel cell
- conductive
- base material
- metal separator
- conductive inclusions
- Prior art date
Links
Classifications
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/54—Ferrous alloys, e.g. steel alloys containing chromium with nickel with boron
-
- 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
- H01M8/0206—Metals or alloys
-
- 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
- H01M2008/1095—Fuel cells with polymeric electrolytes
-
- 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
- H01M8/0206—Metals or alloys
- H01M8/0208—Alloys
- H01M8/021—Alloys based on iron
-
- 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
-
- 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
- H01M8/0258—Collectors; Separators, e.g. bipolar separators; Interconnectors characterised by the configuration of channels, e.g. by the flow field of the reactant or coolant
- H01M8/0263—Collectors; Separators, e.g. bipolar separators; Interconnectors characterised by the configuration of channels, e.g. by the flow field of the reactant or coolant having meandering or serpentine paths
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12354—Nonplanar, uniform-thickness material having symmetrical channel shape or reverse fold [e.g., making acute angle, etc.]
Definitions
- the present invention relates to a metal separator provided in a polymer electrolyte fuel cell and a method for producing the same.
- a polymer electrolyte fuel cell consists of a unitary structure in which separators are stacked on both sides of a plate-shaped electrode structure (MEA: Membrane Electrode Assembly), and is composed of multiple units. Are stacked to form a fuel cell stack.
- the electrode structure has a three-layer structure in which an electrolyte membrane made of ion exchange resin or the like is interposed between a pair of gas diffusion electrodes constituting a positive electrode (force source) and a negative electrode (anode).
- the gas diffusion electrode has a gas diffusion layer formed outside the electrode catalyst layer in contact with the electrolyte membrane.
- the separator is laminated so as to be in contact with the gas diffusion electrode of the electrode structure, and a gas flow path and a refrigerant flow path for flowing gas between the gas diffusion electrode and the gas diffusion electrode are formed.
- a fuel cell for example, hydrogen gas, which is a fuel, flows through the gas flow path facing the gas diffusion electrode on the negative electrode side, and oxygen or air flows through the gas flow path facing the gas diffusion electrode on the positive electrode side.
- hydrogen gas which is a fuel
- oxygen or air flows through the gas flow path facing the gas diffusion electrode on the positive electrode side.
- the separator needs to have a function of supplying electrons generated by the catalytic reaction of the hydrogen gas on the negative electrode side to an external circuit, while supplying electrons from the external circuit to the positive electrode side. For this reason, conductive materials made of graphite materials and metal materials are used in separators.Metal materials, in particular, have excellent mechanical strength and are made lighter and more compact by making them thinner. It is considered advantageous in that it is possible.
- a stainless steel thin plate having non-metallic conductive inclusions forming conductive paths protruding from the surface is preferably used. As a method of manufacturing such a separator, a process of projecting conductive inclusions on the surface of stainless steel having conductive inclusions in the metal structure is performed to obtain a separator material plate.
- a material plate is formed into a concave-convex cross-sectional shape by press molding, and grooves formed on the front and back surfaces are changed from the gas flow path to the refrigerant flow path.
- a treatment for projecting the conductive inclusions for example, means for removing the surface of the base material by chemical etching, electrolytic etching, sandblasting, or the like is employed.
- FIG. 1A schematically shows a surface of a separation material plate obtained by performing the above-described process of projecting conductive inclusions.
- reference numeral 10 denotes a base material
- 20 denotes a conductive inclusion.
- the conductive inclusions 20 protruding from the surface of the base material 10 sink into the base material 10 as shown in FIG. 1B.
- a gap 30 may be generated at the interface between the surface of the base material 10 and the conductive inclusion 20.
- this gap 30 occurs, pitting or crevice corrosion originating from the gap 30 occurs along with the power generation of the fuel cell, and the conductive inclusions fall off. As a result, the contact resistance to the electrode structure increases. As a result, the power generation performance is reduced. Disclosure of the invention
- the conductive inclusions are prevented from dropping due to the gap generated at the interface between the base material and the conductive inclusions by press molding or the like, whereby the contact resistance is reduced and the power generation performance is improved. It is an object of the present invention to provide a metal separator for a fuel cell and a method of manufacturing the same.
- the present invention relates to a metal separator for a fuel cell, wherein a conductive layer is formed on a surface of a base material, and a chemical layer forming treatment for promoting a volume expansion of the base material is performed on the surface of the base material. It is characterized by satisfying 0.16 ⁇ R / r ⁇ 0.8, where R is the average circle equivalent diameter of, and r is the average circle equivalent diameter of the crystal grains of the base material.
- the conductive inclusions protruding from the surface are surrounded by the base material that has undergone volume expansion due to the chemical layer forming process, and are further held by the base material by receiving compressive stress. ing.
- the conductive inclusions are held between the individual crystal grains of the base material, and in the present invention, the average circle-equivalent diameter r of the crystal grains of the base material is expressed by the following equation: It is relatively larger than the circle equivalent diameter R and is set in the range of 0.16 ⁇ RZ r ⁇ 0.8. By setting this range, the conductive inclusions are sandwiched between the crystal grains while reliably receiving the compressive stress from the base material. Is effectively suppressed. By suppressing the falling of the conductive inclusions, the conductive paths of the conductive inclusions function effectively and prevent the occurrence of pitting corrosion. As a result, the contact resistance is reduced and the power generation performance is greatly improved. Significant improvement is achieved.
- the conductive inclusion As a method for controlling the ratio of the average circle equivalent diameter r of the crystal grains of the base material to the average circle equivalent diameter R of the conductive inclusion to be in the range of 0.16 ⁇ R / r ⁇ 0.8, there is a method of controlling the conductive inclusion.
- the particle size of the conductive inclusions can also be changed by heat-treating the material of the separator.
- the particle size of the conductive inclusions can be adjusted by changing the temperature and time of the material of the separator within the temperature range in which the conductive inclusions precipitate.
- the conductive inclusions are classified into a crystallization type and a precipitation type depending on a difference in composition. In any case, the present invention assumes that the conductive inclusions are sandwiched and held by the base material.
- the separation of the present invention includes those formed by press molding.
- the chemical layer forming process may be performed at any timing after the press molding or before the press molding.
- a passivation process is preferable. Due to this passivation treatment, the base material undergoes volume expansion due to the formation of oxides. Specific examples of the passivation treatment include immersion in an acidic bath.
- a stainless steel sheet having conductive inclusions forming conductive paths protruding from the surface is preferably used. Specifically, for example, a stainless steel sheet having the following composition is preferably used. . That is, C: 0.15 wt% or less, Si: 0.
- B is MB and MB type boride, M 23 (C, B) 6
- borides are deposited on the surface as mold borides, and these borides are conductive inclusions.
- the present invention provides a method for manufacturing a metal separator for a fuel cell, in which a separator material plate in which conductive inclusions protrude from the surface is press-formed, wherein a volume expansion of the base material is performed on the surface of the separator material plate. It is characterized by performing a chemical layer forming process that promotes.
- the chemical layer forming treatment according to the present invention may be performed after press-forming the separation plate, or may be performed before press-forming. After press molding, a gap is formed at the interface between the base material and the conductive inclusions as described above. However, if the chemical layer forming treatment is performed after press molding, the gap is filled by the volume expansion of the base material. By eliminating the gap, pitting or crevice corrosion starting from the gap does not occur, and the conductive inclusions are less likely to fall off.
- Figure 2 illustrates the principle. In other words, FIG. 2A shows a state in which the conductive inclusions 20 are sunk into the base material 10 due to the press forming, and a gap 30 is formed at the interface between the two. After that, the chemical layer forming process is performed.
- the gap 30 is filled as shown in FIG. 2B.
- the volume-expanded portion 1 OA must be destroyed, making it difficult for the conductive inclusions 20 to fall off.
- the chemical layer forming treatment on the surface of the separation material plate is performed as described above.
- the conductive inclusions can be prevented from falling off, and as a result, the contact resistance to the electrode structure is reduced and the power generation performance is improved.
- a passivation treatment is preferable.
- This passivation causes the base material to expand in volume due to the formation of oxides.
- Specific examples of the passivation treatment include immersion in an acidic bath.
- FIG. 1 is a cross-sectional view schematically showing a separator material plate having conductive inclusions protruding from the surface thereof
- FIG. 1B is a cross-sectional view schematically showing a separator material plate after press forming
- FIG. 2 is a diagram showing the principle in the case of applying the present invention after press molding, in the order of A and B.
- FIG. 3 is a diagram showing the principle in the case of applying the present invention before press molding in the order of A and B.
- FIG. 4 is a graph showing the falling rate of conductive inclusions measured in the examples.
- FIG. 5 is a plan photograph of a separation plate manufactured in the example of the present invention.
- FIG. 6 is a graph showing the results of the contact resistance measured in the examples.
- a 0.2-mm-thick austenitic stainless steel sheet having the components shown in Table 1 was obtained by rolling, and a required number of 100-Om x 100-mm test pieces were cut out of this material.
- test pieces were annealed under the 27 annealing conditions (temperature and time) shown in Table 2.
- B in the component precipitates in the metal structure as ⁇ ' ⁇ and MB type borides, (C, ⁇ ), and type borides, and these borides are deposited on the surface of the separator. It is a conductive inclusion that forms a conductive path.
- the particle size of the conductive inclusions is controlled by the annealing conditions.
- abrasive grains 0.3 mm alumina grains, manufactured by Fuji Seisakusho Co., Ltd .: Fuji Random WA # 300
- the conductive inclusions were protruded from both sides by applying a sand-plasting process.
- each test piece was immersed in a 50 wt% nitric acid solution bath maintained at 50 for 10 minutes to perform passivation treatment (chemical substance layer formation treatment) to expand the volume of the base material surface. I let it. Thus, test pieces Nos. 1 to 27 were obtained.
- the average equivalent circle diameter R of the conductive inclusions and the average equivalent circle diameter r of the crystal grains of the base metal were determined as follows.
- the test piece was embedded in a resin, and the cross section was polished with # 1000 water-resistant abrasive paper, followed by puff polishing to obtain a mirror surface.
- Etching was performed using glycerin aqua regia (the ratio of concentrated nitric acid 1, concentrated hydrochloric acid 3, and glycerin 6 by weight). Thereafter, the etched surface was photographed with a metallurgical microscope at a magnification of 400 times, and the areas of all conductive inclusions and all crystal grains in the visual field were measured by an image analyzer, and the average equivalent circle diameter R And r were determined.
- the average equivalent diameter is obtained from the following equation.
- Average circle equivalent diameter J ⁇ Average area of particle
- the surfaces of the test pieces Nos. 1 to 27 were imaged with a metallographic microscope at a magnification of 400 times, and from the obtained photographs, the shedding rate of the conductive objects was determined as follows.
- the number a of conductive inclusions protruding from the base material and the number b of holes formed by the conductive inclusions falling out of the base material were measured until a + b became 1 000.
- the values were applied to the following equation to determine the rate of dropout of conductive inclusions.
- Table 2 shows the obtained dropout rates
- Fig. 4 shows a graph.
- the above-mentioned R value r is 0.16 to 0.8. o. It can be seen that the drop-out rate of conductive inclusions in the test specimens from 9 to 19 is remarkably low, while the drop-out rate becomes significantly higher if the range deviates from this range. Therefore, it was demonstrated that by controlling the value of R r within the range of 0.16 to 0.8, the dropout of the conductive inclusions can be suppressed.
- An austenitic stainless steel sheet having the components shown in Table 3 and having a thickness of 0.2 mm was cut into a square shape of 10 mm x 100 mm.
- B is precipitated in the metal structure as ML'B and MB-type borides, and (C, B) "-type borides. It is a conductive inclusion that forms a conductive path on the surface.
- sand blasting was performed on the surface of this stainless steel plate, and conductive inclusions protruded from the surface.
- alumina particles WA # 300
- the abrasive grains were sprayed with a force of 2 kg Z crrr 'for 10 seconds.
- a sandblasted stainless steel plate was press-formed to obtain a 92 mm ⁇ 92 mm square separator plate.
- Fig. 5 shows this separator plate, which has a current collector with an uneven cross section in the middle and a flat edge around it.
- the separation plate was immersed in a 50 wt% nitric acid solution bath maintained at 50 ° C for 10 minutes to perform passivation treatment, and then washed with water to separate the separation plate of the example. Got the evening.
- one fuel cell unit was formed by stacking separators on both sides of an electrode structure (MEA), and this unit was allowed to generate power.
- the contact resistance of Separation was measured. The results are shown in Table 4, and the change in contact resistance with the passage of power generation time is graphed in FIG.
- the contact resistance value of the example was kept constant in the initial stage despite the long-term power generation.
- the contact resistance of the comparative example was significantly increased up to 1000 hours after power generation.
- a gap remains at the interface between the base material and the conductive inclusions at the contact surface with the electrode structure, which causes pitting and crevice corrosion during power generation. It is presumed that the contact resistance increased due to dropping of the conductive inclusions.
- the contact resistance of the example was constant, and thus it can be said that the operation effect of the passivation treatment of the present invention was demonstrated.
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- Life Sciences & Earth Sciences (AREA)
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Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/497,540 US7838171B2 (en) | 2001-12-12 | 2002-10-23 | Metal separator for fuel cell and its production method |
CA002469805A CA2469805C (en) | 2001-12-12 | 2002-10-23 | Metal separator for fuel cell and its production method |
DE10297495T DE10297495B4 (de) | 2001-12-12 | 2002-10-23 | Herstellungsverfahren für einen Metallseparator einer Brennstoffzelle |
US12/907,673 US20110033783A1 (en) | 2001-12-12 | 2010-10-19 | Metal separator for fuel cell and its production method |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2001-378230 | 2001-12-12 | ||
JP2001378230A JP3913053B2 (ja) | 2001-12-12 | 2001-12-12 | 燃料電池用金属製セパレータの製造方法 |
JP2002073785A JP4535660B2 (ja) | 2002-03-18 | 2002-03-18 | 燃料電池用金属製セパレータの製造方法 |
JP2002-073785 | 2002-03-18 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/907,673 Division US20110033783A1 (en) | 2001-12-12 | 2010-10-19 | Metal separator for fuel cell and its production method |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003050904A1 true WO2003050904A1 (fr) | 2003-06-19 |
Family
ID=26625011
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2002/011007 WO2003050904A1 (fr) | 2001-12-12 | 2002-10-23 | Separateur de metaux destine a une pile a combustible et procede de production correspondant |
Country Status (4)
Country | Link |
---|---|
US (2) | US7838171B2 (ja) |
CA (1) | CA2469805C (ja) |
DE (1) | DE10297495B4 (ja) |
WO (1) | WO2003050904A1 (ja) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5014644B2 (ja) | 2006-02-27 | 2012-08-29 | 新日本製鐵株式会社 | 固体高分子型燃料電池用セパレータおよびその製造方法 |
DE102007007704A1 (de) * | 2007-02-12 | 2008-08-14 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Brennstoffzellenstack in Leichtbauweise |
CN102138238B (zh) * | 2008-06-26 | 2014-04-16 | 新日铁住金株式会社 | 固体高分子型燃料电池的隔板用不锈钢材料以及使用其的固体高分子型燃料电池 |
DE102010053385A1 (de) * | 2010-12-03 | 2012-06-21 | Bayerische Motoren Werke Aktiengesellschaft | Austenitischer Stahl für die Wasserstofftechnik |
CN112575282B (zh) | 2015-04-15 | 2023-12-19 | 踏石科技有限公司 | 一种用于处理金属部件表面以达到较低的接触电阻的方法 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000323152A (ja) * | 1999-05-12 | 2000-11-24 | Nisshin Steel Co Ltd | ステンレス鋼製低温型燃料電池用セパレータ及びその製造方法 |
JP2000328200A (ja) * | 1999-05-13 | 2000-11-28 | Sumitomo Metal Ind Ltd | 通電電気部品用オーステナイト系ステンレス鋼および燃料電池 |
JP2001006694A (ja) * | 1999-06-16 | 2001-01-12 | Sumitomo Electric Ind Ltd | 固体高分子型燃料電池用セパレータ |
JP2001032056A (ja) * | 1999-07-22 | 2001-02-06 | Sumitomo Metal Ind Ltd | 通電部品用ステンレス鋼および固体高分子型燃料電池 |
JP2001214286A (ja) * | 2000-01-31 | 2001-08-07 | Sumitomo Metal Ind Ltd | 通電部品用ステンレス鋼材の製造方法 |
JP2001283872A (ja) * | 2000-03-30 | 2001-10-12 | Nisshin Steel Co Ltd | 低温型燃料電池用セパレータ及びその製造方法 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4707786B2 (ja) | 1998-05-07 | 2011-06-22 | トヨタ自動車株式会社 | 燃料電池用ガスセパレータの製造方法 |
JP3683117B2 (ja) | 1999-02-25 | 2005-08-17 | トヨタ自動車株式会社 | 燃料電池用ガスセパレータおよびその製造方法並びに燃料電池 |
KR100361548B1 (ko) | 1999-04-19 | 2002-11-21 | 스미토모 긴조쿠 고교 가부시키가이샤 | 고체고분자형 연료전지용 스텐레스 강재 |
JP2000353531A (ja) | 1999-06-08 | 2000-12-19 | Sumitomo Electric Ind Ltd | 固体高分子型燃料電池用セパレータおよびその製造方法 |
JP4639434B2 (ja) | 2000-06-15 | 2011-02-23 | 住友金属工業株式会社 | バイポーラプレートおよび固体高分子型燃料電池 |
US20020192537A1 (en) * | 2001-06-15 | 2002-12-19 | Xiaoming Ren | Metallic layer component for use in a direct oxidation fuel cell |
JP2003297380A (ja) * | 2002-04-03 | 2003-10-17 | Nisshin Steel Co Ltd | 燃料電池用ステンレス鋼製セパレータ |
-
2002
- 2002-10-23 DE DE10297495T patent/DE10297495B4/de not_active Expired - Fee Related
- 2002-10-23 WO PCT/JP2002/011007 patent/WO2003050904A1/ja active Application Filing
- 2002-10-23 US US10/497,540 patent/US7838171B2/en not_active Expired - Fee Related
- 2002-10-23 CA CA002469805A patent/CA2469805C/en not_active Expired - Fee Related
-
2010
- 2010-10-19 US US12/907,673 patent/US20110033783A1/en not_active Abandoned
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000323152A (ja) * | 1999-05-12 | 2000-11-24 | Nisshin Steel Co Ltd | ステンレス鋼製低温型燃料電池用セパレータ及びその製造方法 |
JP2000328200A (ja) * | 1999-05-13 | 2000-11-28 | Sumitomo Metal Ind Ltd | 通電電気部品用オーステナイト系ステンレス鋼および燃料電池 |
JP2001006694A (ja) * | 1999-06-16 | 2001-01-12 | Sumitomo Electric Ind Ltd | 固体高分子型燃料電池用セパレータ |
JP2001032056A (ja) * | 1999-07-22 | 2001-02-06 | Sumitomo Metal Ind Ltd | 通電部品用ステンレス鋼および固体高分子型燃料電池 |
JP2001214286A (ja) * | 2000-01-31 | 2001-08-07 | Sumitomo Metal Ind Ltd | 通電部品用ステンレス鋼材の製造方法 |
JP2001283872A (ja) * | 2000-03-30 | 2001-10-12 | Nisshin Steel Co Ltd | 低温型燃料電池用セパレータ及びその製造方法 |
Also Published As
Publication number | Publication date |
---|---|
CA2469805A1 (en) | 2003-06-19 |
US7838171B2 (en) | 2010-11-23 |
US20110033783A1 (en) | 2011-02-10 |
DE10297495B4 (de) | 2008-06-26 |
CA2469805C (en) | 2009-11-03 |
DE10297495T5 (de) | 2006-03-16 |
US20050084730A1 (en) | 2005-04-21 |
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