WO2007034628A1 - 燃料電池用セパレータ材とその製造方法 - Google Patents
燃料電池用セパレータ材とその製造方法 Download PDFInfo
- Publication number
- WO2007034628A1 WO2007034628A1 PCT/JP2006/315348 JP2006315348W WO2007034628A1 WO 2007034628 A1 WO2007034628 A1 WO 2007034628A1 JP 2006315348 W JP2006315348 W JP 2006315348W WO 2007034628 A1 WO2007034628 A1 WO 2007034628A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- resin
- type epoxy
- epoxy resin
- mold
- phenol
- Prior art date
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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
- H01M8/0226—Composites in the form of mixtures
-
- 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
-
- 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
- H01M8/0213—Gas-impermeable carbon-containing materials
-
- 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
- H01M8/0221—Organic resins; Organic polymers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2250/00—Fuel cells for particular applications; Specific features of fuel cell system
- H01M2250/20—Fuel cells in motive systems, e.g. vehicle, ship, plane
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/40—Application of hydrogen technology to transportation, e.g. using fuel cells
Definitions
- the present invention relates to a separator material for a fuel cell used in, for example, automobiles and small distributed power sources, and a method for manufacturing the same.
- Fuel cells directly convert the chemical energy of fuel into electrical energy, have high conversion efficiency into electrical energy, and are expected to develop in the future as small-scale distributed sources such as automobile power supplies.
- a fuel cell is composed of an electrolyte membrane, a catalyst electrode that supports a catalyst such as platinum on both sides, and a gas for supplying a fuel gas such as hydrogen or an oxidant gas such as oxygen or air to each electrode. It consists of a stack of single cells consisting of separators with flow paths, etc., and a current collector provided outside the stack.
- This separator requires a high degree of gas impermeability to supply the fuel gas and oxidant gas to the electrode in a completely separated state, and the internal resistance of the battery is low to increase power generation efficiency.
- High electrical conductivity is required.
- high strength is required because the cells are tightened tightly so that the single cells are tightly assembled.
- cracks may occur due to expansion and contraction due to vibration, impact, temperature change, etc. The material properties must be such that they do not break.
- Carbonaceous materials have been used for separator materials that require such material characteristics, and carbon / carbon powder such as graphite is bound with a thermosetting resin as a binder, and carbon / A resin-cured molded body is preferably used.
- the applicant of the present invention is a fuel cell separator material comprising a rubber composition in which 100 parts by weight of the rubber component and 100 to 150 parts by weight of graphite powder and 80 to 150 parts by weight of carbon black are blended. Japan Patent Publication 2001-216977).
- This separator material for a fuel cell is intended to prevent damage and deformation at the time of assembling a single cell by the elasticity unique to the rubber composition.
- Japanese Patent Publication No. 2003-217605 includes a thermosetting resin, a carbon base material having conductivity, and a gen rubber as essential components, and the gen rubber is the thermosetting resin.
- a molding material for a fuel cell separator characterized by having a biofunctional group reacting with a resin has been proposed.
- the difference between the viscosity of the gen rubber and the melt viscosity of the thermosetting resin is large, it is difficult to mix homogeneously, and the gen rubber is dispersed in islands in the thermosetting resin. As a result, a sufficient breaking strain cannot be obtained.
- Japanese Patent Publication No. 200.5-082745 discloses a resin having an ethylenically unsaturated double bond in a molecule obtained by reacting a conductive filler, an epoxy resin and acrylic anhydride, and ethylene in the molecule.
- a fuel cell separator formed by molding a conductive resin composition containing a monomer having a polymerizable unsaturated double bond and a thickener is disclosed.
- the ester structure present in the resin composition causes hydrolysis and has a disadvantage that it cannot withstand long-term use.
- Japanese Patent Publication No. 2005-100814 discloses a fuel cell separator formed by molding a conductive composition in which an elastomer and Z or a rubbery polymer are dispersed in a matrix resin containing conductive particles.
- a fuel cell separator wherein the elastomer and the rubbery polymer have a number average particle diameter of 0.05 to 5. However, it is difficult to uniformly disperse the elastomer and rubbery polymer in the matrix resin. Disclosure of the invention
- the present inventors conducted research to improve and improve the material properties of the separator material made of carbon Z hard resin molded body, and damaged the separator when assembling the battery stack or operating the battery for a long time. In order to prevent this, it was confirmed that a bending strength of 30 MPa or more and a breaking strain of 1% or more are suitable.
- the present invention has been developed based on this knowledge, and has a high fracture strain, high material strength, and can prevent damage during assembly of a battery stack or turtles during battery operation as a separator material for a fuel cell.
- Another object of the present invention is to provide a fuel cell separator material having high conductivity and gas impermeability and having excellent material properties, and a method for producing the same.
- a separator for a fuel cell comprises a mixed resin of a bifunctional aliphatic alcohol ether type epoxy resin and a polyfunctional phenol type epoxy resin, a phenol resin curing agent, and a curing accelerator. It is characterized by comprising a carbon Z resin cured molded body in which carbon powder is bound by a binding material containing as an essential component.
- the proportion of the bifunctional aliphatic alcohol ether type epoxy resin in the mixed resin is preferably 40% by weight or more.
- the method for producing a separator for a fuel cell according to the present invention comprises dissolving a bifunctional aliphatic alcohol ether type epoxy resin and a polyfunctional phenol type epoxy resin, a phenol resin curing agent, and a curing accelerator in an organic solvent. After the resin solution and carbon powder are kneaded, the organic solvent is removed by volatilization, and then the molding powder obtained by grinding the kneaded material is filled in a preforming mold, and the upper mold is placed on the 1 ⁇
- a preform formed by pressurizing to 10 MPa is charged into a mold, and hot press molding is performed at a pressure of 20 to 50 MPa and a temperature of 15 to 25 ° C. .
- the binder resin that binds and integrates the carbon powder is mainly a mixed resin of a bifunctional aliphatic alcohol ether type epoxy resin and a polyfunctional phenol type epoxy resin. Special ⁇ 3 ⁇ 4.
- the bifunctional aliphatic alcohol ether type epoxy resin is represented by the following general formula (A), O is oxygen, R is an alkylene group having 2 to 10 carbon atoms, n is an integer of 1 or more, G Is a compound consisting of a glycidyl group.
- the number of carbon atoms contained between glycidyl groups is preferably an epoxy resin having 6 or more.
- the bifunctional aliphatic alcohol ether type epoxy resin since it has a linear structure, it has a structure in which molecules easily move, exhibits flexibility, and easily exhibits rubber elasticity. Therefore, flexibility, elongation, fracture strain, etc. are increased.
- bifunctional aliphatic alcohol ether type epoxy resin represented by the general formula (A) include hexanediol type epoxy resin, polyethylene glycol type epoxy resin, polypropylene glycol type epoxy resin, poly An oxytetramethylene glycoleno type epoxy resin can be exemplified, and among these resins, those having a relatively small proportion of oxygen atoms are preferable. When the number of oxygen is reduced, water resistance is improved and water absorption swelling is reduced.
- a multifunctional phenol type epoxy resin for example, a bifunctional phenol type epoxy resin has two epoxy groups in the molecule, and as shown by the following general formula (B), for example, a bisphenol A type epoxy resin
- B for example, a bisphenol A type epoxy resin
- n l ⁇ integer of 10
- a carbon Z resin cured molded body in which carbon powder is bound as a binder exhibits high strength, but flexibility and elongation are reduced, so that fracture strain is extremely small.
- m integer from 3 to 7
- a resin for binding carbon powder it has excellent flexibility (softness), but it has low strength, bifunctional aliphatic alcohol ether type epoxy resin, and high strength but flexibility (flexibility). In combination with a polyfunctional phenol type epoxy resin having a low viscosity, both flexibility (flexibility) and strength are achieved.
- a mixed resin of a bifunctional aliphatic alcohol ether type epoxy resin and a polyfunctional phenol type epoxy resin is used, and the mixing ratio is adjusted to balance strength and fracture strain. It is possible to prevent the separator from being damaged when the battery stack is assembled or when the battery is operated for a long period of time. It has a material property with a bending strength of 3 OMPa or more and a breaking strain of 1% or more. A separator material is provided. If a bifunctional aliphatic alcohol ether type epoxy resin having a large number of carbon atoms between glycidyl groups is used, the resin exhibits high flexibility, so the proportion in the mixed resin is small.
- the proportion of the bifunctional aliphatic alcohol ether type epoxy resin in the mixed resin is preferably 40% by weight or more.
- the proportion of the resin is less than 40% by weight, the fracture strain of the carbon / resin-cured molded body becomes small, and breakage tends to occur.
- the polyfunctional phenol type epoxy resin can be used as long as it is a compound having a phenol structure in its molecule and having two or more epoxy groups.
- bisphenol type epoxy resin, novolak Type epoxy resin, orthocresol novolac type epoxy resin, biphenyl type epoxy resin, naphthalene skeleton containing type epoxy resin, etc. are applied.
- Phenolic resin is a curing agent for mixed resin of bifunctional aliphatic alcohol ether type epoxy resin and polyfunctional phenol type epoxy resin, and is not particularly limited. Resin, cresol novolac resin, xylene type phenol resin, dicyclopentagen type phenol resin, bisphenol type nopolak resin, etc.
- novolac resin bisphenol A, bisphenol F, bisphenol S, tetrabromobis Bisphenols such as phenol A, and the bisphenols are reacted with diglycidyl ether of the bisphenols in a high molecular weight or epichlorohydrin and the bisphenols in an excess ratio.
- diglycidyl ether of the bisphenols in a high molecular weight or epichlorohydrin and the bisphenols in an excess ratio A bisphenol-based resin obtained in this way is used.
- the mixing ratio of the phenol resin curing agent is preferably set such that the equivalent ratio of all epoxy groups and phenolic hydroxyl groups of the phenol resin in the mixed resin is 0.7 to 1.5. If the equivalent ratio is less than 0.7 or exceeds 1.5, the remaining amount of unreacted phenol resin or epoxy resin increases.
- curing accelerators examples include phosphorus compounds, tertiary amines, imidazoles, organic acid metal salts, Lewis acids, and amine complex salts. These compounds can be used alone or in combination of two or more. Poxy resin is added in an amount of 0.05 to 3 parts by weight per 100 parts by weight.
- the fuel cell separator material of the present invention includes a mixed resin of a bifunctional aliphatic alcohol ether type epoxy resin and a polyfunctional phenol type epoxy resin, a phenol resin curing agent, and a curing accelerator as essential components. It is formed from a carbon Z resin cured molded body in which carbon powder is bound by a binder, and graphite powder is preferably used as the carbon powder.
- graphite powder artificial graphite, natural graphite, expanded graphite, or a mixture thereof is used, and it is preferable to use a graphite powder that has been pulverized with an appropriate powder and sieved to adjust the particle size.
- the particle size of the graphite powder is, for example, an average particle size of 50 ⁇ m or less and the maximum particle size to prevent dropping of graphite powder particles and generation of cracks between particles when providing gas grooves in the separator. It is preferable to adjust the particle size to 100 ⁇ m or less.
- the quantitative ratio in the carbon / resin cured molded body is preferably such that the mixing ratio of the resin solid content of the mixed resin and the carbon powder is 10:90 to 35:65. If the resin solid content is less than 10% by weight and the weight ratio of the carbon powder exceeds 90% by weight, the resin content is small, so the fluidity during molding decreases, and it is difficult to obtain a kneaded product with a uniform structure. When the content exceeds 35% by weight and the carbon powder is less than 65% by weight, the moldability is improved. The electric resistance of the carbon Z resin cured molded body is large. Battery performance will be reduced.
- the separator material for a fuel cell according to the present invention comprises a bifunctional aliphatic alcohol ether type epoxy resin and a polyfunctional phenol type epoxy resin, a resin solution obtained by dissolving a phenol resin curing agent and a curing accelerator in an organic solvent, and carbon powder. After that, the organic solvent is removed by volatilization, and then the molding powder obtained by grinding the kneaded material is filled in a preforming mold, and the upper mold is placed on the 1-: L 0 MPa and pressurized to preform. It is manufactured by charging the reformer into a mold and hot pressing at a pressure of 20 ⁇ 5 01 ⁇ ?
- Dissolve to prepare a resin solution The resin solution and the carbon powder are mixed in a desired weight ratio, for example, preferably the resin solid content of the mixed resin and the carbon powder are mixed in a weight ratio of 10:90 to 35:65, a kneader, Using a suitable kneader such as a caro pressure kneader or a twin screw kneader, the mixture is sufficiently kneaded to produce a uniform kneaded product. After kneading, the organic solvent is removed from the kneaded product by vacuum drying or air drying.
- the kneaded product is pulverized to produce a molding powder.
- the conductivity decreases.
- the kneaded product is pulverized to produce a molding powder, the carbon surface is exposed and the conductivity is restored. Furthermore, anisotropy of material properties can be corrected by grinding the kneaded product.
- This plate-like preform is applied with a release agent to a molding die in which concave and convex portions forming a groove to be a gas flow path of the separator are engraved, and pressure is 20 to 50 MPa, temperature Separator material consisting of a carbon / resin hard molded body in which the resin is hardened by hot pressing at a temperature of 1550 to 2500 ° C and the graphite powder is bonded with the hardened resin. Is manufactured. The separator material thus manufactured is further machined as necessary.
- a bifunctional aliphatic alcohol ether type epoxy resin (epoxy resin A) and a polyfunctional phenol type epoxy resin (epoxy resin B) were mixed at the ratio shown in Table 1.
- a novolac type phenolic resin (curing agent) was added so that the equivalent ratio of all epoxy groups in the mixed resin to the phenolic hydroxyl group of the phenolic resin was 1.0, and 2ethyl 4-methylimidazole (cured) Accelerator) was added at a ratio of 1 part by weight to 100 parts by weight of the mixed resin and dissolved in methyl ketone to prepare a resin solution.
- Graphite powder uses artificial graphite powder with an average particle size of 40 m and a maximum particle size of 100 ⁇ m or less, and the weight ratio of the resin solid content of the mixed resin solution to the graphite powder was mixed so as to be 20:80, put into a kneader and kneaded for 1 hour. The kneaded product is dried by aeration for 24 hours at room temperature. Methyl ethyl ketone was volatilized and removed by air drying, and then the kneaded product was pulverized, and the particle size was adjusted to obtain a molding powder of 0.1 to 0.5 mm.
- the outer shape of the groove is 1 mm wide and 0.6 mm deep within the range of 200X 200 mm.
- the outer mold 27 0X270 mm is coated with a fluorine-based mold release agent.
- the preform was inserted and hot pressed at a pressure of 4 OMPa and a temperature of 180 ° C.
- a separator material (200X 200 mm, consisting of a graphite Z resin cured molded body in which graphite powder is bonded with a cured resin, with a groove of lmm width and 0.6 nun depth to be a gas flow path, is formed.
- the thinnest thickness (0.45mm) was manufactured, test pieces were prepared from the manufactured separator material, and the material properties were measured by the following method. Table 2 shows the measurement results.
- the bending strength at room temperature was measured by JI S R1601.
- test pieces were measured at a current of 1 A while contacting the test pieces with IMP a pressure.
- the amount of gas permeation per unit cross-sectional area when a differential pressure of 0.2 MPa was applied with nitrogen gas was measured.
- Examples 1 to 4 according to the present invention have the bending strength, specific resistance, contact resistance and gas permeability coefficient necessary for a fuel cell separator material, and are found to have excellent fracture strain. It was.
- the material characteristics suitable as a separator material for a fuel cell that is, the fracture strain is large, the material strength is excellent, and the conductivity, the gas impermeability, etc. are at a favorable level. It is possible to provide a separator material and a manufacturing method thereof.
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Fuel Cell (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP06782216A EP1930972B1 (en) | 2005-09-26 | 2006-07-27 | Separator material for fuel battery and process for producing the same |
KR1020087008501A KR101325290B1 (ko) | 2005-09-26 | 2006-07-27 | 연료 전지용 세퍼레이터재와 그 제조 방법 |
CN2006800354654A CN101273485B (zh) | 2005-09-26 | 2006-07-27 | 燃料电池隔板材料及其制备方法 |
CA002622225A CA2622225A1 (en) | 2005-09-26 | 2006-07-27 | Separator material for fuel battery and process for producing the same |
US11/992,087 US20090270565A1 (en) | 2005-09-26 | 2006-07-27 | Fuel Cell Separator Material and Process of Producing the Same |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005-277613 | 2005-09-26 | ||
JP2005277613A JP5041309B2 (ja) | 2005-09-26 | 2005-09-26 | 燃料電池用セパレータ材とその製造方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2007034628A1 true WO2007034628A1 (ja) | 2007-03-29 |
Family
ID=37888683
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2006/315348 WO2007034628A1 (ja) | 2005-09-26 | 2006-07-27 | 燃料電池用セパレータ材とその製造方法 |
Country Status (8)
Country | Link |
---|---|
US (1) | US20090270565A1 (ja) |
EP (1) | EP1930972B1 (ja) |
JP (1) | JP5041309B2 (ja) |
KR (1) | KR101325290B1 (ja) |
CN (1) | CN101273485B (ja) |
CA (1) | CA2622225A1 (ja) |
TW (1) | TWI404740B (ja) |
WO (1) | WO2007034628A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112928391A (zh) * | 2021-01-13 | 2021-06-08 | 横店集团东磁股份有限公司 | 一种防撞击碱锰电池 |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009158118A (ja) * | 2007-12-25 | 2009-07-16 | Tokai Carbon Co Ltd | 固体高分子形燃料電池用セパレータ材およびその製造方法 |
KR101227900B1 (ko) * | 2010-10-28 | 2013-02-06 | 주식회사 유니테크 | 기계적, 전기적 특성이 우수한 신규의 복합 재료 조성물 |
JP5915935B2 (ja) * | 2012-04-04 | 2016-05-11 | 東海カーボン株式会社 | 燃料電池用セパレータの製造方法 |
JP5842142B2 (ja) * | 2014-02-20 | 2016-01-13 | パナソニックIpマネジメント株式会社 | 燃料電池セパレータ用樹脂組成物、燃料電池セパレータ成形用シート及び燃料電池セパレータ |
JP5880649B1 (ja) * | 2014-09-08 | 2016-03-09 | 日清紡ケミカル株式会社 | 燃料電池セパレータ |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002289214A (ja) * | 2001-03-27 | 2002-10-04 | Nichias Corp | 燃料電池用セパレータ |
JP2003086198A (ja) * | 2001-09-14 | 2003-03-20 | Sumitomo Bakelite Co Ltd | 燃料電池セパレーター用成形材料の製造方法 |
WO2003056648A1 (en) * | 2001-12-27 | 2003-07-10 | Hitachi Chemical Company, Ltd. | Fuel cell-use separator |
JP2005071887A (ja) * | 2003-08-26 | 2005-03-17 | Matsushita Electric Works Ltd | 燃料電池用セパレータ成形用樹脂組成物及び燃料電池用セパレータ |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6056171B2 (ja) * | 1980-03-17 | 1985-12-09 | 信越化学工業株式会社 | エポキシ樹脂組成物 |
US5416138A (en) * | 1992-09-24 | 1995-05-16 | Sumitomo Bakelite Company Limited | Epoxy resin composition |
ATE528814T1 (de) * | 1999-12-06 | 2011-10-15 | Hitachi Chemical Co Ltd | Brennstoffzelle, brennstoffzellenseparator und herstellungsverfahren dafür |
JP2002145985A (ja) * | 2000-11-10 | 2002-05-22 | Toshiba Chem Corp | 液状封止用樹脂組成物 |
EP1246284B1 (en) * | 2001-03-27 | 2007-10-17 | Nichias Corporation | Fuel cell separator and method for manufacturing the same |
-
2005
- 2005-09-26 JP JP2005277613A patent/JP5041309B2/ja not_active Expired - Fee Related
-
2006
- 2006-07-27 US US11/992,087 patent/US20090270565A1/en not_active Abandoned
- 2006-07-27 WO PCT/JP2006/315348 patent/WO2007034628A1/ja active Application Filing
- 2006-07-27 KR KR1020087008501A patent/KR101325290B1/ko not_active IP Right Cessation
- 2006-07-27 CA CA002622225A patent/CA2622225A1/en not_active Abandoned
- 2006-07-27 EP EP06782216A patent/EP1930972B1/en not_active Expired - Fee Related
- 2006-07-27 CN CN2006800354654A patent/CN101273485B/zh not_active Expired - Fee Related
- 2006-08-01 TW TW095128124A patent/TWI404740B/zh not_active IP Right Cessation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002289214A (ja) * | 2001-03-27 | 2002-10-04 | Nichias Corp | 燃料電池用セパレータ |
JP2003086198A (ja) * | 2001-09-14 | 2003-03-20 | Sumitomo Bakelite Co Ltd | 燃料電池セパレーター用成形材料の製造方法 |
WO2003056648A1 (en) * | 2001-12-27 | 2003-07-10 | Hitachi Chemical Company, Ltd. | Fuel cell-use separator |
JP2005071887A (ja) * | 2003-08-26 | 2005-03-17 | Matsushita Electric Works Ltd | 燃料電池用セパレータ成形用樹脂組成物及び燃料電池用セパレータ |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112928391A (zh) * | 2021-01-13 | 2021-06-08 | 横店集团东磁股份有限公司 | 一种防撞击碱锰电池 |
Also Published As
Publication number | Publication date |
---|---|
EP1930972A1 (en) | 2008-06-11 |
KR20080049816A (ko) | 2008-06-04 |
TWI404740B (zh) | 2013-08-11 |
CN101273485B (zh) | 2012-05-23 |
EP1930972A4 (en) | 2009-12-30 |
TW200712087A (en) | 2007-04-01 |
CA2622225A1 (en) | 2007-03-29 |
JP2007087864A (ja) | 2007-04-05 |
US20090270565A1 (en) | 2009-10-29 |
EP1930972B1 (en) | 2011-07-13 |
JP5041309B2 (ja) | 2012-10-03 |
CN101273485A (zh) | 2008-09-24 |
KR101325290B1 (ko) | 2013-11-08 |
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