US20110122991A1 - Pinhole detection system of fuel cell - Google Patents
Pinhole detection system of fuel cell Download PDFInfo
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- US20110122991A1 US20110122991A1 US12/815,320 US81532010A US2011122991A1 US 20110122991 A1 US20110122991 A1 US 20110122991A1 US 81532010 A US81532010 A US 81532010A US 2011122991 A1 US2011122991 A1 US 2011122991A1
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- fuel cell
- element unit
- cell element
- detection system
- ray
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
- G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
- G01N23/04—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and forming images of the material
- G01N23/046—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and forming images of the material using tomography, e.g. computed tomography [CT]
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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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
- G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
- G01N23/06—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and measuring the absorption
- G01N23/083—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and measuring the absorption the radiation being X-rays
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2223/00—Investigating materials by wave or particle radiation
- G01N2223/40—Imaging
- G01N2223/419—Imaging computed tomograph
-
- 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
- H01M8/04298—Processes for controlling fuel cells or fuel cell systems
- H01M8/04313—Processes for controlling fuel cells or fuel cell systems characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
- H01M8/04664—Failure or abnormal function
- H01M8/04671—Failure or abnormal function of the individual fuel cell
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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 pinhole detection system of a fuel cell. More particularly, the present invention relates to a pinhole detection system of a fuel cell that detects a pinhole formed inside a fuel cell stack element.
- a fuel cell system generates electrical energy from chemical energy.
- a fuel cell system includes a fuel cell stack that generates electrical energy, a fuel supply system supplying fuel (hydrogen) with the fuel cell stack, an air supply system supplying oxygen of air, which is an oxidizing agent that is necessary for electro chemical reaction of the fuel cell stack, and a heat and water management system that controls the operating temperature and the moisture of the fuel cell stack.
- a fuel cell stack that generates electrical energy
- a fuel supply system supplying fuel (hydrogen) with the fuel cell stack
- an air supply system supplying oxygen of air, which is an oxidizing agent that is necessary for electro chemical reaction of the fuel cell stack
- a heat and water management system that controls the operating temperature and the moisture of the fuel cell stack.
- the fuel cell stack is made by laminating three layers of membrane-electrode assembly (MEA), two gas diffusion layers (GDL), or a bipolar plate.
- MEA membrane-electrode assembly
- GDL gas diffusion layers
- bipolar plate a bipolar plate
- a pinhole can be formed on an electrolyte membrane of the MEA by carbon fiber of the GDL. Further, a pinhole can be formed during pressing process for fabricating the bipolar plate.
- the pinhole of the MEA and the bipolar plate generates a burning phenomenon by the chemical reaction of oxygen and hydrogen and pollution of the MEA by leakage of antifreeze, such that output performance of the fuel cell stack and durability are decreased and the fuel cell stack can be shut down. Accordingly, there is a need in the art to inspect the fuel cell stack for a pinhole to improve the quality of the fuel cell stack. Further, there remains a need in the art to inspect a pinhole, which is formed inside the stack element.
- the present invention provides a pinhole detection system for a fuel cell having that preferably effectively detects a pinhole that is formed within a fuel cell stack element.
- a pinhole detection system of a fuel cell may include a stage on which a fuel cell element unit is suitably disposed to be detected, a drive portion that is suitably configured to move the stage so as to rotate the fuel cell element unit, a X-ray source that is suitably disposed at one side of the stage to apply X-ray to the fuel cell element unit that rotates, an image detector that suitably detects X-ray penetrating the fuel cell element unit, and a computer tomography that suitably reconstructs tormogram that is detected by the image detector to a three dimension.
- the pinhole detection system may further comprise a condense lens that is suitably disposed between the fuel cell element unit and the X-ray source, through which X-ray penetrates.
- the pinhole detection system may further comprise a filter that is suitably disposed between the fuel cell element unit and the X-ray source, through which X-ray penetrates.
- the pinhole detection system may further comprise a zone plate that is suitably disposed between the fuel cell element unit and the X-ray source, through which X-ray penetrates.
- a minimum focus of the X-ray source may range from 0.1 to 10 ⁇ m, preferably, a capacity thereof may range from 2 to 160 kV, preferably, a target thereof may include Rh, Cr, Cu, or W, and a resolution of the image detection portion may be lower than 1 ⁇ m, and a magnification thereof may preferably range from 2000 to 15000.
- a vacuum rate inside a discharge pipe of the X-ray source may be below 10 ⁇ 7 torr.
- a beryllium window may be used, in a case that an output capacity of the X-ray source may be under 60 kV.
- the fuel cell element unit is suitably rotated on the stage, X-ray is applied to the rotating unit to gain the tomogram thereof, and the tomogram is suitably reconstructed to be a three-dimensional image through a computerized tomography (CT scanning) such that the pinhole formed within the unit can be effectively detected.
- CT scanning computerized tomography
- vehicle or “vehicular” or other similar term as used herein is inclusive of motor vehicles in general such as passenger automobiles including sports utility vehicles (SUV), buses, trucks, various commercial vehicles, watercraft including a variety of boats and ships, aircraft, and the like, and includes hybrid vehicles, electric vehicles, plug-in hybrid electric vehicles, hydrogen-powered vehicles and other alternative fuel vehicles (e.g. fuels derived from resources other than petroleum).
- motor vehicles in general such as passenger automobiles including sports utility vehicles (SUV), buses, trucks, various commercial vehicles, watercraft including a variety of boats and ships, aircraft, and the like, and includes hybrid vehicles, electric vehicles, plug-in hybrid electric vehicles, hydrogen-powered vehicles and other alternative fuel vehicles (e.g. fuels derived from resources other than petroleum).
- SUV sports utility vehicles
- plug-in hybrid electric vehicles e.g. fuels derived from resources other than petroleum
- a hybrid vehicle is a vehicle that has two or more sources of power, for example both gasoline-powered and electric-powered.
- FIG. 1 is a schematic diagram of a pinhole detection system of a fuel cell according to an exemplary embodiment of the present invention.
- FIG. 2 is a schematic diagram of a pinhole detection system of a fuel cell according to another exemplary embodiment of the present invention.
- FIG. 3 shows a pinhole detection result according to an exemplary embodiment of the present invention.
- the present invention features a pinhole detection system of a fuel cell, comprising a stage on which a fuel cell element unit is disposed, a drive portion that is configured to move the stage, a X-ray source that applies X-ray to the fuel cell element unit, an image detector that detects X-ray penetrating the fuel cell element unit, and a computer tomography unit.
- the drive portion is configured to move the stage so as to rotate the fuel cell element unit.
- the X-ray source is disposed at one side of the stage to apply X-ray to the fuel cell element unit.
- the computer tomography unit reconstructs a tomogram that is detected by the image detector to a three dimensional image.
- FIG. 1 is a schematic diagram of a pinhole detection system of a fuel cell according to an exemplary embodiment of the present invention.
- a pinhole detection system of a fuel cell preferably includes an X-ray source 100 , a fuel cell element unit 110 , a stage 130 , a drive portion 140 , an image detector 120 , and a computer tomography 150 reconstructing a tomogram that is suitably detected by the image detector 120 to a three-dimensional image.
- the X-ray source 100 has a capacity ranging from 2 to 160 kV, and preferably uses Rhodium (Rh), Chrome (Cr), Copper (Cu), or Tungsten (W) as a target.
- Rh Rhodium
- Cr Chrome
- Cu Copper
- W Tungsten
- the fuel cell element unit 110 is three layers of membrane-electrode assembly (MEA), five layers of membrane-electrode assembly that two layers of gas diffusion layer (GDL) are pressed in a high temperature, a separating plate, or a bipolar plate.
- MEA membrane-electrode assembly
- GDL gas diffusion layer
- the fuel cell element unit 110 is suitably disposed on the stage 130 , and the stage 130 rotates the fuel cell element unit 110 by the drive portion 140 such as a motor.
- the X-ray source 100 suitably applies X-ray to the fuel cell element unit 110 rotating, and the image detector 120 detects the X-ray penetrating the fuel cell element unit 110 .
- a tomogram which is detected by the image detector 120 , is suitably reconstructed in a three-dimensional image by the computer tomograph 150 to effectively display a pinhole of the fuel cell stack element.
- the MEA and the GDL are suitably joined to form a configuration of five layers, wherein a pinhole can be suitably formed on an electrolyte membrane of the MEA by carbon fiber of the GDL.
- the pinhole can be formed therein.
- the image detector 120 effectively detects the pinhole that is suitably formed inside the fuel cell element unit 110 to improve productivity.
- minimum focus of the X-ray source 100 preferably ranges from 0.1 to 10 ⁇ m, the capacity thereof preferably ranges from 2 to 160 kV, Rh, Cr, Cu, or W is preferably used as a target, the resolution of the image detector 120 is smaller than 1 ⁇ m, and the magnification thereof preferably ranges from 2000 to 1500.
- vacuum rate of the light radiation pipe of the X-ray source 100 is lower than 10 ⁇ 7 torr and that a beryllium window, which is low in absorption rate, is preferably used where the output capacity of the X-ray source 100 is under 60 kV.
- high molecular electrolyte membrane, catalyst, and carbon paper are suitably prepared, and laser is used to voluntarily form a pinhole of 10 to 15 ⁇ m in the electrolyte membrane—is three layer membrane electrode assembly(MEA).
- the GDL is hot pressed on both sides of the three layer MEA in which the pinhole is suitably formed, such that five layers MEA is fabricated.
- the pinhole detection system of a fuel cell is used to suitably detect a pinhole of about 13 j m.
- FIG. 3 shows a pinhole detection result according to another exemplary embodiment of the present invention.
- the capacity of the X-ray source 100 is 5.4 kV, and Cr is used as target. Further, depending on an experimental condition or a design specification, the capacity of the X-ray source 100 and a kind of a target can be optionally varied.
- FIG. 2 is a schematic diagram of a pinhole detection system of a fuel cell according to another exemplary embodiment of the present invention.
- a pinhole detection system of a fuel cell preferably includes a X-ray source 200 , a filter 210 , a condense lens 220 , a zone plate 230 , a fuel cell element unit 240 , a stage 250 , a drive portion 260 , an image detector 270 , a computer tomograph ( 280 , CT: computed tomography).
- the filter 210 filters a predetermined wavelength from light that is applied from the X-ray source 200 , and the condense lens 220 or the zone plate 230 focuses the light generating in a predetermined area.
- the fuel cell element unit 240 is suitably disposed on the stage 250 , and the stage 250 rotates the fuel cell element unit 240 by the drive portion 260 .
- X-ray that is suitably generated from the X-ray source 200 is applied the fuel cell element unit 240 rotating through the filter 210 , the condense lens 220 , or the zone plate 230 , and the image detector 270 detects the X-ray penetrating the fuel cell element unit 240 .
- the image detector 270 suitably detects the inner shape of the fuel cell element unit 240 rotating, and the computer tomograph 280 reconstructs tomogram that is detected by the image detector 270 to a three-dimensional image.
Abstract
Description
- This application claims under 35 U.S.C. §119(a) priority to and the benefit of Korean Patent Application No. 10-2009-0115265 filed in the Korean Intellectual Property Office on Nov. 26, 2009, the entire contents of which are incorporated herein by reference.
- (a) Field of the Invention
- The present invention relates to a pinhole detection system of a fuel cell. More particularly, the present invention relates to a pinhole detection system of a fuel cell that detects a pinhole formed inside a fuel cell stack element.
- (b) Description of the Related Art
- Generally, a fuel cell system generates electrical energy from chemical energy.
- A fuel cell system includes a fuel cell stack that generates electrical energy, a fuel supply system supplying fuel (hydrogen) with the fuel cell stack, an air supply system supplying oxygen of air, which is an oxidizing agent that is necessary for electro chemical reaction of the fuel cell stack, and a heat and water management system that controls the operating temperature and the moisture of the fuel cell stack.
- Preferably, the fuel cell stack is made by laminating three layers of membrane-electrode assembly (MEA), two gas diffusion layers (GDL), or a bipolar plate.
- However, as the MEA and the GDL are joined to improve productivity, a pinhole can be formed on an electrolyte membrane of the MEA by carbon fiber of the GDL. Further, a pinhole can be formed during pressing process for fabricating the bipolar plate.
- The pinhole of the MEA and the bipolar plate generates a burning phenomenon by the chemical reaction of oxygen and hydrogen and pollution of the MEA by leakage of antifreeze, such that output performance of the fuel cell stack and durability are decreased and the fuel cell stack can be shut down. Accordingly, there is a need in the art to inspect the fuel cell stack for a pinhole to improve the quality of the fuel cell stack. Further, there remains a need in the art to inspect a pinhole, which is formed inside the stack element.
- The above information disclosed in this Background section is only for enhancement of understanding of the background of the invention and therefore it may contain information that does not form the prior art that is already known in this country to a person of ordinary skill in the art.
- The present invention provides a pinhole detection system for a fuel cell having that preferably effectively detects a pinhole that is formed within a fuel cell stack element.
- A pinhole detection system of a fuel cell according to an exemplary embodiment of the present invention may include a stage on which a fuel cell element unit is suitably disposed to be detected, a drive portion that is suitably configured to move the stage so as to rotate the fuel cell element unit, a X-ray source that is suitably disposed at one side of the stage to apply X-ray to the fuel cell element unit that rotates, an image detector that suitably detects X-ray penetrating the fuel cell element unit, and a computer tomography that suitably reconstructs tormogram that is detected by the image detector to a three dimension.
- Preferably, the pinhole detection system may further comprise a condense lens that is suitably disposed between the fuel cell element unit and the X-ray source, through which X-ray penetrates.
- In preferred embodiments, the pinhole detection system may further comprise a filter that is suitably disposed between the fuel cell element unit and the X-ray source, through which X-ray penetrates.
- In other preferred embodiments, the pinhole detection system may further comprise a zone plate that is suitably disposed between the fuel cell element unit and the X-ray source, through which X-ray penetrates.
- Preferably, a minimum focus of the X-ray source may range from 0.1 to 10 μm, preferably, a capacity thereof may range from 2 to 160 kV, preferably, a target thereof may include Rh, Cr, Cu, or W, and a resolution of the image detection portion may be lower than 1 μm, and a magnification thereof may preferably range from 2000 to 15000.
- According to certain preferred embodiments, a vacuum rate inside a discharge pipe of the X-ray source may be below 10−7 torr.
- According to other certain preferred embodiments, a beryllium window may be used, in a case that an output capacity of the X-ray source may be under 60 kV.
- As described herein, in a pinhole detection system of a fuel cell according to the present invention, the fuel cell element unit is suitably rotated on the stage, X-ray is applied to the rotating unit to gain the tomogram thereof, and the tomogram is suitably reconstructed to be a three-dimensional image through a computerized tomography (CT scanning) such that the pinhole formed within the unit can be effectively detected.
- It is understood that the term “vehicle” or “vehicular” or other similar term as used herein is inclusive of motor vehicles in general such as passenger automobiles including sports utility vehicles (SUV), buses, trucks, various commercial vehicles, watercraft including a variety of boats and ships, aircraft, and the like, and includes hybrid vehicles, electric vehicles, plug-in hybrid electric vehicles, hydrogen-powered vehicles and other alternative fuel vehicles (e.g. fuels derived from resources other than petroleum).
- As referred to herein, a hybrid vehicle is a vehicle that has two or more sources of power, for example both gasoline-powered and electric-powered.
- The above features and advantages of the present invention will be apparent from or are set forth in more detail in the accompanying drawings, which are incorporated in and form a part of this specification, and the following Detailed Description, which together serve to explain by way of example the principles of the present invention.
- The above and other features of the present invention will now be described in detail with reference to certain exemplary embodiments thereof illustrated by the accompanying drawings which are given hereinafter by way of illustration only, and thus are not limitative of the present invention, and wherein:
-
FIG. 1 is a schematic diagram of a pinhole detection system of a fuel cell according to an exemplary embodiment of the present invention. -
FIG. 2 is a schematic diagram of a pinhole detection system of a fuel cell according to another exemplary embodiment of the present invention. -
FIG. 3 shows a pinhole detection result according to an exemplary embodiment of the present invention. - Reference numerals set forth in the Drawings includes reference to the following elements as further discussed below:
-
- 100, 200: X-ray source
- 110, 240: fuel cell element unit
- 120, 270: image detector
- 130, 250: stage
- 140, 260: drive portion
- 150, 280: computer tomograph
- 210: filter
- 220: condense lens
- 230: zone plate
- It should be understood that the appended drawings are not necessarily to scale, presenting a somewhat simplified representation of various preferred features illustrative of the basic principles of the invention. The specific design features of the present invention as disclosed herein, including, for example, specific dimensions, orientations, locations, and shapes will be determined in part by the particular intended application and use environment.
- As described herein, the present invention features a pinhole detection system of a fuel cell, comprising a stage on which a fuel cell element unit is disposed, a drive portion that is configured to move the stage, a X-ray source that applies X-ray to the fuel cell element unit, an image detector that detects X-ray penetrating the fuel cell element unit, and a computer tomography unit.
- In one embodiment, the drive portion is configured to move the stage so as to rotate the fuel cell element unit.
- In another embodiment, the X-ray source is disposed at one side of the stage to apply X-ray to the fuel cell element unit.
- In another further embodiment, the computer tomography unit reconstructs a tomogram that is detected by the image detector to a three dimensional image.
- Certain exemplary embodiments of the present invention will hereinafter be described in detail with reference to the accompanying drawings.
-
FIG. 1 is a schematic diagram of a pinhole detection system of a fuel cell according to an exemplary embodiment of the present invention. - Referring to
FIG. 1 , a pinhole detection system of a fuel cell preferably includes anX-ray source 100, a fuelcell element unit 110, astage 130, adrive portion 140, animage detector 120, and acomputer tomography 150 reconstructing a tomogram that is suitably detected by theimage detector 120 to a three-dimensional image. - Preferably, the
X-ray source 100 has a capacity ranging from 2 to 160 kV, and preferably uses Rhodium (Rh), Chrome (Cr), Copper (Cu), or Tungsten (W) as a target. - According to preferred exemplary embodiments, the fuel
cell element unit 110 is three layers of membrane-electrode assembly (MEA), five layers of membrane-electrode assembly that two layers of gas diffusion layer (GDL) are pressed in a high temperature, a separating plate, or a bipolar plate. - Preferably, the fuel
cell element unit 110 is suitably disposed on thestage 130, and thestage 130 rotates the fuelcell element unit 110 by thedrive portion 140 such as a motor. - In certain preferred embodiments, the
X-ray source 100 suitably applies X-ray to the fuelcell element unit 110 rotating, and theimage detector 120 detects the X-ray penetrating the fuelcell element unit 110. In further preferred embodiments, a tomogram, which is detected by theimage detector 120, is suitably reconstructed in a three-dimensional image by thecomputer tomograph 150 to effectively display a pinhole of the fuel cell stack element. - The method by which the image detector and the computer tomography detects and reconstructs the detected tomogram to a three-dimensional images are known to one of skill in the art, and thus a detailed description thereof is omitted.
- In another exemplary embodiment of the present invention, the MEA and the GDL are suitably joined to form a configuration of five layers, wherein a pinhole can be suitably formed on an electrolyte membrane of the MEA by carbon fiber of the GDL. In further preferred embodiments, while the bipolar plate is suitably pressed to be manufactured, the pinhole can be formed therein.
- Preferably, the
image detector 120 effectively detects the pinhole that is suitably formed inside the fuelcell element unit 110 to improve productivity. - In another further exemplary embodiment of the present invention, minimum focus of the
X-ray source 100 preferably ranges from 0.1 to 10 μm, the capacity thereof preferably ranges from 2 to 160 kV, Rh, Cr, Cu, or W is preferably used as a target, the resolution of theimage detector 120 is smaller than 1 μm, and the magnification thereof preferably ranges from 2000 to 1500. - In other further embodiments, it is desirable that vacuum rate of the light radiation pipe of the
X-ray source 100 is lower than 10−7 torr and that a beryllium window, which is low in absorption rate, is preferably used where the output capacity of theX-ray source 100 is under 60 kV. - Preferably, as a pinhole measure object, high molecular electrolyte membrane, catalyst, and carbon paper are suitably prepared, and laser is used to voluntarily form a pinhole of 10 to 15 μm in the electrolyte membrane—is three layer membrane electrode assembly(MEA).
- Further, the GDL is hot pressed on both sides of the three layer MEA in which the pinhole is suitably formed, such that five layers MEA is fabricated.
- In another further embodiment, the pinhole detection system of a fuel cell is used to suitably detect a pinhole of about 13 j m. For example,
FIG. 3 shows a pinhole detection result according to another exemplary embodiment of the present invention. - Preferably, the capacity of the
X-ray source 100 is 5.4 kV, and Cr is used as target. Further, depending on an experimental condition or a design specification, the capacity of theX-ray source 100 and a kind of a target can be optionally varied. -
FIG. 2 is a schematic diagram of a pinhole detection system of a fuel cell according to another exemplary embodiment of the present invention. - In further exemplary embodiments and referring to
FIG. 2 , a pinhole detection system of a fuel cell preferably includes aX-ray source 200, afilter 210, a condenselens 220, azone plate 230, a fuelcell element unit 240, astage 250, adrive portion 260, animage detector 270, a computer tomograph (280, CT: computed tomography). - Preferably, the
filter 210 filters a predetermined wavelength from light that is applied from theX-ray source 200, and the condenselens 220 or thezone plate 230 focuses the light generating in a predetermined area. - As described herein, the fuel
cell element unit 240 is suitably disposed on thestage 250, and thestage 250 rotates the fuelcell element unit 240 by thedrive portion 260. - Preferably, X-ray that is suitably generated from the
X-ray source 200 is applied the fuelcell element unit 240 rotating through thefilter 210, the condenselens 220, or thezone plate 230, and theimage detector 270 detects the X-ray penetrating the fuelcell element unit 240. - In further preferred embodiments, the
image detector 270 suitably detects the inner shape of the fuelcell element unit 240 rotating, and thecomputer tomograph 280 reconstructs tomogram that is detected by theimage detector 270 to a three-dimensional image. - While this invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.
Claims (11)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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US14/150,116 US9170216B2 (en) | 2009-11-26 | 2014-01-08 | Pinhole detection system of fuel cell |
US14/100,900 US20150357660A1 (en) | 2009-11-26 | 2015-08-26 | Pinhole detection system of fuel cell |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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KR10-2009-0115265 | 2009-11-26 | ||
KR1020090115265A KR101145628B1 (en) | 2009-11-26 | 2009-11-26 | Pinhole detection system of fuel cell |
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US14/100,900 Continuation-In-Part US20150357660A1 (en) | 2009-11-26 | 2015-08-26 | Pinhole detection system of fuel cell |
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US20110122991A1 true US20110122991A1 (en) | 2011-05-26 |
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US12/815,320 Abandoned US20110122991A1 (en) | 2009-11-26 | 2010-06-14 | Pinhole detection system of fuel cell |
US14/150,116 Expired - Fee Related US9170216B2 (en) | 2009-11-26 | 2014-01-08 | Pinhole detection system of fuel cell |
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US14/150,116 Expired - Fee Related US9170216B2 (en) | 2009-11-26 | 2014-01-08 | Pinhole detection system of fuel cell |
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KR (1) | KR101145628B1 (en) |
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US20120140880A1 (en) * | 2010-12-02 | 2012-06-07 | Kia Motors Corporation | System for detecting pin hole of fuel cell stack parts |
US20140119499A1 (en) * | 2009-11-26 | 2014-05-01 | Kia Motors Corporation | Pinhole detection system of fuel cell |
US10998555B2 (en) * | 2017-12-15 | 2021-05-04 | Honda Motor Co., Ltd. | Electrode joining method and electrode joining apparatus |
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KR20140084310A (en) | 2011-11-02 | 2014-07-04 | 존슨 맛쎄이 퍼블릭 리미티드 컴파니 | Scanning method and apparatus |
WO2014181478A1 (en) * | 2013-05-10 | 2014-11-13 | 株式会社ニコン | X-ray device and manufacturing method of structure |
KR101673346B1 (en) | 2015-03-18 | 2016-11-07 | 현대자동차 주식회사 | Inspection apparatus of electrolyte membrane |
US20170023495A1 (en) * | 2015-07-20 | 2017-01-26 | Apple Inc. | Universal computerized tomography fixture system with a multi-scan robotic positioning apparatus |
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US20140119499A1 (en) * | 2009-11-26 | 2014-05-01 | Kia Motors Corporation | Pinhole detection system of fuel cell |
US9170216B2 (en) * | 2009-11-26 | 2015-10-27 | Hyundai Motor Company | Pinhole detection system of fuel cell |
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US8654920B2 (en) * | 2010-12-02 | 2014-02-18 | Hyundai Motor Company | System for detecting pin hole of fuel cell stack parts |
US10998555B2 (en) * | 2017-12-15 | 2021-05-04 | Honda Motor Co., Ltd. | Electrode joining method and electrode joining apparatus |
Also Published As
Publication number | Publication date |
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US20140119499A1 (en) | 2014-05-01 |
KR20110058457A (en) | 2011-06-01 |
KR101145628B1 (en) | 2012-05-15 |
DE102010038604A1 (en) | 2011-06-01 |
US9170216B2 (en) | 2015-10-27 |
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