WO2018088701A1 - Plaque de séparation pour pile à combustible et pile à combustible l'utilisant - Google Patents

Plaque de séparation pour pile à combustible et pile à combustible l'utilisant Download PDF

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Publication number
WO2018088701A1
WO2018088701A1 PCT/KR2017/011212 KR2017011212W WO2018088701A1 WO 2018088701 A1 WO2018088701 A1 WO 2018088701A1 KR 2017011212 W KR2017011212 W KR 2017011212W WO 2018088701 A1 WO2018088701 A1 WO 2018088701A1
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WIPO (PCT)
Prior art keywords
pattern
fuel cell
flow path
separator
flow
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PCT/KR2017/011212
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English (en)
Korean (ko)
Inventor
김봉수
정지훈
강경문
양재춘
Original Assignee
주식회사 엘지화학
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Priority claimed from KR1020170033061A external-priority patent/KR102140126B1/ko
Application filed by 주식회사 엘지화학 filed Critical 주식회사 엘지화학
Priority to CN201780045685.3A priority Critical patent/CN109565059B/zh
Priority to JP2018566369A priority patent/JP6744007B2/ja
Priority to EP17868565.7A priority patent/EP3474358A4/fr
Priority to US16/314,120 priority patent/US11121383B2/en
Publication of WO2018088701A1 publication Critical patent/WO2018088701A1/fr

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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
    • H01M8/0258—Collectors; Separators, e.g. bipolar separators; Interconnectors characterised by the configuration of channels, e.g. by the flow field of the reactant or coolant
    • H01M8/0265—Collectors; Separators, e.g. bipolar separators; Interconnectors characterised by the configuration of channels, e.g. by the flow field of the reactant or coolant the reactant or coolant channels having varying cross sections
    • 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 fuel cell separator and a fuel cell using the same that can increase the efficiency of the fuel cell by changing the shape of the flow path formed in the fuel cell separator.
  • Fuel cell is a power generation device that converts chemical energy of fuel directly into electric energy by electrochemical reaction. It is more energy efficient than existing combustion engines and has no emission of pollutants. Very wide In other words, fuel cells are not subject to the thermodynamic limitations (Carnot efficiency) of heat engines in principle, resulting in higher power generation efficiency than existing power generation equipments, and no environmental problems with no pollution and noise. It is a high-tech energy generator that has high expectations in terms of power system operation, such as easy installation inside, which can reduce transmission and transmission facilities.
  • the basic concept of a fuel cell can be explained by the use of electrons generated by the reaction of hydrogen and oxygen. Hydrogen passes through the anode and oxygen passes through the cathode. Hydrogen reacts with oxygen electrochemically to generate water, generating current at the electrode. As the electrons pass through the electrolyte, direct current power is generated, which in turn generates heat. DC current is used as the power of a DC motor or converted into alternating current by an inverter. The heat generated from the fuel cell can be used to generate steam for reforming or to be used for heating and cooling. If not used, it is discharged as exhaust heat. Hydrogen, the fuel of a fuel cell, uses hydrogen produced through a process called reforming using pure hydrogen or hydrocarbons such as methane or ethanol. Pure oxygen can increase the efficiency of fuel cells, but there is a problem in that cost and weight increase due to oxygen storage. Therefore, the air contains a lot of oxygen, so the efficiency is slightly lower, but also directly use the air.
  • the separator of such a fuel cell has a function of maintaining the shape of the fuel cell, transferring electrons, and supplying gas.
  • materials such as graphite and metal having electrical conductivity are used for shape maintenance and electron transfer.
  • non-conductor a material having electrical conductivity is applied.
  • the gas flow path formed in a part of the separation plate is a passage through which the reactor body flows, and gas is supplied to the electrode of the electrolyte-electrode assembly located between the two separation plates through the gas flow path to generate an electrochemical reaction, thereby generating electricity.
  • the separator for fuel cells must be stable in both the cathode oxidation atmosphere and the anode reduction atmosphere of the fuel cell, and must be compact to prevent mixing of each fuel gas, and have sufficient electrical conductivity.
  • a gas flow path must be formed in the fuel cell separation plate, and the depth, width, and pattern of the gas flow channel of the separation plate are very important for smooth gas flow.
  • the flow path of the conventional separation plate is mainly used in the straight form, in this case, there is a problem that a large amount of fuel flowing out without participating in the reaction is generated by the gas flow without circulation due to the laminar flow generation In addition, some problems were alleviated by creating a cycle of reuse of the spent fuel. However, there is a problem in that a separate device and cost are consumed in order to have a circulation cycle for fuel reuse.
  • the separation plate (Patent Document 001) that can adjust the concentration of the fluid by adjusting the distance of each pattern, and to form an island-shaped pattern at the rear end of the flow path
  • Patent Document 002 A fuel cell separator (patent document 002) has been developed that allows the formation of vortices when passing through a fluid.
  • the flow path of the separator plate for fuel cells is higher. Precise structural improvement is needed.
  • Patent Document 1 Korean Unexamined Patent Publication No. 2014-0078904, "Solid Oxide Fuel Cell Having Vertical and Lateral Channels"
  • Patent Document 2 Korean Unexamined Patent Publication No. 2010-0082501, "Separation plate for fuel cell with improved flow structure and fuel cell using the same"
  • the inventors have conducted various studies to solve the above problems, and as a result, when an island-shaped pattern is formed in the flow path in a fuel cell separator formed with a flow path, irregular flow velocity distribution of the fluid in the flow path is formed. And by inducing a uniform flow rate distribution to improve the efficiency of the fuel cell, it was confirmed that the drying of the membrane during low-humidity operation to complete the present invention.
  • Another object of the present invention is to provide a fuel cell including a separator having an improved flow path structure.
  • the separation plate for a fuel cell formed with a flow path comprising a transverse channel and a longitudinal channel
  • It includes a first pattern and a second pattern arranged alternately spaced in the transverse channel,
  • the first pattern and the second pattern is a three-dimensional structure of a columnar cross-section polygonal
  • the first pattern and the second pattern are arranged such that the cross section is rotated by 180 ° to each other,
  • a separator for a fuel cell characterized in that the distance from which the first pattern and the second pattern are spaced apart from the side wall of the transverse channel, respectively.
  • the first pattern is different from the distance from each side wall of the transverse channel, respectively.
  • the second pattern is a separation plate for a fuel cell, characterized in that different distances from both side walls of the transverse channel.
  • the polygon may be at least one selected from a trapezoid, a triangle, a parallelogram, a rectangle, a pentagon, and a hexagon.
  • the present invention provides a fuel cell including the separator.
  • the flow rate is uniformly distributed while the flow rate is uniformly maintained throughout the flow path, thereby improving the performance and efficiency of the fuel cell.
  • a wide cross-sectional flow passage and a narrow cross-sectional flow passage are distributed together, and the pressure increases at the point where the cross-sectional flow passage enters the narrow passage improves the efficiency of the fuel cell. Turbulence is generated and the concentration of fuel can be uniformly mixed to improve performance.
  • the pattern formed in the flow path is a columnar three-dimensional structure having a trapezoidal cross section
  • water droplets which may be stagnant due to the slow flow rate in the flow path having a large cross-sectional area, meet a high flow rate as they ride on the trapezoidal slope, through the wide flow path. It is discharged, and part of it is formed in the flow path, so that drying of the membrane can be prevented during low-humidity operation of the fuel cell.
  • FIG. 1 is a schematic diagram of a flow path formed in a separator for a fuel cell according to the prior art.
  • FIG 2 is a schematic view of a flow path formed in the separator plate for a fuel cell according to the present invention.
  • Figure 3 is a schematic diagram showing the shape of the flow path that can be formed in the separator for fuel cell according to the present invention.
  • FIG. 4 is a schematic view showing a pattern in which the pattern is arranged in the transverse channel of the flow path in the separator plate for a fuel cell according to the present invention.
  • FIG. 5 is a schematic view of a flow path formed in the separator according to the first embodiment, a perspective view (a) of the fuel cell separator and a flow diagram (b) when the first and second separators have a trapezoidal cross section. .
  • FIG. 6 is a schematic view of a flow path formed in the separator according to the second embodiment, a perspective view (a) of the fuel cell separator and a flow diagram (b) when the first and second separators are columnar having a triangular cross section. .
  • FIG. 7 is a schematic view of a flow path formed in the separator according to the third embodiment, a perspective view (a) of the fuel cell separator and a flow path (b) in the case where the first and second separators are columnar having a parallelogram cross section. to be.
  • FIG. 8 is a schematic view of a flow path formed in the separator according to Comparative Example 1.
  • FIG. 9 is a schematic view of a flow path formed in the separator according to Comparative Example 2.
  • 10A to 10C illustrate CFD analysis results of flow paths formed in the separator for a fuel cell according to Example 1;
  • FIG. 11A and 11B are results of Computational Fluid Dynamics (CFD) analysis of a flow path formed in a separator for a fuel cell according to Example 2.
  • FIG. 11A and 11B are results of Computational Fluid Dynamics (CFD) analysis of a flow path formed in a separator for a fuel cell according to Example 2.
  • FIG. 12A and 12B show CFD analysis results of flow paths formed in the separator for a fuel cell according to Example 3.
  • FIG. 12A and 12B show CFD analysis results of flow paths formed in the separator for a fuel cell according to Example 3.
  • FIG. 13 is a CFD analysis result of a flow path formed in the separator for fuel cell according to Comparative Example 1.
  • FIG. 14 is a CFD analysis result of a flow path formed in the separator for fuel cell according to Comparative Example 2.
  • FIG. 15 is a graph illustrating a correlation between current density and cell voltage of separator plates for fuel cells of Example 1 and Comparative Example 1.
  • FIG. 15 is a graph illustrating a correlation between current density and cell voltage of separator plates for fuel cells of Example 1 and Comparative Example 1.
  • the term 'lateral channel' refers to a straight channel formed in the transverse direction in the flow path
  • the 'vertical channel' refers to a straight channel formed in the longitudinal direction
  • side wall means a wall surface of both sides of a straight flow path.
  • FIG 2 is a schematic view of a flow path formed in the separator plate for a fuel cell according to the present invention.
  • the present invention relates to a separator 1 for a fuel cell in which a flow path 100 including a transverse channel 110 and a longitudinal channel 120 is formed. And a first pattern 141 and a second pattern 142 that are alternately spaced apart from each other in the transverse channel 110, wherein the first pattern 141 and the second pattern 142 have a polygonal cross section. It is a three-dimensional structure of the shape, the first pattern 141 and the second pattern 142 is arranged so that the cross-section is rotated by 180 ° to each other, the first pattern 141 and from the side wall of the transverse channel 110
  • the separation plate 1 for a fuel cell is characterized in that the distance from which the second pattern 142 is separated from each other is different.
  • Figure 3 is a schematic diagram showing the shape of the flow path that can be formed in the separator for fuel cell according to the present invention.
  • the flow path 100 of the separator plate 1 for a fuel cell may have a shape including a horizontal channel 110 and a vertical channel 120.
  • a serpentine (FIG. 3A) may be one or more selected from an intergrated (b) of FIG. 3 and a parallel (c) of FIG. 3.
  • island-shaped first patterns 141 and second patterns 142 may be alternately spaced apart at regular intervals.
  • a columnar pattern having a rectangular cross section may be formed in the vertical channel 120.
  • the first pattern 141 and the second pattern 142 are columnar three-dimensional structures having a polygonal cross section, and the cross section of the polygon may be one of a trapezoid, a triangle, a rectangle, a pentagon, and a hexagon, and the first pattern ( Considering the irregular flow rate distribution and the uniform flow rate distribution in the flow path 100 by the second pattern 142 and 142, the cross section of the polygon is preferably trapezoidal.
  • the width of such polygons can be from 0.1 mm to 5 mm, and the height can be from 0.1 mm to 5 mm. If the width and height are less than the lower limit, it is impossible to process, which can increase the cost burden for manufacturing a practically usable fuel cell. If the size is larger than the upper limit, a large polygon can provide efficient fuel transfer between the flow path and the electrolyte membrane. As a result, the practicality may be reduced.
  • FIG. 4 is a schematic view showing a pattern in which a pattern is arranged in a transverse channel of a flow path in the separator plate for a fuel cell according to the present invention, wherein the cross section of the pattern is trapezoidal.
  • the first pattern 141 and the second pattern 142 may be arranged to be spaced apart from each other by a distance between the patterns Dw at a predetermined interval inside the flow path 100.
  • the first pattern 141 and the second pattern 142 may be a three-dimensional structure having the same size and shape, or when arranged in the flow path 100 may be arranged to be rotated by 180 ° to each other, a polygon as described above By alternately arranged so as to be rotated 180 ° to each other, it is possible to provide an irregular flow rate distribution, a constant flow rate distribution to provide a fuel cell separation plate that can improve the performance and efficiency of the fuel cell.
  • the first pattern 141 and the second pattern 142 may be arranged to be spaced apart from both sidewalls 130 of the horizontal channel 110 in the horizontal channel 110, respectively.
  • both sidewalls 130 of the lateral channel 110 are referred to as a first sidewall 131 and a second sidewall 132, respectively.
  • first pattern separation distance 1 (1a) and the first pattern 141 the distance between the first pattern 141 and the first sidewall 131 of the lateral channel 110 is referred to as a first pattern separation distance 1 (1a) and the first pattern 141.
  • first pattern separation distance 2 (1b) the distance between the second sidewall 132 of the flow path 100 is referred to as a first pattern separation distance 2 (1b).
  • the separation distance refers to a straight line which is the shortest distance between the pattern and the sidewall 130 of the lateral channel 110 of the flow path 100.
  • the distance between the second pattern 142 and the first wall surface 101w of the flow path 100 is referred to as a second pattern separation distance 1 (2a), and the second pattern ( The distance between the 142 and the second sidewall 132 of the flow path 100 is referred to as a second pattern separation distance 2 (2b).
  • the first pattern separation distance 1 (1a) and the first pattern separation distance 2 (1b) are different, and in the second pattern 142, the second pattern separation distance 1 (2a) and the second pattern The separation distance 2 (b) is different.
  • the first pattern 141 As the distances 1a and 1b spaced apart from both sidewalls 131 and 132 of the horizontal channel 130 are different from each other, the first pattern 141 is formed in the channel 100 horizontal channel ( 130 is not located at the center, and thus, the cross-sectional area of the two flow paths formed on both sides of the first pattern 141 is different, and thus the flow velocity is different.
  • the second pattern 141 is centered in the flow path 100. Since the cross-sectional area of the two flow paths formed on both sides of the second pattern 142 is different from each other, the flow rate is different.
  • first pattern separation distance 1 (1a) and the second pattern separation distance 1 (the distance from which the first pattern 141 and the second pattern 142 are separated from the first sidewall 131 of the flow path 100, respectively) 2a) is different, and the first pattern separation distance 2 (1b) and the second pattern separation distance 2 (2b), which are distances from the second sidewall 132, are also different.
  • a flow path having a different cross-sectional area may be formed.
  • a bottleneck area is formed where local pressure is generated and turbulence occurs, and the high pressure in the bottleneck area can improve the efficiency of the fuel cell.
  • the present invention also provides a fuel cell comprising the separator for the fuel cell.
  • the fuel cell including the fuel cell separator may have a nonuniform flow velocity distribution and uniform flow rate due to the pattern shape of the passage formed on the separator, thereby improving efficiency and performance, and operating in low-humidity conditions. Even drying can be prevented.
  • Example 1 Example 2 Example 3 Comparative Example 1 Comparative Example 2 Euro Howitzer Howitzer Howitzer Howitzer Howitzer Howitzer Howitzer Howitzer Presence or absence of a pattern in the flow path U U U radish U Cross section of the pattern Trapezoid triangle Parallelogram - Trapezoid Shape of the first and second pattern Cross sections of the pattern are the same as rotated 180 ° to each other Cross sections of the pattern are the same as rotated 180 ° to each other Cross sections of the pattern are the same as rotated 180 ° to each other - Cross sections of the pattern are the same as rotated 180 ° to each other First pattern tooth distance 1 (1a) 500 ⁇ m 500 ⁇ m 500 ⁇ m 500 ⁇ m - 750 ⁇ m 1st pattern separation distance 2 (1b) 1000 ⁇ m 1000 ⁇ m 1000 ⁇ m 1000 ⁇ m - 750 ⁇ m 2nd pattern separation distance 1 (2a) 1000 ⁇ m 1000 ⁇ m 1000 ⁇ m 1000 ⁇ m - 750 ⁇ m 2nd pattern separation distance 2 (2b)
  • Example 1 Separation plate for fuel cell in which a columnar pattern having a trapezoidal cross section is arranged at regular intervals in the center of the passage.
  • a fuel cell separation plate having a pattern formed in the flow path was prepared, (a) is a perspective view of the separation plate for fuel cell, and (b) is a schematic view of the flow path formed in the separation plate.
  • columnar patterns having a trapezoidal cross section are arranged at regular intervals in the transverse channel 110 of the flow path 100, and two adjacent patterns, that is, The first pattern 141 and the second pattern 142 are arranged such that the cross sections are rotated 180 ° from each other.
  • the first pattern spacing distance 1 (the first pattern 141 is a distance spaced from the first side wall 131 and the second side wall 132 of the flow channel 100, the transverse channel 110, respectively) 1 a) and the first pattern separation distance 2 (1 b) are 50 ⁇ m and 1000 ⁇ m
  • the second pattern 142 is formed from the first sidewall 131 and the second sidewall 132 of the channel 100 transverse channel 110.
  • the second pattern separation distance 1 (2a) and the second pattern separation distance 2 (2b) which are spaced apart from each other, are 1000 ⁇ m and 50 ⁇ m, respectively, and the distance between the two adjacent patterns Dw is 700 ⁇ m.
  • Example 2 Separation plate for fuel cell in which columnar patterns having a triangular cross section are arranged at regular intervals in the center of the passage.
  • a fuel cell separation plate having the same shape as in Example 1 but having a triangle formed instead of a trapezoid was prepared.
  • FIG. 6 is a schematic view of a flow path formed in the separator according to the second embodiment, a perspective view (a) of the fuel cell separator and a flow diagram (b) when the first and second separators are columnar having a triangular cross section. .
  • Example 3 Separation plate for fuel cell in which columnar patterns having a triangular cross section are arranged at regular intervals in the center of the passage.
  • a fuel cell separation plate having the same shape as in Example 1 but having a parallelogram instead of a trapezoidal pattern formed in the flow path was prepared.
  • FIG. 7 is a schematic view of a flow path formed in the separator according to the third embodiment, a perspective view (a) of the fuel cell separator and a flow path (b) in the case where the first and second separators are columnar having a parallelogram cross section. to be.
  • Comparative Example 1 Separation Plate for Fuel Cell Formed with Straight Passage Curve
  • Comparative example 2 Separation plate for fuel cell in which columnar patterns having a trapezoidal cross section are arranged at regular intervals in the center of the passage.
  • a fuel cell separation plate formed by arranging patterns in the center of the flow path was prepared, (a) is a schematic diagram of a fuel cell separation plate, and (b) is a schematic diagram of a flow path formed in the separation plate.
  • a separator for a fuel cell including a flow path 100 in which the first pattern 141 and the second pattern 142 are arranged in the same shape as in the first embodiment, except that the first pattern 141 and the second pattern 142 are provided. ) Is arranged in the center of the flow path (100).
  • the first pattern 141 and the second pattern 142 are spaced apart from the first side wall 131 and the second side wall 132 of the flow channel 100, the transverse channel 110, respectively.
  • the first pattern separation distance 1 (1a), the first pattern separation distance 2 (1b), the second pattern separation distance 1 (2a), and the second pattern separation distance 2 (2b), which are distances, are all equal to 750 ⁇ m
  • the separation distance Dw between the two patterns is 700 ⁇ m.
  • 10A to 10C illustrate CFD analysis results of flow paths formed in a separator for a fuel cell according to Example 1 of the present invention.
  • FIG. 10A illustrates a flow rate distribution in a flow path formed in a fuel cell separator.
  • flow paths having different cross-sectional areas are formed by arranging first and second patterns in the flow passage. It can be seen that vortices occur at intersections A and B where flow paths having different cross-sectional areas meet. As vortices occur in the flow path, an improvement in flow characteristics can be expected.
  • FIG. 10B illustrates the flow rate distribution in the flow path formed in the separator for fuel cell.
  • flow paths having different cross-sectional areas are formed by arranging the first and second patterns in the flow path. It is understood that the flow velocity is high in the small cross-sectional flow path and the flow velocity is small in the flow-path having a large cross-sectional area, thus exhibiting a non-uniform flow velocity distribution throughout the flow path.
  • FIG. 10C illustrates the flow rate distribution in the flow path formed in the separator for fuel cell in more detail.
  • the flow rate is faster in the flow path F1 having a smaller cross-sectional area, and the flow velocity is relatively higher in the flow path F2 having a larger cross-sectional area.
  • This slow, but trapezoidal hypotenuse of the patterns showed that the flow of the fluid was concentrated and the flow rate was increased.In order to show a uniform flow distribution throughout the flow path, the parts with the high flow rate could be alternated on both sides of the pattern. You can arrange the patterns.
  • FIG. 11A and 11B illustrate CFD analysis results of flow paths formed in the separator for a fuel cell according to Example 2.
  • the triangular pattern of Example 2 has a tendency to decrease the average flow rate of the entire flow path since the area of the individual patterns is relatively reduced compared to the trapezoidal pattern of Example 1.
  • FIG. it can be seen that flow paths having different cross-sectional areas are formed due to the arrangement of the triangular patterns in the flow path, and vortices due to turbulence and flow velocity change occur at the points where the flow paths having different cross-sectional areas meet. As vortices occur in the flow path, an improvement in flow characteristics can be expected.
  • FIG. 12A and 12B show CFD analysis results of flow paths formed in the separator for a fuel cell according to Example 3.
  • FIG. 12A and 12B show CFD analysis results of flow paths formed in the separator for a fuel cell according to Example 3.
  • FIG. 13 is a CFD analysis result of the flow path formed in the separator for fuel cell according to Comparative Example 1
  • FIG. 14 is a CFD analysis result of the flow path formed in the separator for fuel cell according to Comparative Example 2.
  • the flow path formed in the separator for fuel cell according to Comparative Example 2 has a laminar flow in the flow path formed on both sides of the patterns, so that there is no change in flow velocity on the same streamline. It can be seen that it does not appear.
  • FIG. 15 is a graph (I-V Curve) showing a correlation between current density and cell voltage of the separator plates for fuel cells of Example 1 and Comparative Example 1.
  • FIG. 15 is a graph (I-V Curve) showing a correlation between current density and cell voltage of the separator plates for fuel cells of Example 1 and Comparative Example 1.
  • Example 1 it can be seen that the voltage drop phenomenon due to the material movement is significantly improved compared to Comparative Example 1.
  • Table 1 below shows the results of measuring the current cell density at specific cell voltages, that is, 0.6 V and 0.7 V, for the separator plates for fuel cells of Example 1 and Comparative Example 1.
  • Example 1 showed a higher amount of current than in Comparative Example 1, whereby Example 1 is more than Comparative Example 1 It can be seen that it shows high efficiency and power.

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Abstract

La présente invention concerne une plaque de séparation pour une pile à combustible et une pile à combustible la comprenant et, plus spécifiquement, peut améliorer l'efficacité et les performances de la pile à combustible et empêcher un phénomène de séchage lorsque le carburant est actionné, en formant un motif en forme d'îlot à l'intérieur d'un trajet d'écoulement formé sur une plaque de séparation pour la pile à combustible de manière à induire une distribution de vitesse d'écoulement irrégulière et une distribution d'une quantité d'écoulement constante dans le trajet d'écoulement.
PCT/KR2017/011212 2016-11-14 2017-10-12 Plaque de séparation pour pile à combustible et pile à combustible l'utilisant WO2018088701A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CN201780045685.3A CN109565059B (zh) 2016-11-14 2017-10-12 用于燃料电池的分离板及使用该分离板的燃料电池
JP2018566369A JP6744007B2 (ja) 2016-11-14 2017-10-12 燃料電池用分離板及びこれを用いた燃料電池
EP17868565.7A EP3474358A4 (fr) 2016-11-14 2017-10-12 Plaque de séparation pour pile à combustible et pile à combustible l'utilisant
US16/314,120 US11121383B2 (en) 2016-11-14 2017-10-12 Separator for fuel cell and fuel cell using the same

Applications Claiming Priority (4)

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KR10-2016-0151351 2016-11-14
KR20160151351 2016-11-14
KR1020170033061A KR102140126B1 (ko) 2016-11-14 2017-03-16 연료전지용 분리판 및 이를 이용한 연료전지
KR10-2017-0033061 2017-03-16

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111276712A (zh) * 2018-12-05 2020-06-12 中国科学院大连化学物理研究所 一种改善燃料电池物料分配均匀性的极板用双面流场
WO2020203897A1 (fr) * 2019-03-29 2020-10-08 大阪瓦斯株式会社 Élément électrochimique, corps empilé d'élément électrochimique, module électrochimique, dispositif électrochimique et système d'énergie

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KR101060275B1 (ko) * 2010-06-04 2011-08-30 인제대학교 산학협력단 핀과 사행이 혼합된 연료전지용 분리판
KR101162667B1 (ko) * 2010-12-28 2012-07-05 주식회사 포스코 연료 전지용 분리판
KR20150134583A (ko) * 2014-05-22 2015-12-02 주식회사 엘지화학 연료전지용 분리판 및 이를 포함하는 연료전지

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