CN116187029B - Method for designing fuel cell stack flow channel - Google Patents

Method for designing fuel cell stack flow channel Download PDF

Info

Publication number
CN116187029B
CN116187029B CN202310047107.0A CN202310047107A CN116187029B CN 116187029 B CN116187029 B CN 116187029B CN 202310047107 A CN202310047107 A CN 202310047107A CN 116187029 B CN116187029 B CN 116187029B
Authority
CN
China
Prior art keywords
flow channel
fuel cell
flow
width
cell stack
Prior art date
Legal status (The legal status 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 status listed.)
Active
Application number
CN202310047107.0A
Other languages
Chinese (zh)
Other versions
CN116187029A (en
Inventor
陈宏�
廖世军
黄易元
唐廷江
杨海沦
刘骞
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuhan Xiongtao Hydrogen Fuel Cell Technology Co ltd
South China University of Technology SCUT
Original Assignee
Wuhan Xiongtao Hydrogen Fuel Cell Technology Co ltd
South China University of Technology SCUT
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.)
Filing date
Publication date
Application filed by Wuhan Xiongtao Hydrogen Fuel Cell Technology Co ltd, South China University of Technology SCUT filed Critical Wuhan Xiongtao Hydrogen Fuel Cell Technology Co ltd
Priority to CN202310047107.0A priority Critical patent/CN116187029B/en
Publication of CN116187029A publication Critical patent/CN116187029A/en
Application granted granted Critical
Publication of CN116187029B publication Critical patent/CN116187029B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • H01M8/0258—Collectors; Separators, e.g. bipolar separators; Interconnectors characterised by the configuration of channels, e.g. by the flow field of the reactant or coolant
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F30/00—Computer-aided design [CAD]
    • G06F30/10—Geometric CAD
    • G06F30/17—Mechanical parametric or variational design
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F30/00—Computer-aided design [CAD]
    • G06F30/20—Design optimisation, verification or simulation
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2119/00—Details relating to the type or aim of the analysis or the optimisation
    • G06F2119/02—Reliability analysis or reliability optimisation; Failure analysis, e.g. worst case scenario performance, failure mode and effects analysis [FMEA]
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Geometry (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Evolutionary Computation (AREA)
  • General Engineering & Computer Science (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Sustainable Development (AREA)
  • Manufacturing & Machinery (AREA)
  • Computational Mathematics (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Pure & Applied Mathematics (AREA)
  • Fuel Cell (AREA)

Abstract

The invention discloses a fuel cell stack runner design method, which comprises the following steps: s1, defining the form of a fuel cell stack runner and the structural parameters of the whole fuel cell stack plate; s2, considering the flow resistance characteristic in the length direction of the flow channel, and designing the length and the width of the flow channel of the fuel cell stack; s3, designing the sizes of the fuel cell back and the membrane electrode compression by considering the characteristics of back drainage and mass transfer; s4, designing reasonable flow channels through the compression amount of the coupling membrane electrode, the length and the width of the whole plate of the electric pile, the width and the depth of a single flow channel and the width of the back. When the fuel cell pile runner is designed, the current main flow runner design is considered, and the runner with reasonable design is selected according to the compression amount of the membrane electrode and the width of the back, so that the requirements of good drainage and mass transfer of the back are met, and the current density distribution consistency of the pile whole plate is improved.

Description

Method for designing fuel cell stack flow channel
Technical Field
The invention relates to the technical field of fuel cells, in particular to a fuel cell stack runner design method.
Background
The fuel cell is a novel and clean energy source, the fuel cell stack is a key core, and many enterprises in recent years are carrying out research and development work on the fuel cell stack, and the research core of the fuel cell stack is mostly concentrated on the design of a flow channel.
The quality of the fuel cell stack performance depends greatly on the design of the flow channels, the current distribution of the whole plate needs to be considered consistent, the flow channels are designed into a ridge and a flow channel, and different ridge-width ratios bring different effects.
The back of the fuel cell stack plays a role in supporting and transmitting moisture and electrons, but the back is tightly attached to the membrane electrode, and the membrane electrode is compressed in assembly, so that the drainage and mass transfer of the membrane electrode under the back determine the consistency of the current density of the whole plate compared with a runner.
In the prior art, most of the design considerations of the flow channels are flow resistance, flow distribution uniformity, processing capability, and few performance considerations.
Disclosure of Invention
In order to solve the problems, the invention provides a fuel cell stack flow channel design method, which considers the compression amount of a membrane electrode and the width of a back to select a flow channel with reasonable design, meets the requirements of good drainage and mass transfer of the back, and improves the current density distribution consistency of the whole plate of the stack.
In order to achieve the above purpose, the invention adopts the following technical scheme:
a fuel cell stack flow channel design method comprises the following steps:
s1, defining the form of a fuel cell stack runner and the structural parameters of the whole fuel cell stack plate;
s2, considering the flow resistance characteristic in the length direction of the flow channel, and designing the length and the width of the flow channel of the fuel cell stack;
s3, designing the sizes of the fuel cell back and the membrane electrode compression by considering the characteristics of back drainage and mass transfer;
s4, designing reasonable flow channels through the compression amount of the coupling membrane electrode, the length and the width of the whole plate of the electric pile, the width and the depth of a single flow channel and the width of the back.
In the above-mentioned embodiment, in step S1, the flow channel includes a straight flow channel and a serpentine flow channel, and the straight flow channel is selected and designed in consideration of the current main flow.
Preferably, in step S1, the structural parameters of the fuel cell stack plate include a plate area a, an active region area B, and a ridge width L rib Width L of flow channel ch Active region length L, active region width H, GDL thickness L GDL Depth H of flow channel ch 。
Preferably, the ridge width and the flow channel width are repeated in parallel in the active region.
As a preferable mode of the above scheme, in step S2, according to the requirement of the membrane electrode, the flow resistance along the length direction of the flow channel should be no more than 30kpa, and according to the following flow resistance along the length direction formula (1), the coupling relation (2) of the length, width and depth of the flow channel is obtained:
wherein DeltaP is the along-path flow resistance of a fuel cell stack flow channel, and the unit is kpa; mu is the air viscosity and the value is 2.01 x 10 < -5 >; v is the flow velocity of a single flow channel, and the unit is m/s; l is the length of the active region in mm; d is equivalent diameter in mm; h ch The depth of the flow channel is in mm; l (L) ch The width of the flow channel is in mm; q (Q) ch The mass flow rate of a single flow channel is in g/s; ρ is the air density, and the value is 1.23kg/m 3 The method comprises the steps of carrying out a first treatment on the surface of the k is the ratio of the flow channel flow rate to the total mass flow rate, and is dimensionless; q is total mass flow, and the unit is g/s; n is the number of the whole plate flow channels, and is dimensionless; i is the current of a galvanic pile, and the unit is A; lambda is the air metering ratio and takes the value of 2.
As the preferable scheme, the anode pressure-cathode pressure is less than or equal to 50kpa according to the requirements of the membrane electrode;
the anode has smaller flow resistance as hydrogen and water are used, and the flow resistance is calculated according to the flow resistance of less than 20kpa;
cathode inlet pressure = anode inlet pressure-20 kpa;
then, in the manner of a counter-current galvanic pile, the inlet of the anode-outlet of the cathode is the air cavity pressure difference of the largest membrane electrode, and then:
the inlet of the anode and the outlet of the cathode are less than or equal to 50kpa;
the anode inlet and the anode outlet are less than or equal to 20kpa;
the anode inlet and the cathode inlet are less than or equal to 20kpa;
in summary, the cathode inlet-cathode outlet is less than or equal to 30kpa, namely the flow resistance of the cathode is less than or equal to 30kpa.
As a preferable mode of the above scheme, in step S3, in order to ensure the gas flow in the flow channel, the total amount of gas under the back should be not more than 30%, and meanwhile, the gas transmission in the carbon paper of the fuel cell is represented by the darcy law model, and the coupling relation (4) of the width, length and membrane electrode compression of the back of the fuel cell is obtained according to the following darcy law formula (3):
in which Q rib Is the flow under the back, and the unit is g/s; f is the transverse air permeability of the membrane electrode carbon paper, and the value is 2 x 10-12; a is the cross section area of the membrane electrode carbon paper, and the unit is cm 2 ；L rib The width of the back is in mm; h GDL The thickness of the carbon paper is the unit of mm; h 0 The initial thickness of the carbon paper is the unit of mm; r is the compression amount of the membrane electrode, and the unit is%.
As the preferable choice of the scheme, the value range of the compression r of the membrane electrode is 15 percent or more and 30 percent or less.
Due to the structure, the invention has the beneficial effects that:
when the fuel cell pile runner is designed, the current main flow runner design is considered, and the runner with reasonable design is selected according to the compression amount of the membrane electrode and the width of the back, so that the requirements of good drainage and mass transfer of the back are met, and the current density distribution consistency of the pile whole plate is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the description of the embodiments will be briefly described below.
FIG. 1 is a workflow diagram of the present invention;
FIG. 2 is a schematic diagram of the overall structure of a fuel cell according to the present invention;
fig. 3 is a schematic view of a single flow channel of a fuel cell stack according to the present invention.
Detailed Description
The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1, the present embodiment provides a method for designing a flow channel of a fuel cell stack, which considers selecting a flow channel with reasonable design from the compression amount of a membrane electrode and the width of a back, meets the requirements of good drainage and mass transfer of the back, and improves the consistency of current density distribution of the whole plate of the stack, and specifically includes the following steps:
s1, defining the form of a fuel cell stack runner and the structural parameters of the whole fuel cell stack plate;
s2, considering the flow resistance characteristic in the length direction of the flow channel, and designing the length and the width of the flow channel of the fuel cell stack;
s3, designing the sizes of the fuel cell back and the membrane electrode compression by considering the characteristics of back drainage and mass transfer;
s4, designing reasonable flow channels through the compression amount of the coupling membrane electrode, the length and the width of the whole plate of the electric pile, the width and the depth of a single flow channel and the width of the back.
In step S1:
the form of the flow channel comprises a straight flow channel and a snakeThe shape flow channel, considering the current main flow form, selects the straight flow channel for design (design according to its specific purpose, this embodiment shows the design advantage better, adopts the straight flow channel mode). As shown in fig. 2 and 3, the structural parameters of the whole plate of the fuel cell stack include the whole plate area A, the active area B and the ridge width L rib Width L of flow channel ch Active region length L, active region width H, GDL thickness L GDL Depth H of flow channel ch . The present embodiment considers only the design of the active area of the fuel cell, i.e., area B, and designs outside of area B to the seal flow channels and the transition area and manifold, regardless of the design of the present embodiment, and is not explained in any great extent. And in the active region, the ridge width and the runner width are repeated side by side.
In step S2:
according to the requirements of the membrane electrode, the anode pressure and the cathode pressure are less than or equal to 50kpa;
the anode has smaller flow resistance due to the hydrogen and the water, and is generally calculated according to the flow resistance of less than 20kpa;
cathode inlet pressure = anode inlet pressure-20 kpa;
then, in the manner of a counter-current galvanic pile, the inlet of the anode-outlet of the cathode is the air cavity pressure difference of the largest membrane electrode, and then:
the inlet of the anode and the outlet of the cathode are less than or equal to 50kpa;
the anode inlet and the anode outlet are less than or equal to 20kpa;
the anode inlet and the cathode inlet are less than or equal to 20kpa;
in combination, the flow resistance of the cathode is less than or equal to 30kpa, namely less than or equal to 30kpa;
then according to the following along-path flow resistance formula (1), a coupling relation formula (2) of the length, the width and the depth of the flow channel is obtained:
wherein DeltaP is the along-path flow resistance of a fuel cell stack flow channel, and the unit is kpa; mu is the air viscosity and the value is 2.01 x 10 < -5 >; v is the flow velocity of a single flow channel, and the unit is m/s; l is the length of the active region in mm; d is equivalent diameter in mm; h ch The depth of the flow channel is in mm; l (L) ch The width of the flow channel is in mm; q (Q) ch The mass flow rate of a single flow channel is in g/s; ρ is the air density, and the value is 1.23kg/m 3 The method comprises the steps of carrying out a first treatment on the surface of the k is the ratio of the flow channel flow rate to the total mass flow rate, and is dimensionless; q is total mass flow, and the unit is g/s; n is the number of the whole plate flow channels, and is dimensionless; i is the current of a galvanic pile, and the unit is A; lambda is the air metering ratio and takes the value of 2.
The left side of the equation is the related unknown parameters of the flow channel, the right side of the equation is the known parameters, and the length direction of the flow channel needs to meet the design of the equation.
In step S3:
according to the relation between the compression amount of the membrane electrode and the thickness of the GDL, the larger the compression amount is, the thickness H of GDl GDL The smaller the drainage capacity under the back, the more difficult. Preferably, the value range of the compression amount r of the membrane electrode is 15 percent or more and 30 percent or less, the parameter is derived from membrane electrode manufacturers, the sealing is problematic when the compression amount is too low, meanwhile, the contact with the back is poor, and the internal resistance is large; when the compression amount is too large, mass transfer and air exhaust under the back are difficult, the current density of the whole plate is uneven, and the performance is poor;
in order to ensure the gas flow in the flow channel, the total gas amount under the back is not more than 30%, and meanwhile, the gas transmission in the carbon paper of the fuel cell is represented by a Darcy's law model, then the coupling relation (4) of the width, the length and the compression of the membrane electrode of the fuel cell is obtained according to the following Darcy's law formula (3):
in which Q rib Is the flow under the back, and the unit is g/s; f is the transverse air permeability of the membrane electrode carbon paper, and the value is 2 x 10-12; a is the cross section area of the membrane electrode carbon paper, and the unit is cm 2 ；L rib The width of the back is in mm; h GDL The thickness of the carbon paper is the unit of mm; h 0 The initial thickness of the carbon paper is the unit of mm; r is the compression amount of the membrane electrode, and the unit is%.
The left side of the equation is the relevant parameter of the back, the unknown quantity, and the right side of the equation is the already physical parameter quantity.
Finally, by means of the formula, a certain boundary assumption is made, and the coupling relation of relevant dimension parameters of the flow channel can be solved.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (6)

1. A fuel cell stack flow channel design method is characterized in that: the method comprises the following steps:
s1, defining the form of a fuel cell stack runner and the structural parameters of the whole fuel cell stack plate;
s2, considering the flow resistance characteristic in the length direction of the flow channel, and designing the length and the width of the flow channel of the fuel cell stack;
s3, designing the sizes of the fuel cell back and the membrane electrode compression by considering the characteristics of back drainage and mass transfer;
s4, designing reasonable flow channels through the compression amount of the coupling membrane electrode, the length and the width of the whole plate of the electric pile, the width and the depth of a single flow channel and the width of the back;
in the step S2, according to the requirements of the membrane electrode, the length direction along-path flow resistance of the flow channel is not more than 30kpa, and according to the following along-path flow resistance formula (1), a coupling relation formula (2) of the length, the width and the depth of the flow channel is obtained:
wherein DeltaP is the along-path flow resistance of a fuel cell stack flow channel, and the unit is kpa; mu is the air viscosity and the value is 2.01 x 10 < -5 >; v is the flow velocity of a single flow channel, and the unit is m/s; l is the length of the active region in mm; d is equivalent diameter in mm; h ch The depth of the flow channel is in mm; l (L) ch The width of the flow channel is in mm; q (Q) ch The mass flow rate of a single flow channel is in g/s; ρ is the air density, and the value is 1.23kg/m 3 The method comprises the steps of carrying out a first treatment on the surface of the k is the ratio of the flow channel flow rate to the total mass flow rate, and is dimensionless; q is total mass flow, and the unit is g/s; n is the number of the whole plate flow channels, and is dimensionless; i is the current of a galvanic pile, and the unit is A; lambda is the air metering ratio and the value is 2;
in step S3, in order to ensure the gas flow in the flow channel, the total amount of the gas under the back should be not more than 30%, and meanwhile, the gas transmission in the carbon paper of the fuel cell is represented by the darcy law model, and the coupling relation (4) of the width, length and membrane electrode compression of the back of the fuel cell is obtained according to the following darcy law formula (3):
in which Q rib Is the flow under the back, and the unit is g/s; f is the transverse air permeability of the membrane electrode carbon paper, and the value is 2 x 10-12; a is the cross section area of the membrane electrode carbon paper, and the unit is cm 2 ；L rib The width of the back is in mm; h GDL The thickness of the carbon paper is the unit of mm; h 0 The initial thickness of the carbon paper is the unit of mm; r is the compression amount of the membrane electrode, and the unit is%.
2. The fuel cell stack flow channel design method according to claim 1, characterized in that: in step S1, the flow channel forms include a straight flow channel and a serpentine flow channel, and the straight flow channel is selected for design in consideration of the current main flow form.
3. The fuel cell stack flow channel design method according to claim 1, characterized in that: in step S1, the structural parameters of the whole plate of the fuel cell stack comprise the whole plate area A, the active area B and the ridge width L rib Width L of flow channel ch Active region length L, active region width H, GDL thickness L GDL Depth H of flow channel ch 。
4. A fuel cell stack flow channel design method as set forth in claim 3, wherein: in the active region, the ridge width and the runner width are repeated side by side.
5. The fuel cell stack flow channel design method according to claim 1, characterized in that: according to the requirements of the membrane electrode, the anode pressure and the cathode pressure are less than or equal to 50kpa;
the anode has smaller flow resistance as hydrogen and water are used, and the flow resistance is calculated according to the flow resistance of less than 20kpa;
cathode inlet pressure = anode inlet pressure-20 kpa;
then, in the manner of a counter-current galvanic pile, the inlet of the anode-outlet of the cathode is the air cavity pressure difference of the largest membrane electrode, and then:
the inlet of the anode and the outlet of the cathode are less than or equal to 50kpa;
the anode inlet and the anode outlet are less than or equal to 20kpa;
the anode inlet and the cathode inlet are less than or equal to 20kpa;
in summary, the cathode inlet-cathode outlet is less than or equal to 30kpa, namely the flow resistance of the cathode is less than or equal to 30kpa.
6. The fuel cell stack flow channel design method according to claim 1, characterized in that: the value range of the compression r of the membrane electrode is 15 percent or more and 30 percent or less.
CN202310047107.0A 2023-01-31 2023-01-31 Method for designing fuel cell stack flow channel Active CN116187029B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310047107.0A CN116187029B (en) 2023-01-31 2023-01-31 Method for designing fuel cell stack flow channel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310047107.0A CN116187029B (en) 2023-01-31 2023-01-31 Method for designing fuel cell stack flow channel

Publications (2)

Publication Number Publication Date
CN116187029A CN116187029A (en) 2023-05-30
CN116187029B true CN116187029B (en) 2023-09-12

Family

ID=86448118

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310047107.0A Active CN116187029B (en) 2023-01-31 2023-01-31 Method for designing fuel cell stack flow channel

Country Status (1)

Country Link
CN (1) CN116187029B (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112829486A (en) * 2021-01-22 2021-05-25 中汽创智科技有限公司 Printing slurry, bipolar plate flow field using same and processing method thereof
CN115513474A (en) * 2022-10-20 2022-12-23 华南理工大学 Method for designing thickness of cathode and anode carbon paper of fuel cell stack
CN115621486A (en) * 2022-09-15 2023-01-17 海卓动力(青岛)能源科技有限公司 Gas diffusion layer with variable-gradient staggered guide flow channels and preparation method thereof

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112829486A (en) * 2021-01-22 2021-05-25 中汽创智科技有限公司 Printing slurry, bipolar plate flow field using same and processing method thereof
CN115621486A (en) * 2022-09-15 2023-01-17 海卓动力(青岛)能源科技有限公司 Gas diffusion layer with variable-gradient staggered guide flow channels and preparation method thereof
CN115513474A (en) * 2022-10-20 2022-12-23 华南理工大学 Method for designing thickness of cathode and anode carbon paper of fuel cell stack

Also Published As

Publication number Publication date
CN116187029A (en) 2023-05-30

Similar Documents

Publication Publication Date Title
JP4790873B2 (en) Membrane electrode assembly, method for producing the same, and fuel cell
JP5584177B2 (en) Gas diffusion layer, method for producing the same, and fuel cell
CN109904484B (en) Fuel cell bipolar plate structure and fuel cell
CN112072119B (en) Fuel cell gas diffusion layer structure and processing method thereof
CN208908238U (en) A kind of fuel battery double plates
CN112786913B (en) Bipolar plate and fuel cell comprising same
WO2006121157A1 (en) Fuel cell
CN101789511A (en) Membrane electrode component integrating flow field structure and fuel cell thereof
CN107968211B (en) Flow field plate structure for proton exchange membrane fuel cell
CN107634240A (en) A kind of small fuel cell metal double polar plates
CN112635783B (en) Fuel cell based on metal foam with differential permeability and without gas diffusion layer
US20040048126A1 (en) Polymer electrolyte fuel cell and production method of separator plate thereof
WO2008023879A1 (en) Fuel cell separator and fuel cell stack, and reactant gas control method thereof
CN107851824A (en) Fuel cell and fuel cell pack
CN103563144B (en) Fuel cell
CN211605306U (en) Fuel distribution manifold and fuel cell
CN113193207A (en) Parallel partition staggered proton exchange membrane fuel cell cathode flow field plate
CN101286568B (en) Constant channel cross-section in a PEMFC outlet
CN116187029B (en) Method for designing fuel cell stack flow channel
Yan et al. CFD numerical study of a new crossed inverse Z flow field for PEMFC
CN100442582C (en) Structure of double-swallow-tail shape flow field plate for proton exchange membrane fuel cell
CN103151547A (en) Composite fuel cell
CN116314911A (en) Interdigital runner structure design method for improving battery performance
CN201689934U (en) Membrane electrode component with integrated flow field structure
CN203607487U (en) Metal bipolar plate with high integration degree for proton exchange membrane fuel cell

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant