A method for determining the number of stacks and related products

Abstract

This invention discloses a method for determining the number of fuel cell stack cells and related products, relating to the field of fuel cell technology. The method includes: acquiring experimental data on the voltage of a single cell corresponding to different numbers of stack cells under different current densities; grouping the experimental data according to cell number intervals, performing linear fitting on the experimental data within each cell number interval to obtain the slope of each interval; determining the slope abrupt change point based on the slope-cell number relationship curve, and using the upper limit of the cell number interval corresponding to the slope abrupt change point as the maximum allowable number of cells to be assembled in a single stack; determining the total required number of cells based on the required power and the rated power of a single cell; and determining the required number of stacks and the number of cells per stack based on the total required number of cells and the maximum allowable number of cells to be assembled in a single stack. This method avoids the cumbersome process of repeated experiments required by traditional methods, improves design efficiency, and optimizes stack configuration.

Description

Technical Field

[0001] This invention relates to the field of fuel cell technology, and in particular to a method for determining the number of stack plates and related products. Background Technology

[0002] In the design and practical application of fuel cell stacks, the rationality of the number of stack plates determines the overall performance and application feasibility of the fuel cell stack and the entire fuel cell system.

[0003] The number of stack cells refers to the number of individual cells (usually composed of membrane electrode assemblies and bipolar plates) connected in series in a fuel cell stack. Currently, determining the number of stack cells often relies on extensive testing and empirical judgment. This method not only consumes significant human, material, and time resources, but also, due to the complexity of experimental conditions and environments, makes it difficult to fully guarantee the accuracy and reliability of the results. Furthermore, repeated parameter adjustments and multiple verifications are required during the testing process, further increasing research and time costs. While this traditional trial-and-error method can provide some reference for stack design, its low efficiency is becoming increasingly prominent, making it difficult to meet the demands of the rapid development of modern fuel cell technology. Summary of the Invention

[0004] To address the aforementioned issues, this invention proposes a method for determining the number of fuel cell stack segments and related products, which improves design efficiency, optimizes stack configuration, meets high-power output requirements, and ensures high efficiency and reliability of the entire fuel cell system.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: In a first aspect, the present invention provides a method for determining the number of electrode stacks, comprising: To obtain experimental data on the voltage of a single cell corresponding to different numbers of cells in the fuel cell stack under different current densities; The experimental data were grouped according to the number of pieces, and linear fitting was performed on the experimental data within each number of pieces interval to obtain the slope of each number of pieces interval; Based on the slope-number of wafers relationship curve, determine the slope abrupt change point, and take the upper limit of the wafer number interval corresponding to the slope abrupt change point as the maximum allowable number of wafers to be assembled in a single stack. Based on the required power and the rated power of a single cell, determine the total number of cells required. Based on the total number of cells required and the maximum allowable number of cells to be assembled per stack, determine the required number of stacks and the number of cells per stack.

[0006] As an alternative implementation, the process of determining the slope inflection point includes: plotting a slope-number of slices curve with the number of slices as the horizontal axis and the slope as the vertical axis; performing second derivative analysis on the curve; and defining the first position where the curvature change exceeds a set threshold as the slope inflection point.

[0007] As an alternative implementation, the total number of cells required is the ratio of the required power to the rated power of a single cell.

[0008] As an alternative implementation, the process of determining the required number of fuel cell stacks includes: using the maximum allowable number of assemblies per fuel cell stack as a constraint, starting from the number of fuel cell stacks n=1, calculating the number of assemblies per fuel cell stack, and determining the number of assemblies per fuel cell stack. If the constraints are not met, let n = n + 1 and continue iteratively calculating the number of single-cell stack plates. The required number of fuel cells is obtained after the constraints are met.

[0009] As an alternative implementation, the number of single fuel cell stacks is the ratio of the total number of stacks required to the total number of stacks.

[0010] As an alternative implementation, the constraint that the number of individual electrode stacks must satisfy is that the number of individual electrode stacks is less than or equal to the maximum allowable number of individual electrode stacks.

[0011] In a second aspect, the present invention provides a system for determining the number of battery stack plates, comprising: The acquisition module is configured to acquire test data on the voltage of a single cell corresponding to different numbers of cells in the fuel cell stack under different current densities. The fitting module is configured to group the experimental data by the number of pieces interval, perform linear fitting on the experimental data within each number of pieces interval, and obtain the slope of each number of pieces interval; The analysis module is configured to determine the slope abrupt change point based on the slope-number of wafers relationship curve, and use the upper limit of the wafer number interval corresponding to the slope abrupt change point as the maximum allowable number of wafers to be assembled in a single stack. The planning module is configured to determine the total number of cells required based on the demand power and the rated power of a single cell, and to determine the required number of fuel cells and the number of cells per fuel cell stack based on the total number of cells required and the maximum allowable number of cells per stack.

[0012] Thirdly, the present invention provides an electronic device including a memory and a processor, and computer instructions stored in the memory and running on the processor, wherein the computer instructions, when executed by the processor, perform the method described in the first aspect.

[0013] Fourthly, the present invention provides a computer-readable storage medium for storing computer instructions, which, when executed by a processor, perform the method described in the first aspect.

[0014] Fifthly, the present invention provides a computer program product, including a computer program that, when executed by a processor, implements the method described in the first aspect.

[0015] In a sixth aspect, the present invention provides a fuel cell in which a stack configuration is obtained by means of the method described in the first aspect.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention proposes a method for determining the number of fuel cell stack cells. By testing the stack polarization curves under different current density conditions, the average single-cell voltage value corresponding to different numbers of stack cells is extracted. This voltage is then used to obtain the polarization characteristic change rate parameter (i.e., the slope of each cell number interval) through linear fitting. A cell number-slope relationship curve is then established, and characteristic abrupt change points are identified. These abrupt change points are used to determine the maximum allowable number of cells that can be assembled in a single stack. This method avoids the tedious process of repeated experiments required by traditional methods, significantly improving design efficiency. It is applicable to different types of fuel cell stacks and has broad applicability. When user power demand is too high and a single stack cannot meet the demand, the maximum allowable number of cells that can be assembled in a single stack is used as a constraint. A standardized iterative algorithm is employed to optimize the stack configuration scheme, fundamentally ensuring that each stack operates within its optimal performance range. This satisfies high power output requirements while guaranteeing the high efficiency and reliability of the entire fuel cell system. Simultaneously, cost optimization is achieved with the minimum number of stacks, providing theoretical support and practical guidance for the optimized design of fuel cell systems.

[0017] Advantages of additional aspects of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0019] Figure 1 This is a flowchart of the method for determining the number of fuel cell stacks provided in Embodiment 1 of the present invention; Figure 2 This is a flowchart illustrating the determination of the maximum allowable number of assembly pieces for a single fuel cell stack according to Embodiment 1 of the present invention. Figure 3 This is a flowchart illustrating the determination of the multi-pile parallel connection scheme provided in Embodiment 1 of the present invention. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] It should be noted that the following detailed descriptions are exemplary and intended to provide further illustration of the invention. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0022] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of exemplary embodiments according to the invention. As used herein, unless the context clearly indicates otherwise, the singular form is intended to include the plural form as well. Furthermore, it should be understood that the terms “comprising” and “including”, and any variations thereof, are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or apparatus that includes a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0023] Where there is no conflict, the embodiments and features in the embodiments of the present invention can be combined with each other.

[0024] A fuel cell stack is an electrochemical device that directly converts the chemical energy of externally supplied fuel and oxidant into electrical energy (direct current) and generates heat and reaction products.

[0025] In the design and practical application of fuel cell stacks, the rational determination of the number of stack plates is a core technical issue, which is directly related to the power output, energy efficiency and overall economy of the fuel cell system.

[0026] Having too many or too few fuel cell stacks can significantly impact their performance, cost, and efficiency. Specifically, too many stacks lead to a significant increase in the stack's size and mass, raising manufacturing costs. Furthermore, an excessive number of stacks can cause performance degradation in downstream individual cells, the core mechanism of which is the uneven distribution of reactant gases due to the elongation of the common flow channel.

[0027] As the number of fuel cell stacks increases, the length of the common flow channel through which the reactant gases (including hydrogen and air) flow becomes significantly longer. This increased flow channel length leads to increased frictional resistance and a non-negligible pressure loss. This pressure loss creates a significant pressure gradient within the common flow channel. This gradient ensures that the cells at the front of the channel receive sufficient reactant gas flow and pressure to maintain normal operation, while the cells at the rear of the channel experience insufficient reactant gas supply and lower pressure due to the pressure gradient, ultimately resulting in performance degradation.

[0028] The uneven distribution of the reactant gases described above will have multiple negative effects on the rear electrode plate (i.e., the single cell near the end of the common flow channel), as follows: 1. Insufficient reactant concentration: Reduced gas flow rate leads to a decrease in reactant concentration on the electrode surface, exacerbating concentration polarization, which in turn reduces the electrochemical reaction rate and decreases the output voltage and current density.

[0029] 2. Imbalance in Hydrothermal Management: Hydrothermal management is a core technology in fuel cell systems, referring to the coordinated control and optimization of moisture and temperature within the stack. Insufficient airflow weakens the cathode's purging ability, making it difficult for generated water to drain, potentially causing electrode flooding and hindering gas diffusion. Simultaneously, uneven reaction can also lead to localized heat dissipation difficulties, causing overheating and accelerating material aging.

[0030] 3. Performance and lifespan degradation: The combined effect of the above factors means that the single cells in the later stages of the fuel cell stack are under conditions of reactant scarcity and harsh hydrothermal conditions during actual operation. Their output performance will be significantly lower than that of the cells in the earlier stages, and they are more prone to degradation, thus restricting the stability and lifespan of the entire fuel cell stack.

[0031] Currently, there is still a lack of an effective and accurate method to determine the limit value of the number of fuel cell stack segments. Therefore, this invention provides a method for determining the number of fuel cell stack segments based on voltage-segment count curve fitting. By analyzing the average single-segment voltage data of fuel cell stacks with different segment counts, the maximum allowable number of segments that can be assembled in a single fuel cell stack is determined. Furthermore, when the user's power demand is too high and a single fuel cell stack cannot meet the demand, the maximum allowable number of segments per fuel cell stack is used as a constraint to optimize the fuel cell stack configuration scheme through a standardized iterative algorithm, thereby ensuring that each fuel cell stack can operate within a highly efficient and reliable range. This method can quickly and accurately determine the optimal range of fuel cell stack segment counts, thereby optimizing fuel cell stack design, improving fuel cell stack performance, reducing R&D costs, shortening the development cycle, and providing theoretical support and practical guidance for the optimized design of fuel cell systems, thus promoting the further development of fuel cell technology.

[0032] Example 1 like Figure 1 As shown, this embodiment provides a method for determining the number of fuel cell stack plates, including: S1: Obtain experimental data on the voltage of a single cell for different numbers of cells under different current densities; S2: Group the experimental data according to the number of pieces interval, perform linear fitting on the experimental data in each number of pieces interval, and obtain the slope of each number of pieces interval; S3: Based on the slope-number of wafers relationship curve, determine the slope abrupt change point, and take the upper limit of the wafer number interval corresponding to the slope abrupt change point as the maximum allowable number of wafers to be assembled in a single stack. S4: Determine the total number of cells required based on the required power and the rated power of a single cell. Determine the required number of fuel cells and the number of cells per fuel cell stack based on the total number of cells required and the maximum allowable number of cells per stack.

[0033] In this embodiment, the scheme is mainly divided into two parts: first, determining the maximum number of assemblies allowed in a single fuel cell stack; and second, determining a multi-fuel cell stack parallel connection scheme when the power of a single fuel cell stack cannot meet the requirements.

[0034] like Figure 2 The diagram shows the main process for determining the maximum allowable number of components to be assembled in a single fuel cell stack, which includes the following:

[0035] In step S1, firstly, a relatively long fuel cell stack is assembled, with a sufficient number of cells to cover the range of the maximum permissible number of cells that can be assembled.

[0036] Then, the performance of the fuel cell stack was tested at different current densities (e.g., 0.1 A / cm², 0.2 A / cm², 0.3 A / cm², etc.); that is, the experimental data of the single cell voltage corresponding to different numbers of cells in the fuel cell stack at different current densities. In step S2, the test data are grouped according to the number of cells (e.g., 1-20 cells, 1-40 cells, 1-60 cells, etc.); the voltage of a single cell in each cell number interval is linearly fitted with the corresponding number of cells to obtain the slope of each cell number interval.

[0037] For example, for experimental data of 1-20 pieces, the slope m1 is obtained by fitting; for experimental data of 1-40 pieces, the slope m2 is obtained by fitting, and so on.

[0038] In step S3, a slope-number of slices relationship curve is plotted to analyze the slope abrupt change points in the relationship curve.

[0039] Specifically, it includes: (1) Plot the slopes corresponding to different number of pieces in the coordinate system with the number of pieces as the horizontal axis and the slope as the vertical axis.

[0040] (2) Analyze the trend of slope change. If the change in absolute value of slope is less than the set change threshold, that is, there is no significant increase, then re-divide the number of pieces interval or supplement more experimental data to increase the number of data points; otherwise, proceed to step (3).

[0041] (3) By performing second derivative analysis on the relationship curve, the slope mutation point is identified, and the first position where the curvature change exceeds the set threshold is defined as the slope mutation point, i.e. the critical point of the optimal number of slices.

[0042] Before the point of abrupt change in slope, the slope changes relatively gently, indicating that the performance of the fuel cell stack is not sensitive to changes in the number of plates. After the abrupt change in slope, the slope change increases significantly, indicating that the performance of the fuel cell stack is more sensitive to changes in the number of wafers.

[0043] Therefore, the upper limit of the number of wafers interval corresponding to the slope abrupt change point is the maximum allowable number of wafers to be assembled in a single stack.

[0044] Thus, by using data fitting and mutation point analysis, the limit value of the number of fuel cell stacks can be quickly determined, avoiding the tedious process of repeated experiments in traditional methods and significantly improving design efficiency.

[0045] In the design of fuel cell systems, the maximum allowable number of fuel cell stacks is... To determine its maximum output power, when the power of a single fuel cell stack cannot meet the demand, it is necessary to calculate and determine a multi-stack parallel connection scheme. For example... Figure 3 As shown, it specifically includes the following content.

[0046] (1) Based on the required power P user and single battery rated power Determine the total number of pieces required. :

[0047] (2) Initialize the number of fuel cells n=1.

[0048] (3) Calculate the number of single stack plates :

[0049] (4) Starting from n=1, determine the number of individual charge stack plates. Is it less than or equal to the maximum allowable number of assembly pieces per single fuel cell stack? If the conditions are not met Then let n = n + 1, and continue iteratively calculating the number of single stack plates. until the conditions are met. .

[0050] (5) Under the condition of meeting Based on this, determine the minimum number of fuel cell stacks. and the corresponding number of individual stack plates This yields a configuration scheme for the required number of fuel cell stacks and the number of cells per stack, i.e., using... Several parallel stacks, each stack loaded with Single battery cell, common output power .

[0051] The performance of a fuel cell stack is closely related to the number of cells. Increasing the number of cells usually improves the overall voltage and power output, but as the number of cells becomes too large, the voltage of a single cell will gradually decrease due to factors such as contact resistance and uneven gas distribution.

[0052] Therefore, under the premise of keeping the testing conditions consistent under different current densities, this embodiment extracts the average single-cell voltage characteristic value corresponding to different numbers of cells by testing the stack polarization curves under different current density conditions; constructs a voltage-cell number distribution mathematical model, solves its first derivative to obtain the polarization characteristic change rate parameter (i.e., slope); on this basis, establishes a cell number-slope relationship curve, identifies the characteristic abrupt change point in the curve, and the horizontal coordinate corresponding to the abrupt change point is the maximum allowable number of cells to be assembled.

[0053] If the user's power requirement is too high, by taking the maximum allowable number of assembly pieces as the core constraint and using a standardized iterative algorithm for fuel cell stack configuration, it is fundamentally ensured that each fuel cell stack operates within a high-efficiency and reliable range. While meeting the high power requirement, cost optimization can be achieved with the minimum number of fuel cell stacks.

[0054] Example 2 This embodiment provides a system for determining the number of battery stack plates, including: The acquisition module is configured to acquire test data on the voltage of a single cell corresponding to different numbers of cells in the fuel cell stack under different current densities. The fitting module is configured to group the experimental data by the number of pieces interval, perform linear fitting on the experimental data within each number of pieces interval, and obtain the slope of each number of pieces interval; The analysis module is configured to determine the slope abrupt change point based on the slope-number of wafers relationship curve, and use the upper limit of the wafer number interval corresponding to the slope abrupt change point as the maximum allowable number of wafers to be assembled in a single stack. The planning module is configured to determine the total number of cells required based on the demand power and the rated power of a single cell, and to determine the required number of fuel cells and the number of cells per fuel cell stack based on the total number of cells required and the maximum allowable number of cells per stack.

[0055] It should be noted that the above modules correspond to the steps described in Embodiment 1, and the examples and application scenarios implemented by the above modules and the corresponding steps are the same, but are not limited to the content disclosed in Embodiment 1. It should also be noted that the above modules, as part of the system, can be executed in a computer system such as a set of computer-executable instructions.

[0056] In further embodiments, the following is also provided: A fuel cell, wherein the stack configuration is obtained by means of the method described in Example 1.

[0057] An electronic device includes a memory and a processor, as well as computer instructions stored in the memory and running on the processor, wherein the computer instructions, when executed by the processor, perform the method described in Embodiment 1. For brevity, further details are omitted here.

[0058] It should be understood that in this embodiment, the processor can be a central processing unit (CPU), or it can be other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor can be a microprocessor or any conventional processor, etc.

[0059] Memory may include read-only memory and random access memory, and provides instructions and data to the processor. A portion of memory may also include non-volatile random access memory. For example, memory may also store information about the device type.

[0060] A computer-readable storage medium for storing computer instructions, which, when executed by a processor, perform the method described in Embodiment 1.

[0061] The method in Example 1 can be directly implemented by a hardware processor, or implemented by a combination of hardware and software modules within the processor. The software modules can reside in readily available storage media in the field, such as random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, or registers. This storage medium is located in memory, and the processor reads information from the memory and, in conjunction with its hardware, completes the steps of the above method. To avoid repetition, a detailed description is not provided here.

[0062] A computer program product includes a computer program that, when executed by a processor, implements the method described in Embodiment 1.

[0063] The present invention also provides at least one computer program product tangibly stored on a non-transitory computer-readable storage medium. The computer program product includes computer-executable instructions, such as instructions included in program modules, which execute in a device on a target real or virtual processor to perform the processes / methods described above. Typically, program modules include routines, programs, libraries, objects, classes, components, data structures, etc., that perform specific tasks or implement specific abstract data types. In various embodiments, the functionality of program modules can be combined or divided among program modules as needed. The machine-executable instructions for the program modules can execute within a local or distributed device. In a distributed device, the program modules can reside in both local and remote storage media.

[0064] The computer program code used to implement the methods of the present invention may be written in one or more programming languages. This computer program code may be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, such that when executed by the computer or other programmable data processing device, the program code causes the functions / operations specified in the flowcharts and / or block diagrams to be implemented. The program code may be executed entirely on a computer, partially on a computer, as a stand-alone software package, partially on a computer and partially on a remote computer, or entirely on a remote computer or server.

[0065] In the context of this invention, computer program code or related data may be carried by any suitable carrier to enable a device, apparatus, or processor to perform the various processes and operations described above. Examples of carriers include signals, computer-readable media, and the like. Examples of signals may include electrical, optical, radio, sound, or other forms of propagation signals, such as carrier waves, infrared signals, etc.

[0066] Those skilled in the art will recognize that the units and algorithm steps described in connection with the various examples of this embodiment can be implemented in electronic hardware or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this invention.

[0067] While the specific embodiments of the present invention have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the present invention. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without creative effort based on the technical solutions of the present invention are still within the scope of protection of the present invention.

Claims

1. A method for determining the number of fuel cell stack plates, characterized in that, include: To obtain experimental data on the voltage of a single cell corresponding to different numbers of cells in the fuel cell stack under different current densities; The experimental data were grouped according to the number of pieces, and linear fitting was performed on the experimental data within each number of pieces interval to obtain the slope of each number of pieces interval; Based on the slope-number of wafers relationship curve, determine the slope abrupt change point, and take the upper limit of the wafer number interval corresponding to the slope abrupt change point as the maximum allowable number of wafers to be assembled in a single stack. Based on the required power and the rated power of a single cell, determine the total number of cells required. Based on the total number of cells required and the maximum allowable number of cells to be assembled per stack, determine the required number of stacks and the number of cells per stack.

2. The method for determining the number of fuel cell stack plates as described in claim 1, characterized in that, The process of determining the slope inflection point includes: plotting the slope-number of slices curve with the number of slices as the horizontal axis and the slope as the vertical axis; performing second derivative analysis on the curve; and defining the first position where the curvature change exceeds a set threshold as the slope inflection point.

3. The method for determining the number of fuel cell stack plates as described in claim 1, characterized in that, The total number of cells required is the ratio of the required power to the rated power of a single cell.

4. The method for determining the number of fuel cell stack plates as described in claim 1, characterized in that, The process of determining the required number of fuel cell stacks includes: using the maximum allowable number of wafers per stack as a constraint, starting with the number of fuel cell stacks n=1, calculating the number of wafers per stack, and determining the number of wafers per stack. If the constraints are not met, let n = n + 1 and continue iteratively calculating the number of single-cell stack plates. The required number of fuel cells is obtained after the constraints are met.

5. The method for determining the number of fuel cell stack plates as described in claim 4, characterized in that, The number of individual fuel cell stacks is the ratio of the total number of stacks required to the total number of stacks. The constraint that the number of individual stack pieces must satisfy is that the number of individual stack pieces is less than or equal to the maximum allowable number of individual stack pieces.

6. A system for determining the number of fuel cell stack plates, characterized in that, include: The acquisition module is configured to acquire test data on the voltage of a single cell corresponding to different numbers of cells in the fuel cell stack under different current densities. The fitting module is configured to group the experimental data by the number of pieces interval, perform linear fitting on the experimental data within each number of pieces interval, and obtain the slope of each number of pieces interval; The analysis module is configured to determine the slope abrupt change point based on the slope-number of wafers relationship curve, and use the upper limit of the wafer number interval corresponding to the slope abrupt change point as the maximum allowable number of wafers to be assembled in a single stack. The planning module is configured to determine the total number of cells required based on the demand power and the rated power of a single cell, and to determine the required number of fuel cells and the number of cells per fuel cell stack based on the total number of cells required and the maximum allowable number of cells per stack.

7. An electronic device, characterized in that, It includes a memory and a processor, as well as computer instructions stored in the memory and running on the processor, which, when executed by the processor, perform the method according to any one of claims 1-5.

8. A computer-readable storage medium, characterized in that, Used to store computer instructions, which, when executed by a processor, perform the method described in any one of claims 1-5.

9. A computer program product, characterized in that, Includes a computer program, which, when executed by a processor, implements the method described in any one of claims 1-5.

10. A fuel cell, characterized in that, The fuel cell uses the method described in any one of claims 1-5 to obtain the stack configuration scheme.

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