KR100709257B1 - Fuel supply apparatus and fuel cell system with the same - Google Patents

Abstract

A fuel cell system according to an embodiment of the present invention, at least one fuel cell for generating electrical energy by the reaction of fuel and oxygen, a fuel supply device for supplying the fuel to the fuel cell, and the oxygen And an oxygen supply device for supplying a fuel cell, wherein the fuel supply device includes a fuel storage container having a storage space for storing the fuel and a fuel discharge portion for discharging the fuel as a porous member.

Fuel cell, fuel supply device, oxygen supply device, fuel discharge part, porous member

Description

FUEL SUPPLY APPARATUS AND FUEL CELL SYSTEM WITH THE SAME}

1 is a cross-sectional view schematically showing the configuration of a fuel cell system according to a first embodiment of the present invention.

2 is a perspective view showing an exemplary embodiment of the fuel supply device shown in FIG.

3 is a cross-sectional view of FIG. 2.

4 is a cross-sectional view schematically illustrating a configuration of a fuel cell system according to a second embodiment of the present invention.

FIG. 5 is a cross-sectional view schematically illustrating a configuration of a fuel cell system according to a third embodiment of the present invention.

6 is a schematic structural diagram of a fuel cell system according to a fourth embodiment of the present invention.

The present invention relates to a fuel cell system, and more particularly, to a fuel supply device for supplying fuel to a reformer or a fuel cell.

As is known, a fuel cell system is configured as a power generation system that generates electric energy by oxidation reaction of hydrogen contained in hydrocarbon-based fuel and reduction reaction of oxygen.

Such a fuel cell system can be broadly classified into a polymer electrolyte fuel cell method and a direct oxidation fuel cell method. Herein, the polymer electrolyte fuel cell receives hydrogen generated by reforming fuel and generates electrical energy through an electrochemical reaction between the hydrogen and oxygen. The direct oxidation fuel cell receives fuel directly and generates electrical energy through an electrochemical reaction between hydrogen contained in the fuel and oxygen supplied separately.

The polymer electrolyte fuel cell system includes a reformer for generating hydrogen by reforming fuel and supplying the hydrogen to the fuel cell, a fuel supply device for supplying fuel to the reformer, and an oxygen supply device for supplying oxygen to the fuel cell. It is configured to include.

Unlike the polymer electrolyte fuel cell system, the direct oxidation fuel cell system does not require a reformer, and includes a fuel supply unit for supplying fuel directly to the fuel cell and an oxygen supply unit for supplying oxygen to the fuel cell. It is configured to include.

Here, the direct oxidation type fuel cell is a passive type fuel cell that generates electric energy by receiving fuel and oxygen without depending on a pump or a fan, and receives fuel and oxygen by driving power of the pump or fan. It can be classified as an active type fuel cell that generates energy.

By the way, in the conventional fuel cell system constituted by the direct oxidation fuel cell method, in particular the passive fuel cell method, the fuel supply device is a structure for supplying fuel stored in a predetermined fuel storage container to the fuel cell by a simple gravity action. The bar has a problem that the smooth supply of fuel to the fuel cell is not made, and as a result, the efficiency of the fuel cell is lowered.

In addition, in a conventional fuel cell system composed of a direct oxidation fuel cell system, particularly an active fuel cell system and a polymer electrolyte fuel cell system, a fuel supply device includes a fuel pump for supplying fuel to a fuel cell or a reformer. In addition, as the parasitic power and noise for driving the fuel pump are increased, there is a problem in that performance and energy efficiency of the entire system are deteriorated.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problems, and an object thereof is to provide a smooth supply of fuel to a fuel cell in the case of a passive fuel cell method, and to consume power of a fuel pump in the case of an active fuel cell and a polymer electrolyte fuel cell method. And a fuel supply device capable of reducing noise and a fuel cell system including the same.

In order to achieve the above object, a fuel supply device according to an embodiment of the present invention, a fuel cell for generating electrical energy by the reaction of a fuel and oxygen, or to reform the fuel to generate a reforming gas containing hydrogen. A fuel storage container for supplying the fuel to a reformer, the fuel storage container having a storage space for storing the fuel, wherein the fuel storage container has a fuel discharge part for discharging the fuel. The fuel discharge portion is configured as a porous member for absorbing the fuel.

In the fuel supply device, one side of the fuel storage container may be configured as the fuel discharge part. In this case, the fuel supply device may be configured such that the fuel discharge portion is in close contact with the fuel cell.

The fuel supply device, the porous member may be formed as any one porous medium selected from the group consisting of a ceramic, a foam sponge and a metal foam.

The fuel supply device may include a collecting member installed in the fuel storage container to collect the fuel discharged from the fuel discharge unit and supply the fuel to the fuel cell or the reformer.

The fuel supply device may include a collecting member installed in the fuel storage container to collect the fuel discharged from the fuel discharge unit, and connected to the collecting member to suck the fuel and supply the fuel to the fuel cell or the reformer. It may include a fuel pump for supplying.

The fuel supply device, the fuel reservoir may be in the form of a cartridge.

In addition, a fuel cell system according to an exemplary embodiment of the present invention, at least one fuel cell for generating electrical energy by the reaction of fuel and oxygen, a fuel supply device for supplying the fuel to the fuel cell; And an oxygen supply device for supplying the oxygen to the fuel cell, wherein the fuel supply device includes a fuel storage container having a storage space for storing the fuel and a fuel discharge portion for discharging the fuel as a porous member. do.

In the fuel cell system, the fuel reservoir is in the form of a cartridge, one side of which may be configured as the fuel discharge portion.

In the fuel cell system, the fuel cell may be configured by placing the separator in close contact with both sides of the membrane-electrode assembly.

The fuel cell system may be configured such that the porous member and the one side separator are in close contact with each other.

In the fuel cell system, the fuel supply device may include a collecting member installed in the fuel storage container to collect the fuel discharged from the fuel discharge unit and supply the fuel to the fuel cell.

In the fuel cell system, the fuel supply device is installed in the fuel storage container and the collecting member for collecting the fuel discharged from the fuel discharge portion, disposed between the collecting member and the fuel cell to suck the fuel And it may include a fuel pump for supplying the fuel to the fuel cell.

In the fuel cell system, the oxygen supply device may be configured as the other side separator having a plurality of vent holes.

In the fuel cell system, the oxygen supply device is configured as the other side separator having a plurality of vent holes, and may include a fan for blowing air to the other side separator.

In the fuel cell system according to the present embodiment configured as described above, the fuel cell may be configured as a direct oxidation fuel cell.

In addition, the fuel cell system according to another exemplary embodiment of the present invention, at least one fuel cell for generating electrical energy by the reaction of hydrogen and oxygen, and reforming the fuel to generate the reformed gas containing hydrogen And a reformer for supplying the reformed gas to the fuel cell, a fuel supply device for supplying the fuel to the reformer, and an oxygen supply device for supplying the oxygen to the fuel cell. Comprising a cartridge having a storage space for storing the fuel discharge portion for discharging the fuel is provided with a fuel container formed as a porous member.

In the fuel cell system, one side of the fuel storage container may be configured as the fuel discharge unit.

In the fuel cell system, the fuel supply device may include a collecting member installed in the fuel storage container to collect the fuel discharged from the fuel discharge unit.

In the fuel cell system, the fuel supply device may include a fuel pump disposed between the collecting member and the reformer to suck the fuel and supply the fuel to the reformer.

The fuel cell system may include a plurality of the fuel cells, and may be continuously arranged to form a stack having an aggregate structure of the fuel cells.

The fuel cell system may include an air pump that sucks air and supplies the air to the stack.

In the fuel cell system according to the present embodiment configured as described above, the fuel cell may be configured as a polymer electrolyte fuel cell.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention.

1 is a cross-sectional view schematically showing the configuration of a fuel cell system according to a first embodiment of the present invention.

Referring to the fuel cell system 100 according to an embodiment of the present invention with reference to the drawings, the fuel cell system 100 using a hydrogen-containing fuel and oxygen, notebook PC, PDA, mobile communication terminal, etc. It is configured as a power generation system for providing electrical energy to such portable electronic devices.

More specifically, the system 100 is a direct oxidation type fuel that is directly supplied with a liquid fuel such as methanol to generate electrical energy by oxidation of hydrogen contained in the liquid fuel, and reduction reaction of oxygen provided separately. It may be configured as a battery (Direct Oxydation Fuel Cell) method. In particular, the system 100 may be configured as a passive type fuel cell system in which fuel and oxygen are supplied to generate electric energy without depending on a pump or a fan, depending on the type of configuration of the direct oxidation fuel cell. Can be.

The fuel cell system 100 according to the embodiment of the present invention as described above has a direct oxidation fuel cell 10 and a fuel supply device 30 for supplying fuel to the fuel cell 10. And an oxygen supply device 50 for supplying oxygen to the fuel cell 10.

The fuel cell 10 may be configured by closely placing separators 16a and 16b on both sides of a membrane-electrode assembly 12.

The membrane-electrode assembly 12 forms an anode electrode on one side, a cathode electrode on the other side, and forms an electrolyte membrane between these two electrodes. The anode electrode separates the hydrogen contained in the fuel into electrons and hydrogen ions, the electrolyte membrane moves the hydrogen ions to the cathode electrode, and the cathode electrode reacts with the electrons, hydrogen ions, and oxygen provided separately from the anode electrode to react with moisture. It will create a function.

The separators 16a and 16b function as a conductor that connects the anode electrode and the cathode electrode in series in addition to the function of distributing fuel and oxygen to the membrane electrode assembly 12. .

In this embodiment, the separator 16a (hereinafter referred to as "first separator") in close contact with the anode electrode of the membrane-electrode assembly 12 distributes the fuel supplied from the fuel supply device 30 to the anode electrode. For the purpose, it consists of a plate type which forms the several hole 16c. The separator 16b (hereinafter referred to as a "second separator") in close contact with the cathode electrode of the membrane-electrode assembly 12 is for dispersing oxygen to the cathode electrode, and forms a plurality of vent holes 16d. It consists of a plate type.

Since the configuration of the fuel cell 10 can be made of a conventional direct oxidation fuel cell, in particular, a passive fuel cell, a detailed description thereof will be omitted.

In the present embodiment, as shown in the figure, a system having a single fuel cell 10 for generating electrical energy of a predetermined capacity by electrochemical reaction of fuel and oxygen by the fuel cell 10. Can be configured. However, the present invention is not limited thereto, and may include a plurality of fuel cells 10 and electrically connect them to constitute a system for generating electrical energy by reaction of fuel and oxygen by these fuel cells 10. have.

In this embodiment, the fuel supply device 30 is arranged in close contact with the fuel cell 10, and has a structure capable of supplying fuel to the fuel cell 10 under no load without depending on the driving force of the pump as in the prior art. . The configuration of the fuel supply device 30 will be described later with reference to FIGS. 2 and 3.

In addition, the oxygen supply device 50 for supplying oxygen to the fuel cell 10 includes a second separator in which the fuel cell 10 has a passive type, and forms a plurality of vent holes 16d. 16b is provided by itself and serves to distribute and supply air to the cathode electrode of the membrane-electrode assembly 12 through the vent 16d of the second separator 16b by using the natural convection of air. .

2 is a perspective view illustrating an exemplary embodiment of the fuel supply device illustrated in FIG. 1, and FIG. 3 is a cross-sectional view of FIG. 2.

Referring to the drawings, the fuel supply device 30 according to an embodiment of the present invention has a structure that can store the fuel of a predetermined capacity, and discharge the fuel by the capillary action in the no-load state.

The fuel supply device 30 has a storage space 31a for storing fuel and is provided with a fuel storage container 31 having a case shape. The fuel storage container 31 is provided in the storage space 31a. A fuel discharge portion 31b for discharging the stored fuel is formed. Preferably, the fuel reservoir 31 is provided in the form of a conventional cartridge detachable to a battery case (not shown) constituting the appearance of the fuel cell system 100 (FIG. 1).

Specifically, the fuel storage container 31 according to the present embodiment is formed in the shape of a cube-shaped case in close contact with the first separator 16a of the fuel cell 10. Such a fuel storage container 31 is configured as the fuel discharge part 31b, which one surface is mentioned, and the storage space 31a as described above is configured as the case member 32 except for the surface. Can be formed. Here, the case member 32 is formed as a box shape in which one surface of the hexahedron is opened.

In this embodiment, the fuel discharge portion 31b corresponding to one side of the fuel storage container 31 absorbs the fuel contained in the storage space 31a of the fuel storage container 31, and absorbs the fuel by capillary action. It is comprised as the porous member 33 which discharges. At this time, the porous member 33 is coupled to the open end of the case member 32 to be in close contact with the first separator 16a of the fuel cell 10 shown in FIG.

The porous member 33 is a conventional porous medium that can easily absorb the liquid fuel stored in the storage space 31a of the fuel storage container 31 by capillary action, for example, ceramics, limestone, It consists of activated carbon, foam sponge or metal foam. Preferably, the porous member 33 according to the present embodiment may be formed as a metal foam made of a conventional sintered alloy material.

Thus, as the porous member 33 is coupled to the open end of the case member 32 and constitutes the fuel discharge portion 31b, the porous member 33 has a predetermined volume of storage space 31a for storing fuel, It is possible to form the fuel storage container 31 according to the present embodiment in which the fuel contained in 31a) can be discharged by the capillary action of the porous member 33.

According to the fuel cell system 100 according to the embodiment of the present invention configured as described above, the porous member 33 of the fuel storage container 31 is disposed in close contact with the first separator 16a of the fuel cell 10. The fuel cell 10 is in a state located below the fuel storage container 31.

In this state, the fuel stored in the storage space 31a of the fuel storage container 31 is discharged through the fuel discharge part 31b by the capillary action of the porous member 33, and the hole of the first separator 16a. Through 16c, the membrane-electrode assembly 12 is distributedly supplied. At this time, the fuel discharged through the porous member 33, since the fuel cell 10 is located below the fuel storage container 31, to the holes (16c) of the first separator (16a) by gravity action. It can be easily flowed.

During this process, air in the atmosphere is distributed and supplied to the membrane-electrode assembly 12 through the vent 16d of the second separator 16b by natural convection.

Therefore, the fuel cell 10 outputs electric energy of a predetermined capacity through the electrochemical reaction of hydrogen contained in the fuel and oxygen contained in the air.

4 is a cross-sectional view schematically illustrating a configuration of a fuel cell system according to a second embodiment of the present invention.

Referring to the drawings, the fuel cell system 200 according to the present exemplary embodiment includes a fuel supply device 130 capable of collecting fuel discharged from the fuel storage container 131 and supplying the fuel to the fuel cell 110. Can be configured.

The fuel supply device 130 has a collecting member 135 which is installed to be connected to the fuel discharge portion 131b of the fuel storage container 131 while having the fuel storage container 131 as in the electric embodiment. have. The collecting member 135 collects fuel discharged through the porous member 133 and supplies the fuel to the fuel cell 110.

Specifically, the collecting member 135 is installed to be connected to the case member 132 of the fuel storage container 131, preferably connected to the open end edge portion of the case member 132 in which the porous member 133 is installed. do.

The collecting member 135 includes a body 135a having a shape corresponding to the case member 132, and the body 135a forms a collecting surface disposed in parallel with the porous member 133. At the collecting surface, at least one discharge hole 135b for discharging the fuel collected in the body 135a is formed. At this time, the discharge hole (135b) is formed in the substantially center portion of the body (135a), it may be formed in the edge portion of the body (135a). The discharge hole 135b and the fuel cell 110 may be connected by a conventional pipeline.

As an alternative, the collecting member 135 according to the present invention is not limited to such a shape, and may be modified in various forms such as a funnel shape in which the cross-sectional area gradually decreases away from the porous member 133.

In this embodiment, the fuel cell 110 is configured as the first separator 116a and the second separator 116b which are disposed on both sides of the membrane-electrode assembly 112 as in the electric embodiment. Can be.

Here, the first separator 116a is configured as a conventional separator having a channel 116c to enable the flow of fuel, and is connected to the discharge hole 135b of the collecting member 135 by a pipeline, and the channel forming surface The film-electrode assembly 112 is disposed in close contact. The second separator 116b has the same structure as in the previous embodiment.

According to the fuel cell system 200 according to the present exemplary embodiment configured as described above, the discharge hole 135b of the collecting member 135 and the channel 116c of the first separator 116a are connected by a pipeline, The fuel cell 110 is in a state located below the collecting member 135.

In this state, the fuel stored in the storage space 131a of the fuel storage container 131 is discharged through the fuel discharge part 131b by the capillary action of the porous member 133, and the body 135a of the collecting member 135. Will be captured). The fuel is supplied to the membrane-electrode assembly 112 through the channel 116c of the first separator 116a while being discharged through the discharge hole 135b of the collecting member 135. At this time, the fuel discharged through the discharge hole 135b of the collecting member 135 is located at the lower side of the collecting member 135 so that the channel of the first separator 116a is driven by gravity. It can be easily flowed to 116c.

During this process, air in the atmosphere is distributed and supplied to the membrane-electrode assembly 112 through the vent 116d of the second separator 116b by natural convection.

Therefore, the fuel cell 110 outputs electrical energy of a predetermined capacity through the electrochemical reaction of hydrogen contained in the fuel and oxygen contained in the air.

FIG. 5 is a cross-sectional view schematically illustrating a configuration of a fuel cell system according to a third embodiment of the present invention.

Referring to the drawings, the fuel cell system 300 according to the present embodiment is based on the structure of the electrical embodiment, the fuel supply device is disposed between the collecting member 235 and the fuel cell 210 fuel pump 237 230 may be configured.

The fuel cell system 300 supplies fuel and oxygen to the fuel cell 210 by a direct oxidation fuel cell method, in particular, a driving force of a pump and a fan, thereby electrochemically treating the fuel and oxygen. It can be configured as an active type fuel cell system that generates electrical energy by phosphorus reaction.

In the present embodiment, the fuel pump 237 is installed on the pipeline connecting the discharge hole 235b of the collecting member 235 and the first separator 216a of the fuel cell 210, and thus the fuel storage container ( The fuel stored in 231 is sucked at a predetermined pumping pressure, and the fuel is supplied to the first separator 216a.

The fuel cell system 300 includes the fuel cell 210 having the same structure as in the electric embodiment, and the oxygen supply device 250 for supplying air to the air vent 216d of the second separator 216b. It further includes.

The oxygen supply device 250 is provided in a housing 211 surrounding the fuel cell 210 and includes a fan 251 for supplying air to the vent hole 216d of the second separator 216b.

According to the fuel cell system 300 according to the embodiment of the present invention configured as described above, the fuel stored in the storage space 231a of the fuel storage container 231 is in a state absorbed by the porous member 233.

In this state, the fuel pump 237 sucks the fuel absorbed into the porous member 233 by a predetermined pumping pressure. At this time, the fuel is discharged through the porous member 233 is collected in the body 235a of the collecting member 235, and discharged through the discharge hole 235b of the collecting member 235 of the fuel cell 210 It is supplied to the 1st separator 216a.

Therefore, the fuel flows along the channel 216c of the first separator 216a and is distributed and supplied to the membrane-electrode assembly 212.

At the same time, the fan 251 sucks air in the atmosphere and injects the air into the vent hole 216d of the second separator 216b. Then, air is distributed and supplied to the membrane-electrode assembly 212 through the vent 216d of the second separator 216b.

As a result, the fuel cell 210 outputs electric energy of a predetermined capacity through an electrochemical reaction between hydrogen contained in the fuel and oxygen contained in the air.

The fuel cell system 300 is discharged through the pores of the porous member 233 by the pumping pressure of the fuel pump 237 in a state where the fuel is absorbed in the porous member 233 of the fuel storage container 231. Unlike the conventional active type fuel cell system, the pumping capacity of the fuel pump 237 can be reduced.

6 is a schematic structural diagram of a fuel cell system according to a fourth embodiment of the present invention.

Referring to the drawings, the fuel cell system 400 according to the present embodiment generates a reformed gas containing hydrogen from the fuel and supplies the reformed gas to the fuel cell 310 to supply hydrogen to the fuel cell 310. It is composed of Polymer Electrode Membrane Fuel Cell which generates electric energy through electrochemical reaction of and oxygen.

The fuel cell system 400 includes the polymer electrolyte fuel cell 310 mentioned above, a reformer 320 for reforming the fuel to generate a reformed gas, and supplying the reformed gas to the fuel cell 310. , A fuel supply device 330 for supplying fuel to the reformer 320, and an oxygen supply device 350 for supplying oxygen to the fuel cell 310.

In this embodiment, the fuel cell 310 is configured as a cell of a minimum unit for generating electrical energy by the reaction of hydrogen and oxygen, the center of the membrane-electrode assembly (312) The first separator 316a may be in close contact with one side thereof, and the second separator 316b may be closely in contact with the other side of the membrane electrode assembly 312.

Here, the first and second separators 316a and 316b have a reforming gas and a moving channel (not shown) to enable the flow of oxygen, and the reformed gas and oxygen through this channel to the membrane-electrode assembly ( 312).

Therefore, in the present embodiment, a plurality of such fuel cells 310 are provided, and by stacking these fuel cells 310 continuously, the stack 311 having an aggregate structure of the fuel cells 310 can be formed. Since the stack 311 is made of a conventional polymer electrolyte fuel cell stack configuration, detailed description thereof will be omitted herein.

The reformer 320 applied to the present invention generates a reformed gas containing hydrogen from the fuel through a catalytic reaction such as steam reforming, steam reforming, partial oxidation, or autothermal reaction. To the first separator 316a of the fuel cell 310. At this time, the reformer 320 and the stack 311 may be connected by a conventional pipeline.

In this embodiment, the fuel supply device 330 includes a fuel reservoir 331 and a collecting member 335, as in the third embodiment, the collecting member 335 and the reformer 320 is conventional It is connected by an in-pipeline, and can be comprised by installing the fuel pump 337 on this pipeline. Since the rest of the configuration of the fuel supply device 330 is the same as the third embodiment, a detailed description thereof will be omitted.

In this embodiment, the oxygen supply source 350 for supplying oxygen to the fuel cell 310 sucks air by a predetermined pumping pressure, and supplies the air to the second separator 316b of the fuel cell 310. An air pump 351. At this time, the air pump 351 and the stack 311 may be connected by a conventional pipeline.

According to the fuel cell system 400 according to the embodiment of the present invention configured as described above, the fuel stored in the storage space 331a of the fuel storage container 331 is in a state absorbed by the porous member 333.

In this state, the fuel pump 337 sucks the fuel absorbed into the porous member 333 by a predetermined pumping pressure. At this time, the fuel is collected through the porous member 333 and collected in the body 335a of the collecting member 335, and is supplied to the reformer 320 while being discharged through the discharge hole 335b of the body 335a. . Therefore, the reformer 320 generates a reformed gas containing hydrogen from the fuel through a reforming reaction of the fuel, and supplies the reformed gas to the first separator 316a of the fuel cell 310.

At the same time, the air pump 351 sucks air and supplies this air to the second separator 316b of the fuel cell 310.

As a result, the fuel cell 310 outputs electric energy of a predetermined capacity through an electrochemical reaction of hydrogen contained in the reformed gas and oxygen contained in the air.

The fuel cell system 400 is discharged through the pores of the porous member 333 by the pumping pressure of the fuel pump 337 in a state where the fuel is absorbed in the porous member 333 of the fuel storage container 331. Unlike the conventional polymer electrolyte fuel cell system, the pumping capacity of the fuel pump 337 can be reduced.

Although the preferred embodiments of the present invention have been described above, the present invention is not limited thereto, and various modifications and changes can be made within the scope of the claims and the detailed description of the invention and the accompanying drawings. Naturally, it belongs to the scope of the invention.

According to the present invention as described above, in the case of the passive fuel cell system, the fuel supply device capable of smoothly supplying fuel to the fuel cell by capillary action is provided, thereby improving the efficiency of the fuel cell and the performance of the entire system. It can be further improved.

In addition, in the case of an active fuel cell and a polymer electrolyte fuel cell type system, a fuel supply device capable of reducing the capacity of the fuel pump is provided, thereby reducing the parasitic power and noise consumed to drive the entire system, thereby reducing the performance of the system. And energy efficiency.

Claims (23)

In the fuel supply device for supplying the fuel to a fuel cell for generating electrical energy by the reaction of a fuel and oxygen or a reformer for reforming the fuel to generate a reforming gas containing hydrogen, A fuel storage container having a storage space for storing the fuel and formed in a case shape Including; The fuel storage container, And a fuel discharge portion for discharging the fuel, wherein the fuel discharge portion is configured as a porous member for absorbing the fuel. According to claim 1, One side of the fuel reservoir is a fuel supply device configured as the fuel discharge portion. The method of claim 2, And a fuel supply unit configured to be in close contact with the fuel cell. According to claim 1, And the porous member is formed as any one porous medium selected from the group consisting of ceramics, foamable sponges, and metal foams. According to claim 1, And a collecting member installed in the fuel storage container to collect the fuel discharged from the fuel discharge unit and supply the fuel to the fuel cell or the reformer. According to claim 1, A collecting member installed in the fuel storage container and collecting the fuel discharged from the fuel discharge unit; And a fuel pump connected to the collecting member to suck the fuel and supply the fuel to the fuel cell or the reformer. delete At least one fuel cell generating electrical energy by reaction of a fuel and oxygen; A fuel supply device for supplying the fuel to the fuel cell; And An oxygen supply device for supplying the oxygen to the fuel cell Including; The fuel supply device, And a fuel storage container having a storage space for storing the fuel, wherein a fuel discharge portion for discharging the fuel is formed as a porous member, wherein the fuel storage container is in the form of a cartridge. The method of claim 8, The fuel reservoir is a fuel cell system having one side thereof is configured as the fuel discharge portion. The method of claim 8, The fuel cell is configured by arranging the separator in close contact with both sides of the membrane-electrode assembly. The method of claim 10, The fuel cell system is configured to be in close contact with the porous member and the one side separator. The method of claim 8, The fuel supply device, A collecting member installed in the fuel storage container to collect the fuel discharged from the fuel discharge unit and supply the fuel to the fuel cell; Fuel cell system comprising a. The method of claim 8, The fuel supply device, A collecting member installed in the fuel storage container and collecting the fuel discharged from the fuel discharge unit; A fuel pump disposed between the collecting member and the fuel cell to suck the fuel and supply the fuel to the fuel cell; Fuel cell system comprising a. The method of claim 10, The oxygen supply device is configured as the other side separator having a plurality of vents. The method of claim 10, The oxygen supply device is configured as the other side separator having a plurality of vent holes, and includes a fan for blowing air to the other side separator. The method of claim 8, A fuel cell system in which the fuel cell is configured as a direct oxidation fuel cell. At least one fuel cell generating electrical energy by reaction of hydrogen and oxygen; A reformer for reforming a fuel to generate a reformed gas containing hydrogen, and supplying the reformed gas to the fuel cell; A fuel supply device for supplying the fuel to the reformer; And An oxygen supply device for supplying the oxygen to the fuel cell Including; The fuel supply device is formed in the form of a cartridge having a storage space for storing the fuel, and a fuel cell system having a fuel storage container is formed as a porous member for discharging the fuel. The method of claim 17, The fuel supply device is a fuel cell system wherein one side of the fuel reservoir is configured as the fuel discharge portion. The method of claim 17, The fuel supply device, And a collecting member installed in the fuel storage container to collect the fuel discharged from the fuel discharge unit. The method of claim 19, The fuel supply device, And a fuel pump disposed between the collecting member and the reformer to suck the fuel and supply the fuel to the reformer. The method of claim 17, A fuel cell system comprising a plurality of the fuel cells, which are arranged successively to form a stack with an aggregate structure of the fuel cells. The method of claim 21, And the oxygen supply device includes an air pump that sucks air and supplies the air to the stack. The method of claim 17, A fuel cell system in which the fuel cell is configured as a polymer electrolyte fuel cell.

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