JPH08138693A - Fuel cell and power generator using it - Google Patents

Abstract

PURPOSE: To provide stable power by equalizing flow of gas contributing to the power generating reaction. CONSTITUTION: A solid polyelectrolyte membrane 11 is interposed between a hydrogen side catalytic layer 9 and an oxygen side catalytic layer 10, to form a heat generating cell main body 8, and the heat generating cell main body 8 is interposed between a hydrogen-containing gas chamber 4 and an oxygen-containing gas chamber 7. A hydrogen-containing gas supplying port 2 is connected to the hydrogen-containing gas chamber 4 through a hydrogen supplying side current fairing chamber 14, and a hydrogen-containing gas discharging port 3 is connected through a hydrogen discharging side current fairing chamber 15.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fuel cell having a sheet-shaped solid polymer electrolyte and a power generator using the fuel cell.

[0002]

2. Description of the Related Art A conventional fuel cell having a sheet-like solid polymer electrolyte is disclosed in, for example, JP-A-5-4122.
As disclosed in Japanese Patent Laid-Open No. 1, a thin type and a compact type have been proposed.

A conventional fuel cell having a solid polymer electrolyte will be described with reference to FIG. 9 showing a plan view thereof and FIG. 10 showing a sectional view thereof.

9 and 10, 101 is a fuel cell, 102 is a hydrogen-containing gas supply port of the fuel cell 101,
103 is a hydrogen-containing gas exhaust port of the fuel cell 101;
Is a hydrogen-containing gas chamber which is located between the hydrogen-containing gas supply port 102 and the hydrogen-containing gas exhaust port 103, and is divided into a plurality of compartments; 105 is an oxygen-containing gas supply port of the fuel cell 101;
Reference numeral 06 denotes an oxygen-containing gas exhaust port of the fuel cell 101, 107 denotes an oxygen-containing gas supply port 105 and an oxygen-containing gas exhaust port 1.
A plurality of oxygen-containing gas chambers located between 06,
Reference numeral 108 denotes a hydrogen-containing gas chamber 104 and an oxygen-containing gas chamber 107.
The hydrogen-containing gas chamber 1 with the power generating cell body interposed between
04, a hydrogen-side catalyst layer 109 made of a metal having a catalytic ability such as platinum, an oxygen-side catalyst layer 110 made of a metal having a catalytic ability such as platinum, brought into contact with the oxygen-containing gas chamber 107, and these catalysts. It is sandwiched between layers 109 and 110, and is composed of a solid polymer electrolyte membrane 111 made of a perfluorinated ionomer (trade name Nafion).
Reference numeral 112 is a case that divides the hydrogen-containing gas chamber 104 into a plurality of rooms, and 113 is a case that divides the oxygen-containing gas chamber 107 into a plurality of rooms. These cases 112 and 113 are made of a conductive material and It also has a function of collecting generated power. Reference numeral 114 denotes a fuel cell unit formed by arranging the power generation cell body 108 between the hydrogen-containing gas chamber 104 and the oxygen-containing gas chamber 107. The fuel cell 101 is configured by connecting a plurality of fuel cell units 114 in series. are doing. Reference numeral 115 denotes a case 11 outside the fuel cell 101.
Negative output terminal fixed to 2, 116 is the fuel cell 10
Positive output terminal fixed to the outer case 113 of 1
Reference numeral 17 is a gas connection pipe that connects between the hydrogen-containing gas chambers 104 of the adjacent fuel cell units 114 in the fuel cell 101, and 118 is a gas connection that connects between the oxygen-containing gas chambers 107 of the adjacent fuel cell units 114 in the fuel cell 101. It is a tube.

In the fuel cell 101 configured as described above, the hydrogen-containing gas supplied from the hydrogen-containing gas supply port 102 flows in parallel in the hydrogen-containing gas chamber 104 and is adjacent to the fuel cell unit 117 through the gas connecting pipe 117. The hydrogen-containing gas chamber 104 of 114 is finally exhausted from the hydrogen-containing gas exhaust port 103 (solid line arrow A), while the oxygen-containing gas supplied from the oxygen-containing gas supply port 105 is the oxygen-containing gas chamber 107. Of the oxygen-containing gas chambers 10 of the fuel cell unit 114 adjacent to each other through the gas connecting pipe 118.
7 and finally exhausted from the oxygen-containing gas exhaust port 106 (dotted line arrow B).

In each fuel cell unit 114, cell power generation as described below is performed.

That is, the hydrogen-containing gas, hydrogen, comes into contact with the hydrogen-side catalyst layer 109 in the hydrogen-containing gas chamber 104, is hydrogen-ionized by its catalytic action, and the ionized hydrogen moves in the solid polymer electrolyte membrane 111. Reach the oxygen side catalyst layer 110. On the other hand, oxygen in the oxygen-containing gas comes into contact with the oxygen-side catalyst layer 110 in the oxygen-containing gas chamber 107 and is oxygen-ionized by the catalytic action, and the ionized oxygen reacts with the ionized hydrogen to become water, and the reaction process thereof. Then, the battery power generation action occurs and an output voltage of about 1 volt is obtained. Therefore, in the case of the fuel cell 101 in FIG. 10, three fuel cell units are laminated and connected in series, so that an output voltage of about 3 volts can be obtained.

[0008]

In the conventional fuel cell device, the hydrogen-containing gas and the oxygen-containing gas flow as shown by arrows A and B in FIG. 9, for example, the flow of the hydrogen-containing gas ( Taking the case of the solid arrow A) as an example, the flow indicated by arrows a, b, c, d, e is formed in the hydrogen-containing gas chamber 104 divided into a plurality of parts of the fuel cell unit 114, and the fuel cell is also shown. Since the units 114 are stacked, the gas flow becomes a meandering complicated flow through the gas connecting pipes 117 and 118.

In order to output stable electric power from the fuel cell device, the gas needs to be sufficiently and uniformly supplied to the catalyst layers 109 and 110. For example, the hydrogen-containing gas supply port 1
The flow on the side closer to 02 (arrow a) and the flow on the far side (arrow e) are less likely to be uniform and smooth, and the gas flowing in the stacked fuel cell units 114 has a pressure loss in the flow path. However, there was a problem that it was difficult to obtain a large and uniform flow.

Further, in order to make the flow of the hydrogen-containing gas and the oxygen-containing gas uniform and to make the flow smooth and have a small pressure loss in the flow path, a considerable pressure, for example, 30 to 100.
Since it is necessary to supply at a pressure of about mm mm of water column, gas supply means such as a compressor and a high-pressure fan are required, which causes a problem that the power generation device becomes large in size, complicated, and expensive.

The present invention provides a fuel cell and a power generator capable of uniformizing the flow of a gas containing a fuel gas such as hydrogen and a gas containing a gas such as oxygen that reacts with the gas and outputting stable electric power. The purpose is to do.

[0012]

In order to achieve the above object, in the fuel cell of the present invention, a power generation cell main body formed by arranging catalyst layers on both sides of a solid polymer electrolyte membrane,
It is interposed between a hydrogen-containing gas chamber and an oxygen-containing gas chamber partitioned into a plurality of chambers, and the hydrogen-containing gas chamber has a hydrogen-containing gas supply port and a hydrogen-containing gas exhaust port through a rectifying chamber,
An oxygen-containing gas supply port and an oxygen-containing gas exhaust port are connected to the oxygen-containing gas chamber via a rectifying chamber.

Further, in a fuel cell, a power generation cell body formed by arranging catalyst layers on both sides of a solid polymer electrolyte membrane is interposed between a hydrogen-containing gas chamber and an oxygen-containing gas chamber divided into a plurality of chambers. The hydrogen-containing gas chamber may be connected to a hydrogen-containing gas supply port and a hydrogen-containing gas exhaust port via a rectifying chamber, and the oxygen-containing gas chamber may be opened to a supply source of the oxygen-containing gas. At that time, it is effective to open the oxygen-containing gas chamber to the atmosphere.

In a power generator using this fuel cell, a power generating cell body formed by arranging catalyst layers on both sides of a solid polymer electrolyte membrane is divided into a plurality of chambers, and a hydrogen containing gas chamber and an oxygen containing gas are provided. A hydrogen-containing gas supply port and a hydrogen-containing gas exhaust port through the rectifying chamber to the hydrogen-containing gas chamber, and an oxygen-containing gas supply port through the rectifying chamber to the oxygen-containing gas chamber. And a plurality of fuel cells to which the oxygen-containing gas exhaust ports are respectively connected can be electrically connected in series.

Further, in the power generator, the power generation cell body formed by arranging the catalyst layers on both sides of the solid polymer electrolyte membrane is interposed between the hydrogen-containing gas chamber and the oxygen-containing gas chamber divided into a plurality of chambers. A hydrogen-containing gas supply port and a hydrogen-containing gas exhaust port are connected to the hydrogen-containing gas chamber via a rectifying chamber, and the oxygen-containing gas chamber is opened to a supply source of the oxygen-containing gas to form a fuel cell. The fuel cell can be configured by opening the oxygen-containing gas chambers in the same direction and arranging them in parallel and electrically connecting them in series, and at that time, it is effective to open the oxygen-containing gas chambers to the atmosphere. Target.

Further, a hydrogen-containing gas obtained by reforming a fuel such as natural gas or liquid fuel, or a hydrogen-containing gas obtained by removing the contained carbon monoxide is supplied to the hydrogen-containing gas supply port. Also, a humidifying water tank portion is provided facing the oxygen-containing gas chamber, and the humidifying water tank portion is
The heat generated in at least one of the means for reforming to hydrogen-containing gas and the means for removing carbon monoxide may be connected so as to be transferred.

Further, the plurality of fuel cells are arranged in an inclined manner, one end of which is connected to the catalyst layer which is in contact with the oxygen-containing gas chamber,
It is preferable to provide a drain port at the lower end of the fuel cell, the other end of which is open to the upper part of the humidifying water tank.

[0018]

In the fuel cell constructed as described above, the hydrogen-containing gas chamber is provided with the hydrogen-containing gas supply port and the hydrogen-containing gas exhaust port through the rectifying chamber, and the oxygen-containing gas chamber is provided with the rectifying chamber. Since the oxygen-containing gas supply port and the oxygen-containing gas exhaust port are connected to each other, the gas supplied from each supply port once accumulates in the rectification chamber, and then evenly in each of the plurality of partitioned gas chambers. The gas that flows in smoothly and flows out of the gas chamber is collected in the rectifying chamber and then exits from the exhaust port, so there is no mutual interference of gas at each discharge portion of the partitioned gas chambers, and the adjacent fuel cell does not A uniform and smooth gas with no pressure loss in the flow path is supplied.

When the oxygen-containing gas chamber is opened to the supply source of the oxygen-containing gas, the oxygen-containing gas is supplied in parallel from the vertical direction to the power generating cell body, and the oxygen-containing gas is generated by the reaction. It is supplied to the oxygen-side catalyst layer of the exothermic cell body by the draft force caused by consumption, and oxygen can be supplied uniformly and smoothly in a stable state and easily. When the containing gas chamber is opened to the atmosphere so that oxygen in the atmosphere is used, it is not necessary to provide a gas supply means specially and the pressure loss is reduced.

In the power generator configured as described above, a stable and uniform flow of hydrogen-containing gas and oxygen-containing gas is formed in each of the constituent fuel cells, and the output of each fuel cell becomes stable. Therefore, the power that does not fluctuate is output.

When the oxygen-containing gas chambers are opened in the same direction and the fuel cells are arranged in parallel, the oxygen-containing gas is supplied uniformly in parallel in the same direction, and stable and stable electric power is output.

Further, by reforming a fuel such as natural gas or liquid fuel, a hydrogen-containing gas suitable for power generation of a fuel cell can be supplied, and further, carbon monoxide contained in the hydrogen-containing gas is removed. Or by converting to carbon dioxide, poisoning of the catalyst layer of the power generation cell body can be suppressed.

Further, the humidifying water tank portion provided facing the oxygen-containing gas chamber is heated by the heat generated by at least one of the means for reforming to hydrogen-containing gas and the carbon monoxide removing means to generate steam. By humidifying the oxygen-containing gas, the oxygen-side catalyst layer is also humidified, so that the ionic conductivity of the solid polymer electrolyte membrane can be kept good.

Further, a plurality of fuel cells are arranged in an inclined manner, one end of which is connected to a catalyst layer which is in contact with the oxygen-containing gas chamber,
By providing a drain outlet at the lower end of the fuel cell, the other end of which opens to the upper part of the humidification water tank part, the water that adheres to the oxygen-containing gas chamber or is generated in the power generation cell body is easily dropped into the humidification water tank part by gravity. Therefore, it is possible to prevent the power generation cell body from being covered with moisture and degrading the battery performance.

[0025]

EXAMPLES Examples of the fuel cell of the present invention will be described with reference to FIGS. It should be noted that the fuel cell is usually used by connecting a plurality of fuel cell units in order to obtain a predetermined output, but FIGS. 1 to 3 show the fuel cell in the state of the units.

1 to 3, 1 is a fuel cell,
2 is a hydrogen-containing gas supply port of the fuel cell 1; 3 is the fuel cell 1
Of the hydrogen-containing gas exhaust port, 4 is located between the hydrogen-containing gas supply port 2 and the hydrogen-containing gas exhaust port 3, and the hydrogen-containing gas chamber is divided into a plurality of chambers, and 5 is the oxygen-containing gas supply of the fuel cell 1. Port, 6 is an oxygen-containing gas exhaust port of the fuel cell 1, 7 is an oxygen-containing gas chamber located between the oxygen-containing gas supply port 5 and the oxygen-containing gas exhaust port 6 and divided into a plurality of chambers, 8
Is a power generating cell body interposed between the hydrogen-containing gas chamber 4 and the oxygen-containing gas chamber 7, and is in contact with the hydrogen-containing gas chamber 4, and the hydrogen-side catalyst layer 9 made of a metal having catalytic ability such as platinum, and oxygen. An oxygen-side catalyst layer 10 made of a metal having a catalytic ability such as platinum, which is in contact with the containing gas chamber 7, and these catalyst layers 9, 10
And a solid polymer electrolyte membrane 11 made of a perfluorinated ionomer (trade name Nafion). Reference numeral 12 is a hydrogen chamber side case that divides the hydrogen-containing gas chamber 4 into a plurality of chambers, and 13 is an oxygen chamber side case that divides the oxygen-containing gas chamber 7 into a plurality of chambers.
Reference numeral 13 is made of a conductive material and also has a function of collecting electric power generated by the power generation cell body 8. 14 is a hydrogen supply side rectification chamber inserted between the hydrogen-containing gas supply port 2 and the hydrogen-containing gas chamber 4, and 15 is a hydrogen-containing gas exhaust port 3 and a hydrogen-containing gas chamber 4.
The hydrogen exhaust side rectification chamber inserted between the fuel cell 1 and the fuel cell 1
Negative output terminal fixed to the hydrogen side case 12 of 17
Is a positive output terminal fixed to the oxygen side case 13 of the fuel cell 1, and 18 is a conductive pressure welding member. Although not shown, the oxygen-containing gas supply port 5 and the oxygen-containing gas chamber 7
Between the oxygen supply side and the oxygen supply side, and between the oxygen containing gas exhaust port 6 and the oxygen containing gas chamber 7, the oxygen supply side rectifying chamber is inserted.

The hydrogen-containing gas supplied from the hydrogen-containing gas supply port 2 collects in the hydrogen-supply-side rectifying chamber 14 and then flows evenly into each of the plurality of compartments of the hydrogen-containing gas chamber 4, so the flow thereof Becomes uniform and smooth. Further, the hydrogen-containing gas flowing out from the hydrogen-containing gas chamber 4 is discharged from the hydrogen-containing gas discharge port 3 after being accumulated in the hydrogen-exhaust-side rectifying chamber 15, so that in each discharge portion of the partitioned hydrogen-containing gas chambers 4. The mutual interference of the hydrogen-containing gas is eliminated, and as a result, the pressure in the flow path is uniformly and smoothly supplied to the hydrogen-containing gas supply port of the adjacent fuel cell, and a stable flow of the hydrogen-containing gas is formed. It

Also in the case of the oxygen-containing gas supplied from the oxygen-containing gas supply port 5, there is no pressure loss due to the actions of the oxygen supply side rectification chamber and the oxygen discharge side rectification chamber, as in the case of the hydrogen-containing gas. A uniform, smooth and stable stream of oxygen-containing gas is formed.

Therefore, since the respective fuel cells do not show different power generation performance, the fuel cell device can output stable power without deterioration of the power generation performance.

A fuel cell of another embodiment will be described with reference to FIGS. 4 to 6. The components already described in FIGS. 1 to 3 are designated by the same reference numerals and the description thereof will be omitted. .

4 to 6, 21 is a fuel cell, 22 is an oxygen side case, 23 is an oxygen-containing gas chamber divided into a plurality of chambers by the oxygen side case 22, and 24 is formed in the oxygen side case 22, A ventilation port communicating with the oxygen-containing gas chamber 23, and 25 is an oxygen-containing gas supply port directly connected to the ventilation port 24. A hydrogen supply side rectification chamber 14, a hydrogen discharge side rectification chamber 15, and an oxygen discharge side rectification chamber are provided.

Therefore, the oxygen-containing gas chamber 23 is opened to the supply source of the oxygen-containing gas such as the atmosphere, the oxygen-containing gas is supplied to the power generation cell body 8 in parallel from the vertical direction, and the oxygen-containing gas is also contained. Since the gas is supplied to the oxygen-side catalyst layer 10 of the heat generating cell body 8 by the draft force caused by the reaction being consumed by the reaction, oxygen can be supplied uniformly and smoothly, and the fuel cell 21 needs a gas supply means. A stable flow of hydrogen-containing gas and oxygen-containing gas is formed.

Next, an embodiment of the power generator according to the present invention will be described with reference to FIG. 7. The components already described in the other embodiments are designated by the same reference numerals and the description thereof will be omitted. .

In FIG. 7, 31 is a fuel cell device in which fuel cells 21 are arranged in parallel and connected in series, and 32 is a liquid fuel in which methanol and water are mixed at a predetermined ratio, and is stored in a fuel tank 33. There is. 34 is a fuel pump, and the discharge pipe 3
Liquid fuel is discharged from 5. A hydrogen-containing gas supply source 36 is provided inside a cylindrical metal tube 37 to vaporize the liquid fuel discharged from the discharge pipe 35, and to reform the vaporized liquid fuel into a hydrogen-containing gas. A reforming means 39 having a catalyst layer and a carbon monoxide removing means having a carbon monoxide shift catalyst layer for modifying carbon monoxide contained in a hydrogen-containing gas into carbon dioxide and removing carbon monoxide. 40 and 40 are stored. Reference numeral 41 denotes a catalyst burner which is provided in the vicinity of the hydrogen-containing gas supply source 36 and which performs catalytic combustion.
Reference numeral 2 is an output pipe of the hydrogen-containing gas supply source 36, 43 is an air port for supplying air to the catalyst burner 41, 44 is an adiabatic case for housing the hydrogen-containing gas supply source 36 and the catalyst burner 41,
The humidifying water tank portion 45 mounted on the heat insulating case 44 has a function of transferring waste heat from the reforming unit 39 and the carbon monoxide removing unit 40. 46 is the water stored in the humidifying water tank portion 45, 4
Reference numeral 7 is a connection cable that connects the positive output terminal 17 of the fuel cell 21 and the negative output terminal 16 of the adjacent fuel cell 21. The oxygen-containing gas chamber 23 of the fuel cell 21
May be opened to the atmosphere, or natural gas may be directly supplied to the hydrogen-containing gas supply source 36.

In the catalyst burner 41, the vaporized gas of the liquid fuel vaporized in the vaporization section 38 is normally supplied from the fuel supply port 48 and burns at a predetermined combustion amount, and the vaporization means 38, reforming means 39, A predetermined heat energy is supplied to the carbon oxide removing means 40. The liquid fuel discharged from the discharge pipe 35 of the fuel pump 34 is the catalyst burner 41 and the hydrogen-containing gas supply source 3
6 and the liquid fuel supplied to the hydrogen-containing gas supply source 36 is reformed, modified and removed of carbon monoxide, and about 75% of hydrogen and carbon dioxide are mixed from the output pipe 42. The hydrogen-containing gas is supplied to the hydrogen-containing gas supply port 2 of the fuel cell 21.

When the hydrogen-containing gas supply source 36 is started, a separately provided heater is caused to generate heat by an external power source such as a battery, or a separately provided wick type stove such as a portable stove is supplied from the fuel supply port 48. Thermal energy can also be provided by supplying and burning fuel.

The thermal energy generated in the reforming means 39 and the carbon monoxide removing means 40 by the catalytic reaction when reforming the fuel and modifying and removing the carbon monoxide is the heat insulating case 4.
Since the water 46 in the humidifying water tank portion 45 is heated via the air 4, the air that is opened to the atmosphere and supplied from the oxygen-containing gas supply port 25 is sufficiently humidified by the steam generated by heating the water 46. As a result, the oxygen-side catalyst layer 10 of the power generation cell body 8 is humidified, so that the ionic conductivity of the solid polymer electrolyte membrane 11 is sufficiently maintained, and good power generation performance can be obtained.

Further, the fuel cells 21 electrically connected in series are arranged in parallel, and the oxygen-containing gas supply ports 25 thereof are oriented in the same downward direction, so that the structure of the power generator is simplified and the output is thin. A high-voltage generator is obtained.

The humidifying water tank portion 45 is formed of a porous body having a water absorbing function, and the same effect can be obtained by impregnating and retaining water in this porous body. In this case, further water leakage does not occur and water retention is improved. There is also an effect to do.

A power generator according to another embodiment will be described with reference to FIG. 8. The components already described in the other embodiment are designated by the same reference numerals and the description thereof will be omitted.

In FIG. 8, reference numeral 51 is a fuel cell device in which the fuel cells 21 are arranged in a tilted manner and connected in series, and 52 is a drain port provided at the lower end of the oxygen-containing gas supply port 25 of the fuel cell 21, one end of which is provided. Communicates with the oxygen-side catalyst layer 10 of the fuel cell 21, and the other end opens at the top of the humidifying water tank portion 45.

Moisture that has condensed in the oxygen-containing gas supply port 25 and the oxygen-containing gas chamber 7 and water that is generated in the oxygen-side catalyst layer 10 are removed by gravitationally dripping and returning to the humidifying water tank portion 45 from the drain outlet 52. Therefore, the oxygen-containing gas does not contain excess water, and the oxygen-side catalyst layer 10 is not covered with water, so that the power generation performance does not deteriorate.

Since the oxygen-containing gas supply port 25 of the fuel cell 21 is inclined, the oxygen-containing gas is uniformly and smoothly supplied by the draft force generated by the disappearance of the oxygen-containing gas.

[0044]

Since the present invention is configured as described above, it has the following effects.

The hydrogen-containing gas and the oxygen-containing gas are uniformly and smoothly supplied to the respective gas chambers to cause a cell reaction in the power generation cell main body, and are supplied to the adjacent fuel cells with little pressure loss in the flow path. Therefore, it is not necessary to increase the supply pressure or add a supply means,
The size and complexity of the fuel cell are eliminated.

Further, since a stable and uniform flow of the hydrogen-containing gas and the oxygen-containing gas is formed in the fuel cell, the power generator can output the stable and stable electric power.

Further, when the fuel cells are arranged in parallel so that the oxygen-containing gas chambers open in the same direction, the oxygen-containing gas is supplied in parallel from the same direction and becomes uniform, so that stable and stable power can be output. .

Further, by using the hydrogen-containing gas obtained by reforming the fuel such as natural gas or liquid fuel, the hydrogen-containing gas suitable for the power generation of the fuel cell device can be supplied, and the power generation reaction becomes efficient, Furthermore, if carbon monoxide contained in the hydrogen-containing gas is removed or converted into carbon dioxide, poisoning of the catalyst layer of the power generation cell body is suppressed,
The power generation reaction becomes more efficient.

Further, when steam generated by utilizing the heat generated by at least one of the means for reforming to hydrogen-containing gas or the means for removing carbon monoxide and the oxygen-containing gas is humidified by this steam, the oxygen-side catalyst layer is also formed. Since the solid polymer electrolyte membrane is humidified and the ionic conductivity of the solid polymer electrolyte membrane can be favorably maintained, a stable output can be obtained.

Further, by removing the water attached to or generated in the oxygen-containing gas chamber and the water generated in the power generation cell body, deterioration of the battery performance is prevented, and stable output without fluctuation can be obtained.

[Brief description of drawings]

FIG. 1 is a plan view of a fuel cell according to an embodiment of the present invention.

FIG. 2 is a front view of the fuel cell.

FIG. 3 is a sectional view of the fuel cell.

FIG. 4 is a plan view of a fuel cell according to another embodiment of the present invention.

FIG. 5 is a front view of the fuel cell.

FIG. 6 is a sectional view of the fuel cell.

FIG. 7 is a schematic sectional view of a power generator according to an embodiment of the present invention.

FIG. 8 is a schematic cross-sectional view of a power generator according to another embodiment of the present invention.

FIG. 9 is a plan view of a conventional fuel cell.

FIG. 10 is a sectional view of the fuel cell.

[Explanation of symbols]

 1, 21 Fuel cell 2 Hydrogen-containing gas supply port 3 Hydrogen-containing gas exhaust port 4 Hydrogen-containing gas chamber 5, 25 Oxygen-containing gas supply port 6 Oxygen-containing gas exhaust port 7, 23 Oxygen-containing gas chamber 8 Power generation cell body 9 Hydrogen side Catalyst layer 10 Oxygen side catalyst layer 11 Solid polymer electrolyte membrane 14 Hydrogen supply side rectification chamber 15 Hydrogen exhaust side rectification chamber 38 Reforming means 40 Carbon monoxide removing means 45 Humidification water tank section 52 Drainage port

Claims (10)

[Claims] 1. A power generation cell body formed by arranging catalyst layers on both sides of a solid polymer electrolyte membrane is interposed between a hydrogen-containing gas chamber and an oxygen-containing gas chamber partitioned into a plurality of chambers,
The hydrogen-containing gas chamber is provided with a hydrogen-containing gas supply port and a hydrogen-containing gas exhaust port through a rectifying chamber, and the oxygen-containing gas chamber is provided with an oxygen-containing gas supply port and an oxygen-containing gas exhaust port through a rectifying chamber. Connected fuel cell. 2. A power generation cell body formed by arranging catalyst layers on both sides of a solid polymer electrolyte membrane is interposed between a hydrogen-containing gas chamber and an oxygen-containing gas chamber partitioned into a plurality of chambers.
A fuel cell in which a hydrogen-containing gas supply port and a hydrogen-containing gas exhaust port are connected to the hydrogen-containing gas chamber via a rectifying chamber, and the oxygen-containing gas chamber is opened to a supply source of the oxygen-containing gas. 3. The fuel cell according to claim 2, wherein the oxygen-containing gas chamber is open to the atmosphere. 4. A power generation cell body formed by arranging catalyst layers on both sides of a solid polymer electrolyte membrane is interposed between a hydrogen-containing gas chamber and an oxygen-containing gas chamber divided into a plurality of chambers,
The hydrogen-containing gas chamber is provided with a hydrogen-containing gas supply port and a hydrogen-containing gas exhaust port through a rectifying chamber, and the oxygen-containing gas chamber is provided with an oxygen-containing gas supply port and an oxygen-containing gas exhaust port through a rectifying chamber. A power generator in which the fuel cells are connected to form a fuel cell and the fuel cells are electrically connected in series. 5. A power generating cell body formed by arranging catalyst layers on both sides of a solid polymer electrolyte membrane is interposed between a hydrogen-containing gas chamber and an oxygen-containing gas chamber partitioned into a plurality of chambers.
A hydrogen-containing gas supply port and a hydrogen-containing gas exhaust port are connected to the hydrogen-containing gas chamber via a rectifying chamber, and the oxygen-containing gas chamber is opened to a supply source of the oxygen-containing gas to form a fuel cell. A power generator in which fuel cells are arranged in parallel with the oxygen-containing gas chambers open in the same direction and are electrically connected in series. 6. The power generator according to claim 5, wherein the oxygen-containing gas chamber is opened to the atmosphere. 7. The power generator according to claim 5, wherein a means for reforming the fuel into a hydrogen-containing gas is connected to the hydrogen-containing gas supply port. 8. The power generator according to claim 7, wherein the carbon monoxide removing means is connected to the means for reforming the fuel into a hydrogen-containing gas. 9. A humidifying water tank portion is provided opposite to the oxygen-containing gas chamber, and the humidifying water tank portion is connected to at least one of a means for reforming to a hydrogen-containing gas and a carbon monoxide removing means so as to be able to transfer heat. The described power generator. 10. The fuel cell is arranged at an inclination, one end is connected to a catalyst layer in contact with the oxygen-containing gas chamber, and the other end is provided with a drain port at the upper end of the humidifying water tank portion at the lower end of the fuel cell. The power generator according to claim 9.