JP4713120B2 - Fuel cell container, fuel cell and electronic device - Google Patents

Description

  The present invention relates to a small and highly reliable fuel cell container made of ceramics that accommodates an electrolyte member, a fuel cell using the same, and an electronic device.

  In recent years, development of small fuel cells that operate at a lower temperature than before has been actively conducted. Depending on the type of electrolyte used for the fuel cell, a polymer electrolyte fuel cell (hereinafter referred to as PEFC), a phosphoric acid fuel cell, or a solid electrolyte fuel cell is known. ing.

Among them, PEFC has a low operating temperature of about 80-100 ° C,
(1) The output density is high, and the size and weight can be reduced.
(2) Since the electrolyte is not corrosive and the operating temperature is low, since there are few restrictions on the battery constituent materials from the viewpoint of corrosion resistance, cost reduction is easy.
(3) Since it can be started at room temperature, the startup time is short.
It has excellent features such as For this reason, PEFC takes advantage of the above features and is not only applied to driving power sources for vehicles and cogeneration systems for homes, but also to mobile phones, PDAs (Personal Digital Assistants), laptop computers, digital cameras, The use as a power source for portable electronic devices whose output of a video camera or the like has several W to several tens of W has been considered.

The PEFC is roughly divided, for example, a fuel electrode (cathode) composed of a carbon electrode to which catalyst fine particles such as platinum and platinum-ruthenium are adhered, and an air electrode (anode) composed of a carbon electrode to which catalyst fine particles such as platinum are adhered, It has a film-like electrolyte member interposed between the fuel electrode and the air electrode. Here, hydrogen gas (H ₂ ) extracted through the reforming unit is supplied to the fuel electrode, while oxygen gas (O ₂ ) in the atmosphere is supplied to the air electrode, Predetermined electric energy is generated (power generation) by the electrochemical reaction, and electric energy that is a driving power source (voltage / current) for the load is generated.

Specifically, when the hydrogen gas to the fuel electrode (H ₂₎ is supplied, as shown in the following chemical equation (1), electrons by the catalyst (e ^-) is separated hydrogen ions (protons; H ⁺ ) Is generated and passes through the electrolyte member to the air electrode side, and electrons (e ⁻ ) are taken out by the carbon electrode constituting the fuel electrode and supplied to the load.

3H ₂ → 6H ⁺ + 6e ⁻ (1)
On the other hand, when air is supplied to the air electrode, as shown in the following chemical reaction formula (2), electrons (e ⁻ ) passing through the load by the catalyst and hydrogen ions (H ⁺ ) passing through the electrolyte member, Reaction with oxygen gas (O ₂ ) in the air produces water (H ₂ O).

6H ⁺ + 3 / 2O ₂ + 6e ⁻ → 3H ₂ O (2)
Such a series of electrochemical reactions (formula (1) and formula (2)) proceeds at a relatively low temperature condition of approximately 80 to 100 ° C., and by-products other than electric power are basically water (H ₂ O) only.

  The ion conductive film (exchange membrane) constituting the electrolyte member is a polystyrene-based cation exchange membrane having a sulfonic acid group, a mixed membrane of fluorocarbon sulfonic acid and polyvinylidene fluoride, and trifluoroethylene grafted on a fluorocarbon matrix. Recently, a perfluorocarbon sulfonic acid film (for example, trade name “Nafion” manufactured by DuPont) or the like has been used.

  FIG. 3 is a cross-sectional view showing the configuration of a conventional fuel cell (PEFC). In the figure, 21 is a PEFC, 23 is an electrolyte member, 24 and 25 are arranged on the electrolyte member 23 so as to sandwich the electrolyte member, and a pair of porous electrodes having functions as a gas diffusion layer and a catalyst layer, that is, A fuel electrode and an air electrode, 26 is a gas separator, 28 is a fuel flow path, and 29 is an air flow path.

  The gas separator 26 is provided so as to penetrate the separator portion and the gas inflow / outflow frame that form the outer shape of the gas separator 26, the separator portion that separates the fuel passage 28 and the air passage 29, and the separator portion. The electrode member is configured to correspond to the fuel electrode 24 and the air electrode 25 of the electrolyte member 23. A fuel cell stack, which is the smallest unit of a battery, is formed by stacking a large number of gas electrodes 26 so that the fuel electrode 24 and the air electrode 25 of the electrolyte member 23 are electrically connected in series and / or in parallel. A typical PEFC body is a stack in a box.

A fuel gas containing water vapor (a gas rich in hydrogen) is supplied from the reformer to the fuel electrode 24 through the fuel flow path 28 formed in the gas separator 26, and the air electrode 25 is passed through the air flow path 29 to the atmosphere. Is supplied with air as an oxidizing gas, and is generated by a chemical reaction in the electrolyte member 23.
JP 2001-266910 A Special table 2001-507501 gazette

  However, the fuel cell 21 conventionally proposed and developed as such a high-voltage, high-capacity battery is a large-sized and large-sized battery having a stack structure and a large area, and a small battery. Conventionally, the use of the fuel cell has been hardly considered. That is, in the conventional gas separator 26 in such a fuel cell 21, in the laminated body in which the electrolyte member 23 is laminated using the gas separator 26, the side surface of the electrolyte member 23 is exposed to the outside, so that it is dropped when being carried. There is a problem that the fuel cell 21 is easily damaged and it is difficult to ensure the mechanical reliability of the fuel cell 21 as a whole.

  In order to mount the fuel cell 21 on a portable electronic device, a fuel cell container that is different from the conventional large-sized fuel cell and is excellent in compactness, simplicity, and safety is required. That is, in order to be applied as a portable power source such as a general-purpose chemical battery, it is necessary to reduce the size and height of the fuel cell container. However, in the conventional fuel cell 21, the gas that accounts for the majority of the heat capacity ratio. Since the separator 26 becomes brittle when it is thinned, particularly in the case of the gas separator 26 in which the flow path is formed by cutting on the surface of the carbon plate, a thickness of several mm is required. Therefore, there is a problem that it is difficult to reduce the size and height.

  Further, the conventional large fuel cell is provided with end plates each having a predetermined thickness at one end and the other end in the cell stacking direction. The end plate is formed with a pair of screw holes so that screws can be inserted therethrough. Accordingly, holes corresponding to the screw holes formed in the end plate are also formed in the separator of each cell. Then, these stacked cells are combined by bolts and integrated. Therefore, there is a problem that it is difficult to reduce the size and height.

  Further, the output voltage of the fuel cell 21 is determined by the partial pressure of the gas supplied to the electrodes 24 and 25 on the front and back surfaces of the electrolyte member 23, but the fuel gas supplied to the electrolyte member 23 travels through the fuel flow path 28. When consumed in the power generation reaction, the partial pressure of the fuel gas on the surface of the fuel electrode 24 decreases and the output voltage decreases. Similarly, when air also travels through the air flow path 29 and is consumed, the partial pressure of oxygen on the surface of the air electrode 25 decreases and the output voltage decreases. Therefore, it is necessary to supply the fuel gas evenly while maintaining a constant partial pressure, but the gas separator 26 of the conventional fuel cell 21 has a flow path formed by cutting on the surface of the carbon plate in particular. Therefore, since the depth of the groove of the flow path is reduced when the thickness is reduced, the resistance of the flow path is increased, and there is a problem that uniform gas supply is difficult.

  In addition, the combination of the plurality of electrolyte members 23, the fuel electrode 24, the air electrode 25, and the gas separator 26 is arbitrarily connected in series or in parallel so that the overall output voltage and output current are adjusted. However, in the conventional fuel cell 21, in order to take out electricity from the fuel electrode 24 and the air electrode 25 sandwiching the electrolyte member 23, the wiring conductor is drawn out and connected to the outside, or the gas separator 26 is connected to the conductive sheet. There is only a method of overlapping and connecting in series, and there is a problem that it is difficult in a small fuel cell.

  The present invention has been completed in view of the above-described problems of the prior art, and an object of the present invention is a small and robust container for a fuel cell that can accommodate an electrolyte member, and assembling the fuel cell. It is an object of the present invention to provide a highly reliable fuel cell container and a fuel cell using the same, which can improve the power generation performance.

A container for a fuel cell according to the present invention comprises a substrate made of ceramics having a plurality of recesses on the upper surface for accommodating an electrolyte member in which a first electrode is formed on a lower main surface and a second electrode is formed on an upper main surface, and the electrolyte One end is disposed on the first fluid flow path formed from the bottom surface of the recess facing the lower main surface of the member to the outer surface of the base, and the bottom surface of the recess facing the first electrode, and the other end a first wiring conductor but derived on the outer surface of the base body, a lid Ru consists attached to ceramic covering the recess on the upper surface around said recess of said base, said upper major surface of the electrolyte member A second fluid flow path formed from the lower surface of the facing lid body to the outer surface of the lid body, one end is disposed on the lower surface of the lid body facing the second electrode, and the other end of the lid body The second wiring conductor led out to the outer surface and one end in front A third wiring conductor that is opposed to the first electrode at the bottom surface of the recess and whose other end is led out to an upper surface to which the lid body of the base body is attached; facing the second electrode of the concave side, a fourth wiring conductor whose other end is derived so as to face the other end of the third wiring conductor on the lower surface of the lid to be worn taken on the upper surface of the base body A heater is formed in at least one of the periphery of the other end of the third wiring conductor in the base and the periphery of the other end of the fourth wiring conductor in the lid. It is characterized by being.

  According to the fuel cell container joining method of the present invention, a conductive joining material provided between the other end of the third wiring conductor and the other end of the fourth wiring conductor of the fuel cell container is locally applied by the heater. The third and fourth wiring conductors are electrically connected to each other by heating, and the base body and the lid are attached.

  The fuel cell container manufacturing apparatus of the present invention is configured to apply power to the heater in a state in which a weight is applied to the base body and the lid body of the fuel cell container and the lid body is in pressure contact with the base body and the lid body. The wiring conductor is electrically connected.

In the fuel cell of the present invention, the electrolyte member is accommodated in a plurality of the recesses of the fuel cell container, and is opposed to the lower main surface on which the first electrode of the electrolyte member is formed. Fluid flow
Forming a path and forming the second fluid flow path so as to face the upper main surface on which the second electrode of the electrolyte member is formed, and the lower side of the first fluid flow path and the electrolyte member main surface and between said second fluid flow path and the electrolyte said upper major surface and each fluid exchange capable to Rutotomoni between the members, said first and second wiring conductor first and second And electrically connecting the third and fourth wiring conductors to the first electrode and the second electrode, respectively, covering the concave portion on the upper surface around the concave portion of the base , and the third wiring The other ends of the third and fourth wiring conductors are connected to each other by locally heating the conductive bonding material provided between the other end of the conductor and the other end of the fourth wiring conductor by the heater. And the lid is attached. .

  An electronic device according to the present invention includes the fuel cell according to the present invention as a power source.

A fuel cell container according to the present invention comprises a substrate made of ceramics having a plurality of recesses on the upper surface for accommodating an electrolyte member having a first electrode on the lower main surface and a second electrode on the upper main surface, since it is provided with a lid Ru consists mounted by ceramics over the recess on the upper surface of the surrounding recess by sealing the fuel cell container airtight, no leakage of fluid such as gas Since it is not necessary to provide a container such as a package in addition to this container, it is possible to obtain a fuel cell that can be operated efficiently and to be effective for downsizing. In addition, since a plurality of electrolyte members can be housed in a box formed by a ceramic body having a concave portion on the upper surface and a lid that seals the concave portion, a fuel cell can be obtained. The mechanical reliability of the entire fuel cell is improved without being exposed to the outside and being damaged. In addition to the first and second wiring conductors, one end of which is disposed inside the container constituted by the recess and the lid, unnecessary electrical contact with the electrolyte member itself can be avoided, so that reliability and safety are ensured. High fuel cell can be obtained. Furthermore, by using ceramics as the constituent material of the fuel cell container, it is possible to obtain a fuel cell having excellent corrosion resistance against fluids including various gases.

  Also, a first fluid channel formed from the bottom surface of the recess facing the lower main surface of the electrolyte member to the outer surface of the substrate, and formed from the lower surface of the lid body facing the upper main surface of the electrolyte member to the outer surface of the lid body. Since each of the plurality of fluid flow paths is provided on the inner wall surfaces facing each other across the electrolyte member, the fluid supplied to the electrolyte member The uniform supply performance can be improved. According to such a fluid path, since the fluid flows perpendicularly to the electrolyte member, for example, when the fluid is hydrogen gas and air (oxygen) gas, the electrolyte member has on the lower and upper main surfaces, respectively. The gas partial pressure supplied to the first and second electrodes can be suppressed from decreasing, and a predetermined stable output voltage can be obtained. Further, since the pressure of the fluid to be supplied, for example, the gas partial pressure is stabilized, the distribution of the internal temperature of the fuel cell container is made uniform, and as a result, the thermal stress generated in the electrolyte member can be suppressed. Reliability can be improved.

  Furthermore, since each fluid flow path is formed in a base body and a lid, each of the two types of raw material fluids (for example, oxygen gas and hydrogen gas) that are excellent in hermeticity of each flow path and should be isolated from each other by the flow path is used. (Methanol, etc.) is not mixed so that its function as a fuel cell is not lost, and there is no risk of ignition or explosion after a flammable fluid is mixed at a high temperature. Can be provided.

Also, according to the fuel cell container of the present invention, the first electrode is formed on the bottom surface of one recess formed on the base having a plurality of recesses for accommodating the electrolyte member and the lid attached to the base. The other end of the third wiring conductor led to the upper surface to which the lid of the base body is attached, and the other end of the third wiring conductor on the lower surface of the lid, facing the other one of the recesses, and the other end electrical but because it is provided with a fourth wiring conductor derived so as to face the other end of the third wiring conductors to the lower surface of the lid to be worn taken on the upper surface of the base member, a plurality of electrolyte member By connecting them to each other, they can be connected in series. As a result, even if the power is generated by each electrolyte member, even if it is a minute voltage, the total voltage can be adjusted by series connection, so that the electricity electrochemically generated by the electrolyte member is taken out in a good state. It becomes possible.

  In addition, since a heater is formed around the other end of the third wiring conductor inside the base and around the other end of the fourth wiring conductor inside the lid, current is applied to the heater to control the current. By doing so, it becomes possible to locally supply an amount of heat sufficient to melt and harden the conductive bonding material for electrically connecting the gap between the third wiring conductor and the fourth wiring conductor. Since the heat generated from the heater is limited only to the junction region between the three wiring conductors and the fourth wiring conductor, damage such as breakage of the low heat resistant electrolyte member or generation of pinholes can be prevented.

  Further, according to the joining method of the fuel cell container of the present invention, the conductive joining material provided between the other end of the third wiring conductor and the other end of the fourth wiring conductor of the fuel cell container is locally applied by the heater. By electrically heating, the third and fourth wiring conductors are electrically connected and the base body and the lid are attached, so that the electrical resistance and contact resistance of the joint portion of the third and fourth wiring conductors are reduced. Therefore, voltage loss during power generation is suppressed, and as a result, power generation performance is improved. Moreover, the connection reliability in a junction part can be made high.

In addition, according to the fuel cell container manufacturing apparatus of the present invention, the third and fourth are obtained by applying electric power to the heater in a state in which a weight is applied to the base and lid of the fuel cell container and they are pressed against each other. electrically connected to order a conductor, in the case of performing the reflow process, since the allowable temperature above the load to the electrolyte member is applied, tends electrolyte member is damaged, also adds the necessary sufficient weight in a furnace However, by using the fuel cell container manufacturing apparatus of the present invention described above, it is possible to manufacture a fuel cell without being restricted by the size and thickness of the fuel cell and without damaging the electrolyte member. In this case, the manufacturing process can be simplified and the cost can be reduced.

  In the fuel cell of the present invention, the electrolyte member is accommodated in the plurality of recesses of the fuel cell container, and the lower main surface and the upper main surface of the electrolyte member are disposed between the first fluid channel and the second fluid channel. The first and second wiring conductors are electrically connected to the first and second electrodes, and the third and fourth wiring conductors are electrically connected to the first and second electrodes. Since the cover is attached to the upper surface around the recess of the base body by covering the recess and connecting the other ends of the third and fourth wiring conductors, the fuel cell of the present invention as described above It is possible to obtain a highly reliable fuel cell that is small, robust, and can be easily assembled, and can improve power generation performance.

  Since the electronic device according to the present invention has the fuel cell according to the present invention as a power source, the electronic device according to the present invention is small, low-profile, and stable over a long period of time with the features of the fuel cell container according to the present invention. Thus, it is possible to obtain an electronic device with excellent safety and convenience.

  In addition, if the fuel cell as a power source is provided with external connection terminals (positive terminal and negative terminal) on at least one of the base and lid, it can be easily electrically connected to the circuit board of the electronic device. And can be freely attached and detached. Therefore, the fuel cell can be easily replaced with a new one without using a facility equipped with special safety equipment, and the convenience of the electronic device can be enhanced.

  Furthermore, since a metal layer can be formed in various shapes and electrical characteristics by a metallization method or the like inside the base of the fuel cell container, an electronic circuit element that functions as a resistance, capacitance, inductance, etc. is provided inside the base. Can be formed. Therefore, for example, when a large capacity capacitor is formed in parallel with the fuel cell, when the current output from the fuel cell becomes insufficient, the insufficient current is compensated to meet the target output current. It is possible to ensure a sufficient current supply. In addition, since a booster circuit can be formed, a voltage necessary for the electronic device can be secured.

  A fuel cell container and a fuel cell according to the present invention will be described below in detail with reference to the accompanying drawings.

  FIG. 1 is a cross-sectional view showing an example of an embodiment of a fuel cell container of the present invention and a fuel cell using the same. In FIG. 1, 1 is a fuel cell, 2 is a fuel cell container, 3 is an electrolyte member, 4 is a first electrode, 5 is a second electrode, 6 is a base, 7 is a lid, 8 is a first fluid flow path, 9 is the second fluid flow path, 10 is the first wiring conductor, 11 is the second wiring conductor, 12 is the third wiring conductor, 13 is the fourth wiring conductor, 14 is the heater, 15 is the conductive bonding material, and 16 is the bonding An electrode 17 is a bonding material.

  The electrolyte member 3 in the present invention faces, for example, the first electrode 4 formed on the lower main surface and the second electrode 5 formed on the upper main surface on both main surfaces of the ion conductive film (exchange membrane). Thus, a fuel electrode (not shown) serving as an anode electrode and an air electrode (not shown) serving as a cathode electrode are integrally formed. And the electric current generated with the electrolyte member 3 can be sent to the 1st electrode 4 and the 2nd electrode 5, and it can take out outside.

  Such an ion conductive film (exchange membrane) of the electrolyte member 3 is made of a perfluorocarbon sulfonic acid resin, for example, a proton conductive ion exchange resin such as a trade name “Nafion” (manufactured by DuPont). Further, the fuel electrode and the air electrode are gas diffusion electrodes in a porous state, and have both functions of a porous catalyst layer and a gas diffusion layer. These fuel electrode and air electrode are constituted by a porous material in which conductive fine particles carrying a catalyst such as platinum, palladium or alloys thereof, for example, carbon fine particles are held by a hydrophobic resin binder such as polytetrafluoroethylene. Has been.

  The first electrode 4 on the lower main surface and the second electrode 5 on the upper main surface of the electrolyte member 3 are a method of hot pressing a carbon electrode with catalyst fine particles such as platinum or platinum-ruthenium on the electrolyte member 3, or Further, it is formed by a method of applying or transferring a mixture of a carbon electrode material with catalyst fine particles such as platinum or platinum-ruthenium and a solution in which an electrolyte material is dispersed onto the electrolyte.

The fuel cell container 2 is composed of a base 6 having a recess and a lid 7, and has a role of hermetically sealing the electrolyte member 3 by mounting the electrolyte member 3 inside the recess, and is made of aluminum oxide (Al ₂ O ₃ ) body, mullite _{(3Al 2 O 3 · 2SiO 2} ) sintered material, silicon carbide (SiC) sintered material, aluminum nitride (AlN) sintered material, silicon nitride _(Si 3 _{N 4)} sintered material It is formed of a ceramic material such as a glass ceramic sintered body.

The glass ceramic sintered body includes a glass component and a filler component. Examples of the glass component include SiO ₂ —B ₂ O ₃ , SiO ₂ —B ₂ O ₃ —Al ₂ O ₃ , and SiO ₂ —. B ₂ O ₃ —Al ₂ O ₃ —MO system (M represents Ca, Sr, Mg, Ba or Zn), SiO ₂ —Al ₂ O ₃ —M ¹ O—M ² O system (M ¹ and M ² are the same or different and represent Ca, Sr, Mg, Ba or Zn), SiO ₂ —B ₂ O ₃ —Al ₂ O ₃ —M ¹ O—M ² O system (provided that M ¹ and M ² is the same as above), SiO ₂ —B ₂ O ₃ —M ³ ₂ O system (where M ³ represents Li, Na or K), SiO ₂ —B ₂ O ₃ —Al ₂ O ₃ — M ³ ₂ O-based (where M ³ is the same as above), Pb-based glass And Bi-based glass.

Examples of the filler component include a composite oxide of Al ₂ O ₃ , SiO ₂ , ZrO ₂ and an alkaline earth metal oxide, a composite oxide of TiO ₂ and an alkaline earth metal oxide, Al ₂ O _3. And composite oxides containing at least one selected from SiO ₂ (for example, spinel, mullite, cordierite) and the like.

  The fuel cell container 2 includes a base 6 having a recess and a lid 7. A seal member (not shown) and an electrolyte member 3 that match the shape of the electrolyte member 3 are inserted into the recess of the base 6. The body 7 is sealed by being attached to the base body 6. The lid 7 may be formed with a recess similar to the base 6.

  In order to reduce the thickness of the base body 6 and the lid body 7 and to reduce the height of the fuel cell 1, the bending strength, which is mechanical strength, is preferably 200 MPa or more.

  The base body 6 and the lid body 7 are preferably formed of an aluminum oxide sintered body made of a dense material having a relative density of 95% or more, for example. In that case, for example, first, a rare earth oxide powder and a sintering aid are added to and mixed with the aluminum oxide powder to prepare a raw material powder of the aluminum oxide sintered body. Next, an organic binder and a dispersing agent are added to the raw material powder of this aluminum oxide sintered body, mixed to form a paste, and from this paste, an organic binder is added to the raw material powder by a doctor blade method, press forming, rolling forming Thus, a green sheet having a predetermined thickness is produced. Then, through this green sheet, through holes as the first fluid flow path 8 and the second fluid flow path 9 are formed by a punching method using a mold, a drilling method using a micro drill, a drilling method using laser light irradiation, and the like. A through hole for arranging the first wiring conductor 10, the second wiring conductor 11, the third wiring conductor 12, and the fourth wiring conductor 13 is formed. In addition, the 1st fluid flow path 8 and the 2nd fluid flow path 9 may be the groove | channel formed in the surface or the inside by stamping with a metal mold | die, press molding, etc.

When an aluminum oxide sintered body is used as the ceramic material constituting the base body 6 and the lid body 7, the first wiring conductor 10, the second wiring conductor 11, the third wiring conductor 12, and the fourth wiring conductor 13 prevent oxidation. For this purpose, it is preferably made of tungsten and molybdenum. In that case, for example, as an inorganic component, ₃ to 20 parts by mass of Al ₂ O ₃ and 0.5 to 5 parts by mass of Nb ₂ O ₅ are added to 100 parts by mass of tungsten and molybdenum powder. A conductor paste is prepared. The conductor paste is filled into the through hole of the green sheet to form a via conductor as a through conductor.

  In these conductor pastes, in order to improve the adhesion of the substrate 6 and the lid 7 to the ceramic, aluminum oxide powder or the same composition powder as the ceramic component forming the substrate 6 and the lid 7 is used. It is also possible to add 0.05 to 2% by volume.

  The formation of the first wiring conductor 10, the second wiring conductor 11, the third wiring conductor 12, and the fourth wiring conductor 13 on the surface layer and the inner layer of the base body 6 and the lid body 7 is performed by filling the through hole with a conductive paste. The same conductive paste is printed on a green sheet by a method such as screen printing or gravure printing before or after forming the via conductor, or at the same time.

  Then, after aligning and laminating and pressure-bonding a predetermined number of sheet-like molded bodies filled with conductive paste, the laminated body is heated at a maximum firing temperature of 1200 to 1500 ° C., for example, in a non-oxidizing atmosphere. To obtain the target ceramic substrate 6 and lid 7, first wiring conductor 10, second wiring conductor 11, third wiring conductor 12 and fourth wiring conductor 13.

  The first wiring conductor 10 to the fourth wiring conductor 13 have a specific electric resistance of 0.1 milliΩcm or less from the viewpoint of efficiently taking out the electricity electrochemically generated by the electrolyte member 3 to the outside. Preferably there is. Examples of such a material include silver, silver alloy, copper, and copper alloy. For example, the base body 6 and the lid body 7 are formed of a glass ceramic sintered body, and the first wiring conductor 10 to the fourth wiring conductor 13 are made of copper or a copper alloy. A low resistance wiring conductor can be easily formed by simultaneous firing with the tenth to fourth wiring conductors 13.

  The volume of all conductors including the first wiring conductor 10 to the fourth wiring conductor 13 formed in the fuel cell container 2 should be 0.5% or more of the volume of the fuel cell container 2. . Thereby, the resistance of the conductor formed in the fuel cell container 2 is reduced, and the electricity electrochemically generated by the electrolyte member 3 can be efficiently taken out to the outside.

  Further, an external connection terminal (not shown) may be joined to at least one of the base body 6 and the lid body 7 by soldering or brazing. It is desirable that the external connection terminal has a shape that allows good electrical connection with a mother board or the like for forming the main electronic circuit of the electronic device. As such a shape, for example, a rod shape, a saddle shape, a conical shape, etc. that can be easily electrically and mechanically connected to each other by connecting or inserting terminals to an electronic circuit that is a main component of an electronic device. Is used. In addition, in the main electronic circuit of the electronic device, a fitting portion (connection hole such as an insertion hole or a connector) corresponding to the external connection terminal is provided in a portion to which such an external connection terminal is connected. It is preferable to provide it. Furthermore, by arranging the external connection terminals on the side surfaces of the base body 6 and the lid body 7, the height of the electronic device can be reduced.

  Moreover, it is preferable that the base | substrate 6 and the cover body 7 shall be 0.2 mm or more in thickness. If the thickness is less than 0.2 mm, the strength tends to decrease. Therefore, the base 6 and the lid 7 are easily cracked due to the stress generated when the lid 7 is attached to the base 6. On the other hand, if the thickness exceeds 5 mm, it is difficult to reduce the thickness and height, so that it becomes inappropriate as the fuel cell 1 mounted on a small portable device, and the heat capacity becomes large. It becomes difficult to quickly set an appropriate temperature corresponding to the reaction conditions.

  The first wiring conductor 10, the second wiring conductor 11, the third wiring conductor 12 and the fourth wiring conductor 13 are electrically connected to the first electrode 4 and the second electrode 5 of the electrolyte member 3, respectively. It functions as a conductive path for taking out the electric power generated in step 4 to the outside of the fuel cell container 2.

  The first wiring conductor 10 is preferably in contact with the first electrode 4 of the electrolyte member 3 around the opening of the first fluid channel 8 facing the first electrode 4 of the electrolyte member 3 on the bottom surface of the recess of the base 6. One end is in contact with the entire area of the surface of the part to be touched. As a result, the contact area between the first electrode 4 of the electrolyte member 3 and the first wiring conductor 10 can be increased, so that an increase in electrical resistance and poor contact can be effectively suppressed, and high power generation efficiency is achieved. The obtained fuel cell 1 can be obtained.

  Further, the first wiring conductor 10 is preferably formed so as to be higher than the bottom surface of the concave portion of the base 6 by 10 μm or more so as to be easily brought into contact with the first electrode 4. In order to obtain this height, it is only necessary to set the printing conditions to be thicker when the conductor paste is formed by printing and coating as described above. A plurality of the first wiring conductors 10 are arranged to face the first electrode 4 to reduce the electric loss due to the first wiring conductors 10. The diameter is preferably 50 μm or more.

  Further, the second wiring conductor 11 is a portion where the second electrode 5 of the electrolyte member 3 is in contact with the periphery of the opening of the second fluid flow path 9 facing the second electrode 5 of the electrolyte member 3 on the lower surface of the lid body 7. It is preferable that one end is disposed over the entire area of the surface and the other end is led out to the outer surface of the lid body 7. Thereby, since the contact area between the second electrode 5 of the electrolyte member 3 and the second wiring conductor 11 can be increased, an increase in electrical resistance and poor contact can be effectively suppressed, and high power generation efficiency was achieved. The fuel cell 1 can be obtained.

  Similar to the first wiring conductor 10, such a second wiring conductor 11 is also formed integrally with the lid body 7, so that the second wiring conductor 11 can be easily brought into contact with the second electrode 5. It is good to form so that it may become 10 micrometers or more higher than the lower surface of the cover body 7 which opposes. In order to obtain this height, it is only necessary to set the printing conditions to be thicker when the conductor paste is formed by printing and coating as described above. A plurality of second wiring conductors 11 are arranged opposite to the second electrode 5 to reduce electric loss due to the second wiring conductors 11 and the through portion of the lid 7 of the second wiring conductor 11 is φ50 μm. It is preferable to set it as the above diameter.

  The first wiring conductor 10 to the fourth wiring conductor 13 and the external connection terminal are nickel, copper, gold, platinum having good conductivity on the exposed surface and good corrosion resistance and wettability with the brazing material. Further, it is preferable to deposit a metal such as palladium by a plating method, and electrical connection between these conductors and a mother board or the like for forming a main electronic circuit of the electronic device can be improved.

  The first and second wiring conductors 10 and 11 and the first and second electrodes 4 and 5 are electrically connected to each other by sandwiching the electrolyte member 3 between the base 6 and the lid body 7. What is necessary is just to carry out by the structure of making the 2nd wiring conductors 10 and 11 and the 1st and 2nd electrodes 4 and 5 press-contact and electrically connecting.

  In addition, a first fluid channel 8 and a second fluid channel 9 are disposed on the bottom surface of the recess of the base 6 facing the first electrode 4 and the second electrode 5 and the bottom surface of the lid body 7, respectively. The first fluid channel 8 is formed over the outer surface of the base 6, and the second fluid channel 9 is formed over the outer surface of the lid body 7. These first and second fluid flow paths 8 and 9 are electrolyte members such as a reformed gas rich in fuel gas, such as hydrogen, or an oxidizing gas, such as air, by through holes or grooves formed in the base 6 and the lid 7, respectively. 3 is provided as a passage for the fluid supplied to 3 or as a passage for the fluid discharged from the electrolyte member 3 after the reaction, such as water generated by the reaction.

  The through holes or grooves formed in the base body 6 and the lid body 7 as the first fluid flow path 8 and the second fluid flow path 9 are configured so that fluid such as fuel gas or oxidizing gas is evenly supplied to the electrolyte member 3. Depending on the specifications of the fuel cell 1, the diameter and number of through holes, or the width, depth and arrangement of the grooves may be determined.

  In the fuel cell container 2 and the fuel cell 1 of the present invention, the first fluid channel 8 and the second fluid channel 9 preferably have a diameter of 0.1 mm in order to allow fluid to flow through the electrolyte member 3 with uniform pressure. It is preferable that the holes have the above diameters and are arranged with a constant interval.

  In this way, the first fluid flow path 8 is made to face the lower main surface on which the first electrode 4 of the electrolyte member 3 is formed, and the second fluid flow is made to face the upper main surface on which the second electrode 5 is formed. By forming the passage 9, fluid can be exchanged between the lower and upper main surfaces of the electrolyte member 3 and the first and second fluid flow paths 8 and 9, and the fluid is supplied through the respective flow paths. Discharged. For example, when supplying gas as a fluid, the partial pressure of gas supplied to the first electrode 4 and the second electrode 5 of the electrolyte member 3 can be prevented from decreasing, and a predetermined stable output voltage can be obtained. Can do. Further, since the supplied gas partial pressure is stabilized, the internal pressure of the fuel cell 1 is made uniform, and as a result, the thermal stress generated in the electrolyte member 3 can be suppressed, so that the reliability of the fuel cell 1 is improved. Can be made.

Then, in the present invention, which is formed in the lid 7 Ru consists recess plurality has been attached substrate 6 and thereto made of ceramics ceramics for accommodating the electrolyte member 3, first at the bottom of one recess end 1 A third wiring conductor 12 facing the electrode 4 and having the other end led out to the upper surface on which the lid 7 of the base 6 is attached, and a second electrode on the other recess side with one end on the lower surface of the lid 7 5 to face each other, the other end is provided with a fourth wiring conductor 15 which is derived such that the other end facing the third wiring conductors 12 on the lower surface of the lid 7 to be worn taken on the upper surface of the base member 6 Therefore, it is possible to connect a plurality of electrolyte members 3 in series by electrically connecting them. As a result, even when the power generation of each electrolyte member 3 is a minute voltage, the total voltage can be adjusted by series connection, so that the electricity electrochemically generated by the electrolyte member 3 can be kept in a good state. It can be taken out to the outside.

  In the present invention, a heater 14 is formed around at least one of the other end of the third wiring conductor 12 inside the base body 6 and around the other end of the fourth wiring conductor 13 inside the lid body 7 to control the current. It becomes possible to locally supply an amount of heat sufficient to melt and harden the conductive bonding material 15 for electrically connecting the gap between the third wiring conductor 12 and the fourth wiring conductor 13. As the pattern of the heater 14, the conductive bonding material 15 and the bonding material 17 such as a meander shape, a straight band shape, an arc-shaped band shape, a concentric circle shape, a spiral shape, etc. are uniformly formed. Any pattern shape that can be heated may be used, and various patterns can be used. Further, the heater 14 can be divided into a plurality of patterns in order to increase the locality of heat generation.

  The heater 14 can be made of gold, silver, palladium, platinum group metals or alloys thereof, or a high melting point metal such as tungsten, titanium, titanium nitride, or nickel. The heater 14 is formed with a power feeding portion (not shown) made of a material such as gold, silver, palladium, platinum, etc., and conduction is ensured by pressing and bringing a conduction terminal into contact with the power feeding portion. . Thereby, the temperature can be locally increased by applying a current to the heater 14. As a result, the heat generated by the heater 14 can prevent damage such as breaking of the low heat-resistant electrolyte member 3 and generating pinholes.

As the conductive bonding material 15, solder such as tin-silver alloy solder, tin-silver-copper alloy solder, low melting point brazing material such as gold-tin alloy brazing material, and high melting point brazing material such as silver-germanium alloy brazing material Conductive resin adhesive made by bonding conductive powder such as silver and copper with resin, metal foil such as gold, silver, aluminum, copper, mesh metal plate, metal foil adhesive tape, etc. it can. In order to reduce contact resistance and conduction resistance, the electrical resistance of the conductive bonding material 15 is preferably 10 mΩ / cm ² or less, and more preferably 1 mΩ / cm ² .

  As the bonding material 17, solder such as tin-silver alloy solder, tin-silver-copper alloy solder, low melting point brazing material such as gold-tin alloy brazing material, high melting point brazing material such as silver-germanium alloy brazing material, silicone, etc. Resin-based adhesives such as epoxy-based, polyimide-based, and acrylic-based adhesives, and thermoplastic adhesive sheets such as polyester-based resins. However, any material that can firmly bond the bonding electrodes 16 to each other may be used. If the pressure is about normal pressure after further curing, a material that can maintain airtightness is desirable.

  Further, the conductive bonding material 15 provided between the other end of the third wiring conductor 12 and the other end of the fourth wiring conductor 13 of the fuel cell container 2 is locally heated by the heater 14, so that the first 3 and the fourth wiring conductor are electrically connected and the base body 6 and the lid body 7 are attached, so that the electrical resistance and contact resistance of the joint portion of the third and fourth wiring conductors 12 and 13 are reduced. Voltage loss during power generation is suppressed, and as a result, power generation performance is improved. Moreover, the connection reliability in a junction part can be made high.

  Furthermore, by locally heating the bonding material 17 provided between the bonding electrode 16 on the substrate 6 side of the fuel cell container 2 and the bonding electrode 16 on the lid body 6 side by the heater 14, Since the joining electrode 16 on the lid body 7 side is joined and the base body 6 and the lid body 7 are attached, members such as an end plate and screws necessary for fixing the fuel cell container 2 become unnecessary, and the number of parts is reduced. , Small size and low profile. Therefore, it is possible to obtain the fuel cell 1 that can eliminate restrictions on the miniaturization of equipment and restrictions on design. Further, even after joining, repair can be easily performed by applying a current to the heater 14.

  Here, the electrical connection between the other end of the third wiring conductor 12 and the other end of the fourth wiring conductor 13 and the bonding electrode 16 on the base body 6 side and the lid body 7 side are performed simultaneously. In order to simplify the application of electric power, it is preferable that the heater 14 of each part is a continuous wiring. Furthermore, it is also possible to adjust the temperature required for curing the conductive bonding material 15 and the bonding material 17 by changing the resistance of the heater 14 in each part. The conductive bonding material 15 and the bonding material 17 may be the same material.

  As an apparatus (not shown) for manufacturing the fuel cell container 2, a load is applied to the base body 6 and the lid body 7 of the fuel cell container 2 so that they are in pressure contact with each other. 3 and the fourth wiring conductors 12 and 13 are electrically connected, or power is input to the heater 14 in a state where a load is applied to the base body 6 and the lid body 7 of the fuel cell container 2 and they are in pressure contact with each other. Thus, in order to electrically connect the third and fourth wiring conductors 12 and 13 and to join the joining electrode 16 on the base body 6 side and the lid body 7 side, a connection terminal capable of applying power to the heater 14 is provided on the surface. What is necessary is just to comprise the function to compress both the base | substrate 6 and the cover body 7 of the container 2 for fuel cells by the provided support part.

  At this time, in order to maintain sufficient contact between the first electrode 4 on the lower main surface of the electrolyte member 3 and the second electrode 5 on the upper main surface and the first wiring conductor 10 to the fourth wiring conductor 13, it is appropriate. Uniform weighting is required. In addition, the application of electric power to the heater 14 requires a current value and a time such that heat sufficient to melt the conductive bonding material 15 and the bonding material 17 is supplied in a short time. Further, the structure of the support portion is a heat insulating or heat radiating structure depending on the place where it contacts the fuel cell container 2 so that the conductive bonding material 15 and the bonding material 17 are locally heated by the heater 14. It is preferable.

  Therefore, when performing the reflow treatment, the electrolyte member 3 is subjected to a temperature load that is higher than the allowable level. Therefore, the electrolyte member 3 is easily damaged, and it is difficult to apply a necessary and sufficient load in the furnace. By using the apparatus for manufacturing the fuel cell container 2 of the present invention, the manufacturing process for manufacturing the fuel cell 1 is simplified without being restricted by the size and thickness of the fuel cell 1 and without damaging the electrolyte member 3. And cost reduction.

  In the fuel cell 1 of the present invention, the electrolyte member 3 is accommodated in a plurality of recesses of the fuel cell container 2, and the lower main surface and the upper main surface of the electrolyte member 3 are provided with the first fluid flow path 8 and the second fluid. The first and second wiring conductors 10 and 11 are arranged on the first and second electrodes 4 and 5, and the third and fourth wiring conductors 12 are arranged so that the respective fluids can flow between the flow paths 9. , 13 are electrically connected to the first and second electrodes 4, 5, respectively, and the other end of the third and fourth wiring conductors 12, 13 is connected to the upper surface around the recess of the base 6 while covering the recess. Since the lid 7 is attached, the fuel cell container 2 of the present invention as described above is provided with the features described above, which is small and robust, facilitates assembly of the fuel cell 1 and generates power. To obtain a highly reliable fuel cell 1 capable of improving performance Kill.

  With the above configuration, a small and robust fuel cell container 2 capable of accommodating the electrolyte member 3 as shown in FIG. 1 is obtained, and the fuel cell 1 of the present invention capable of high efficiency control is obtained.

  Next, the electronic apparatus of the present invention having the fuel cell 1 as a power source will be described.

  Since the electronic device of the present invention has the fuel cell 1 as a power source as described above, it is small, low-profile, and has a long period of time with the features of the fuel cell container 2 of the present invention as described above. An electronic device with excellent safety and convenience that can be stably operated can be obtained.

  Further, when the fuel cell 1 having a power source is provided with terminals for external connection (a positive terminal and a negative terminal) on at least one of the base body 6 and the lid body 7, the circuit board of the electronic device can be easily electrically connected. Connection is possible and attachment / detachment is free. Therefore, the fuel cell 1 can be easily replaced with a new one without using a facility equipped with special safety equipment, and the convenience of the electronic device can be enhanced.

  Furthermore, since a metal layer can be formed in various shapes and electrical characteristics by the metallization method or the like inside the base 6 of the fuel cell container 2, electrons functioning as resistance, capacitance, inductance, etc. inside the base 6. Circuit elements can be formed. Therefore, for example, when a large capacity capacitor is formed in parallel with the fuel cell 1 and the current output from the fuel cell 1 becomes insufficient, the insufficient current is compensated and the target output current is compensated. It is possible to ensure a current supply according to the above. In addition, since a booster circuit can be formed, a voltage necessary for the electronic device can be secured.

  In addition, when forming resistance, a capacitance, and an inductance in the inside of the base | substrate 6 in this way, it is preferable that the base | substrate 6 consists of glass ceramics.

  Specifically, the electronic device of the present invention includes portable electronic devices such as mobile phones, PDAs (Personal Digital Assistants), toys such as digital cameras, video cameras, and game machines, and notebook PCs (personal computers). ) And other portable printers, fax machines, televisions, communication equipment, audio-video equipment, electric appliances such as electric fans, and electronic equipment such as electric tools.

  In recent years, these electronic devices have been added with a function of displaying a moving image using a liquid crystal display device or the like. Such a video display consumes a large amount of power, so that an electronic device using a conventional storage battery cannot be operated in a short time, whereas the electronic device of the present invention supplies a very long time power. The fuel cell 1 that can be used is mounted, and even if a moving image is displayed, long-time operation is possible.

  For example, in the case of a mobile phone, a central processing unit (CPU), a control unit, a random access memory (RAM), a read-on memory (ROM), an input unit for inputting data operated by a user to the CPU, The antenna, the signal received by the antenna is demodulated and supplied to the control unit, the radio unit that modulates the signal supplied from the control unit and transmitted from the antenna, and the sound is generated based on the ringing signal from the control unit A speaker, a light emitting diode (LED) that is turned on, off, or blinking under the control of the control unit, a display unit that displays information by a signal from the control unit, a vibrator that vibrates by a drive signal from the control unit, and a user The voice signal from the control unit is transmitted to the control unit, the voice signal from the control unit is converted into voice and output, and the power source that supplies power to each unit The fuel cell 1 and the fuel cell container 2 of the present invention are incorporated in the power supply unit, so that the fuel cell 1 and the fuel cell container 2 are excellent in compactness, simplicity and safety. In addition, since it is possible to supply power for a long period of time with an even supply of fuel and high-efficiency electrical connection, the mobile phone can be reduced in size, height and weight.

  Also, considering that recent mobile phones are sufficient in terms of miniaturization and low profile, in the space generated by miniaturizing and reducing the height of the fuel cell 1 in this way, for example, a camera or video Electronic components having functions other than the telephone function such as the above can be newly incorporated, and further multi-function can be performed.

  Further, instead of newly incorporating electronic components, an impact absorbing material, an impact preventing member or the like can be provided so as to protect the main electronic circuit. In this case, it is also possible to have a structure that can make the impact resistance when a shock is applied to the mobile phone main body due to dropping or the like, the waterproofness when used in rain, etc. stronger than before.

  In addition, by making it possible to reduce the size of the electric circuit inside the mobile phone body, there are fewer restrictions on the external shape of the mobile phone body, for example, making the mobile phone a shape that is easy for an elderly person or child to grip. It becomes possible to make the outer shape excellent in design.

  Further, in the case where the structure of the power source is a structure in which the fuel cell 1 and the fuel cell container 2 are detachable as described above, if the spare fuel cell 1 and the fuel cell container 2 are prepared, When the battery runs out, etc., the spare fuel cell 1 and the fuel cell container 2 can be easily replaced, or the fuel cell 1 can be taken out and replenished or replaced, so that calls can be continued. Therefore, it is more convenient than a conventional battery that uses a storage battery as a power source.

  In addition, since the replaced (used) fuel cell 1 can be reused immediately by replenishing fuel, it is more convenient than charging, and resources can be used effectively. In addition, there is an advantage that it can be used in an emergency such as a long-term power outage due to a natural disaster or the like or outdoors.

  In the case of a notebook PC (personal computer), a personal computer main body, a first housing containing a keyboard for inputting predetermined data to the personal computer main body, data input by the keyboard, or a personal computer And a second housing containing a display for displaying data processed by the main body, the second housing is attached to the first housing so as to be openable and closable, and power is supplied to each part. The power supply unit is configured to be provided in the first casing, and the fuel cell 1 and the fuel cell container 2 are incorporated in the power supply unit. In this case, as in the above-described mobile phone, the fuel cell 1 and the fuel cell container 2 incorporated in the electronic device of the present invention are excellent in compactness, simplicity, and safety, and are evenly supplied with fuel and highly efficient electricity. Since long-term power supply can be achieved through connection, the laptop PC (personal computer) can be made smaller, lower in profile, lighter in weight and multi-functional, and the display can be increased in size and resolution. Correspondingly, a large current can be supplied stably over a long period of time, the display is easy to see, and the notebook PC (personal computer) has high convenience, such as a small weight and volume when carrying. It can be.

  If the fuel cell 1 and the fuel cell container 2 are detachable from the power source, the spare fuel cell 1 and the fuel cell container 2 of the present invention are prepared. In a situation where only a secondary battery such as a moving body such as a passenger aircraft is used, there is an advantage that it is possible to supply power for a much longer time than in the past. Further, even when used in a public place as described above, since it is excellent in safety, it can be used without being restricted and is extremely convenient.

  It should be noted that the present invention is not limited to the embodiments described above, and various modifications can be made without departing from the scope of the present invention. For example, the first fluid channel 8 and the second fluid channel 9 may be provided with an inlet from the side surface of the base body 6 or the lid body 7 in order to reduce the thickness of the entire fuel cell 1. According to this, it is effective in reducing the size especially for portable electronic devices. Furthermore, about the 1st and 2nd wiring conductors 10 and 11, you may arrange | position so that the other end derived | led-out to the outer surface of the base | substrate 6 and the cover body 7 may be pulled out to the side surface of the same side, respectively. According to this, wiring and flow paths can be gathered on one side surface of the fuel cell 1, facilitating miniaturization and protection of the joint to the outside, enabling a highly reliable design, The fuel cell 1 can operate stably for a period.

  A plurality of electrolyte members 3 are accommodated in the recesses of the base 6 and are electrically connected by the first and second wiring conductors 10 and 11 to obtain a high voltage or large current output as a whole. You may do it.

  In addition, as shown in a cross-sectional view in FIG. 2 as another example of the fuel cell container and the fuel cell according to the present invention, at least one of the first fluid channel 8 ′ and the second fluid channel 9 ′ is provided. An opening 18 in which a groove-like opening is formed in a distorted manner so as to face the lower main surface or the upper main surface of the electrolyte member 3 on the bottom surface of the recess of the base body 6 'or the lower surface of the lid 7'; A fluid introduction portion 18 formed from the opening 18 to the outer surface of the base body 6 ′ or the lid body 7 ′, and a fluid formed from the other opening portion 18 or the connecting portion 19 to the outer surface of the base body 6 ′ or the lid body 7 ′. The discharge unit 21 may be configured.

  Thereby, the supply and discharge of the fuel gas and the oxidant gas to the plurality of electrolyte members 3 arranged in a plane are connected by a three-dimensional fluid flow path formed inside the base body 6 ′ or the lid body 7 ′. Provided is a fuel cell 1 ′ that can be taken out safely and electrochemically and efficiently because it can be airtight without leaking to the outside using the part 19, the introduction part 20, and the discharge part 21. can do.

  Thereby, the fluid flow path between the plurality of electrolyte members 3 can be freely formed and combined three-dimensionally by the connecting portion 19, the introducing portion 20, and the discharging portion 21, depending on the arrangement of the electrolyte members 3. Thus, the fluid flow path can be formed with high density while maintaining the uniformity of the fuel supply, and the fuel cell 1 'can be reduced in height and size.

  Furthermore, since the third and fourth wiring conductors 12 'and 13' can be freely wired three-dimensionally, the plurality of electrolyte members 3 can be arbitrarily connected in series or in parallel. As a result, the overall output voltage and output current can be adjusted efficiently, and therefore the fuel cell container 2 ′ that can take out the electricity electrochemically generated by the electrolyte member 3 to the outside. And a fuel cell 1 ′.

  In addition, this invention is not limited to the example of the above embodiment, A various change may be added in the range which does not deviate from the summary of this invention.

It is sectional drawing which shows an example of embodiment of the fuel cell using the container for fuel cells of this invention. It is sectional drawing which shows the other example of embodiment of the fuel cell using the container for fuel cells of this invention. It is sectional drawing of the conventional fuel cell.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1,1 ': Fuel cell 2, 2': Fuel cell container 3: Electrolyte member 4: 1st electrode 5: 2nd electrode 6, 6 ': Base | substrate 7, 7': Lid body 8, 8 ': 1st Fluid flow path 9, 9 ': Second fluid flow path 10, 10': First wiring conductor 11, 11 ': Second wiring conductor 12, 12': Third wiring conductor 13, 13 ': Fourth wiring conductor 14 , 14 ': heater 15, 15': conductive bonding material 16, 16 ': bonding electrode 17, 17': bonding material

Claims (5)

A base made of ceramics having a plurality of recesses on the upper surface for accommodating an electrolyte member having a first electrode on the lower main surface and a second electrode on the upper main surface, and facing the lower main surface of the electrolyte member One end is disposed on the first fluid flow path formed from the bottom surface of the recess to the outer surface of the base, and the bottom surface of the recess facing the first electrode, and the other end is led out to the outer surface of the base. a first wiring conductor, and a cover member formed Ru from attached to ceramic covering the recess on the upper surface around said recess of said base, from said bottom surface of said lid which is opposed to the upper main surface of the electrolyte member A second fluid flow path formed over the outer surface of the lid, and a second wiring conductor having one end disposed on the lower surface of the lid facing the second electrode and the other end led to the outer surface of the lid And the first electrode at the bottom of the recess having one end. Oppositely, the other end is a third wiring conductor led out to the upper surface of the base body to which the lid is attached, and one end is opposed to the second electrode on the other concave portion on the lower surface of the lid. and, a container for a fuel cell to which the other end and a fourth wiring conductor derived so as to face the other end of the third wiring conductor on the lower surface of the lid to be worn taken on the upper surface of the base body is formed The fuel is characterized in that a heater is formed around at least one of the other end of the third wiring conductor inside the base and around the other end of the fourth wiring conductor inside the lid. Battery container.   By locally heating the conductive bonding material provided between the other end of the third wiring conductor and the other end of the fourth wiring conductor of the fuel cell container according to claim 1 by the heater, A method for joining fuel cell containers, wherein the third and fourth wiring conductors are electrically connected and the base body and the lid are attached.   2. The third and fourth wiring conductors are electrically connected by applying electric power to the heater in a state in which a weight is applied to the base body and the lid body of the fuel cell container according to claim 1 and the lid bodies are pressed against each other. An apparatus for manufacturing a container for a fuel cell, characterized by being connected. 2. The fuel cell container according to claim 1, wherein the electrolyte member is accommodated in a plurality of the recesses, and the first fluid flow is opposed to the lower main surface on which the first electrode of the electrolyte member is formed. Forming a path and forming the second fluid flow path so as to face the upper main surface on which the second electrode of the electrolyte member is formed, and the lower side of the first fluid flow path and the electrolyte member wherein between and the second fluid flow path and the electrolyte the upper major surface can flow each of the fluid between a way to Rutotomoni member, said first and second wiring conductor of the principal first and the second electrode, and the connected third and fourth wiring conductor, respectively electrically to said first and second electrodes, on the upper surface around said recess of the base body, covering the recess, claim 2. The fuel cell container according to 2
A fuel cell, wherein the lid is attached by connecting the other ends of the third and fourth wiring conductors using the joining method . An electronic apparatus comprising the fuel cell according to claim 4 as a power source.

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