JP2005078836A - Container for fuel cell, fuel cell, and electronic apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a container for a fuel cell and the fuel cell enabling equal supply of fuel, efficient electrical connection and having high reliability, and also to provide an electronic apparatus having a small size, low height, and high function, and is stably usable. <P>SOLUTION: The container 2 for the fuel cell is equipped with: a base body 6 housing an electrolyte member 3 having first and second electrodes 4, 5; a first fluid passage 8; a first wiring conductor 10 installed in the opening periphery of the first fluid passage 8 on a bottom surface of a recessed part so as to come in contact with the first electrode 4; a third wiring conductor 10a installed in the opening periphery of the first fluid passage 8 on the lower surface of the base body 6; a first connecting conductor 10b connecting the first and third wiring conductors 10, 10a; a cover 7 airtightly sealing the recessed part; a second fluid passage 9; a second wiring conductor 11 installed in the opening periphery of the second fluid passage 9 on the lower surface of the cover 7 so as to come in contact with the second electrode 5; a fourth wiring conductor 11a installed on the opening periphery of the second fluid passage 9 on the upper surface of the cover 7; and a second connecting conductor 11b connecting the second and fourth wiring conductors 11, 11a. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

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

  In recent years, power consumption tends to increase as functions of portable electronic devices increase. In addition, secondary batteries need to be charged after a certain amount of power is used, and charging facilities and charging time are required. Therefore, many problems remain in long-time driving of portable electronic devices.

  Due to such demands, electronic devices such as mobile phones and notebook PCs (personal computers) equipped with small fuel cells as power sources have been proposed. The fuel cell can be used continuously as long as the supply of fuel and oxygen is continued. As small fuel cells, there are known polymer electrolyte fuel cells (hereinafter referred to as PEFC) and direct methanol fuel cells (hereinafter referred to as DMFC). Yes.

These fuel cells have a low operating temperature of about 80-100 ° C.,
(1) The output density is high, and it is possible to reduce the size and weight.
(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) Compared to other fuel cells, it can be started at room temperature, so the startup time is short.
It has excellent features such as For this reason, PEFC and DMFC take advantage of the above-mentioned features and are applied not only to driving power sources for vehicles and cogeneration systems for home use, but also to mobile phones, PDAs (Personal Digital Assistants), notebook PCs ( Personal computers), digital cameras, videos, and the like have been considered for use as power sources for portable electronic devices with outputs of several watts to tens of watts.

PEFC and DMFC are roughly classified into, 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. And a film-like electrolyte member (hereinafter, referred to as an electrolyte member) interposed between the fuel electrode and the air electrode. In the case of DMFC, here, a methanol (CH ₃ OH) aqueous solution is supplied to the fuel electrode, while (O ₂ ) in the atmosphere is supplied to the air electrode, thereby causing a predetermined reaction by an electrochemical reaction. Electric energy is generated (power generation), and electric energy serving as a driving power source (voltage / current) for the load is generated.

More specifically, when the fuel electrode methanol (CH 3 _OH) solution is supplied, as shown in the following chemical equation (1), electrons by the catalyst (e ^-) is separated hydrogen ions (protons; H ⁺ ) is generated, 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.

CH ₃ OH + H ₂ O → CO 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 under a relatively low temperature condition of about room temperature 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 membrane (for example, Nafion: trade name, manufactured by DuPont) or the like has been used.

  FIG. 4 is a sectional view showing the structure of a conventional fuel cell (PEFC). In the figure, 201 is a PEFC, 203 is an electrolyte member, 204 and 205 are arranged on the electrolyte member 203 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, 206 is a gas separator, 208 is a fuel flow path, and 209 is an air flow path.

  The gas separator 206 is provided so as to penetrate through the separator and the gas inflow / outflow frame that form the outer shape of the gas separator 206, the separator that separates the fuel channel 208 and the air channel 209, and the separator. The electrode is arranged so as to correspond to the fuel electrode 204 and the air electrode 205 of the electrolyte member 203. The fuel electrode 204 and the air electrode 205 of the electrolyte member 203 are stacked in large numbers via a gas separator 206 so that the fuel electrode 204 and the air electrode 205 are electrically connected in series and / or in parallel. A general PEFC body is a stack in which a stack is housed.

A fuel gas containing water vapor (a gas rich in hydrogen) is supplied from the reformer to the fuel electrode 204 through the fuel flow path 208 formed in the gas separator 206, and the air electrode 205 is supplied into the atmosphere through the air flow path 209. Then, air is supplied as an oxidant gas, and power is generated by a chemical reaction in the electrolyte member 203.
JP 2001-266910 A Special table 2001-507501 gazette

  However, the fuel cell 201 that has been conventionally proposed and developed as such a high-voltage, high-capacity battery is a large, large-sized battery having a stack structure and a large area, and is a small battery. Conventionally, the use of the fuel cell has been hardly considered.

  That is, in the conventional gas separator 206 in such a fuel cell 201, the side surface of the electrolyte member 203 is exposed to the outside in the laminated body in which the electrolyte member 203 is laminated using the gas separator 206. As a result, there is a problem that the mechanical reliability of the entire fuel cell 201 is difficult to be secured.

  In order to mount the fuel cell 201 on a portable electronic device, a fuel cell container that is different from conventional large-sized fuels 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, the fuel cell container is reduced in size and height to shorten the temperature rise to the operating temperature and to reduce the heat capacity. In the conventional fuel cell 201, the gas separator 206, which occupies most of the heat capacity, is thinned, particularly in the case of the gas separator 206 in which the flow path is formed by cutting on the surface of the carbon plate. Since it becomes brittle, a thickness of several mm is required. For this reason, there is a problem that it is difficult to reduce the size and height.

  Further, the output voltage of the fuel cell 201 is determined by the partial pressure of the gas supplied to the electrodes 204 and 205 on the front and back surfaces of the electrolyte member 203. That is, when the fuel gas supplied to the electrolyte member 203 travels through the gas flow path 208 and is consumed in the power generation reaction, the partial pressure of the fuel gas on the surface of the fuel electrode 204 decreases and the output voltage decreases. Similarly, when the air also travels through the air flow path 209 and is consumed, the partial pressure of oxygen on the surface of the air electrode 205 decreases and the output voltage decreases. Therefore, it is necessary to supply the fuel gas evenly. However, the gas separator 206 of the conventional fuel cell 201 has a flow path formed by cutting on the surface of the carbon plate. Since the groove of the passage becomes narrow, there is a problem that the flow passage resistance increases and uniform fuel supply is difficult.

  Further, a combination of the plurality of electrolyte members 203 and the opposed fuel electrode 204, air electrode 205, and gas separator 206 is arbitrarily and efficiently connected in series or in parallel to adjust the overall output voltage and output current. However, in the conventional fuel cell 201, in order to take out electricity from the fuel electrode and the air electrode sandwiching the electrolyte member 203, a method of connecting to the outside or connecting the gas separator 206 as a conductive material is used. There is only a method of connecting them in series, and it is difficult to connect to a motherboard or the like for forming an electronic circuit that is the main component of the electronic device in a limited space when used in a portable electronic device. There was also a problem.

  Further, in the electronic device using the conventional fuel cell 201, a current collecting plate for taking out electricity generated in the electrolyte member 203 to a mother board or the like for forming the main electronic circuit of the electronic device, and the fuel cell Insulating materials such as silicon rubber for insulating the container containing the gas, screws and fastening jigs for attaching the gas separator 206, the electrolyte member 203, the current collector plate and the insulating material to the fuel cell container ( There is a problem that the number of parts such as not shown) is large, and it is difficult to reduce the size and the height.

  As a method for adjusting the overall output voltage and output current, a plurality of combinations of the electrolyte member 203 and the opposed fuel electrode 204, air electrode 205, and gas separator 206 are arranged on the same plane. The technique is being studied. However, when arranged on the same plane in this way, it is effective in reducing the height as compared with the stack structure that has been widely used in the past, but an insulating member for ensuring insulation between adjacent electrolyte members 203 is newly provided. This causes a problem that the number of parts is further increased. Further, since the flow path processing is performed by machining or molding, the inner layer flow path processing in a planar direction that connects adjacent fuel cells cannot be performed, and a conductive material is used. In addition, there is a problem that it is impossible to integrate functions such as an electric circuit by mounting an electronic component or the like.

  In addition, when mounting such a fuel cell on a portable electronic device, the fuel cell is formed with a terminal for connection with a motherboard or the like for forming an electronic circuit that is the main component of the electronic device, and the portable electronic device It is necessary to provide a terminal corresponding to the connection terminal on the side, but the structure requires a relatively complicated design for both the terminal on the portable electronic device side and the terminal on the fuel cell container side. There was a problem. Furthermore, in the case of using a cartridge type in which the fuel cell can be freely attached / detached from the viewpoint of convenience when using a portable electronic device or carrying it, it is necessary to devise such a terminal that allows such attachment / detachment freely. Therefore, there is a problem that more difficulty occurs.

  Furthermore, the fuel supplied to the fuel electrode side is consumed with the power generation, and the power generation efficiency decreases as the concentration decreases. Therefore, in order to increase the power generation efficiency in the fuel cell, an oxygen supply mechanism that forcibly distributes oxygen to the air electrode and a fuel supply mechanism that forcibly supplies and supplies fuel to the fuel electrode are required. is there. However, since these forced oxygen and fuel supply mechanisms are bulky, the entire fuel cell also becomes large, which is inappropriate for use as a compact power source for portable electronic devices.

  The present invention has been completed in view of the problems of the conventional techniques as described above, and an object of the present invention is to provide a reliable fuel cell container that can perform uniform supply of fuel and highly efficient electrical connection, and It is an object of the present invention to provide a fuel cell using the same, and an electronic device using the fuel cell that is small, low in profile, high in function, and can be used stably.

  The first fuel cell container of the present invention includes a base body made of ceramics having a recess on the upper surface for accommodating an electrolyte member having first and second electrodes on the lower and upper main surfaces, respectively, and the lower portion of the electrolyte member. A first fluid channel formed from the bottom surface of the recess facing the side main surface to the outer surface of the base, and the first electrode in contact with the periphery of the opening of the first fluid channel on the bottom surface of the recess. A first wiring conductor formed in such a manner, a third wiring conductor formed in parallel to the first wiring conductor at a position located below the first wiring conductor of the base, and the first wiring conductor of the base A first connection conductor formed between one fluid flow path for connecting the first wiring conductor and the third wiring conductor, and an upper surface around the concave portion of the substrate covering the concave portion. A lid that hermetically seals the recess, and the electrolyte A second fluid flow path formed from the lower surface of the lid facing the upper main surface of the material to the outer surface of the lid, and around the opening of the second fluid flow path on the lower surface of the lid, A second wiring conductor formed so as to abut on the second electrode, and a fourth wiring conductor formed in parallel with the second wiring conductor at a position located above the second wiring conductor of the lid. And a second connection conductor formed between the second fluid flow paths of the lid and connecting the second wiring conductor and the fourth wiring conductor.

  The second fuel cell container of the present invention includes a base body made of ceramics having a concave portion for accommodating an electrolyte member having first and second electrodes on the lower and upper main surfaces, respectively, and the lower portion of the electrolyte member. A first fluid channel formed from the bottom surface of the recess facing the side main surface to the outer surface of the base, and the first electrode in contact with the periphery of the opening of the first fluid channel on the bottom surface of the recess. A first wiring conductor formed in such a manner, a third wiring conductor formed in parallel to the first wiring conductor at a position located below the first wiring conductor of the base, and the first wiring conductor of the base A first connection conductor formed on the inner peripheral surface of one fluid flow path for connecting the first wiring conductor and the third wiring conductor, and an upper surface around the concave portion of the base covering the concave portion. A lid body hermetically sealing the recessed portion, A second fluid flow path formed from the lower surface of the lid body facing the upper main surface of the denatured member to the outer surface of the lid body, and around the opening of the second fluid flow path on the lower surface of the lid body A second wiring conductor formed in contact with the second electrode, and a fourth wiring formed in parallel with the second wiring conductor at a position located above the second wiring conductor of the lid A conductor and a second connection conductor formed on the inner peripheral surface of the second fluid flow path of the lid body for connecting the second wiring conductor and the fourth wiring conductor are provided. And

  In the fuel cell of the present invention, an electrolyte member is accommodated in the recess of the fuel cell container of the present invention, and the lower and upper main surfaces of the electrolyte member are between the first and second fluid flow paths. The first and second wiring conductors are electrically connected to the first and second electrodes, respectively, and the concave portion is formed on the upper surface of the base around the concave portion. It is characterized in that the lid is attached so as to cover.

  The electronic device of the present invention has the fuel cell of the present invention as a power source.

  According to the first and second fuel cell containers of the present invention, a substrate made of ceramics having a recess on the upper surface for accommodating an electrolyte member having first and second electrodes on the lower and upper main surfaces, respectively, Since the upper surface around the concave portion of the base body is attached to cover the concave portion and hermetically seals the concave portion, the fuel cell container is hermetically sealed, so that the gas is sealed. Since there is no leakage of fluid, etc., and it is not necessary to provide a container such as a package in addition to this container, a fuel cell that can be operated efficiently can be obtained, and it is also effective for small size and low profile It becomes.

  In addition, since the electrolyte member can be housed in a box formed by a ceramic substrate having a recess and a lid body that seals the recess, the electrolyte member is exposed to the outside of the container. Thus, the mechanical reliability of the entire fuel cell is improved without being damaged. This also eliminates the need for a protective member for the fuel cell, and can provide a small and low-profile fuel cell.

  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 fluid flow paths is provided on the inner wall surface facing each other across the electrolyte member, the fluid supplied to the electrolyte member is uniform. Supplyability 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 or an aqueous methanol solution and air (oxygen) gas, the electrolyte member is on the lower side and There is an effect that a predetermined stable output voltage can be obtained without lowering each gas partial pressure supplied to the first and second electrodes respectively provided on the upper main surface.

  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 the base body and the lid body, each fluid flow path is excellent in hermeticity and originally two types of raw material fluids (for example, oxygen gas and the like) that should be isolated from each other in the flow path. (Hydrogen gas or methanol, etc.) is not mixed so that the function as a fuel cell is not manifested, and there is no risk of ignition or explosion after a flammable fluid is mixed at a high temperature. Therefore, a safe fuel cell can be provided.

  In addition, the first wiring conductor and the second wiring conductor are disposed around the opening of the first fluid channel on the bottom surface of the recess and around the opening of the second fluid channel on the bottom surface of the lid, By being formed so as to be in contact with the second electrode, the entire area of the electrolyte member excluding the first fluid channel and the second fluid channel opening of the second electrode, The wiring conductor and the second wiring conductor can be brought into direct contact and electrically connected. Therefore, the contact area between the first electrode and the first wiring conductor of the electrolyte member and the contact area between the second electrode and the second wiring conductor can be increased and can be directly connected, and the electrical resistance is increased and the contact is poor. Therefore, it is possible to provide a fuel cell having high power generation efficiency.

  In the first fuel cell of the present invention, the first wiring conductor and the second wiring conductor are formed between the first fluid flow path of the base and the second fluid flow path of the lid, and Positioned above the second wiring conductor of the lid and the third wiring conductor formed in parallel with the first wiring conductor at a position positioned below the first wiring conductor of the base via the second connection conductor Since the fourth wiring conductor formed in parallel with the second wiring conductor is connected to the portion to be connected, the wiring conductor disposed in the fuel cell container can be made to have a very low resistance. It is possible to connect a mother board or the like for forming an electronic circuit as a main component of the mounted electronic device and the electrolyte member with low resistance. As a result, it is possible to provide a fuel cell that can take out the electricity electrochemically generated by the electrolyte member to the outside in a good state.

  Furthermore, since the first connection conductor and the second connection conductor are formed between the first fluid flow paths of the base body and between the second fluid flow paths of the lid body, the first connection conductor and the second connection conductor are fuel or the like. Therefore, it is possible to effectively prevent corrosion and to stably take out the electricity electrochemically generated by the electrolyte member for a long time.

  In the second fuel cell of the present invention, the first wiring conductor and the second wiring conductor are formed on the inner peripheral surface of the first fluid channel of the base and the inner peripheral surface of the second fluid channel of the lid. The third wiring conductor formed in parallel with the first wiring conductor at the portion located below the first wiring conductor of the base and the second wiring of the lid through the first connecting conductor and the second connecting conductor The wiring conductor disposed in the fuel cell container has a very low resistance because it is connected to the fourth wiring conductor formed in parallel to the second wiring conductor at a position located above the conductor. It is possible to connect the mother board or the like for forming the main electronic circuit of the electronic device on which the fuel cell is mounted and the electrolyte member with low resistance. As a result, it is possible to provide a fuel cell that can take out the electricity electrochemically generated by the electrolyte member to the outside in a good state.

  Further, since the first connection conductor and the second connection conductor are formed on the inner peripheral surface of the first fluid channel and the inner peripheral surface of the second fluid channel, the first connection conductor and the second connection conductor are the base and The strength of the lid can be reinforced, and the occurrence of damage to the base body and the lid can be effectively suppressed. In addition, the distance between the first fluid flow paths and the second fluid flow paths can be further reduced, and the first fluid flow paths and the second fluid flow paths can be formed with higher density.

  According to the fuel cell of the present invention, the electrolyte member is accommodated in the recess of the fuel cell container of the present invention, and the lower and upper main surfaces of the electrolyte member are between the first and second fluid flow paths. Each of the first and second wiring conductors is electrically connected to the first and second electrodes so that fluid can exchange with each other. Since it is attached, it is small and robust, with the features of the fuel cell container according to the present invention as described above, and it is reliable to perform even supply of fuel and highly efficient electrical connection. A fuel cell can be obtained.

  Further, according to the electronic apparatus of the present invention, since the fuel cell of the present invention is provided as a power source, the above-described features of the fuel cell container of the present invention are small, low profile, and It is possible to obtain an electronic device that can be stably operated over a long period of time and that is further excellent in 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, when the substrate of the fuel cell container is composed of multilayer ceramics, the metal layer can be formed in various shapes and electrical characteristics on the surface of the ceramic layer located inside by a metallization method or the like. An electronic circuit element that functions as a resistor, a capacitance, an inductance, or the like 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.

  Next, the present invention will be described in detail with reference to the accompanying drawings.

  FIG. 1 is a cross-sectional view showing an example of an embodiment of the first fuel cell of the present invention. 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, 10a is the third wiring conductor, 10b is the first connecting conductor, 11 is the second wiring conductor, 11a is the fourth wiring conductor, 11b is the second connecting conductor, Reference numeral 12 denotes an external connection terminal.

  For example, the electrolyte member 3 faces 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). In addition, 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, the 2nd electrodes 4 and 5, and it can take out outside.

  The ion conductive film (exchange membrane) of the electrolyte member 3 is made of a proton conductive ion exchange resin such as perfluorocarbon sulfonic acid resin, for example, Nafion (trade name, 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 made of a conductive material carrying a catalyst such as platinum, palladium or an alloy thereof, for example, a porous body in which carbon fine particles are held by a hydrophobic resin binder such as polytetrafluoroethylene. It is configured.

  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 includes a base 6 having a recess and a lid body 7 attached to the upper surface around the recess so as to cover the recess, and the electrolyte member 3 is mounted inside the recess and hermetically sealed. has a role to stop, aluminum oxide _(Al 2 _{O 3)} sintered material, mullite _{(3Al 2 O 3 · 2SiO 2} ) sintered material, silicon carbide (SiC) sintered material, aluminum nitride (AlN) quality It is formed of a ceramic material such as a sintered body, a silicon nitride (Si ₃ N ₄ ) -based sintered body, or a glass ceramic sintered body.

  The fuel cell container 2 is composed of a base 6 having a recess and a lid 7, and covers the recess around the recess of the base 6 to attach the lid 7 so that the recess is hermetically sealed. Bonding with metal bonding materials such as silver brazing, bonding with resin materials such as epoxy, bonding with a seal ring made of iron alloy etc. on the upper surface around the recess with seam weld, electron beam, laser etc. The lid body 7 is attached to the base body 6 by a welding method or the like. 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, it is preferable that the bending strength, which is mechanical strength, is 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, in the case of an aluminum oxide sintered body, first, a rare earth oxide powder and a sintering aid are added to and mixed with the aluminum oxide powder, and then the raw material powder of the aluminum oxide sintered body Adjust. Next, an organic binder and a dispersion medium are added to the raw material powder of the aluminum oxide sintered body and mixed to form a paste. From this paste, an organic binder is added to the raw material powder by a press blade method, press forming, rolling forming, etc. Thus, a green sheet having a predetermined thickness is produced. The green sheet is punched by a die, micro drill, laser, or the like, and the first fluid passage 8 and the through holes as the second fluid passage 9, and the first connection conductor 10b and the second connection conductor. A through-hole for arranging 11b is formed. The first fluid channel 8 and the second fluid channel 9 may be grooves formed in a surface layer and an inner layer formed by punching with a mold, press molding, or the like.

When an aluminum oxide sintered body is used as the ceramic material, the first wiring conductor 10, the second wiring conductor 11, the third wiring conductor 10a, the fourth wiring conductor 11a, the first connection conductor 10b, and the second connection conductor 11b. Is preferably made of tungsten and / or molybdenum to prevent oxidation. In that case, for example, ₃ to 20 parts by mass of Al ₂ O ₃ and 0.5 to 5 parts by mass of Nb ₂ O ₅ with respect to 100 parts by mass of tungsten and / or molybdenum powder as inorganic components. A conductor paste is prepared by adding. This conductor paste is printed on the surface of the green sheet by screen printing, gravure printing, or the like in a predetermined pattern or filled into the through hole, whereby the first wiring conductor 10, the second wiring conductor 11, the third wiring conductor. 10a, the 4th wiring conductor 11a, the 1st connection conductor 10b, and the 2nd connection conductor 11b can be formed.

  The first wiring conductor 10, the second wiring conductor 11, the third wiring conductor 10a, the fourth wiring conductor 11a, the first connection conductor 10b, and the second connection conductor 11b are generated electrochemically in the electrolyte member 3. From the viewpoint of efficiently taking out the electricity to the outside, the specific electric resistance is preferably 0.1 milliΩcm or less. Examples of such materials include silver, silver-based metals, copper, and copper-based metals.

  Further, all including the first wiring conductor 10, the second wiring conductor 11, the third wiring conductor 10a, the fourth wiring conductor 11a, the first connection conductor 10b, the second connection conductor 11b, etc. formed in the fuel cell container 2 The volume of the conductor is preferably 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.

  In these conductor pastes, in order to improve the adhesion of the base 6 and the lid 7 to the ceramic, the same composition powder as the ceramic component forming the aluminum oxide powder or the base 6 or the lid 7 is, for example, 0 It is also possible to add 0.05 to 2% by volume.

  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. The first ceramic substrate 6 and the lid 7 and the first wiring conductor 10, the second wiring conductor 11, the third wiring conductor 10a, the fourth wiring conductor 11a, the first connection conductor 10b, and the second connection. A conductor 11b is obtained.

  Further, the external connection terminal 12 is 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 12 has a shape that allows good electrical connection with a motherboard or the like for forming an electronic circuit that is a main component 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 part of an electronic device. Is used. In addition, it is preferable to provide a fitting portion (a hole or the like) corresponding to the external connection terminal in a portion to which the external connection terminal 12 is connected in the electronic circuit that is the main of the electronic device. . Furthermore, by arranging the external connection terminal 12 on the side surface of the base body 6 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 which consist of ceramics shall be 0.2 mm or more in thickness. If the thickness is less than 0.2 mm, the strength tends to cover, so that the base 6 and the lid 7 tend to be easily cracked by the stress generated when the base 6 and the lid 7 are attached. . On the other hand, if the thickness exceeds 5 mm, it is difficult to reduce the height and height, making it difficult to use as a fuel cell mounted on a small portable device and increasing the heat capacity. It tends to be difficult to quickly set an appropriate temperature corresponding to the chemical reaction conditions.

  The first wiring conductor 10 and the second wiring conductor 11 are electrically connected to the first electrode 4 and the second electrode 5 of the electrolyte member 3, respectively, and the current generated by the electrolyte member 3 is supplied to the fuel cell container 2. It functions as a conductive path for taking it out.

  The first wiring conductor 10 is formed in contact with the first electrode 4 around the opening of the first fluid flow path 8 on the bottom surface of the recess of the base 6. Further, it is desirable to form it so as to be 10 μm or more higher than the bottom surface of the concave portion of the base 6 so that the first electrode 4 is easily contacted. In order to obtain this height, as described above, the printing conditions may be set to be thick when the conductor paste is formed by printing and coating.

  In addition, the first wiring conductor 10 is formed at a position located below the first wiring conductor 10 of the base 6 via the first connection conductor 10 b formed between the first fluid flow paths 8 of the base 6. It is connected to a third wiring conductor 10a formed in parallel to one wiring conductor 10, whereby the resistance of the wiring conductor connected to the first electrode 4 can be made very low, and the electrical loss is greatly reduced. Can be made. Desirably, the first connecting conductor 10b preferably has a diameter of φ50 μm or more.

  The second wiring conductor 11 is formed around the opening of the second fluid flow path 9 on the lower surface of the lid 7 so as to contact the second electrode 5. Further, it is desirable to form the lid 7 so as to be at least 10 μm higher than the main surface of the lid 7 on the second electrode 5 side so as to be easily brought into contact with the second electrode 5. In order to obtain this height, as described above, the printing conditions may be set to be thick when the conductor paste is formed by printing and coating.

  Further, the second wiring conductor 11 is located at a position located above the second wiring conductor 11 of the lid body 7 via the second connection conductor 11b formed between the second fluid flow paths 9 of the lid body 7. It is connected to the fourth wiring conductor 11a formed in parallel to the second wiring conductor 11, whereby the resistance of the wiring conductor connected to the second electrode 5 can be made very low, and the electrical loss is extremely low. Can be reduced. Desirably, the second connecting conductor 11b preferably has a diameter of φ50 μm or more.

  The first wiring conductor 10, the second wiring conductor 11, the third wiring conductor 10a, the fourth wiring conductor 11a, and the external connection terminal 12 have good conductivity on the exposed surfaces, corrosion resistance, and brazing material. When a metal such as nickel, copper, gold, platinum and palladium with good wettability is deposited by plating, these conductors and a mother board for forming an electronic circuit that is the main electronic device, etc. The electrical connection can be made good.

  The electrical connection between the first and second wiring conductors 10 and 11 and the first and second electrodes 4 and 5 is accommodated by sandwiching the electrolyte member 3 between the base 6 and the lid 7. The first and second wiring conductors 10 and 11 and the first and second electrodes 4 and 5 may be brought into pressure contact and electrically connected.

  In addition, a first fluid flow path 8 is formed inside the base body 6 so as to face the opening on the bottom surface of the recess. These first fluid flow paths 8 are passages of fluid supplied to the electrolyte member 3 such as a reformed gas rich in hydrogen gas or an oxidant gas such as air by a through hole or groove formed in the base 6. Or as a passage for fluid discharged from the electrolyte member 3 after the reaction, such as water produced by the reaction.

  A second fluid channel 9 is disposed on the main surface of the lid body 7 facing the second electrode 5, and the second fluid channel 9 is formed over each outer surface of the lid body 7. The second fluid channel 9 is provided as a fluid passage similar to the first fluid channel 8 by a through hole or groove formed in the lid body 7.

  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 allow fluid such as fuel gas and oxidant gas to be supplied to the electrolyte member 3 evenly. In addition, the diameter and number of through holes or the width, depth, and arrangement of the grooves may be determined according to the specifications of the fuel cell 1.

  In the fuel cell container 2 and the fuel cell 1, the first fluid channel 8 and the second fluid channel 9 preferably have a hole of φ0.1 mm or more in order to allow fluid to flow through the electrolyte member 3 with uniform pressure. It is good to arrange with a diameter and a constant interval.

  In this way, the first fluid flow path 8 is made to face the main surface on the side where the first electrode 4 of the electrolyte member 3 is formed, and the second fluid is made to face the main surface on the side where the second electrode 5 is formed. By forming the flow path 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. Or it will be discharged. For example, in the case of supplying a gas as a fluid, it is possible to prevent the partial pressure of the gas supplied to the first electrode 4 and the second electrode 5 of the electrolyte member 3 from decreasing, and a predetermined stable output voltage. Can be obtained. 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.

  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 incorporated in the electronic apparatus of the present invention capable of high efficiency control. Is obtained.

  Next, a second fuel cell of the present invention will be described with reference to FIG. Since the configuration of the second fuel cell is the same as that of the first fuel cell except for the first connection conductor 10b and the second connection conductor 11b, detailed description thereof is omitted.

  The first wiring conductor 10 is located at a position located below the first wiring conductor 10 of the base 6 via the first connection conductor 10 b formed on the inner peripheral surface of the first fluid flow path 8 of the base 6. The wiring conductor 10a is connected to the third wiring conductor 10a formed in parallel to the first wiring conductor 10, whereby the resistance of the wiring conductor connected to the first electrode 4 can be made extremely low, and the electrical loss is extremely low. Can be reduced. Desirably, the first connecting conductor 10b preferably has a diameter of φ50 μm or more.

  Further, the second wiring conductor 11 is positioned above the second wiring conductor 11 of the lid body 7 via the second connection conductor 11 b formed on the inner peripheral surface of the second fluid flow path 9 of the lid body 7. This is connected to the fourth wiring conductor 11a formed in parallel to the second wiring conductor 11, so that the resistance of the wiring conductor connected to the second electrode 5 can be made extremely low. Loss can be greatly reduced. Desirably, the second connecting conductor 11b preferably has a diameter of φ50 μm or more.

  The first and second connection conductors 10b and 11b have excellent corrosion resistance such as gold and platinum on the surface and electric conductivity in order to effectively prevent corrosion by the fuel flowing through the first and second fluid flow paths 8 and 9. It is preferable to deposit a high metal by plating or vapor deposition.

  Next, an electronic device according to the present invention having the fuel cell as a power source will be described.

  Since the electronic device of the present invention has the fuel cell as described above as a power source, it has various effects as described below and can be stably operated over a long period of time with a small size and a low profile. Furthermore, it is superior in safety and convenience.

  In the electronic device of the present invention, when a fuel cell 1 having a power source is provided with terminals for external connection (a positive electrode terminal and a negative electrode terminal) on at least one of the base body 6 and the lid 7, a circuit board of the electronic device Thus, the electrical connection can be easily performed, and the attachment and detachment can be freely performed. 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.

  Further, if the base 6 of the fuel cell container 2 is made of multilayer ceramics, the metal layer can be formed in various shapes and electrical characteristics by the metallization method or the like on the surface of the ceramic layer located inside. An electronic circuit element that functions as resistance, capacitance, inductance, or the like can be formed inside. Therefore, for example, when a large capacity capacitor is formed in parallel with the fuel cell, when the current output from the fuel cell 1 becomes insufficient, the insufficient current is compensated and the target output current is obtained. It is possible to ensure a corresponding current supply. 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 a glass ceramic sintered compact.

For example, 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 , 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 described 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 system (where M ³ is the same as above), Pb system gas Glass, Bi-based glass, and the like.

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.

  Moreover, it is preferable that the mixing ratio of these glass and a filler is 40: 60-99: 1 by mass ratio.

  As the organic binder blended in the glass ceramic green sheet, those conventionally used for ceramic green sheets can be used. For example, acrylic (acrylic acid, methacrylic acid or ester homopolymer or copolymer) Polymer, specifically acrylic ester copolymer, methacrylic ester copolymer, acrylic ester-methacrylic ester copolymer, etc.), polyvinyl butyral, polyvinyl alcohol, acrylic-styrene, polypropylene Examples include carbonate-based and cellulose-based homopolymers or copolymers.

  The glass ceramic green sheet is obtained by adding a predetermined amount of plasticizer and solvent (organic solvent, water, etc.) to the glass powder, filler powder, and organic binder as necessary to obtain a slurry, which is then used as a doctor blade, rolled, calender. It is obtained by molding to a thickness of about 50 to 500 μm with a roll, a die press or the like.

  In order to form a conductor pattern on the surface of the glass ceramic green sheet, for example, a paste of conductor material powder is printed by a screen printing method or a gravure printing method, or a metal foil having a predetermined pattern shape is transferred. A method is mentioned. Examples of the conductor material include one or more of Au, Ag, Pd, Pt, and the like. In the case of two or more, any form such as mixing, alloy, coating, etc. may be used.

  An internal circuit is preferably formed on the base 6 of the fuel cell 1. Thereby, the electronic component electrically connected to the internal circuit on the surface of the base 6 can be mounted. Therefore, the functionality of the electronic device can be improved by the electronic component mounted on the surface of the base 6.

  Moreover, it is preferable that an electronic component electrically connected to the internal circuit is provided on the surface of the base 6 of the fuel cell 1. As a result, as an electronic component, for example, using a sensor or a control IC, the concentration sensor detects the concentration of the fuel in the fluid flow path, thereby suppressing the optimum circulation, dilution of the fuel, and decrease in fuel utilization efficiency. It becomes possible to do.

  As described above, according to the electronic device of the present invention, an electronic device that is excellent in compactness, simplicity, and safety, and can be stably operated over a long period of time by an even supply of fluid and highly efficient electrical connection. Can be provided.

  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. It is equipped with a fuel cell that can perform long-time operation even when a moving image is displayed.

  As the electronic apparatus of the present invention, for example, in the case of a mobile phone, a central processing unit (CPU) 111, a control unit 112, a random access memory (RAM) 113, a read-on memory (see FIG. 3). ROM) 114, input unit 115 for inputting data operated by the user to CPU 111, antenna 116, and a signal received by antenna 116 is demodulated and supplied to control unit 112 and supplied from control unit 112 A radio unit 117 that modulates the received signal and transmits the signal from the antenna 116, a speaker 118 that makes a sound based on a ringing signal from the control unit 112, and a light emitting diode (LED) that is turned on, off, or blinks under the control of the control unit 112 ) 119, display unit 120 that displays information by a signal from control unit 112, and control unit 112 A vibrator 121 that vibrates by a drive signal, a user's voice is converted into a voice signal and transmitted to the control unit 112, a voice signal from the control unit 112 is converted into a voice and output, and each unit The power supply unit 123 supplies power, and the power supply unit 123 incorporates the fuel cell and the fuel cell container of the present invention.

  In this case, the fuel cell and the fuel cell container are excellent in compactness, simplicity and safety, and can supply power for a long time with an even supply of fuel and highly efficient electrical connection. It is possible to reduce the height and weight.

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

  Further, instead of newly incorporating an electronic component, an impact absorbing material, a 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 form an outer shape with excellent design.

  Further, when the structure of the power supply unit 123 is a structure in which the fuel cell and the fuel cell container are detachable as described above, if a spare fuel cell and the fuel cell container are prepared, the battery will run out. Can be easily replaced with a spare fuel cell and a fuel cell, or the fuel cell can be taken out and refueled or replaced. It is more convenient than those used as a power source.

  In addition, since the replaced (used) fuel cell 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 in a first casing, and a fuel cell and a fuel cell container are incorporated in the power supply unit. In this case, similar to the above-described mobile phone, the fuel cell and the fuel cell container incorporated in the electronic device of the present invention are excellent in compactness, simplicity and safety, and are long due to the uniform supply of fuel and highly efficient electrical connection. Since power can be supplied for a long time, the laptop PC (personal computer) can be made compact, low-profile, lighter and more multifunctional, and can accommodate larger displays and higher resolutions. It is possible to supply a large current stably and over a long period of time, making the display easy to see, and reducing the burden on the weight and volume when carrying the portable PC (personal computer). be able to.

  In addition, when the structure of the power supply unit is a structure in which the fuel cell and the fuel cell container are detachable, if the spare fuel cell and fuel cell container of the present invention are prepared, the mobile body such as outdoors or passenger aircraft can be used. In the situation where only the secondary battery is used, there is an advantage that it is possible to supply power for a long time dramatically compared to the conventional case. 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 above-described embodiments, and various modifications can be made without departing from the gist of the present invention. For example, the first fluid channel 8 and the second fluid channel 9 are possible. In order to reduce the overall height of the fuel cell, an inlet from the side surface of the base 6 or the lid 7 may be provided. This is effective in reducing the size especially for portable electronic devices. Further, the first to fourth wiring conductors 10, 11, 10a, and 11a are arranged so that the other ends led out to the outer surfaces of the base body 6 and the lid body 7 are drawn out to the side surfaces on the same side, respectively, and externally connected. The terminals 12 may be aggregated. According to this, wiring and flow paths can be integrated on one side of the fuel cell, facilitating miniaturization and protection of joints to the outside, enabling a highly reliable design, and The fuel cell can be operated stably.

  In the above-described embodiment, the example in which the third wiring conductor 10a and the fourth wiring conductor 11a are formed on the lower surface of the base body 6 and the upper surface of the lid body 7 is shown. Alternatively, a plurality of layers may be formed. When the third wiring conductor 10a and the fourth wiring conductor 11a are formed in a plurality of layers, the resistance of the wiring of the fuel cell 1 can be made lower.

  Furthermore, in the above-described embodiment, DMFC using methanol as a fuel is used as the fuel cell, but a fuel cell using various liquids such as dimethyl ether as fuel can also be used.

It is sectional drawing which shows an example of embodiment of the container for fuel cells of this invention, and the fuel cell of this invention using the same. It is sectional drawing which shows an example of embodiment of the container for fuel cells of this invention, and the fuel cell of this invention using the same. It is a block diagram which shows the example of embodiment of the electronic device of this invention. It is sectional drawing which shows the example of the conventional fuel cell.

Explanation of symbols

1: Fuel cell 2: Fuel cell container 3: Electrolyte member 4: First electrode 5: Second electrode 6: Substrate 7: Lid 8: First fluid channel 9: Second fluid channel 10: First wiring Conductor 10a: Third wiring conductor 10b: First connection conductor 11: Second wiring conductor 11a: Fourth wiring conductor 10b: Second connection conductor 12: External connection terminal 111: Central processing unit (CPU)
112: Control unit 113: Random access memory (RAM)
114: Read-on memory (ROM)
115: Input unit 116: Antenna 117: Radio unit 118: Speaker 119: Light emitting diode (LED)
120: Display unit 121: Vibrator 122: Transmission / reception unit 123: Power supply unit

Claims (4)

A base made of ceramics having a recess on the upper surface for accommodating an electrolyte member having first and second electrodes on the lower and upper main surfaces, respectively, and a bottom surface of the recess facing the lower main surface of the electrolyte member A first fluid passage formed over the outer surface of the substrate, a first wiring conductor formed around the opening of the first fluid passage on the bottom surface of the recess, and in contact with the first electrode; A third wiring conductor formed in parallel to the first wiring conductor at a position located below the first wiring conductor of the base and the first fluid flow path of the base; A first connecting conductor for connecting one wiring conductor and the third wiring conductor; a lid body that is attached to an upper surface around the concave portion of the base so as to cover the concave portion; , Facing the upper main surface of the electrolyte member A second fluid flow path formed from the lower surface of the body to the outer surface of the lid, and a periphery of the opening of the second fluid flow path on the lower surface of the lid so as to be in contact with the second electrode A second wiring conductor; a fourth wiring conductor formed in parallel to the second wiring conductor at a position located above the second wiring conductor of the lid; and the second fluid flow path of the lid. A fuel cell container comprising a second connection conductor formed between and connecting the second wiring conductor and the fourth wiring conductor. A base made of ceramics having a recess on the upper surface for accommodating an electrolyte member having first and second electrodes on the lower and upper main surfaces, respectively, and a bottom surface of the recess facing the lower main surface of the electrolyte member A first fluid passage formed over the outer surface of the substrate, a first wiring conductor formed around the opening of the first fluid passage on the bottom surface of the recess, and in contact with the first electrode; A third wiring conductor formed in parallel with the first wiring conductor at a position located below the first wiring conductor of the base and an inner peripheral surface of the first fluid flow path of the base; The first connection conductor that connects the first wiring conductor and the third wiring conductor, and the recess that is attached to the upper surface around the recess of the base so as to cover the recess is hermetically sealed. Opposite to the upper main surface of the lid and the electrolyte member A second fluid flow path formed from the lower surface of the lid body to the outer surface of the lid body, and a periphery of the opening of the second fluid flow path on the lower surface of the lid body so as to contact the second electrode A second wiring conductor formed, a fourth wiring conductor formed in parallel to the second wiring conductor at a position located above the second wiring conductor of the lid, and the second fluid of the lid A fuel cell container comprising a second connection conductor formed on an inner peripheral surface of a flow path for connecting the second wiring conductor and the fourth wiring conductor. An electrolyte member is housed in the recess of the fuel cell container according to claim 1 or 2, and the lower and upper main surfaces of the electrolyte member are respectively between the first and second fluid flow paths. The first and second wiring conductors are electrically connected to the first and second electrodes, respectively, and the upper surface around the recess of the base is covered with the recess. A fuel cell comprising the lid attached thereto. An electronic apparatus comprising the fuel cell according to claim 3 as a power source.

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