Portable power supply based on integrated planar metal supported solid oxide fuel cell

Abstract

A portable power supply based on integrated plate type metal support solid oxide fuel cell relates to the field of fuel cell technology. The power supply comprises one or more integrated plate type fuel cells, a plurality of integrated plate type fuel cells are connected in series and parallel and are separated by air distribution insulation plates. Each integrated plate type fuel cell comprises a metal support and a plurality of cell plates arranged on the surface of the metal support, the cell plates are connected by conductive members; the metal support is provided with a reforming reaction porous area and a material inlet and outlet communicated with the reforming reaction porous area, the material inlet is detachably connected with a fuel bottle, and the material outlet is welded with a burner. The power output from the integrated plate type fuel cell is processed by a modulation output module and supplied to the outside. The power supply solves the problems of high temperature sealing difficulty, anode carbon deposition and system bulkiness of the solid oxide fuel cell, has the advantages of compact structure, high safety, high power to weight ratio and the like, and has wide application prospect in the fields of outdoor or emergency power supply, military operation power supply, mobile vehicle power supply and the like.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of solid oxide fuel cell technology, in particular, to a portable power supply based on integrated plate type metal supported solid oxide fuel cell. BACKGROUND

[0002] Lithium battery as a portable power supply is one of the most main mobile power types at present, which belongs to the energy storage device, but its capacity is limited, and the recycling of waste lithium battery is still a big problem. Since 2005, proton exchange membrane fuel cell (PEMFC) has been used as a portable power supply, which realizes the portable mobile power supply without external power supply charging, and since then, PEMFC has been rapidly developed in the field of military portable power supply.

[0003] In the fuel cell portable mobile power supply, proton exchange membrane fuel cell (PEMFC) and direct methanol fuel cell (DMFC) are the two types of fuel cells most studied as portable power supply due to their low working temperature. PEMFC using high-purity hydrogen as fuel not only has high cost, but also has challenges in storage and transportation; and catalyst poisoning and methanol permeation through the electrolyte membrane are the biggest problems hindering the large-scale application of DMFC. Solid oxide fuel cell (SOFC) is a full solid chemical reaction device that directly converts the chemical energy of fuel and oxidant into electrical energy, which has the characteristics of high energy utilization rate, strong fuel adaptability, and no need for precious metal catalyst, and can overcome the shortcomings of the above two types of fuel cells as portable mobile power supply.

[0004] Even so, the current ceramic supported SOFC with electrode or electrolyte as support usually has slow start-stop speed and insufficient thermal shock resistance, and the flat plate SOFC with high power density output needs to be connected by a connector to form a cell stack by connecting multiple single cells in series, and the key problems of the flat plate cell stack are large sealing area, high temperature sealing difficulty, and difference in thermal expansion coefficient between different components, which causes the cell to crack. In addition, the use of metal connectors, metal end plates and thermal protection materials to maintain the high temperature operating environment of the cell stack results in a low power-to-weight ratio of the power generation system, which is also the main reason why SOFC is less used in portable and emergency power fields.

[0005] Therefore, how to design a new type of flat plate SOFC cell / cell stack with multiple functions to effectively solve the problems of slow start-stop, difficult cell stack sealing, anode carbon deposition, and low power-to-weight ratio is a technical problem faced by researchers in the field of solid oxide fuel cells.

[0006] In view of this, the present application is proposed. SUMMARY

[0007] The present application aims to provide a portable power supply based on integrated plate-type metal-supported solid oxide fuel cells, which can effectively improve high-temperature sealing and other problems, has fast start-stop speed, good thermal shock resistance, and is conducive to achieving lightweight and improving the power-to-weight ratio.

[0008] The embodiments of the present application can be implemented as follows:

[0009] In a first aspect, the present application provides a portable power supply based on integrated plate-type metal-supported solid oxide fuel cells, comprising:

[0010] a plurality of integrated plate-type fuel cells; wherein each of the integrated plate-type fuel cells comprises a metal support body and a plurality of cell pieces arranged on both sides of the metal support body, and the plurality of cell pieces are connected by a conductive piece;

[0011] The metal support body is provided with a reforming reaction porous area and a material inlet and a material outlet communicating with the reforming reaction porous area; the surface of the metal support body is provided with a gas permeable hole, the gas permeable hole communicates with the reforming reaction porous area, and the cell piece covers the gas permeable hole;

[0012] An insulating layer is provided between the cell piece and the metal support body, and the gas permeable hole penetrates the insulating layer;

[0013] The material inlet is detachably connected with a fuel bottle, and the material outlet is welded with a burner;

[0014] A gas distribution insulating plate is provided between two adjacent integrated plate-type fuel cells, and a plurality of integrated plate-type fuel cells are connected in series and / or in parallel;

[0015] The power generated by the integrated plate-type fuel cell is processed by a modulation output module and supplied to the outside.

[0016] In an optional embodiment, the gas distribution insulating plate is provided with an air flow channel.

[0017] In an optional embodiment, the air flow channel comprises a porous structure provided on the flat gas distribution insulating plate, or the air flow channel comprises a plurality of channels formed by bending the gas distribution insulating plate.

[0018] In an optional embodiment, the insulating layer completely covers the surface of the metal support body, and the gas permeable hole penetrates the insulating layer.

[0019] In an optional embodiment, the cell piece comprises an anode, an electrolyte layer and a cathode, the anode completely covers the gas permeable hole, and the electrolyte layer is arranged between the cathode and the anode.

[0020] Part of the anode is covered by the electrolyte layer, and another part of the electrolyte layer is exposed and covered by the conductive member for connecting the anode and the cathode in the adjacent cell.

[0021] In an optional embodiment, the number of cell pieces on the single side of the metal support body is 2 to 64.

[0022] In an optional embodiment, comprising:

[0023] An inner shell, wherein a heat exchanger, a burner and the integrated plate fuel cell are arranged in the inner shell;

[0024] An outer shell, wherein the outer shell wraps the inner shell;

[0025] A fuel bottle, a desulfurizer and an air pump arranged between the outer shell and the inner shell;

[0026] The fuel bottle is connected with the desulfurizer, the desulfurizer is connected with the heat exchanger, the fuel bottle is used for providing fuel gas to the integrated plate fuel cell and the burner respectively; the air pump is connected with the heat exchanger; the air pump is used for providing air to the integrated plate fuel cell and the burner; the material inlet is in communication with the fuel bottle and the air pump respectively; and the material outlet is in communication with the burner.

[0027] In an optional embodiment, the pipeline of the air pump and / or the pipeline of the fuel bottle is detachably connected with the material inlet, and the material outlet is welded with the pipeline connected with the burner.

[0028] In an optional embodiment, the inner shell comprises a first shell and a second shell, the integrated plate fuel cell is arranged in the first shell, the heat exchanger, the burner and the first shell are arranged in the second shell, and heat insulation cotton is arranged between the first shell and the second shell.

[0029] And / or, the outer surfaces of the first shell and the second shell are respectively provided with a heat insulation coating.

[0030] The beneficial effects of the embodiments of the present application include, for example:

[0031] 1. The portable power supply based on the integrated plate type metal support solid oxide fuel cell provided by the embodiment of the present application, wherein a reforming reaction porous area for internal reforming is arranged in the metal support body, each metal support body is separately provided with a reforming reaction porous area, and the reforming reaction porous area is located in the interior of the metal support body, thereby solving the problem of high-temperature sealing, forming self-sealing of the fuel gas flow channel, and having good sealing performance. The number and weight of structural components such as metal connectors, end plates and sealing materials are reduced, and an external reformer is omitted, thereby further reducing the weight and being conducive to realizing light weight and improving the power-to-weight ratio. The portable power supply is convenient to carry and move, and can be used in fields such as outdoor or emergency power supply, military combat power supply and mobile vehicle power supply.

[0032] 2. The portable power supply adopts a metal support body, has fast start-stop speed and good thermal shock resistance. The reforming reaction porous area is located in the interior of the metal support body and has a certain distance from the anode, thereby reducing the carbon deposition phenomenon of the reforming reaction on the anode and improving the performance of the battery. A plurality of integrated plate type fuel cell stacks are stacked and connected in series and parallel, adjacent integrated plate type fuel cells are isolated by a gas distribution insulation plate, the output voltage of the power supply is improved, and the power-to-weight ratio of the battery is improved. BRIEF DESCRIPTION OF DRAWINGS

[0033] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0034] Figure 1 The structure schematic diagram of the integrated plate type fuel cell in the portable power supply based on the integrated plate type metal support solid oxide fuel cell provided by the embodiment of the present application is shown in the figure.

[0035] Figure 2 The structure schematic diagram of the integrated plate type fuel cell in the portable power supply based on the integrated plate type metal support solid oxide fuel cell provided by the embodiment of the present application is shown in the figure.

[0036] Figure 3 The structure schematic diagram of the integrated plate type fuel cell in the portable power supply based on the integrated plate type metal support solid oxide fuel cell provided by the embodiment of the present application is shown in the figure.

[0037] Figure 4 The structure schematic diagram of the integrated plate type fuel cell in the portable power supply based on the integrated plate type metal support solid oxide fuel cell provided by the embodiment of the present application is shown in the figure.

[0038] Figure 5 The structure schematic diagram of the integrated plate type fuel cell in the portable power supply based on the integrated plate type metal support solid oxide fuel cell provided by the embodiment of the present application is shown in the figure. Figure 4 The local enlarged schematic diagram of A in the figure.

[0039] Figure 6 The overall structure schematic diagram of the portable power supply based on the integrated plate type metal support solid oxide fuel cell is provided for the embodiment of the present application;

[0040] Figure 7 The split structure schematic diagram of the portable power supply based on the integrated plate type metal support solid oxide fuel cell is provided for the embodiment of the present application;

[0041] Figure 8 The gas path working principle schematic diagram of the portable power supply based on the integrated plate type metal support solid oxide fuel cell is provided for the embodiment of the present application.

[0042] Figure: 10 - stack; 100 - integrated plate type fuel cell; 110 - metal support; 111 - reforming reaction porous area; 112 - gas permeable hole; 113 - material inlet; 114 - material outlet; 120 - insulation layer; 121 - transition metal layer; 130 - cell piece; 131 - anode; 132 - electrolyte layer; 133 - cathode; 140 - conductive piece; 141 - solid section; 142 - porous section; 143 - power connection end; 150 - air distribution insulation plate; 151 - air flow channel; 20 - portable power supply; 210 - inner shell; 220 - outer shell; 230 - heat exchanger; 240 - fuel bottle; 250 - combustor; 260 - desulfurizer; 270 - air pump; 280 - current modulation output module; 290 - condenser; 291 - tail gas pipe. DETAILED DESCRIPTION

[0043] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0044] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative labor are within the scope of protection of the present application.

[0045] It should be noted that: similar reference numerals and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0046] In the description of the present application, it should be noted that if the terms "upper", "lower", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present application is usually placed, only for the convenience of describing the present application and simplifying the description, and it is not intended to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0047] In addition, if the terms "first", "second" and the like appear, they are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0048] It should be noted that the features in the embodiments of the present application can be combined with each other without conflict.

[0049] Please refer to Figure 1 and Figure 2 The present embodiment provides a portable power supply 20 based on integrated plate type metal supported solid oxide fuel cell, which can be applied in outdoor or emergency power supply, military combat power supply, mobile vehicle power supply and the like. The portable power supply 20 based on integrated plate type metal supported solid oxide fuel cell includes a stack 10, and the stack 10 includes one or more integrated plate type fuel cells 100 and a gas distribution insulation plate 150. Each integrated plate type fuel cell 100 includes a metal support 110 and a plurality of cell sheets 130 arranged on both sides of the metal support 110, and the plurality of cell sheets 130 are connected by a conductive member 140. The plurality of cell sheets 130 can be connected in series and parallel or in series one by one. The metal support 110 is provided with a reforming reaction porous area 111 and a material inlet 113 and a material outlet 114 communicated with the reforming reaction porous area 111. The surface of the metal support 110 is provided with a gas permeable hole 112 communicated with the reforming reaction porous area 111, and the cell sheet 130 covers the gas permeable hole 112. The material inlet 113 is used for communication with a fuel bottle 240; and the material outlet 114 is used for welding communication with a burner 250. The material inlet 113 and the fuel bottle 240 are connected in a detachable manner, which is convenient for replacing the fuel bottle 240 after the fuel is used up. The detachable connection mode includes but is not limited to VCR pipe joint connection, and VCR is the abbreviation of Vacuum Coupling Radius Seal, which means vacuum connection radial seal. In this way, it is convenient to disassemble and replace, and has good sealing performance.

[0050] The air distribution insulation plate 150 is arranged between two adjacent integrated plate type fuel cells 100, and the integrated plate type fuel cells 100 are connected in series and in parallel. The power generated by the integrated plate type fuel cells 100 is processed by the current modulation output module 280 and then supplied to the outside. The reforming porous area 111 is arranged inside the metal support 110, which solves the problem of high-temperature sealing and forms a self-sealing gas flow channel with good sealing performance. The integrated plate type fuel cell 100 does not need to be provided with end plates and connecting bodies, which is convenient to assemble and reduces the overall weight and volume, and is conducive to realizing lightweight and improving the power-to-weight ratio.

[0051] In addition, the reforming porous area 111 is a certain distance away from the anode 131, which can reduce the carbon deposition phenomenon of the reforming reaction on the anode 131 and improve the performance of the cell. The integrated plate type fuel cells 100 are stacked and connected in series and in parallel, and the adjacent integrated plate type fuel cells 100 are isolated by the air distribution insulation plate 150, which improves the output voltage of the stack and improves the power-to-weight ratio of the cell. Since the reforming porous area 111 is arranged in the metal support 110, the external reformer can be omitted, which is conducive to reducing the overall weight.

[0052] The integrated plate type fuel cell 100 has a wide range of fuel applications and can be suitable for hydrocarbon fuels and pure hydrogen fuels. When using high-molecular hydrocarbon fuels, the reforming porous area 111 can be used as an internal reforming chemical reaction area. When using small-molecule fuels such as pure hydrogen, the reforming porous area 111 can be omitted or used as a fuel flow channel.

[0053] The air distribution insulation plate 150 is arranged between two adjacent integrated plate type fuel cells 100 and can play an insulating and isolating role and has a certain structural support, which can improve the structural strength and stability. In addition, it also has the function of gas flow distribution. Optionally, the air distribution insulation plate 150 is provided with an air flow channel 151. The air flow channel 151 is conducive to guiding the air at the material inlet 113 to the material outlet 114 for combustion by the burner 250, and is conducive to guiding the air at the material inlet 113 to the cathode 133 of the cell sheet 130 for electrochemical reaction.

[0054] Optionally, the air flow channel 151 includes a porous structure arranged on the flat air distribution insulation plate 150, or the air flow channel 151 includes a plurality of channels formed by bending the air distribution insulation plate 150. For example, the air distribution insulation plate 150 has a corrugated structure, and the air flow channel 151 is formed between adjacent wave crests and adjacent wave troughs. Of course, the air distribution insulation plate 150 can also be bent into a continuous U shape or V shape, which is not limited here.

[0055] The integrated plate type fuel cells 100 are connected in series and in parallel by high-conductivity materials.

[0056] It should be noted that each metal support body 110 is integrally formed, and after the material inlet 113 or the material outlet 114 is welded with the pipe, the gas flow channel formed by the reforming reaction porous area 111 and the gas permeable hole 112 in the metal support body 110 has good sealing performance. After the plurality of integrated plate type fuel cells 100 are stacked, the adjacent integrated plate type fuel cells 100 do not need to be sealed again, thereby solving the problem of high temperature sealing difficulty.

[0057] In combination Figures 3 to 5 Optionally, the metal support body 110 is beneficial to improve the start-stop speed and improve the thermal shock resistance. The opposite two side surfaces of the metal support body 110 are respectively provided with an insulating layer 120, which plays an insulating and isolating role. A plurality of cell sheets 130 are arranged on the side surface of the insulating layer 120 away from the metal support body 110; the gas permeable hole 112 penetrates through the insulating layer 120, so that the synthesis gas after the reforming reaction in the reforming reaction porous area 111 can pass through the gas permeable hole 112 to reach the anode 131 of the cell sheet 130.

[0058] Optionally, a transition metal layer 121 is arranged between the metal support body 110 and the insulating layer 120, and the transition metal layer 121 can reduce the difference in the thermal expansion coefficient between the insulating layer 120 and the metal support body 110, avoid structural delamination, and improve the reliability of the cell structure.

[0059] The material of the metal support body 110 is an iron-based or chromium-based alloy material, including at least one of SUS430, Croferr22, ZMG232 and T441. The material of the transition metal layer 121 is a Ni-based alloy material, including at least one of NiCr, NiCr, NiCrAlY and NiCoCrAlY. The material of the insulating layer 120 is a ceramic material, including at least one of Al2O3, Y2O3, TiO2, Y2O3, partially stabilized ZrO2 and Cr2O3.

[0060] Optionally, the cell sheet 130 includes an anode 131, an electrolyte layer 132 and a cathode 133, the anode 131 completely covers the gas permeable hole 112, and the electrolyte layer 132 is arranged between the cathode 133 and the anode 131. Part of the anode 131 is covered by the electrolyte layer 132, and another part of the electrolyte layer 132 is covered by a conductive piece 140, and the conductive piece 140 is used to connect the anode 131 and the cathode 133 in the adjacent cell sheet 130, so that a plurality of cell sheets 130 on the metal support body 110 are connected in series to form a single fuel cell. Optionally, the number of cell sheets 130 on a single side of the metal support body 110 is 2 to 64. The number of cell sheets 130 on each metal support body 110 is 4 to 128. The output voltage of each cell sheet 130 is about 1V, and the output voltage of a single fuel cell on each metal support body 110 is about 4 to 128V, which can greatly improve the output voltage of a single integrated plate type cell.

[0061] Each of the conductive members 140 comprises a solid section 141 and a porous section 142. The solid section 141 covers the exposed part of the anode 131 and the part of the insulation layer 120. The porous section 142 covers the cathode 133 of the adjacent cell 130 away from the electrolyte layer 132. In this way, the solid section 141 and the porous section 142 can realize the electrical connection of the anode 131 and the cathode 133 of the adjacent two cells 130. A plurality of the conductive members 140 can realize the series connection of several cells 130. The cathode 133 of the first cell 130 and the anode 131 of the last cell 130 are led out through the conductive member 140 to form the power connection end 143. Alternatively, the anode 131 of the first cell 130 and the cathode 133 of the last cell 130 are led out through the conductive member 140 to form the power connection end 143.

[0062] It is easy to understand that the electrolyte layer 132 and the solid section 141 of the conductive member 140 together cover the anode 131 and the insulation layer 120 between the adjacent anodes 131, and form a dense sealing layer. The metal support 110 is integrally formed, has a dense surface, and the material inlet 113 and the material outlet 114 are respectively sealingly connected with the pipeline, which can ensure that the gas flow channel formed by the reforming reaction porous area 111 and the gas permeable hole 112 has good sealing performance.

[0063] In combination Figures 6 to 8 , the embodiment of the present application further provides a portable power supply 20 based on the integrated plate type metal support solid oxide fuel cell, which comprises an inner shell 210 and an outer shell 220. The outer shell 220 wraps the inner shell 210, i.e. the inner shell 210 is arranged in the outer shell 220. The inner shell 210 is provided with a heat exchanger 230, a burner 250 and at least one integrated plate type fuel cell 100 as described above. The outer shell 220 and the inner shell 210 are provided with a fuel bottle 240, a desulfurizer 260 and an air pump 270. The fuel bottle 240 is connected with the desulfurizer 260, the desulfurizer 260 is connected with the heat exchanger 230, and the fuel bottle 240 is used to provide fuel gas to the integrated plate type fuel cell 100 and the burner 250 respectively; the air pump 270 is connected with the heat exchanger 230; the air pump 270 is used to provide air to the integrated plate type fuel cell 100 and the burner 250; the material inlet 113 is in communication with the fuel bottle 240 and the air pump 270 respectively; and the material outlet 114 is in communication with the burner 250.

[0064] Optionally, the pipe of the air pump 270 and / or the pipe of the fuel bottle 240 is detachably connected with the material inlet 113, facilitating the replacement of the fuel bottle 240 and the like. The material outlet 114 is welded with the pipe connected with the burner 250, improving the sealing property of the connection. In the embodiment, one material inlet 113 and one material outlet 114 are arranged on each metal support 110. The material inlet 113 and the material outlet 114 are arranged on the opposite sides of the metal support 110. The material inlet 113 and the material outlet 114 are respectively welded with the pipe, having good sealing property. It can be understood that the pipe of the air pump 270 and the pipe of the fuel bottle 240 can be combined together and then detachably connected with the material inlet 113, or can be respectively detachably connected with the material inlet 113, which is not specifically limited here. The detachable connection includes, but is not limited to, the connection by using a VCR pipe joint, clamping, threaded connection or bolt connection and the like.

[0065] In the embodiment, one total inlet and one total outlet are respectively arranged on the inner shell 210. The total inlet is in communication with the material inlets 113 on the metal supports 110, and the total outlet is in communication with the material outlets 114 on the metal supports 110. The total inlet and the total outlet are respectively detachably connected with the material pipe. The material pipe here includes the fuel gas supply pipe and the air supply pipe.

[0066] Optionally, the inner shell 210 includes a first shell and a second shell. The first shell is internally provided with the portable power supply 20 based on the integrated plate type metal support solid oxide fuel cell. The second shell is internally provided with the heat exchanger 230, the burner 250 and the first shell. The first shell and the second shell are provided with the heat insulation cotton therebetween, improving the heat insulation effect, facilitating the carrying and moving of the power supply. And / or, the outer surfaces of the first shell and the second shell are respectively provided with the heat insulation coating, further improving the heat insulation effect.

[0067] It can be understood that the heat insulation cotton and the heat insulation coating can be selectively provided with only one or both. In the embodiment, the heat insulation cotton is filled in the gap between the first shell and the second shell, and the heat insulation coating is also provided, further improving the heat insulation and heat preservation effect.

[0068] The heat insulation coating includes a metal transition layer and a thermal barrier coating layer. The material of the metal transition layer is a nickel-based alloy material, including at least one of NiCr, NiAl, NiCrAlY and NiCoCrAlY. The material of the thermal barrier coating layer is Y2O3 and partially stabilized ZrO2.

[0069] Optionally, the portable power source 20 further comprises a current modulation output module 280 connected to the power output of the portable power source 20 based on the integrated planar metal-supported solid oxide fuel cell, and a flow valve. In this embodiment, the power generated by the portable power source 20 based on the integrated planar metal-supported solid oxide fuel cell is connected to the current modulation output module 280 through a wire, and after modulation processing, provides power to external electrical appliances. The flow valve is used to control the flow of fuel and air. The flow valve can be an electromagnetic flow valve.

[0070] The working principle of the gas circuit of the portable power source 20 is as follows:

[0071] The hydrocarbon fuel gas in the fuel bottle 240 enters the heat exchanger 230 after desulfurization by the desulfurizer 260, and the heat exchanger 230 preheats the hydrocarbon fuel gas. After preheating, the hydrocarbon fuel gas is divided into two paths, i.e., the first path of fuel gas and the second path of fuel gas. The first path of fuel gas leads to the material inlet 113 of the metal support body 110, and the second path of fuel gas directly enters the combustor 250. The air in the air pump 270 enters the heat exchanger 230 for preheating, and the preheated air is divided into three paths, i.e., the first path of air and the second path of air both lead to the material inlet 113 of the metal support body 110, and the third path of air directly enters the combustor 250. Among them, the first path of air enters the reforming reaction porous zone 111 inside the metal support body 110 to occur after reforming along the gas permeation hole 112 to reach the anode 131. The second path of air enters the surface of the metal support body 110 through the porous section 142 of the conductive part 140 to reach the cathode 133 of the cell sheet 130.

[0072] The first path of fuel gas and the first path of air are uniformly distributed to the corresponding reforming reaction porous zone 111 of each cell sheet 130 through the gas distribution channel inside the metal support body 110 to occur catalytic reforming reaction, to generate synthesis gas, and the synthesis gas enters each cell sheet 130 zone to occur electrochemical reaction through the gas permeation hole 112. The first path of air is used to provide oxygen for the reforming reaction. The second path of air is used to provide oxygen for the electrochemical reaction. The unreacted fuel gas and air together enter the combustor 250 from the material outlet 114. After combustion, the high-temperature gas enters the heat exchanger 230 again for heat exchange, and finally is cooled by the condenser 290 and discharged through the tail gas pipe 291. Since the heat generated by the exhaust gas of the stack 10 in the combustor 250 may not be enough to maintain the temperature of the heat exchanger 230, the second path of fuel gas and the third path of air are used as supplemental fuel for the combustor 250, and the combustor 250 is combusted to release heat to ensure that the heat exchanger 230 can preheat the materials entering the stack.

[0073] Optionally, the first gas and the second gas are respectively provided with flow electromagnetic valves. The first gas is further provided with a gas pressure detector and a temperature detector. The first air and the third air are respectively provided with flow electromagnetic valves. The first air and the second air share a flow electromagnetic valve. The first air is further provided with a gas pressure detector and a temperature detector shared by the second air. In the figure, 'S' represents a flow electromagnetic valve; 'P' represents a gas pressure detector; and 'T' represents a temperature detector.

[0074] In summary, the portable power supply 20 based on the integrated plate type metal support solid oxide fuel cell provided by the embodiment has the following beneficial effects, including:

[0075] 1. The portable power supply 20 based on the integrated plate type metal support solid oxide fuel cell provided by the embodiment is provided with a reforming reaction porous area 111 of internal reforming in the metal support body 110. Each metal support body 110 is provided with a reforming reaction porous area 111, and the reforming reaction porous area 111 is located inside the metal support body 110, thereby solving the problem of high-temperature sealing, forming self-sealing of the gas flow channel, and having good sealing performance. The number and weight of structural components such as metal connectors, end plates and sealing materials are reduced, and an external reformer is omitted, which is conducive to realizing lightweight and improving the power-to-weight ratio. Moreover, the gas flow channels of each metal support body 110 are independent of each other, and after the plurality of integrated plate type fuel cells 100 are stacked, there is no need to seal the integrated plate type fuel cells 100, thereby reducing the process difficulty and improving the sealing reliability.

[0076] 2. The portable power supply 20 adopts a metal support body, has fast start-stop speed, good thermal shock resistance and good robustness. The reforming reaction porous area 111 is located inside the metal support body 110 and has a certain distance from the anode 131, which can reduce the carbon deposition phenomenon of the reforming reaction on the anode 131 and improve the battery performance. The plurality of integrated plate type fuel cells 100 are stacked and connected in series and parallel, adjacent integrated plate type fuel cells 100 are isolated by the gas distribution insulation plate 150, the output voltage of the stack is improved, and the power-to-weight ratio of the battery is improved.

[0077] 3. The fuel of the portable power supply 20 has a wide application range and can be suitable for hydrocarbon fuel and pure hydrogen fuel, etc. The battery has good performance, is convenient to carry and move, and can be used in fields such as outdoor or emergency power supply, military combat power supply and mobile vehicle power supply.

[0078] The above merely describes the specific embodiments of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which shall be covered within the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A portable power source based on an integrated planar metal-supported solid oxide fuel cell, characterized by, The application relates to a fuel cell system, comprising: a plurality of integrated plate-type fuel cells; wherein each of the integrated plate-type fuel cells comprises a metal support body and a plurality of cell pieces arranged on both sides of the metal support body, and the cell pieces are connected by conductive pieces; the metal support body is provided with a reforming reaction porous area and a material inlet and a material outlet communicated with the reforming reaction porous area; the surface of the metal support body is provided with air permeable holes communicated with the reforming reaction porous area, and the cell pieces cover the air permeable holes; the cell piece comprises an anode, an electrolyte layer and a cathode, the anode completely covers the air permeable holes, and the electrolyte layer is arranged between the cathode and the anode; a part of the anode is covered by the electrolyte layer, and another part of the electrolyte layer is covered by the conductive piece, and the conductive piece is used for connecting the anode and the cathode in the adjacent cell piece; an insulating layer is arranged between the cell piece and the metal support body, and the air permeable holes penetrate the insulating layer; the material inlet is detachably connected with a fuel bottle; and the material outlet is welded with a burner; an air distribution insulating plate is arranged between two adjacent integrated plate-type fuel cells, and a plurality of the integrated plate-type fuel cells are connected in series and in parallel; the electric power led out by the integrated plate-type fuel cell is processed by a current modulation output module and then supplied to the outside.

2. The portable power source based on integrated planar metal-supported solid oxide fuel cell according to claim 1, characterized in that, the air distribution insulating plate is provided with an air flow channel.

3. The portable power source based on integrated planar metal-supported solid oxide fuel cell according to claim 2, characterized in that, the air flow channel comprises a porous structure arranged on the air distribution insulating plate in a flat plate shape, or the air flow channel comprises a plurality of channels formed by bending the air distribution insulating plate.

4. The integrated-plate-type-metal-supported solid oxide fuel cell based portable power source according to claim 1, characterized by, the insulating layer completely covers the surface of the metal support body; and the air permeable holes penetrate the insulating layer.

5. The integrated-plate-type-metal-supported solid oxide fuel cell based portable power source according to claim 1, characterized by, the number of cell pieces on a single side of the metal support body is 2-64.

6. The integrated-plate-based metal-supported solid oxide fuel cell-based portable power source according to any one of claims 1 to 5, characterized by, the application further comprises: an inner shell, a heat exchanger arranged in the inner shell and a burner; the integrated plate-type fuel cell is arranged in the inner shell; an outer shell wrapping the inner shell; a fuel bottle, a desulfurizer and an air pump arranged between the outer shell and the inner shell; the fuel bottle is connected with the desulfurizer, the desulfurizer is connected with the heat exchanger, the fuel bottle is used for providing fuel gas to the integrated plate-type fuel cell and the burner respectively; the air pump is connected with the heat exchanger; the air pump is used for providing air to the integrated plate-type fuel cell and the burner; the material inlet is communicated with the fuel bottle and the air pump respectively; and the material outlet is communicated with the burner.

7. The portable power source based on integrated planar metal-supported solid oxide fuel cell according to claim 6, characterized in that, the pipeline of the air pump and / or the pipeline of the fuel bottle is detachably connected with the material inlet, and the material outlet is welded with the pipeline connected with the burner.

8. The portable power source based on integrated planar metal-supported solid oxide fuel cell according to claim 6, characterized in that, the inner shell comprises a first shell and a second shell, the first shell is provided with the integrated plate-type fuel cell, the second shell is provided with the heat exchanger, the burner and the first shell, and heat insulation cotton is arranged between the first shell and the second shell; and / or, the outer surfaces of the first shell and the second shell are respectively provided with heat insulation coating.

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