Portable power supply based on integrated plate type metal-supported solid oxide fuel cell

Abstract

The invention discloses a portable power supply based on an integrated plate type metal-supported solid oxide fuel cell, and relates to the technical field of fuel cells. The power supply comprises one or more integrated plate type fuel cells, and the integrated plate type fuel cells are connected in series and in parallel and separated by gas distribution insulating plates. Each integrated plate type fuel cell comprises a metal support body and a plurality of cell pieces arranged on the surface of the metal support body, and the cell pieces are connected through conductive pieces; a reforming reaction porous area as well as a material inlet and a material outlet which are communicated with the reforming reaction porous area are arranged in the metal support body, the material inlet is detachably connected with the fuel bottle, and the material outlet is welded with the combustor. And the power led out by the integrated plate type fuel cell is supplied to the outside after being processed by the modulation output module. The power supply solves the problems of difficult high-temperature sealing, anode carbon deposition and heavy system 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 prospects in the fields of outdoor or emergency power supplies, military combat power supplies, mobile carrier power supplies and the like.

Description

Technical Field

[0001] The present invention relates to the technical field of solid oxide fuel cells, and in particular to a portable power source based on an integrated plate-type metal-supported solid oxide fuel cell. Background Art

[0002] Lithium batteries are one of the most important types of portable power sources at present. They are energy storage devices, but their capacity is limited, and the recycling of waste lithium batteries is still a major problem. In 2005, proton exchange membrane fuel cells (PEMFC) were used as portable weapon power sources, realizing portable mobile power sources that do not require external power supply charging. Since then, PEMFC has developed rapidly in the field of military portable power sources.

[0003] Among fuel cell portable power sources, proton exchange membrane fuel cells (PEMFC) and direct methanol fuel cells (DMFC) are the two most studied types of fuel cells for portable power sources due to their low operating temperatures. PEMFCs that use high-purity hydrogen as fuel are not only expensive, but also face challenges in storage and transportation of high-purity hydrogen; catalyst poisoning and methanol permeation through the electrolyte membrane are the biggest problems that hinder the large-scale application of DMFCs. Solid oxide fuel cells (SOFCs) are all-solid-state chemical reaction devices that directly convert the chemical energy of fuel and oxidant into electrical energy. They have the characteristics of high energy utilization, strong fuel adaptability, and no need for precious metal catalysts. They can overcome the shortcomings of the above two fuel cells as portable power sources.

[0004] Even so, the current ceramic-supported SOFCs supported by electrodes or electrolytes usually have slow start-stop speeds and insufficient thermal shock resistance. Flat-plate SOFCs with high power density output require multiple single cells to be connected in series through connectors to form a battery stack. The large sealing area, high-temperature sealing difficulties, and differences in thermal expansion coefficients between different components that cause battery rupture are still the key problems of flat-plate battery stacks. The direct use of hydrocarbon fuels such as methanol and gasoline forms carbon deposits on the active sites of the anode due to cracking during reforming, which deteriorates battery performance. In addition, the metal connectors stacked with the battery intervals, the metal end plates, and the thermal protection materials used to maintain the high-temperature operating environment of the battery stack cause the power-to-weight ratio of the power generation system to be low, which is also the main reason why SOFC is less used in the portable field and emergency power supply field.

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

[0006] In view of this, the present invention is proposed. Summary of the invention

[0007] The purpose of the present invention includes, for example, providing a portable power source based on an integrated plate-type metal-supported solid oxide fuel cell, which can effectively improve problems such as high-temperature sealing, has a fast start-stop speed, and has good thermal shock resistance, which is conducive to achieving lightweight and improving power-to-weight ratio.

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

[0009] In a first aspect, the present invention provides a portable power source based on an integrated plate-type metal-supported solid oxide fuel cell, comprising:

[0010] A plurality of integrated plate fuel cells; wherein each of the integrated plate fuel cells comprises a metal support and a plurality of battery cells arranged on both sides of the metal support, and the plurality of battery cells are connected by a conductive member;

[0011] The metal support is provided with a reforming reaction porous zone and a material inlet and a material outlet connected thereto; the surface of the metal support is provided with air holes, the air holes are connected to the reforming reaction porous zone, and the battery sheet covers the air holes;

[0012] An insulating layer is provided between the battery cell and the metal support, and the air holes penetrate through the insulating layer;

[0013] The material inlet is detachably connected to the fuel bottle; the material outlet is welded to the burner;

[0014] An air distribution insulation plate, wherein the air distribution insulation 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;

[0015] The electric power drawn from the integrated plate fuel cell is processed by the modulation output module and then supplied to the outside.

[0016] In an optional embodiment, the air distribution insulation board is provided with an air flow channel.

[0017] In an optional embodiment, the air flow channel includes a porous structure provided on the flat-plate-shaped air-cloth insulation board, or the air flow channel includes a plurality of channels formed by bending the air-cloth insulation board.

[0018] In an optional embodiment, the insulating layer completely covers the surface of the metal support; and the air holes penetrate the insulating layer.

[0019] In an optional embodiment, the battery sheet includes an anode, an electrolyte layer and a cathode, the anode completely covers the air permeable hole, and the electrolyte layer is disposed between the cathode and the anode;

[0020] A portion of the anode is covered by the electrolyte layer, and another portion exposed from the electrolyte layer is covered by the conductive member, and the conductive member is used to connect the anode and a cathode in an adjacent battery cell.

[0021] In an optional embodiment, the number of battery cells on a single side of the metal support is 2 to 64.

[0022] In an optional embodiment, it includes:

[0023] Inner shell; the inner shell is provided with a heat exchanger, a burner and the integrated plate fuel cell;

[0024] an outer shell, the outer shell enclosing the inner shell;

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

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

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

[0028] In an optional embodiment, the inner shell includes a first shell and a second shell, the first shell is provided with the integrated plate fuel cell; the second shell is provided with the heat exchanger, the burner and the first shell; and heat insulation cotton is provided between the first shell and the second shell;

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

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

[0031] 1. The portable power source based on the integrated plate-type metal-supported solid oxide fuel cell provided by the embodiment of the present invention has a reforming reaction porous zone for internal reforming arranged in the metal support body, each metal support body is separately provided with a reforming reaction porous zone, and the reforming reaction porous zone is located inside the metal support body, which solves the problem of high-temperature sealing, forms a self-sealing of the gas flow channel, and has good sealing performance. The number and weight of structural parts such as metal connectors, end plates, and sealing materials are reduced, and the external reformer is omitted, which further reduces weight, is conducive to achieving lightweight and improving the power-to-weight ratio. It is easy to carry and move, and can be used in outdoor or emergency power supplies, military combat power supplies, mobile vehicle power supplies and other fields.

[0032] 2. The portable power source adopts a metal support body, with fast start-stop speed and good thermal shock resistance. The reforming reaction porous area is located inside the metal support body, at a certain distance from the anode, which can reduce the carbon deposition phenomenon of the reforming reaction at the anode and improve the battery performance. Multiple integrated plate fuel cells are stacked and connected in series and parallel, and adjacent integrated plate fuel cells are isolated by gas-insulated plates to increase the output voltage of the power source and improve the power-to-weight ratio of the battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0034] Figure 1 A schematic diagram of the structure of an integrated plate fuel cell in a portable power source based on an integrated plate metal-supported solid oxide fuel cell provided in an embodiment of the present invention;

[0035] Figure 2 A schematic structural diagram of another perspective of an integrated plate fuel cell in a portable power source based on an integrated plate metal-supported solid oxide fuel cell provided by an embodiment of the present invention;

[0036] Figure 3 A schematic structural diagram of a single integrated plate fuel cell in a portable power source based on an integrated plate metal-supported solid oxide fuel cell provided in an embodiment of the present invention;

[0037] Figure 4 A schematic cross-sectional structure diagram of a single integrated plate fuel cell in a portable power source based on an integrated plate metal-supported solid oxide fuel cell provided in an embodiment of the present invention;

[0038] Figure 5 for Figure 4 A local enlarged schematic diagram of the middle A;

[0039] Figure 6 A schematic diagram of the overall structure of a portable power source based on an integrated plate-type metal-supported solid oxide fuel cell provided by an embodiment of the present invention;

[0040] Figure 7 A schematic diagram of the disassembled structure of a portable power source based on an integrated plate-type metal-supported solid oxide fuel cell provided in an embodiment of the present invention;

[0041] Figure 8 A schematic diagram of the working principle of the gas circuit of a portable power source based on an integrated plate-type metal-supported solid oxide fuel cell provided in an embodiment of the present invention.

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

[0043] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0044] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0045] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0046] In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. appear to indicate an orientation or position relationship, they are based on the orientation or position relationship shown in the accompanying drawings, or are the orientation or position relationship in which the product of the invention is usually placed when used. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0047] In addition, the terms “first”, “second”, etc., if used, are merely used to distinguish between the descriptions and should not be understood as indicating or implying relative importance.

[0048] It should be noted that, in the absence of conflict, the features in the embodiments of the present invention may be combined with each other.

[0049] Please refer to Figure 1 and Figure 2 , this embodiment provides a portable power source 20 based on an integrated plate metal-supported solid oxide fuel cell, which can be used in the fields of outdoor or emergency power supply, military combat power supply, mobile vehicle power supply, etc. The portable power source 20 based on an integrated plate metal-supported solid oxide fuel cell includes a battery stack 10, and the battery stack 10 includes one or more integrated plate fuel cells 100 and an air-insulated plate 150. Each integrated plate fuel cell 100 includes a metal support 110 and a plurality of battery cells 130 arranged on both sides of the metal support 110, and the plurality of battery cells 130 are connected by a conductive member 140. The plurality of battery cells 130 can be connected in series and parallel or in series in sequence. A reforming reaction porous zone 111 and a material inlet 113 and a material outlet 114 connected thereto are provided in the metal support 110. A vent hole 112 is provided on the surface of the metal support 110, and the vent hole 112 is connected to the reforming reaction porous zone 111, and the battery cell 130 covers the vent hole 112. The material inlet 113 is used to communicate with the fuel bottle 240; the material outlet 114 is used to communicate with the burner 250 by welding. The material inlet 113 is connected to the fuel bottle 240 in a detachable manner, which is convenient for replacing the fuel bottle 240 after the fuel is exhausted. The detachable connection method includes but is not limited to VCR pipe joint connection, 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 gas distribution insulation plate 150 is arranged between two adjacent integrated plate fuel cells 100, and multiple integrated plate fuel cells 100 are connected in series and parallel. The power drawn from the integrated plate fuel cell 100 is processed by the current modulation output module 280 and then supplied to the outside. The reforming reaction porous area 111 is located inside the metal support 110, which solves the problem of high-temperature sealing and forms a self-sealing of the gas flow channel with good sealing performance. There is no need to set end plates and connectors, etc., which is convenient for assembly, reduces the overall weight and volume, and is conducive to achieving lightweight and improving the power-to-weight ratio.

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

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

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

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

[0055] The multiple integrated plate-type fuel cells 100 are electrically connected in series and in parallel via highly conductive materials.

[0056] It should be noted that each metal support 110 is integrally formed, and after the material inlet 113 or the material outlet 114 is welded to the pipeline, the gas flow channel formed by the reforming reaction porous area 111 and the air vents 112 in the metal support 110 has good sealing performance. After multiple integrated plate fuel cells 100 are stacked, there is no need to seal between adjacent integrated plate fuel cells 100, which solves the problem of high temperature sealing difficulty.

[0057] Combination Figures 3 to 5 Optionally, the metal support 110 is conducive to improving the start-stop speed and improving the thermal shock resistance. The two opposite surfaces of the metal support 110 are respectively provided with insulating layers 120 to play an isolation and insulation role. A plurality of battery cells 130 are arranged on the side surface of the insulating layer 120 away from the metal support 110; the air holes 112 penetrate the insulating layer 120, so that the reformed synthesis gas in the reforming reaction porous area 111 can pass through the air holes 112 to reach the anode 131 of the battery cell 130.

[0058] Optionally, a transition metal layer 121 is provided between the metal support 110 and the insulating layer 120 , and the transition metal layer 121 can reduce the difference in thermal expansion coefficients between the insulating layer 120 and the metal support 110 , avoid structural stratification, and improve the reliability of the battery structure.

[0059] The material of the metal support 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 Al 2 O 3 , Y 2 O 3 、TiO 2 , Y 2 O 3 , partially stabilized ZrO 2 and Cr 2 O 3 At least one of .

[0060] Optionally, the battery cell 130 includes an anode 131, an electrolyte layer 132 and a cathode 133, the anode 131 completely covers the air vent 112, and the electrolyte layer 132 is disposed between the cathode 133 and the anode 131. A portion of the anode 131 is covered by the electrolyte layer 132, and another portion of the anode 131 exposed by the electrolyte layer 132 is covered by a conductive member 140, and the conductive member 140 is used to connect the anode 131 and the cathode 133 in the adjacent battery cell 130, so that several battery cells 130 on the metal support 110 are connected in series to form a single fuel cell. Optionally, the number of battery cells 130 on a single side of the metal support 110 is 2 to 64. The number of battery cells 130 on each metal support 110 is 4 to 128. The output voltage of each battery cell 130 is about 1V, and the output voltage of a single fuel cell on each metal support 110 is about 4 to 128V, which can greatly increase the output voltage of a single integrated plate battery.

[0061] Each conductive member 140 includes a connected solid segment 141 and a porous segment 142. The solid segment 141 covers the exposed portion of the anode 131 and part of the insulating layer 120. The porous segment 142 covers the side of the cathode 133 of the adjacent battery cell 130 away from the electrolyte layer 132. In this way, the solid segment 141 and the porous segment 142 can realize the electrical connection between the anode 131 and the cathode 133 of two adjacent battery cells 130. A plurality of conductive members 140 can realize the series connection of a plurality of battery cells 130. The cathode 133 of the first battery cell 130 and the anode 131 of the last battery cell 130 are led out to the power connection terminal 143 through the conductive member 140. Alternatively, the anode 131 of the first battery cell 130 and the cathode 133 of the last battery cell 130 are led out to the power connection terminal 143 through the conductive member 140.

[0062] It is easy to understand that the electrolyte layer 132 and the solid segment 141 of the conductive member 140 jointly cover the anode 131 and the insulating layer 120 located between adjacent anodes 131, and jointly 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 sealed and connected to the pipeline, which can ensure that the gas flow channel formed by the reforming reaction porous area 111 and the air permeable hole 112 has good sealing performance.

[0063] Combination Figures 6 to 8The embodiment of the present invention further provides a portable power source 20 based on an integrated plate-type metal-supported solid oxide fuel cell, comprising an inner shell 210 and an outer shell 220. The outer shell 220 wraps the inner shell 210, that is, 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. A fuel bottle 240, a desulfurizer 260 and an air pump 270 are arranged between the outer shell 220 and the inner shell 210. The fuel bottle 240 is connected to the desulfurizer 260, the desulfurizer 260 is connected to the heat exchanger 230, and the fuel bottle 240 is used to provide fuel gas to the integrated plate fuel cell 100 and the burner 250 respectively; the air pump 270 is connected to the heat exchanger 230; the air pump 270 is used to provide air to the integrated plate fuel cell 100 and the burner 250; the material inlet 113 is connected to the fuel bottle 240 and the air pump 270 respectively; the material outlet 114 is connected to the burner 250.

[0064] Optionally, the pipeline of the air pump 270 and / or the pipeline of the fuel bottle 240 are detachably connected to the material inlet 113, which is convenient for replacing the fuel bottle 240, etc. The material outlet 114 is welded to the pipeline connected to the burner 250 to improve the connection sealing. In this embodiment, each metal support 110 is provided with a material inlet 113 and a material outlet 114. The material inlet 113 and the material outlet 114 are arranged on opposite sides of the metal support 110. The material inlet 113 and the material outlet 114 are welded to the pipeline respectively, and the sealing is good. It can be understood that the pipeline of the air pump 270 and the pipeline of the fuel bottle 240 can be detachably connected to the material inlet 113 after being combined, or they can be detachably connected to the material inlet 113 respectively, which is not specifically limited here. The detachable connection includes but is not limited to the use of VCR pipe joint connection, clamping, threaded connection or bolt connection.

[0065] In this embodiment, a total inlet and a total outlet are respectively provided on the inner shell 210. The total inlet is respectively communicated with the material inlet 113 on each metal support 110, and the total outlet is respectively communicated with the material outlet 114 on each metal support 110. The total inlet and the total outlet are respectively detachably connected to the material pipeline. The material pipeline here includes a gas supply pipeline and an air supply pipeline.

[0066] Optionally, the inner shell 210 includes a first shell and a second shell, wherein the first shell is provided with a portable power source 20 based on an integrated plate-type metal-supported solid oxide fuel cell; the second shell is provided with a heat exchanger 230, a burner 250 and the first shell. Heat insulation cotton is provided between the first shell and the second shell to improve the heat insulation effect and facilitate the carrying and movement of the power source. And / or, the outer surfaces of the first shell and the second shell are respectively provided with heat insulation coatings to further improve the heat insulation effect.

[0067] It is understandable that only one of the heat insulation cotton and the heat insulation coating can be selectively provided, or both can be provided at the same time. In this embodiment, the gap between the first shell and the second shell is filled with heat insulation cotton and a heat insulation coating is also provided to further improve the heat insulation effect.

[0068] The thermal insulation coating includes a metal transition layer and a thermal barrier coating. The material of the metal transition layer is a nickel-based alloy material, including at least one of NiCr, NiAl, NiCrAlY and NiCoCrAlY. The thermal barrier coating material is Y 2 O 3 and partially stabilized ZrO 2 .

[0069] Optionally, the portable power supply 20 further includes a current modulation output module 280 and a flow valve, and the current modulation output module 280 is connected to the power output terminal of the portable power supply 20 based on the integrated plate metal supported solid oxide fuel cell. In this embodiment, the power generated by the portable power supply 20 based on the integrated plate metal supported solid oxide fuel cell is connected to the current modulation output module 280 through a wire, and after modulation, it provides electrical energy 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 is desulfurized by the desulfurizer 260 and then enters the heat exchanger 230, and the heat exchanger 230 preheats the hydrocarbon fuel gas. After preheating, the hydrocarbon fuel gas is divided into two paths, namely, the first path of gas and the second path of gas. The first path of gas leads to the material inlet 113 of the metal support 110, and the second path of gas directly enters the burner 250. The air in the air pump 270 enters the heat exchanger 230 for preheating, and the preheated air is divided into three paths. The first path of air and the second path of air both lead to the material inlet 113 of the metal support 110, and the third path of air directly enters the burner 250. Among them, the first path of air enters the reforming reaction porous area 111 inside the metal support 110, and then reforms and reaches the anode 131 along the air permeable hole 112. The second path of air enters the surface of the metal support 110 and reaches the cathode 133 of the battery cell 130 through the porous section 142 of the conductive member 140.

[0072] The first gas and the first air are evenly distributed to the corresponding reforming reaction porous area 111 of each battery cell 130 through the gas distribution channel inside the metal support 110 to undergo catalytic reforming reaction and generate synthesis gas, which enters each battery cell 130 area through the air permeable hole 112 to undergo electrochemical reaction. The first air is used to provide oxygen for the reforming reaction. The second air is used to provide oxygen for the electrochemical reaction. The unreacted gas and air enter the burner 250 together from the material outlet 114. After combustion, the high-temperature gas enters the heat exchanger 230 again for heat exchange, and is finally cooled by the condenser 290 and discharged from the tail pipe 291. Since the heat of the tail gas of the battery stack 10 burning in the burner 250 may not be enough to maintain the temperature of the heat exchanger 230, the second gas and the third air are used as the supplementary fuel of the burner 250, and burn in the burner 250 to release heat to ensure that the heat exchanger 230 can preheat the material entering the battery stack.

[0073] Optionally, the first gas route and the second gas route are provided with flow solenoid valves respectively. The first gas route is also provided with an air pressure detector and a temperature detector. The first air route and the third air route are provided with flow solenoid valves respectively. The first air route and the second air route share a flow solenoid valve. The first air route is also provided with an air pressure detector and a temperature detector shared with the second air route. In the figure, "S" represents a flow solenoid valve; "P" represents an air pressure detector; and "T" represents a temperature detector.

[0074] In summary, the portable power source 20 based on the integrated plate-type metal-supported solid oxide fuel cell provided by the embodiment of the present invention has the following beneficial effects, including:

[0075] 1. The portable power source 20 based on the integrated plate metal-supported solid oxide fuel cell provided in the embodiment of the present invention has a reforming reaction porous area 111 for internal reforming set in the metal support 110, and each metal support 110 is separately provided with a reforming reaction porous area 111, and the reforming reaction porous area 111 is located inside the metal support 110, which solves the problem of high-temperature sealing, forms a self-sealing of the gas flow channel, and has good sealing performance. The number and weight of structural parts such as metal connectors, end plates, and sealing materials are reduced, and the external reformer is omitted, which is conducive to achieving lightweight and improving the power-to-weight ratio. In addition, the gas flow channels of each metal support 110 are independent of each other. After multiple integrated plate fuel cells 100 are stacked, there is no need to seal the integrated plate fuel cells 100, which reduces the process difficulty and has reliable sealing.

[0076] 2. The portable power source 20 adopts a metal support body, has fast start-stop speed, good thermal shock resistance and good robustness. The reforming reaction porous zone 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 at the anode 131 and improve the battery performance. Multiple integrated plate fuel cells 100 are stacked and connected in series and parallel, and adjacent integrated plate fuel cells 100 are isolated by an air-insulated plate 150 to increase the output voltage of the stack and improve the power-to-weight ratio of the battery.

[0077] 3. The portable power source 20 has a wide range of fuel applications, including hydrocarbon fuels and pure hydrogen fuels. The battery has good performance, is easy to carry and move, and can be used in outdoor or emergency power supplies, military combat power supplies, mobile vehicle power supplies, and other fields.

[0078] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A portable power source based on an integrated plate-type metal-supported solid oxide fuel cell, characterized in that: include: A plurality of integrated plate fuel cells; wherein each of the integrated plate fuel cells comprises a metal support and a plurality of battery cells arranged on both sides of the metal support, and the plurality of battery cells are connected by a conductive member; The metal support is provided with a reforming reaction porous zone and a material inlet and a material outlet connected thereto; the surface of the metal support is provided with air holes, the air holes are connected to the reforming reaction porous zone, and the battery sheet covers the air holes; An insulating layer is provided between the battery cell and the metal support, and the air holes penetrate through the insulating layer; The material inlet is detachably connected to the fuel bottle; the material outlet is welded to the burner; An air distribution insulation plate, wherein the air distribution insulation 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 drawn from the integrated plate fuel cell is processed by the current modulation output module and then supplied to the outside.

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

3. The portable power source based on the integrated plate-type metal-supported solid oxide fuel cell according to claim 2, characterized in that: The air flow channel includes a porous structure provided on the flat-plate-shaped air-cloth insulation board, or the air flow channel includes a plurality of channels formed by bending the air-cloth insulation board.

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

5. The portable power source based on the integrated plate-type metal-supported solid oxide fuel cell according to claim 1, characterized in that: The battery sheet comprises an anode, an electrolyte layer and a cathode, wherein the anode completely covers the air permeable hole, and the electrolyte layer is arranged between the cathode and the anode; A portion of the anode is covered by the electrolyte layer, and another portion exposed from the electrolyte layer is covered by the conductive member, and the conductive member is used to connect the anode and a cathode in an adjacent battery cell.

6. The portable power source based on the integrated plate-type metal-supported solid oxide fuel cell according to claim 1, characterized in that: The number of battery cells on a single side of the metal support is 2 to 64.

7. A portable power source based on an integrated plate-type metal-supported solid oxide fuel cell according to any one of claims 1 to 6, characterized in that: Also includes: An inner shell, a heat exchanger and a burner arranged in the inner shell; an integrated plate fuel cell is arranged in the inner shell; an outer shell, the outer shell enclosing the inner shell; and a fuel bottle, a desulfurizer and an air pump disposed between the outer shell and the inner shell; The fuel bottle is connected to the desulfurizer, the desulfurizer is connected to the heat exchanger, the fuel bottle is used to provide fuel gas to the integrated plate fuel cell and the burner respectively; the air pump is connected to the heat exchanger; the air pump is used to provide air to the integrated plate fuel cell and the burner; the material inlet is connected to the fuel bottle and the air pump respectively; the material outlet is connected to the burner.

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

9. The portable power source based on the integrated plate-type metal-supported solid oxide fuel cell according to claim 7, characterized in that: The inner shell comprises a first shell and a second shell, wherein 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; And / or, outer surfaces of the first shell and the second shell are respectively provided with heat insulation coatings.

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