A LOHC fuel cell power generation device

Abstract

The present invention discloses a LOHC fuel cell power generation device, which releases hydrogen from an organic liquid material for hydrogen storage under the action of a catalyst and supplies it to the fuel cell for power generation. It includes an independent fuel cell chamber and a hydrogen storage and release chamber. A heat exchange structure is provided in the fuel cell chamber, and the heat exchange structure exchanges heat by contacting the liquid in the fuel cell chamber. A heat conduction structure is provided on the heat exchange structure, and the heat conduction structure penetrates out of the fuel cell chamber and inserts into the hydrogen storage and release chamber, and its end forms an enlarged end in the hydrogen storage and release chamber, and exchanges heat by contacting the liquid in the hydrogen storage and release chamber through the enlarged end. Different from the prior art, the present invention does not adopt the method of heat transfer by working fluid circulation, but directly uses a heat conduction structure for contact heat dissipation, and integrally sets the fuel cell chamber and the hydrogen storage and release chamber, thereby improving its integrity and reducing the problem of low heat transfer efficiency caused by too large a distance.

Description

Technical Field

[0001] The present invention belongs to the technical field of hydrogen fuel cells, and particularly relates to a LOHC fuel cell power generation device. Background Art

[0002] A hydrogen fuel cell is a power generation device that directly converts the chemical energy of hydrogen and oxygen into electrical energy. The working principle of a hydrogen fuel cell vehicle is as follows: Hydrogen is sent to the anode plate (negative electrode) of the fuel cell. Under the action of a catalyst (platinum), one electron in a hydrogen atom is separated. The hydrogen ion (proton) that loses the electron passes through the proton exchange membrane and reaches the cathode plate (positive electrode) of the fuel cell. However, electrons cannot pass through the proton exchange membrane. This electron can only reach the cathode plate of the fuel cell through an external circuit, thereby generating an electric current in the external circuit. After the proton reaches the cathode plate, it recombines with an oxygen atom and a hydrogen ion to form water. Since the oxygen supplied to the cathode plate can be obtained from the air, as long as hydrogen is continuously supplied to the anode plate, air is supplied to the cathode plate, and water (vapor) is removed in a timely manner, electric energy can be continuously provided. The electricity generated by the fuel cell is supplied to the motor through devices such as an inverter and a controller, and then drives the wheels to rotate through a transmission system, a drive axle, etc., so that the vehicle can travel on the road.

[0003] The principle of a hydrogen fuel cell is similar to that of an existing fuel cell. However, since its reaction products are environmentally friendly, it is developed as the most ideal power generation technology. However, the engineering application and social promotion of this technology are difficult. The main reason is that the transportation and storage of hydrogen itself are difficult. Since hydrogen is not a primary energy source, it must be produced directly or indirectly from a primary energy source. In most cases, the energy production location is separated from the consumption location. How to store the produced hydrogen resources and safely transport them to the consumption location is a difficult point in the hydrogen energy industry chain.

[0004] At present, the relatively promising methods for hydrogen storage are roughly as follows: storing high-pressure hydrogen in high-pressure gas cylinders; storing liquid hydrogen in low-temperature containers; storing hydrogen in the form of metal hydrides by using metals or metal alloys; storing hydrogen through a hydrogenation reaction by using an organic liquid hydrogen carrier. Among them, the technical route of using an organic liquid hydrogen carrier to achieve hydrogen storage has the advantages of high hydrogen storage capacity in terms of volume and mass and good compatibility of the raw material system with the existing oil product transportation system, and has received extensive attention from scientific research personnel and industrial personnel.

[0005] Since the internal temperature of the organic liquid hydrogen carrier gradually decreases during the release reaction process, and too low a temperature will affect the hydrogen release efficiency, in the prior art, the heat released during the fuel cell reaction process is transferred to the hydrogen release reactor, so as to achieve heat compensation and enable continuous release. However, in the prior art, the heat exchange is carried out by means of working fluid circulation. This method not only has low efficiency, but also because existing hydrogen fuel cells all use several independent compartments for reaction power generation, and each compartment has a small volume, it is impossible to set up an independent chamber for the working fluid to enter for heat exchange. If the heat exchange cycle is carried out outside the existing compartments, the efficiency is low, resulting in a low amount of heat obtained by the hydrogen release reactor and unable to carry out a stable reaction. Summary of the Invention

[0006] In order to solve the problems existing in the prior art, the present invention provides an LOHC fuel cell power generation device. Through the independently arranged heat exchange structure, it can be applied to the existing hydrogen fuel cell structure for stable heat exchange, and the heat is continuously transferred to the hydrogen storage and release chamber through the heat conduction structure, so as to realize stable hydrogen release, and cooperate with the external hydrogen storage pipeline to continuously supply hydrogen for the fuel cell reaction.

[0007] The technical solution adopted by the present invention is as follows:

[0008] In the first aspect, the present invention discloses an LOHC fuel cell power generation device, which releases hydrogen from the organic liquid material for hydrogen storage under the action of a catalyst and supplies it to the fuel cell for power generation. It includes an independent fuel cell chamber and a hydrogen storage and release chamber. A heat exchange structure is arranged in the fuel cell chamber, and the heat exchange structure exchanges heat with the liquid in the fuel cell chamber;

[0009] A heat conduction structure is arranged on the heat exchange structure. The heat conduction structure penetrates out of the fuel cell chamber and is inserted into the hydrogen storage and release chamber, and its end forms an enlarged end in the hydrogen storage and release chamber, and exchanges heat with the liquid in the hydrogen storage and release chamber through the enlarged end.

[0010] The present invention is different from the prior art. It does not adopt the method of heat transfer by means of working fluid circulation, but directly uses the heat conduction structure for contact heat dissipation, and integrally sets the fuel cell chamber and the hydrogen storage and release chamber, so as to improve its integrity and reduce the problem of low heat transfer efficiency caused by too large a distance.

[0011] Among them, the so-called organic liquid material for hydrogen storage refers to a liquid material specifically used for reversible reaction with hydrogen under the action of a catalyst to achieve the effect of hydrogen storage. Generally, this reaction is carried out under normal temperature and pressure, and the hydrogen storage capacity per unit volume is relatively high. As a new way of hydrogen transportation and storage, it has good application prospects. Generally, the commonly used organic liquid materials for hydrogen storage are toluene or naphthalene, which form products such as methylcyclohexane and decalin under the action of some metal catalysts and are transported and stored at normal temperature and pressure. The power generation device in the present invention has the power generation function of a fuel cell, and can continuously add this organic liquid material for hydrogen storage to carry out the reaction of continuously releasing hydrogen, and cooperate with external equipment such as pipelines, pumping devices and storage tanks to realize the supply, transportation and storage of raw materials, so as to continuously input the organic liquid material for hydrogen storage into the hydrogen storage release bin for reaction to release hydrogen, and recycle and store the reacted liquid material. At the same time, after the external equipment temporarily stores the hydrogen and adjusts the air pressure, it is then input into the fuel cell bin together with oxygen for continuous reaction and power generation. The relative volume ratio of the fuel cell bin to the hydrogen storage release bin can be adjusted according to the actual situation, and the staff adjusts the appropriate raw material transportation volume according to the situation to ensure that the fuel cell continuously works and generates heat, and maintains the temperature in the hydrogen storage release bin under the optimal temperature conditions for the hydrogen release reaction.

[0012] Combined with the first aspect, the present invention provides the first implementation manner of the first aspect. The fuel cell bin is an independent module, and is provided with an electrode connected to an external circuit and a gas pipe and a water pipe communicated with an external pipeline.

[0013] The power generation device presses and fixes a plurality of fuel cell bins through a provided pressure bin shell, and presses a plurality of fuel cell bins from both sides through pressing plates locked by screws provided on both sides.

[0014] Combined with the first implementation manner of the first aspect, the present invention provides the second implementation manner of the first aspect. The hydrogen storage release bin is an independent container matching a single fuel cell bin. There are a plurality of hydrogen storage release bins in the power generation device, and all hydrogen storage release bins exhaust gas and supply liquid through a unified pipeline.

[0015] Combined with the first implementation manner of the first aspect, the present invention provides the third implementation manner of the first aspect. The power generation device has a single hydrogen storage release bin, and the enlarged ends of the heat exchange structures in all fuel cell bins are inserted into the same hydrogen storage release bin.

[0016] Combined with the first, second or third implementation manner of the first aspect, the present invention provides the fourth implementation manner of the first aspect. The fuel cell bin includes an outer cover formed by two parts being hermetically buckled, and an electrode and a proton exchange membrane are provided inside the outer cover;

[0017] The heat exchange structure is arranged close to the electrode and matches the shape of the electrode.

[0018] Combined with the fourth embodiment of the first aspect, the present invention provides a fifth embodiment of the first aspect, wherein the electrode is in a rod-shaped structure, and the heat exchange structure is a hollow cylindrical structure nested outside the electrode.

[0019] Combined with the fourth embodiment of the first aspect, the present invention provides a sixth embodiment of the first aspect, wherein the electrode is in a sheet-shaped structure, and the heat exchange structure is a heat spreader provided on the inner wall of the outer cover, and the electrode is arranged close to the heat spreader.

[0020] Combined with the sixth embodiment of the first aspect, the present invention provides a seventh embodiment of the first aspect, wherein a plurality of convex structures are provided on the heat spreader, and the convex structures abut against one side surface of the electrode.

[0021] Combined with the seventh embodiment of the first aspect, the present invention provides an eighth embodiment of the first aspect, wherein a sunken groove is provided on the inner wall of the outer cover, and a sealing plate is provided on the opening of the sunken groove, and the sunken groove is covered by the sealing plate to form a cavity in the sunken groove;

[0022] The heat spreader is arranged in the cavity, and an opening is provided on the sealing plate for the end surface of the heat spreader coated with an anti-corrosion coating to expose from the opening.

[0023] Combined with the eighth embodiment of the first aspect, the present invention provides a ninth embodiment of the first aspect, wherein the heat conduction structure is a heat pipe, and the evaporation end of the heat pipe is attached to the heat spreader in the cavity of the sunken groove;

[0024] The hydrogen storage and release chamber includes a catalytic chamber, and the condensation end of the heat pipe is arranged in the catalytic chamber. The condensation end is a plurality of sub-tubes connected to one end of the heat pipe, and the plurality of sub-tubes are connected to a plurality of catalytic fins arranged in the catalytic chamber for heat exchange;

[0025] The catalytic fin includes a heat conduction layer as a swollen end and a catalytic layer attached to the surface of the heat conduction layer.

[0026] The beneficial effects of the present invention are as follows:

[0027] (1) By combining the fuel cell with the hydrogen storage and release reactor, the present invention transfers the heat in the fuel cell reaction to the hydrogen storage and release reactor to maintain the reaction temperature, thereby reducing energy consumption and improving power generation efficiency;

[0028] (2) Different from the existing working fluid flow heat exchange method, the present invention is designed with an integrated structure, and a corresponding heat exchange structure is configured for each fuel cell chamber as an independent sealing module, so as to be applicable to the existing fuel cell structure. Compared with the ordinary working fluid heat exchange method, its heat exchange efficiency is higher and it has practicability. Description of the Drawings

[0029] Figure 1is a top view of the entire power generation module in an embodiment of the present invention;

[0030] Figure 2 is a side view of the entire power generation module in an embodiment of the present invention;

[0031] Figure 3 is an axonometric diagram of the entire power generation module in an embodiment of the present invention;

[0032] Figure 4 This is an internal axonometric view of the entire power generation module after cutting through the pressure bin shell in an embodiment of the present invention;

[0033] Figure 5 is an axonometric diagram of a single fuel power generation unit in an embodiment of the present invention;

[0034] Figure 6 is a perspective view of a single fuel power generation unit according to an embodiment of the present invention;

[0035] Figure 7 This is an axonometric view of a single fuel power generation unit with half of its outer cover removed in an embodiment of the present invention;

[0036] Figure 8 It is a split schematic diagram of half of the outer cover and corresponding structure of a single fuel power generation unit in an embodiment of the present invention.

[0037] In the figure: 1-pressing silo shell, 2-outer cover, 3-strip hole, 4-catalytic silo, 5-cover plate, 6-catalytic part, 7-heat pipe, 8-sub-tube, 9-catalytic fin, 10-heat plate, 11-sealing plate. DETAILED DESCRIPTION

[0038] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments.

[0039] To make the objectives, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Generally, 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.

[0040] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in the present application without making any creative efforts shall fall within the scope of protection of the present application.

[0041] It should be noted that like reference numerals and letters refer to like items in the following figures. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0042] In the description of the present application, it should be noted that if terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are used to indicate the orientation or positional relationship, it is based on the orientation or positional relationship shown in the figures, or the orientation or positional relationship in which the product of this application is usually placed during use. This is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present application. In addition, in the description of the present application, if terms such as "first", "second", etc. are used only for distinguishing descriptions, they cannot be understood as indicating or implying relative importance.

[0043] In addition, in the description of the present application, if terms such as "horizontal" and "vertical" are used, it does not mean that the components are required to be absolutely horizontal or hanging vertically, but they can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and it does not mean that the structure must be completely horizontal, but it can be slightly inclined.

[0044] In the description of the present application, it should also be noted that unless otherwise clearly specified and limited, if terms such as "set", "installed", "connected", "linked" are used, they should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0045] Embodiment 1:

[0046] This embodiment discloses a LOHC fuel cell power generation device, which releases hydrogen from an organic liquid material for hydrogen storage under the action of a catalyst and supplies it to the fuel cell for power generation. It uses the heat released by the fuel cell reaction to continuously heat the reactor that releases hydrogen to maintain its internal temperature.

[0047] Among them, the device is designed with an integrated structure, and its interior is divided into two independent chambers by a partition, namely a fuel cell chamber and a hydrogen storage and release chamber.

[0048] Among them, a heat exchange structure is provided in the fuel cell compartment, and the heat exchange structure exchanges heat in contact with the liquid in the fuel cell compartment; a heat conduction structure is provided on the heat exchange structure, and the heat conduction structure penetrates out of the fuel cell compartment and is inserted into the hydrogen storage and release compartment, and its end forms an enlarged end in the hydrogen storage and release compartment, and exchanges heat in contact with the liquid in the hydrogen storage and release compartment through the enlarged end.

[0049] The fuel cell compartment is an independent module, and is provided with an electrode connected to an external circuit and a gas pipe and a water pipe communicated with an external pipeline; the power generation device presses and fixes a plurality of fuel cell compartments through a provided pressing bin shell 1, and presses a plurality of fuel cell compartments from both sides through pressing plates locked by screws provided on both sides.

[0050] The hydrogen storage and release compartment has various setting methods. One implementation method is that the hydrogen storage and release compartment is an independent container matching a single fuel cell compartment, and the power generation device has a plurality of hydrogen storage and release compartments, and all the hydrogen storage and release compartments exhaust and supply liquid through a unified pipeline.

[0051] Another implementation method is that the power generation device has a single hydrogen storage and release compartment, and the enlarged ends of the heat exchange structures in all the fuel cell compartments are inserted into the same hydrogen storage and release compartment.

[0052] Furthermore, the fuel cell compartment includes an outer cover 2 formed by two parts being hermetically buckled, and an electrode and a proton exchange membrane are provided in the outer cover 2; the heat exchange structure is arranged close to the electrode and matches the shape of the electrode.

[0053] If the electrode is set as a rod-shaped structure, the heat exchange structure is a hollow cylindrical structure nested outside the electrode.

[0054] In this embodiment, the electrode is a sheet structure, and the heat exchange structure is a heat sink plate 10 arranged on the inner wall of the outer cover 2, and the electrode is arranged close to the heat sink plate 10. A plurality of convex structures are provided on the heat sink plate 10, and the convex structures abut against one side surface of the electrode.

[0055] Furthermore, a sunk groove is provided on the inner wall of the outer cover 2, and a sealing plate 11 is provided on the opening of the sunk groove, and the sunk groove is covered by the sealing plate 11 to form a cavity in the sunk groove; the heat sink plate 10 is arranged in the cavity, and an opening is provided on the sealing plate 11 for the end surface of the heat sink plate 10 coated with an anti-corrosion coating to expose from the opening.

[0056] Furthermore, the heat conduction structure is a heat pipe 7, and the evaporation end of the heat pipe 7 is attached to the heat sink plate 10 in the cavity of the sunk groove; the hydrogen storage and release compartment includes a catalytic compartment 4, and the condensation end of the heat pipe 7 is arranged in the catalytic compartment 4, and the condensation end is a plurality of sub-tubes 8 connected to one end of the heat pipe 7, and the plurality of sub-tubes 8 are connected to a plurality of catalytic fins 9 arranged in the catalytic compartment 4 and exchange heat; the catalytic fins 9 include a heat conduction layer as the enlarged end and a catalytic layer attached to the surface of the heat conduction layer.

[0057] To further illustrate the structural characteristics of the device, the structure is optimized and defined in this embodiment. For example, Figures 1 - 4 as shown, the figure shows the overall structure of the device, while Figures 5 - 7 shows the form of the fuel cell stack and the heat exchange structure as independent modules.

[0058] Among them, the outer shell of the entire device is divided into two upper and lower regions, namely the upper pressing bin shell 1 and the shell of the lower catalytic chamber 4. The catalytic chamber 4 and the pressing bin shell 1 can be integrally formed, or a split structure can also be adopted. The catalytic chamber 4 is fixed to the bottom of the pressing bin shell 1 by bolts.

[0059] As can be seen from the figure, the pressing bin shell 1 is a through-type shell structure with openings at both ends, and at least two strip-shaped holes 3 are provided at its top. A chute is provided inside the pressing bin shell 1, and several groups of fuel cell stacks are slid into the pressing bin shell 1 in cooperation with the chute and are tightly fixed.

[0060] Some structures not shown in the figure, including the water injection port, gas guide port, and electrode connection end of each fuel cell stack, etc., can be connected to external pipelines through the above-mentioned strip-shaped holes 3. The specific principles are all the content of the prior art, so they will not be elaborated here.

[0061] At the same time, how to fixedly clamp several fuel cell stacks arranged in the pressing bin shell 1 is not shown in the figure either. In this embodiment, press plates suitable for its slide rails and opening sizes are provided on both sides of the pressing bin shell 1, and a screw rod is provided on the slide rail at its bottom. The end of the screw rod is rotatably connected to the press plate and is connected to the screw hole provided on the slide rail. By rotating the screw rod, the press plate can be pressed inward from both sides, so as to achieve the fixing effect. At the same time, the number of internal fuel cell stacks can be adjusted according to requirements, and a wide range of pressing and fixing can be achieved through the press plate and the screw rod.

[0062] The bottom catalytic chamber 4 is an integral structure with a large cavity. It also has openings on both sides, and the openings are sealed by a cover plate 5 provided with rubber strips, and it can also be removed during maintenance.

[0063] Furthermore, each fuel cell stack has two outer covers 2 that are buckled with each other. The outer cover 2 is a rectangular structure, and a certain extension space is formed by the outward protrusion of the side surface of the outer cover 2. And this extension space is a sunken groove structure inside the outer cover 2 for installing the corresponding heat exchange structure.

[0064] Such as Figures 5 - 7As shown in the figure, it can be seen that the sinking groove is closed by the sealing plate 11 to prevent the electrolyte in the fuel cell from entering the cavity of the sinking groove and affecting the heat conduction structure. At the same time, the sealing plate 11 has openings with a large area, which are two rectangular regions on the left and right in this embodiment. This region allows the end face of the internal heat sink 10 to protrude, and at the same time, a corrosion-resistant sealant is filled in the protruding gap for sealing, or it is processed by a corrosion-resistant welding process.

[0065] The heat sink 10 itself is made of copper material, and a corrosion-resistant material is plated on its surface, or a corrosion-resistant coating with a high thermal conductivity coefficient is directly sprayed, so as to improve its service life as much as possible while ensuring better heat conduction efficiency.

[0066] A number of protruding structures are provided on the protruding end face of the heat sink 10, which are structures for realizing rapid heat exchange in cooperation with the sheet electrodes. Since the reaction near the electrodes is the most intense and the overall temperature of the electrolyte will rise, this setting method of electrode fitting can achieve the best heat exchange efficiency.

[0067] The characteristic of the heat sink 10 is that it can quickly direct the heat on one side to the entire plate surface, so that its temperature rises rapidly as a whole. The evaporation end of the heat pipe 7 as the heat conduction structure is attached to the inner side of the heat sink 10. As shown in 7, the liquid inside the end of the heat pipe 7 at this position will evaporate to form steam and conduct to the other end. The heat pipe 7 passes through the lower part of the convex part of the outer cover 2. Since this part is isolated by the sealing plate 11 and does not have any liquid and gas, it can directly penetrate into the lower catalytic chamber 4.

[0068] There are two setting methods for several sub-pipes 8 at the lower part of the heat pipe 7, that is, as a sub-heat pipe 7 structure connected to the main heat pipe 7, the steam from the evaporation end at the upper end of the heat pipe 7 can be evenly distributed into several sub-pipes 8, and liquefy at the end of the sub-pipe 8 to form liquid and flow back upward along with the internal material. Or independent thin-diameter heat pipes 7 are connected to the liquefaction end of the heat pipe 7.

[0069] The catalytic part 6 provided in the catalytic chamber 4 is several catalytic fins 9 arranged at equal intervals. The catalytic fins 9 adopt a multi-layer structure design and have at least one heat conduction layer, which is a heat conduction metal material. The surface of the heat conduction metal material has concave and convex patterns, and a catalytic metal layer is plated on its surface by electroplating. Since the reaction of releasing hydrogen will be accelerated by the influence of the catalyst, the reaction speed is generally faster near the catalyst. The catalytic part 6 can quickly introduce heat to the sub-pipe 8 in a way close to the heat source, so as to achieve the best heat transfer efficiency.

[0070] The present invention is not limited to the above optional embodiments, and anyone can obtain other various forms of products under the inspiration of the present invention. The above specific embodiments should not be construed as limiting the protection scope of the present invention, and the protection scope of the present invention should be defined by the claims, and the specification can be used to interpret the claims.

Claims

1. A LOHC fuel cell power generation device that releases hydrogen from an organic liquid material for hydrogen storage under the action of a catalyst and supplies it to a fuel cell for power generation, characterized in that: It includes an independent fuel cell compartment and a hydrogen storage and release compartment. A heat exchange structure is provided in the fuel cell compartment, and the heat exchange structure exchanges heat by contacting the liquid in the fuel cell compartment. A heat conduction structure is provided on the heat exchange structure. The heat conduction structure penetrates out of the fuel cell compartment and is inserted into the hydrogen storage and release compartment, and its end forms an enlarged end in the hydrogen storage and release compartment, and exchanges heat by contacting the liquid in the hydrogen storage and release compartment through the enlarged end. The fuel cell compartment is an independent module, and is provided with an electrode connected to an external circuit and a gas pipe and a water pipe communicated with an external pipeline. The power generation device presses and fixes a plurality of fuel cell compartments through a provided pressure feed bin shell (1), and presses a plurality of fuel cell compartments from both sides through pressing plates locked by screws provided on both sides. The power generation device has a single hydrogen storage and release compartment, and the enlarged ends of the heat exchange structures in all fuel cell compartments are inserted into the same hydrogen storage and release compartment. The fuel cell compartment includes an outer cover (2) formed by sealing and buckling two parts. Electrodes and a proton exchange membrane are provided in the outer cover (2). The heat exchange structure is arranged close to the electrode and matches the shape of the electrode. The electrode is a sheet structure, and the heat exchange structure is a heat sink plate (10) arranged on the inner wall of the outer cover (2). The electrode is arranged close to the heat sink plate (10). A plurality of convex structures are provided on the heat sink plate (10), and the convex structures abut against one side surface of the electrode. A sunken groove is provided on the inner wall of the outer cover (2), and a sealing plate (11) is provided on the opening of the sunken groove. The sunken groove is covered by the sealing plate (11) to form a cavity in the sunken groove. The heat sink plate (10) is arranged in the cavity, and an opening is provided on the sealing plate (11) for the end surface of the heat sink plate (10) coated with an anti-corrosion coating to expose from the opening.

2. The LOHC fuel cell power generation device according to claim 1, characterized in that: The heat conduction structure is a heat pipe (7), and the evaporation end of the heat pipe (7) fits with the heat sink plate in the cavity of the sunken groove. The hydrogen storage and release compartment includes a catalytic compartment (4). The condensation end of the heat pipe (7) is arranged in the catalytic compartment (4). The condensation end is a plurality of sub-tubes (8) connected to one end of the heat pipe (7). The plurality of sub-tubes (8) are connected to a plurality of catalytic fins (9) arranged in the catalytic compartment (4) to exchange heat. The catalytic fin (9) includes a heat conduction layer as the enlarged end and a catalytic layer attached to the surface of the heat conduction layer.

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