Solid state hydrogen storage container and method for hydrogen charging using fluid cooling and hydrogen discharging using fluid heating

Abstract

The application provides a solid-state hydrogen storage container and a method for hydrogen charging and discharging by using fluid cooling and heating based on the container. The inside of the container is divided into multiple cavities by longitudinally arranged first partitions and transversely arranged second partitions. The first cavity and the second cavity are arranged above and below, and the third cavity is used for filling solid-state hydrogen storage material. A heat exchange structure composed of multiple U-shaped heat exchange pipes is arranged in the third cavity. Two ports of the heat exchange pipes are respectively connected to the first cavity and the second cavity, and further connected to the heat exchange medium inlet and outlet. During hydrogen charging, the cooling medium flows from the first cavity to the second cavity. During hydrogen discharging, the heating medium flows from the second cavity to the first cavity. In this way, intense heat exchange is formed inside the solid-state hydrogen storage material, and the temperature field inside the container becomes more uniform. The efficiency of hydrogen charging and discharging can be improved by using the solid-state hydrogen storage container provided by the application.

Description

TECHNICAL FIELD

[0001] The present application relates to a solid-state hydrogen storage container and a method for hydrogen charging and discharging the container using fluid cooling and heating, and belongs to the technical field of solid-state hydrogen storage. BACKGROUND

[0002] Solid-state hydrogen storage is a cutting-edge hydrogen storage method that uses solid-state hydrogen storage materials (such as magnesium or magnesium alloys) to store hydrogen. This technology has many advantages, including large hydrogen storage capacity, abundant raw material sources, relatively low cost, and environmental friendliness.

[0003] The reaction of hydrogen with solid-state hydrogen storage materials is a reversible reaction that enables cyclic hydrogen charging and discharging, reducing the cost of use. During hydrogen charging, hydrogen reacts with solid-state hydrogen storage materials to form metal hydride, which is an exothermic reaction that must be cooled in time to allow hydrogen charging to continue. During hydrogen discharge, the solid-state hydrogen storage material is heated to decompose and release hydrogen, which is an endothermic reaction that must be continuously heated to allow hydrogen discharge to continue.

[0004] Existing hydrogen charging and discharging thermal management systems use heat transfer media (such as heat-conducting oil, hot air, etc.) to transfer heat, thereby cooling or heating the hydrogen storage material. Typically, the heat transfer medium enters from one end of the solid-state hydrogen storage container and exits from the other end, with the hydrogen inlet and outlet being located at one end of the container. This does not fully consider the diffusion model of hydrogen in the solid-state hydrogen storage material, resulting in uneven reactions throughout the container.

[0005] There is a lot of waste heat in the industry in the form of fluid, and using fluid as the heat source for solid-state hydrogen storage containers can utilize waste heat, thereby achieving energy saving and reducing carbon emissions. SUMMARY

[0006] The technical problem to be solved by the present application is that existing solid-state hydrogen storage containers have uneven reactions inside the container during hydrogen charging or discharging, and the overall work efficiency needs to be improved.

[0007] To solve the above technical problems, the first aspect of the present application provides a solid-state hydrogen storage container, comprising:

[0008] a container shell;

[0009] a first partition plate installed inside the container shell and close to the first end of the container shell, the first partition plate extending along the radial direction of the container shell, and the edge of the first partition plate being sealingly connected to the inner wall of the container shell;

[0010] a second partition plate, edges of the second partition plate are connected to the first surface of the first partition plate and the inner wall of the first end of the container shell respectively, thereby forming adjacent first, second and third cavities in the container shell; the third cavity is not communicated with the first and second cavities;

[0011] a plurality of heat exchange pipes, a main body of each of the heat exchange pipes is located in the third cavity, a first opening of each of the heat exchange pipes is communicated with the first cavity after passing through the first partition plate, and a second opening of each of the heat exchange pipes is communicated with the second cavity after passing through the first partition plate;

[0012] a first heat exchange medium inlet and outlet, which is arranged on the outer wall of the first end of the container shell and communicated with the first cavity;

[0013] a second heat exchange medium inlet and outlet, which is arranged on the outer wall of the first end of the container shell and communicated with the second cavity;

[0014] a hydrogen gas inlet and outlet, which is arranged on the outer wall of the second end of the container shell and communicated with the third cavity.

[0015] In some embodiments, a third partition plate is further included;

[0016] the third partition plate is installed inside the container shell and close to the second end of the container shell, the third partition plate extends along the radial direction of the container shell, and an edge of the third partition plate is connected to the inner wall of the container shell;

[0017] the third partition plate forms a fourth cavity in the container shell, the fourth cavity is directly communicated with the hydrogen gas inlet and outlet, and the hydrogen gas can flow between the third cavity and the fourth cavity through the third partition plate;

[0018] the third cavity is used to fill the solid-state hydrogen storage material, and the heat exchange pipes are all embedded in the solid-state hydrogen storage material.

[0019] In some embodiments, the third partition plate is a filter screen, which is used to prevent the solid-state hydrogen storage material from leaking into the fourth cavity.

[0020] In some embodiments, the heat exchange pipes are U-shaped pipes.

[0021] In some embodiments, the container shell is a horizontally placed cylindrical container, both the first end and the second end of the container shell are spherical, the first partition plate and the third partition plate are vertically arranged, and the second partition plate is horizontally arranged; the first cavity and the second cavity are arranged in an up-down manner and have the same size.

[0022] In some embodiments, the hydrogen gas inlet and outlet is arranged on the upper half of the second end of the container shell.

[0023] In some embodiments, a plurality of enhanced gas permeation channels are arranged in the solid-state hydrogen storage material, the enhanced gas permeation channels are arranged along the axial direction of the container shell, and the entrances of the enhanced gas permeation channels are communicated with the fourth cavity and used for the hydrogen gas to pass through quickly.

[0024] In some embodiments, a stress release device is provided in the third cavity, and the stress release device comprises a thin-walled hollow tube.

[0025] In a second aspect of the present application, a hydrogen charging method for the solid-state hydrogen storage container is provided, and the method comprises the following steps:

[0026] The cooling medium enters the first cavity from the first heat exchange medium inlet and outlet, then passes through the heat exchange tube to reach the second cavity, and finally flows out through the second heat exchange medium inlet and outlet.

[0027] The hydrogen gas flows into the fourth cavity from the hydrogen gas inlet and outlet, and after passing through the third partition, it reaches the third cavity to react with the solid-state hydrogen storage material and is solidified.

[0028] In a third aspect of the present application, a hydrogen releasing method for the solid-state hydrogen storage container is provided, and the method comprises the following steps:

[0029] The heating medium enters the second cavity from the second heat exchange medium inlet and outlet, then passes through the heat exchange tube to reach the first cavity, and finally flows out through the first heat exchange medium inlet and outlet.

[0030] The solid-state hydrogen storage material starts to release hydrogen gas when its temperature reaches the hydrogen releasing temperature.

[0031] The solid-state hydrogen storage container is divided by multiple partitions into multiple cavities with different functions, and the solid-state hydrogen storage container has a specially designed heat exchange structure. Based on the heat exchange structure, the preset hydrogen charging or hydrogen releasing operation steps can improve the system efficiency during hydrogen charging or hydrogen releasing. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 FIG. 1 is a schematic diagram of the internal structure of a solid-state hydrogen storage container according to a preferred embodiment of the present application.

[0033] Figure 2 FIG. 2 is a schematic diagram of the cross-sectional structure of the solid-state hydrogen storage container A from a perspective view according to the preferred embodiment of the present application. Figure 1

[0034] The meanings of the reference signs in the above figures are as follows:

[0035] 111 first partition

[0036] 112 second partition

[0037] 113 third partition

[0038] 121 first cavity

[0039] 122 second cavity

[0040] 123 third cavity ​

[0041] 124 fourth cavity

[0042] 131 heat exchange tube

[0043] 131a heat exchange tube opening

[0044] 131b heat exchange tube opening

[0045] 132 heat exchange tube

[0046] 133 heat exchange tube

[0047] 141 enhanced gas permeable channel

[0048] 141a enhanced gas permeable channel inlet

[0049] 141b enhanced gas permeable channel bottom

[0050] 142 enhanced gas permeable channel

[0051] 151 thermal insulation layer

[0052] 161 heat exchange medium inlet and outlet

[0053] 162 heat exchange medium inlet and outlet

[0054] 171 hydrogen gas inlet and outlet

[0055] 181 stress relief device

[0056] 182 stress relief device

[0057] 200 solid-state hydrogen storage material DETAILED DESCRIPTION

[0058] The terms "first", "second", and similar terms used in the specification and claims are not intended to denote any order, quantity, or importance, but are used to distinguish one element from another. The terms "one" and "a" are not intended to denote the number of objects, but rather are intended to denote at least one. In the description of the present patent, the term "plurality" means two or more, unless otherwise indicated.

[0059] In the description of the present patent, the terms "comprising" or "having" and similar terms mean that the elements or objects appearing before the "comprising" or "having" cover the elements or objects listed after the "comprising" or "having" and their equivalent elements, and do not exclude other elements or objects.

[0060] In the description of the present patent, when an element is referred to as being "fixed to" or "attached to" another element, it can be directly on the other element or there can be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there can be an intervening element. In contrast, when an element is referred to as being "directly on" another element, there is no intervening element.

[0061] In the description of the present patent, the terms "front", "back", "up", "down", "left", "right", "horizontal", "transverse", "vertical", "top", "bottom", "inner", "outer", "clockwise", "axial", "radial", "circumferential", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present patent and simplifying the description, and does not 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 patent.

[0062] The solid-state hydrogen storage container provided by the present application has a specially designed heat exchange structure. The heat exchange structure of the solid-state hydrogen storage container uses a fluid heat exchange medium as a heat source for the solid-state hydrogen storage container to provide the required heat for hydrogen release of the solid-state hydrogen storage container. At the same time, the fluid heat exchange medium can also be used as a cooling medium to carry away the reaction heat released by the solid-state hydrogen storage material during the hydrogen charging process, thereby improving the hydrogen release performance.

[0063] The fluid heat exchange medium described above can be air, inert gas, water vapor, and other suitable heat-conducting gases, or water, heat-conducting oil, molten salt, liquid metal, and other suitable heat-conducting fluids. In particular, the heat exchange medium used for heating during hydrogen release can use industrial waste heat (waste water, waste gas, etc.), thereby reducing the use cost.

[0064] Figure 1 The figure shows the internal structure of the solid-state hydrogen storage container provided by a preferred embodiment of the present application. The outer part of the solid-state hydrogen storage container includes a container shell, which is in the shape of a horizontally placed cylinder with spherical ends. The container shell is made of metal, such as stainless steel. Such a container can withstand a relatively large pressure. In order to prevent the solid-state hydrogen storage container from rolling, two flat foot pads are provided at the bottom of the container. A thermal insulation layer 151 is completely wrapped around the outside of the container shell to maintain the internal temperature of the solid-state hydrogen storage container. In other embodiments, pressure and temperature measuring instrument interfaces can be added to the solid-state hydrogen storage container, as well as safety valve interfaces and gas detection instruments to detect whether there is an internal leakage problem in the container.

[0065] The first end of the container shell is provided with a first end cover 101, and the second end of the container shell is provided with a second end cover 102. Figure 1A first partition 111 is installed inside the container (shown at the left end), which can be made of a high-temperature resistant metal sheet, such as a stainless steel plate. The first partition 111 extends radially along the container shell, and its edge is fixed and sealed to the inner wall of the container shell. The fixing method can be welding or other connection methods. In this way, a small space is separated at the first end of the container shell. Figure 1 In the embodiment, the first partition 111 is vertically arranged.

[0066] The second partition 112 is used to divide the small space into two, forming a first cavity 121 and a second cavity 122. The first cavity 121 and the second cavity 122 are not directly connected. The surface shape of the second partition 112 is arched, with one side being an arc and the other side being a straight line. The arc-shaped edge of the second partition 112 is fixed to the arc-shaped inner wall surface of the container shell, and the fixing method can be welding or other connection methods. The straight edge of the second partition 112 is tightly attached to the surface of the first partition 111. Figure 1 In the embodiment, the second partition 112 is horizontally arranged and centered, so that the first cavity 121 and the second cavity 122 are arranged up and down and have the same volume. In other embodiments, the second partition can also be vertically arranged, so that the first cavity 121 and the second cavity 122 are arranged left and right.

[0067] A heat exchange medium inlet and outlet 161 is provided on the upper half of the first end of the container shell. Figure 1 As shown. The heat exchange medium inlet and outlet 161 is fixed on the outer wall of the container shell and is connected to the first cavity 121, and the fixing method can be welding or other connection methods. Preferably, the heat exchange medium inlet and outlet 161 is arranged horizontally. A heat exchange medium inlet and outlet 162 is arranged in the lower half of the first end of the container shell. The heat exchange medium inlet and outlet 162 is fixed on the outer wall of the container shell and is connected to the second cavity 122, and the fixing method can be welding or other connection methods. Preferably, the heat exchange medium inlet and outlet 162 is arranged horizontally. In other embodiments, the heat exchange medium inlet and outlet 161 and the heat exchange medium inlet and outlet 162 are each connected to the container shell by a flange connection, or by other connection methods such as a compression fitting.

[0068] At the second end of the container shell ( Figure 1The third partition 113 is installed inside the right end of the container shell as shown in FIG. 6, and extends along the radial direction of the container shell, with its edges fixed to the inner wall of the container shell by welding or other fixing means. The third partition 113 divides the container shell into a third cavity 123 and a fourth cavity 124. The third cavity 123 is the main cavity of the solid-state hydrogen storage container, and is used to fill the solid-state hydrogen storage material 200. Preferably, the third partition 113 can be a fine-mesh metal filter, which has good gas permeability and can prevent the solid-state hydrogen storage material 200 in the third cavity 123 from leaking into the fourth cavity 124. The hydrogen inlet and outlet 171 is fixed to the upper half of the second end of the container shell, as shown in FIG. 6. Figure 1 The fourth cavity 124 is hollow inside and communicates with the hydrogen inlet and outlet 171. In other embodiments, the hydrogen inlet and outlet 171 can be connected to the container shell by flange connection, or other connection means such as a snap joint.

[0069] The third cavity 123, the fourth cavity 124, and the hydrogen inlet and outlet 171 communicate with each other to form a hydrogen flow channel. During hydrogen charging, hydrogen enters the fourth cavity 124 from the hydrogen inlet and outlet 171, disperses, and enters the third cavity 123 through the filter mesh of the third partition 113, where it contacts the solid-state hydrogen storage material 200. During hydrogen discharge, hydrogen is released from the solid-state hydrogen storage material 200, passes through the filter mesh of the third partition 113 to the fourth cavity 124, and finally converges to the hydrogen inlet and outlet 171 for discharge. Figure 1 In the embodiment shown in FIG. 6, the height of the hydrogen inlet and outlet 171 is close to that of the heat exchange medium inlet and outlet 161, which is beneficial to accelerating the reaction speed of hydrogen charging and discharging.

[0070] The solid-state hydrogen storage material 200 is provided with enhanced gas permeable channels 141 for enhancing the flow speed and permeability of hydrogen during hydrogen charging and discharging. The enhanced gas permeable channels 141 can be gas permeable pipes, such as pipes made of metal mesh. The enhanced gas permeable channels 141 can also be channels formed by the solid-state hydrogen storage material itself. All the enhanced gas permeable channels 141 are parallel to the axis of the solid-state hydrogen storage container, and are uniformly arranged in the cross section of the solid-state hydrogen storage container, as shown in FIG. 6. Figure 2 The enhanced gas permeable channel entrance 141a is close to the third partition 113, and the enhanced gas permeable channel bottom 141b is closed. After passing through the third partition 113, part of the hydrogen directly contacts the solid-state hydrogen storage material and diffuses inward along the axial direction of the container.

[0071] Another portion of hydrogen gas enters the reinforced gas permeation channel 141 through the reinforced gas permeation channel inlet 141a and flows rapidly therein. These hydrogen gases diffuse radially along the container and into the interior of the solid-state hydrogen storage material. Due to the combined effect of the third partition 123 filter and the reinforced gas permeation channel 141, the probability of the solid-state hydrogen storage material in the third cavity 123 being contacted by hydrogen gas is more uniform, and the hydrogen gas diffuses more rapidly in the solid-state hydrogen storage material 200.

[0072] Generally, the solid-state hydrogen storage material is made into powder form, which has a large specific surface area and can accelerate the reaction speed with hydrogen gas. The powder form of the solid-state hydrogen storage material is tightly packed inside the third cavity 123, and once heated and expanded, it generates a large internal stress, which is harmful to the solid-state hydrogen storage container. Therefore, a stress relief device should be provided in the container to prevent the expansion stress of the solid-state hydrogen storage material from damaging the solid-state hydrogen storage container shell.

[0073] Preferably, the stress relief device 181 and the stress relief device 182 are hollow thin-walled metal tubes that can be compressed and deformed under pressure, such as Figure 2 When the solid-state hydrogen storage material is heated and expanded, the above-mentioned thin-walled metal tubes are compressed and deformed under pressure, the stress of the solid-state hydrogen storage material is thus released, and the pressure on the wall of the solid-state hydrogen storage container is greatly reduced, thus protecting the container.

[0074] The heat exchange structure in the solid-state hydrogen storage container is the focus of this patent. A plurality of heat exchange tubes are provided in the third cavity 123, which are made of high-temperature resistant metal materials, such as stainless steel. These heat exchange tubes are embedded in the solid-state hydrogen storage material 200, and the tubes are used for the flow of heat exchange medium. The solid-state hydrogen storage material can easily exchange heat with the heat exchange medium through the tube wall. According to the needs, the heat exchange medium uses cooling fluid or hot fluid.

[0075] Each heat exchange tube is provided with two ports, each of which can serve as both a heat exchange medium inlet and a heat exchange medium outlet. Each heat exchange tube is made into a U shape, and some of the ports are connected to the first cavity 121 through the openings in the first partition 111, as shown by the heat exchange tube port 131a in Figure 1 Some other ports are connected to the second cavity 122 through the openings in the first partition 111, as shown by the heat exchange tube port 131b in Figure 1 All the ports are sealed at the connection with the openings in the first partition 111.

[0076] The heat exchange medium inlet and outlet 161, the first cavity 121, the multiple parallel U-shaped heat exchange tubes (heat exchange tubes 131, 132, 133, etc.), the second cavity 122, and the heat exchange medium inlet and outlet 162 are interconnected, forming a heat exchange medium circulation loop within the solid-state hydrogen storage and release container. In this way, the heat exchange medium can flow from the first cavity 121 through the U-shaped heat exchange tubes to the second cavity 122, and vice versa, from the second cavity 122 through the U-shaped heat exchange tubes to the first cavity 121.

[0077] The shape and arrangement of the heat exchange tubes have also been optimized. Figure 1 and Figure 2 The heat exchange tubes 131, 132, and 133 shown in the figure are used as examples. The U-shaped span of heat exchange tube 131 is the largest, followed by heat exchange tube 132, and the smallest is heat exchange tube 133. In the entire solid-state hydrogen storage container, there are four heat exchange tubes with the same shape as heat exchange tube 131, five heat exchange tubes with the same shape as heat exchange tube 132, and six heat exchange tubes with the same shape as heat exchange tube 133. Figure 2 The plane where the four heat exchange tubes 133 are located coincides with the plane where the four heat exchange tubes 131 are located. They are all based on the central horizontal plane ( Figure 2 The five heat exchange tubes 132 are also symmetrical about the aforementioned central horizontal plane. Three of the heat exchange tubes 132 are located in planes parallel to the planes of the two adjacent heat exchange tubes 131 and sandwiched between the two planes. The other two heat exchange tubes 132 are located between two adjacent heat exchange tubes 133. This arrangement ensures that all ports serving the same function are evenly distributed on the first separator 111, facilitating uniform heat exchange between the heat exchange medium and the solid-state hydrogen storage and release material.

[0078] It should be pointed out that Figure 2 The number of heat exchange tubes shown is for reference only. The number of heat exchange tubes can be adjusted based on the container diameter: larger diameter containers require more heat exchange tubes, while smaller diameter containers require fewer heat exchange tubes.

[0079] The above describes in detail the structure and function of the solid-state hydrogen storage and discharge container. Next, based on the solid-state hydrogen storage and discharge container, the method of using fluid cooling to charge hydrogen and heating to discharge hydrogen is described in detail.

[0080] (1) When charging hydrogen

[0081] Step 1.1: The cooling medium flows into the solid-state hydrogen storage and release container from the heat exchange medium inlet and outlet 161, passes through the first cavity 121, multiple heat exchange tubes (heat exchange tubes 131, heat exchange tubes 132, heat exchange tubes 133, etc.), and the second cavity 122, and finally flows out from the heat exchange medium inlet and outlet 162, thereby removing the reaction heat released when the solid-state hydrogen storage and release material reacts with hydrogen.

[0082] Step 1.2: Hydrogen gas flows into the solid-state hydrogen storage container from the hydrogen gas inlet and outlet 171, and then flows into the third cavity 123 from the fourth cavity 124. The third cavity 123 is filled with the solid-state hydrogen storage material 200, which has good gas permeability and is designed with multiple reinforced gas permeable channels (reinforced gas permeable channel 141, reinforced gas permeable channel 142, etc.) in the solid-state hydrogen storage container. The hydrogen gas entering the third cavity 123 passes through the gap between the reinforced gas permeable channels and the solid-state hydrogen storage material 200, and then reacts with the solid-state hydrogen storage material distributed throughout the solid-state hydrogen storage container to store hydrogen in solid form in the solid-state hydrogen storage container.

[0083] Because the cooling medium flows into the upper half of the solid-state hydrogen storage container and flows out from the lower half, the reaction heat released by the solid-state hydrogen storage material in the upper half is more easily carried away. The temperature difference between the upper and lower halves of the solid-state hydrogen storage material enhances the flow of hydrogen gas in the solid-state hydrogen storage container, enhancing the cooling effect of the solid-state hydrogen storage material 200 distributed throughout the third cavity 123, thereby allowing the solid-state hydrogen storage material to absorb hydrogen more fully.

[0084] Because the solid-state hydrogen storage material in the upper half is preferentially cooled, its reaction rate is faster than that of the solid-state hydrogen storage material in the lower half. The hydrogen gas inlet and outlet 171 is located in the upper half of the solid-state hydrogen storage container, and the hydrogen gas reaches the upper half of the solid-state hydrogen storage material quickly, quickly replenishing the hydrogen gas that has been reduced due to reaction, allowing the solid-state hydrogen storage material to fully react with the hydrogen gas.

[0085] (II) Hydrogen release

[0086] Step 2.1: The heating medium flows into the hydrogen storage container from the heat exchange medium inlet and outlet 162, passes through the second cavity 122, multiple heat exchange tubes (heat exchange tube 131, heat exchange tube 132, heat exchange tube 133, etc.), the first cavity 121, and finally flows out from the heat exchange medium inlet and outlet 161, thereby providing the solid-state hydrogen storage material 200 with the heat required for hydrogen release.

[0087] Step 2.2: The solid-state hydrogen storage material 200 distributed throughout the solid-state hydrogen storage container releases hydrogen gas after being heated. This hydrogen gas flows from the third cavity 123 to the fourth cavity 124 through the gap between the solid-state hydrogen storage material 200 or the reinforced gas permeable channels, and finally all flows into the hydrogen gas inlet and outlet 171 and flows out.

[0088] Because the heating medium flows into the lower half of the solid-state hydrogen storage container and flows out from the upper half, the solid-state hydrogen storage material in the lower half is heated to the hydrogen release temperature first and releases hydrogen, and the hydrogen just released is also hot. Because the hydrogen inlet and outlet 171 are arranged in the upper half of the solid-state hydrogen storage container, the hot hydrogen released from the lower half flows upward and heats the solid-state hydrogen storage material in the upper half of the container. At this time, the hydrogen is cooled moderately and the solid-state hydrogen storage material is heated sufficiently, achieving two goals at once. The rapid flow of hydrogen causes intense heat exchange within the solid-state hydrogen storage material, making the temperature field in the solid-state hydrogen storage container more uniform and thus making the hydrogen release of the solid-state hydrogen storage material more complete.

[0089] The preferred embodiments of the present application are described in detail above. It should be understood that those of ordinary skill in the art can make modifications and variations without departing from the concept of the present application. Therefore, any technical solution that can be obtained by logical analysis, reasoning or limited experiments based on the prior art according to the concept of the present application should be within the scope of protection defined by the claims.

Claims

1. A solid state hydrogen storage container, characterized by, The application relates to a hydrogen storage container, which comprises the following components: a container shell; a first partition plate installed inside the container shell and close to the first end of the container shell, the first partition plate extending along the radial direction of the container shell, and the edge of the first partition plate being in sealing connection with the inner wall of the container shell; a second partition plate, the edge of the second partition plate being connected to the first surface of the first partition plate and the inner wall of the first end of the container shell respectively, so that a first cavity, a second cavity and a third cavity are formed in the container shell in sequence, and the third cavity is not in communication with the first cavity and the second cavity; a plurality of heat exchange pipes, the main body of each heat exchange pipe being located in the third cavity, the first opening of each heat exchange pipe being in communication with the first cavity after penetrating through the first partition plate, and the second opening of each heat exchange pipe being in communication with the second cavity after penetrating through the first partition plate; a first heat exchange medium inlet and outlet arranged on the outer wall of the first end of the container shell and in communication with the first cavity; a second heat exchange medium inlet and outlet arranged on the outer wall of the first end of the container shell and in communication with the second cavity; a hydrogen gas inlet and outlet arranged on the outer wall of the second end of the container shell and in communication with the third cavity; a third partition plate; the third partition plate being installed inside the container shell and close to the second end of the container shell, the third partition plate extending along the radial direction of the container shell, and the edge of the third partition plate being connected to the inner wall of the container shell; the third partition plate forming a fourth cavity in the container shell, the fourth cavity being in direct communication with the hydrogen gas inlet and outlet, and hydrogen gas being able to flow between the third cavity and the fourth cavity through the third partition plate; the third cavity being used for filling solid hydrogen storage material, and the heat exchange pipes being all embedded in the solid hydrogen storage material; the container shell adopting a horizontally arranged cylindrical container, the first end and the second end of the container shell both being spherical; the first partition plate and the third partition plate being vertically arranged, and the second partition plate being horizontally arranged; the first cavity and the second cavity being vertically arranged and having the same size; the hydrogen gas inlet and outlet being arranged on the upper half of the second end of the container shell.

2. A solid state hydrogen storage container according to claim 1, wherein, the third partition plate adopting a filter screen, which is used for preventing the solid hydrogen storage material from leaking into the fourth cavity.

3. The solid-state hydrogen storage container of claim 1, wherein, the heat exchange pipes adopting U-shaped pipes.

4. The solid-state hydrogen storage container of claim 1, wherein, a plurality of reinforced air permeable channels are arranged in the solid hydrogen storage material, the reinforced air permeable channels being arranged along the axial direction of the container shell; the inlet of each reinforced air permeable channel being in communication with the fourth cavity, and the reinforced air permeable channels being used for allowing hydrogen gas to pass through quickly.

5. The solid-state hydrogen storage container of claim 1, wherein a stress release device is arranged in the third cavity, and the stress release device comprises a thin-walled hollow pipe.

6. The method of claim 1, wherein the hydrogen is introduced into the hydrogen storage material at a temperature of about 300°C to about 400°C. the following steps are included: cooling medium enters the first cavity from the first heat exchange medium inlet and outlet, then passes through the heat exchange pipes to reach the second cavity, and finally flows out through the second heat exchange medium inlet and outlet; hydrogen gas flows into the fourth cavity from the hydrogen gas inlet and outlet, then reacts with the solid hydrogen storage material in the third cavity after penetrating through the third partition plate, and is solidified.

7. The method of claim 1, wherein the hydrogen release is carried out at a temperature of 100°C or lower. the following steps are included: The heating medium enters the second cavity from the second heat exchange medium inlet and outlet, then passes through the heat exchange pipe to reach the first cavity, and finally flows out through the first heat exchange medium inlet and outlet; The temperature of the solid-state hydrogen storage material reaches the hydrogen release temperature to start releasing hydrogen.

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