Solid hydrogen storage device based on partition management

Abstract

The invention relates to the technical field of solid hydrogen storage, and discloses a solid hydrogen storage device based on partition management. The solid hydrogen storage device is provided with a plurality of mutually independent hydrogen storage areas, a stepping rotating motor and a closing device with an opening, and the closing device is driven by the stepping rotating motor to rotate so as to realize opening or closing of the opening of a single hydrogen storage area, so that switching of a hydrogen charging area and a hydrogen discharging area is realized; in other words, the hydrogen charging and discharging process can be controlled through zoning rotation, hydrogen charging and discharging are only conducted on a single hydrogen storage area every time, other hydrogen storage areas are in a stable state, then accurate area temperature control is achieved, the situation that the temperature of the hydrogen storage areas in the hydrogen charging and discharging state is too high can be effectively avoided, and the efficiency and safety of the device in the hydrogen charging and discharging process are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of solid-state hydrogen storage, and in particular to a solid-state hydrogen storage device based on zoning management. Background Art

[0002] Solid-state hydrogen storage devices need to handle a lot of heat during the hydrogen charging and dehydration process. Since the hydrogen storage material produces an exothermic reaction during hydrogen charging and an endothermic reaction during hydrogen dehydration, heat control is critical to ensure the performance of the hydrogen storage device. However, traditional solid-state hydrogen storage devices have at least the following shortcomings:

[0003] (1) Uneven thermal management: Traditional hydrogen storage devices usually have difficulty in achieving independent temperature control of each area, resulting in uneven heat distribution and affecting the charging and discharging efficiency of hydrogen storage materials;

[0004] (2) Overheating and heat loss problems: Traditional hydrogen storage devices lack effective zoning management and are prone to overheating problems. Overheating can lead to degradation of hydrogen storage material performance and even affect the stability and safety of hydrogen release.

[0005] (3) Low cooling / heating water resource circulation efficiency: Traditional hydrogen storage devices have design defects in the circulation management of cooling or heating water, which increases cooling water loss and maintenance costs. Summary of the invention

[0006] In view of this, the present invention provides a solid-state hydrogen storage device based on zoning management to solve the problems of uneven thermal management, overheating and heat loss in the solid-state hydrogen storage device in the related art.

[0007] In a first aspect, the present invention provides a solid-state hydrogen storage device based on zoning management, the solid-state hydrogen storage device comprising a shell and a hydrogen storage container arranged inside the shell; wherein,

[0008] There is a cooling medium cavity between the shell and the hydrogen storage container, and M cooling medium release devices are arranged on the inner wall of the cooling medium cavity;

[0009] The interior of the hydrogen storage container is longitudinally divided into N mutually independent hydrogen storage areas, and solid hydrogen storage materials are arranged in the hydrogen storage areas; at least one cooling medium release device is correspondingly arranged in each hydrogen storage area, M and N are integers greater than or equal to 2, and M is not less than N;

[0010] The hydrogen storage container is also provided with a hydrogen charging and discharging port, a stepping rotary motor and a closing device; the closing device has a one-N opening and is rotatably arranged at the opening of each hydrogen storage area for closing the opening of each hydrogen storage area; the stepping rotary motor is used to drive the closing device to rotate, so that each time the closing device rotates once, the one-N opening can be aligned with an opening of the hydrogen storage area; the hydrogen charging and discharging port is connected to the one-N opening of the closing device.

[0011] In an optional embodiment, the solid-state hydrogen storage device further includes a cooling medium storage container;

[0012] The cooling medium storage container is arranged above the shell;

[0013] The cooling medium storage container is in communication with each of the cooling medium releasing devices, and is used to provide cooling medium to the cooling medium releasing devices.

[0014] In an optional embodiment, a heating device is provided in the cooling medium storage container.

[0015] In an optional embodiment, the cooling medium releasing device is a spray head for spraying cooling medium onto the outer wall surface of the corresponding hydrogen storage area.

[0016] In an optional embodiment, the solid-state hydrogen storage device further includes a cooling medium collection device;

[0017] The cooling medium collecting device is arranged below the hydrogen storage container, and includes a cooling medium collecting container, a liquid level sensor and a power device; the liquid level sensor is used to detect the liquid level of the cooling medium in the cooling medium collecting container, and the power device is used to transport the cooling medium in the cooling medium collecting container to the cooling medium storage container.

[0018] In an optional embodiment, a plurality of temperature sensors are provided on the outer wall of the hydrogen storage container, and the temperature sensors are used to detect the surface temperature of the hydrogen storage container; wherein,

[0019] At least one temperature sensor is correspondingly arranged in each hydrogen storage area.

[0020] In an optional embodiment, the solid-state hydrogen storage device also includes a controller, which is electrically connected to the cooling medium release device, the stepping rotary motor, the heating device, the liquid level sensor, the power device and the temperature sensor respectively.

[0021] In an optional embodiment, the controller is capable of acquiring the surface temperature of the hydrogen storage container detected by the temperature sensor, and when the surface temperature of the hydrogen storage container is higher or lower than a preset temperature, controlling the heating device, the cooling medium release device, and the stepping rotary motor to turn on or off;

[0022] And / or, the controller is capable of obtaining the liquid level of the cooling medium in the cooling medium collecting container detected by the liquid level sensor, and when the liquid level is higher than a preset liquid level, controlling the power device to start up so as to transport the cooling medium in the cooling medium collecting container to the cooling medium storage container.

[0023] In an optional embodiment, when the solid-state hydrogen storage device is in a hydrogen charging state, the controller controls the heating device to be turned off, and controls the stepping rotary motor to start so that the one-N opening of the closing device is aligned with the opening of one of the hydrogen storage areas for hydrogen charging; when the surface temperature of the hydrogen storage area in the hydrogen charging state is higher than the first preset temperature, the cooling medium releasing device is controlled to release the cooling medium; when the surface temperature of the hydrogen storage area in the hydrogen charging state is higher than the second preset temperature, the stepping rotary motor is controlled to start again so that the one-N opening of the closing device is aligned with the opening of the next hydrogen storage area for hydrogen charging;

[0024] And / or, when the solid-state hydrogen storage device is in a hydrogen release state, the controller controls the heating device to turn on, heats the cooling medium in the cooling medium storage container to a third preset temperature, and controls the stepping rotary motor to start so that the one-N opening of the closing device is aligned with the opening of one of the hydrogen storage areas, and at the same time controls the cooling medium release device to release the heated cooling medium.

[0025] The above technical solution of the present invention has at least the following beneficial effects:

[0026] (1) The solid-state hydrogen storage device provided by the present invention is provided with a plurality of mutually independent hydrogen storage areas, a stepping rotary motor and a closing device with an opening, and the closing device is driven to rotate by the stepping rotary motor to realize the opening or closing of a single hydrogen storage area, thereby realizing the switching of the hydrogen charging and discharging areas, that is, the hydrogen charging and discharging process can be controlled by zone rotation, and hydrogen is only charged and discharged in a single hydrogen storage area each time, while other hydrogen storage areas are in a stable state, thereby realizing precise regional temperature control, which can effectively avoid the temperature of the hydrogen storage area in the hydrogen charging and discharging state from being too high, thereby improving the efficiency and safety of the device during the hydrogen charging and discharging process.

[0027] (2) The solid-state hydrogen storage device provided by the present invention is provided with a cooling medium storage container and a cooling medium collecting device, and through the integrated circulating cooling system of the power device, the recycling of the cooling medium (such as cooling water) is realized, the waste of cooling medium resources is reduced, and heating can be performed during hydrogen release to meet the heat demand of the hydrogen release reaction.

[0028] (3) The solid-state hydrogen storage device provided by the present invention, through the control of the controller, with the aid of a stepping rotary motor and a sealing device, can switch the hydrogen storage area in time and continue to work when the temperature of the hydrogen storage area in the working state is too high or too low, thereby enabling each hydrogen storage area to always maintain a suitable temperature, ensuring that the hydrogen storage material always works at the optimal temperature, which can significantly improve the hydrogen charging and discharging efficiency of the device.

[0029] (4) The solid-state hydrogen storage device provided by the present invention has a compact structure and strong adaptability, and realizes the integration and compact design of the hydrogen storage device system, so that the device has the potential for application in mobile scenarios, especially suitable for vehicles or other scenarios with limited space. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0031] Figure 1 A front view of a solid-state hydrogen storage device based on zoning management provided by an embodiment of the present invention;

[0032] Figure 2 A top view of a solid-state hydrogen storage device based on zoning management provided in an embodiment of the present invention.

[0033] Description of reference numerals:

[0034] 1. Shell; 2. Hydrogen storage container; 3. Cooling medium cavity; 4. Cooling medium release device; 5. Hydrogen storage area; 6. Hydrogen charging and discharging port; 7. Stepper rotary motor; 8. Closing device; 9. Cooling medium storage container; 10. Heating device; 11. Cooling medium collection container; 12. Liquid level sensor; 13. Power unit; 14. Temperature sensor. DETAILED DESCRIPTION

[0035] The following examples are provided for a better understanding of the present invention, but are not intended to limit the best mode of implementation, nor to limit the content and protection scope of the present invention. Any product identical or similar to the present invention obtained by anyone under the inspiration of the present invention or by combining the features of the present invention with other prior arts shall fall within the protection scope of the present invention.

[0036] If no specific experimental steps or conditions are specified in the examples, the conventional experimental steps or conditions described in the literature in the field can be used. If no manufacturer is specified for the reagents or instruments used, they are all conventional reagent products that can be obtained commercially.

[0037] The present invention is further described in detail below in conjunction with specific embodiments. These embodiments should not be construed as limiting the scope of protection claimed by the present invention.

[0038] Figure 1 A front view of a solid-state hydrogen storage device based on zoning management provided by an embodiment of the present invention, Figure 2 A top view of a solid-state hydrogen storage device based on zoning management provided in an embodiment of the present invention.

[0039] like Figure 1 and Figure 2 As shown, the solid-state hydrogen storage device based on zoning management provided by an embodiment of the present invention includes a shell 1 and a hydrogen storage container 2 arranged inside the shell 1. There is a cooling medium cavity 3 between the shell 1 and the hydrogen storage container 2, and M cooling medium release devices 4 are arranged on the inner wall of the cooling medium cavity 3. The interior of the hydrogen storage container 2 is longitudinally divided into N mutually independent hydrogen storage areas 5, and solid hydrogen storage materials are arranged in the hydrogen storage areas 5. At least one cooling medium release device 4 is arranged corresponding to each hydrogen storage area 5, M and N are integers greater than or equal to 2, and M is not less than N.

[0040] In one embodiment of the present invention, the hydrogen storage container 2 is further provided with a hydrogen charging and discharging port 6, a stepping rotary motor 7 and a closing device 8. The closing device 8 has a 1 / N opening and is rotatably arranged at the opening of each hydrogen storage area 5 to close the opening of each hydrogen storage area 5; the stepping rotary motor 7 is used to drive the closing device 8 to rotate, so that each time the closing device 8 rotates once, the 1 / N opening can be aligned with the opening of one hydrogen storage area 5; the hydrogen charging and discharging port 6 is connected to the 1 / N opening of the closing device 8.

[0041] Exemplarily, the shell 1 may be in the shape of a rectangular parallelepiped, and its material may be metal, and it mainly plays the function of overall support and sealing. The hydrogen storage container 2 may be a hydrogen storage bottle. The gap between the shell 1 and the hydrogen storage container 2 constitutes a cooling medium cavity 3, and four cooling medium release devices 4 (#1P, #2P, #3P, #4P) are arranged on its inner wall. The interior of the hydrogen storage container 2 is longitudinally divided into four independent hydrogen storage areas 5 (#1C, #2C, #3C, #4C). The four cooling medium release devices 4 are respectively arranged corresponding to the four hydrogen storage areas 5. The outlet of the cooling medium release device 4 is directly facing the hydrogen storage area 5 to ensure that the released cooling medium can quickly cover the corresponding area.

[0042] Accordingly, the sealing device 8 has a quarter opening, and the four hydrogen storage areas 5 are switched in working state by the stepping rotary motor 7 in cooperation with the sealing device 8. The stepping rotary motor 7 drives the sealing device 8 to rotate 90 degrees, and selects one hydrogen storage area 5 for charging and discharging hydrogen in turn, and the remaining areas are sealed so that the reaction is carried out only in the selected area.

[0043] In one embodiment of the present invention, the solid-state hydrogen storage device further includes a cooling medium storage container 9. The cooling medium storage container 9 is arranged above the housing 1. The cooling medium storage container 9 is connected to each cooling medium release device 4, and is used to provide cooling medium to the cooling medium release device 4. A heating device 10 is arranged in the cooling medium storage container 9.

[0044] Exemplarily, the cooling medium storage container 9 may be a water tank for storing coolant. The heating device 10 may be a heating wire. When the hydrogen storage device is in a hydrogen release state, the heating wire is activated to heat the coolant to a set temperature (e.g., 50° C.) and supply the heat required by the hydrogen storage material to maintain the hydrogen release rate. The cooling medium may be cooling water, and the cooling medium release device 4 may be a spray head for spraying cooling water onto the outer wall of the corresponding hydrogen storage area 5.

[0045] In one embodiment of the present invention, the solid-state hydrogen storage device further includes a cooling medium collecting device. The cooling medium collecting device is arranged below the hydrogen storage container 2, and includes a cooling medium collecting container 11, a liquid level sensor 12 and a power device 13. The liquid level sensor 12 is used to detect the liquid level of the cooling medium in the cooling medium collecting container 11, and the power device 13 is used to transport the cooling medium in the cooling medium collecting container 11 to the cooling medium storage container 9.

[0046] In one embodiment of the present invention, a plurality of temperature sensors 14 are disposed on the outer wall of the hydrogen storage container 2, and the temperature sensors 14 are used to detect the surface temperature of the hydrogen storage container 2. At least one temperature sensor 14 is disposed corresponding to each hydrogen storage area 5.

[0047] Exemplarily, the temperature sensor 14 may be a thermistor, specifically a NTC B3435 10K thermistor, for temperature monitoring. The number of thermistors may be four (#1N, #2N, #3N, #4N), corresponding to four hydrogen storage areas 5 (#1C, #2C, #3C, #4C), respectively. The thermistor is closely attached to the outer wall surface of the hydrogen storage container 2 under the protection of the film head, ensuring close contact between the two to ensure the accuracy and rapid response of temperature monitoring.

[0048] In one embodiment of the present invention, in order to achieve the purpose of intelligent temperature control, the solid-state hydrogen storage device also includes a controller (not shown in the figure), which is electrically connected to the cooling medium release device 4, the stepping rotary motor 7, the heating device 10, the liquid level sensor 12, the power device 13 and the temperature sensor 14 respectively.

[0049] In one embodiment of the present invention, the controller is capable of obtaining the surface temperature of the hydrogen storage container 2 detected by the temperature sensor 14, and when the surface temperature of the hydrogen storage container 2 is higher or lower than a preset temperature, the controller controls the heating device 10, the cooling medium release device 4, and the stepping rotary motor 7 to turn on or off.

[0050] In addition, the controller can obtain the liquid level of the cooling medium in the cooling medium collecting container 11 detected by the liquid level sensor 12, and when the liquid level is higher than the preset liquid level, control the power device 13 to start, so as to transport the cooling medium in the cooling medium collecting container 11 to the cooling medium storage container 9.

[0051] In one embodiment of the present invention, when the solid-state hydrogen storage device is in a hydrogen charging state, the controller controls the heating device 10 to be turned off, and controls the stepping rotary motor 7 to start so that the one-Nth opening of the closing device 8 is aligned with the opening of one of the hydrogen storage areas 5, so as to perform hydrogen charging; when the surface temperature of the hydrogen storage area 5 in the hydrogen charging state is higher than the first preset temperature, the cooling medium release device 4 is controlled to release the cooling medium; when the surface temperature of the hydrogen storage area 5 in the hydrogen charging state is higher than the second preset temperature, the stepping rotary motor 7 is controlled to start again so that the one-Nth opening of the closing device 8 is aligned with the opening of the next hydrogen storage area 5, so as to perform hydrogen charging;

[0052] In addition, when the solid-state hydrogen storage device is in a hydrogen release state, the controller controls the heating device 10 to turn on, heats the cooling medium in the cooling medium storage container 9 to a third preset temperature, and controls the stepping rotary motor 7 to start so that the one-N opening of the closing device 8 is aligned with the opening of one of the hydrogen storage areas 5, and at the same time controls the cooling medium release device 4 to release the heated cooling medium.

[0053] The following describes some specific structures and working principles of the solid-state hydrogen storage device involved in the embodiments of the present invention:

[0054] 1. Mechanical structure of the device

[0055] 1.1. Partitioned hydrogen storage bottles:

[0056] The interior of the hydrogen storage bottle is evenly divided into four independent hydrogen storage areas, numbered #1C, #2C, #3C, and #4C. Each hydrogen storage area is structurally isolated from each other to avoid heat transfer interference and gas mixing. The mouth of the hydrogen storage bottle is connected to a stepper rotary motor, which drives a closed mouth with a 1 / 4 opening to rotate. Each rotation of 90 degrees can accurately align with any hydrogen storage area to achieve hydrogen charging and discharging operations in a specific area, while other areas remain closed.

[0057] 1.2, Stepper rotary motor and closed mouth assembly:

[0058] The stepper rotary motor is installed at the mouth of the hydrogen storage bottle. The motor drives a 1 / 4 opening closed mouth. The closed mouth structure corresponds to the hydrogen storage area partition inside the hydrogen storage bottle. The stepper rotary motor rotates 90 degrees each time during the hydrogen charging and discharging process, so that the opening of the closed mouth switches to different hydrogen storage areas, and the hydrogen charging and discharging operations are performed in sequence. In this way, each area can be controlled separately in turn during the hydrogen charging and discharging process, avoiding the overheating problem caused by the hydrogen charging process.

[0059] 1.3. Temperature detection system:

[0060] NTC B3435 10K thermistors (numbered #1N, #2N, #3N, and #4N) are installed on the outer wall of each hydrogen storage area to detect the temperature of the outer surface of each area in real time. Each thermistor is wrapped in a plastic film into a thin sheet, close to the metal outer surface of the hydrogen storage bottle, with high sensitivity, waterproof and insulating properties. The thermistor feeds back temperature data to the controller, and the controller adjusts the working state of the sprinkler head according to temperature changes.

[0061] 1.4. Partitioned spray cooling / heating system:

[0062] There are four spray heads installed on the outer wall of the hydrogen storage bottle, numbered #1P, #2P, #3P, and #4P, corresponding to the outer wall surfaces of the four hydrogen storage areas. When the outer wall temperature of a hydrogen storage area is detected to exceed the preset value (such as 35°C), the controller starts the corresponding spray head to cool the area. When the temperature of the area returns to 25°C, the spray head automatically stops working.

[0063] The spray cooling / heating system includes a water tank on the top for storing water for cooling or heating. During the hydrogen discharge process, the controller heats the water to an appropriate temperature through the heating wire in the water tank, providing heating water for the hydrogen storage bottle to supplement the heat absorption demand of the hydrogen discharge process and ensure a stable hydrogen discharge rate.

[0064] 1.5. Water storage tank and water circulation system:

[0065] A water tank is installed on the top of the hydrogen storage device, equipped with a heating wire, for storing cooling / heating water. A water collecting tank is installed at the bottom of the hydrogen storage device to collect the water after spraying. The water collecting tank is equipped with a float level sensor and a DC water pump. When the water level in the water collecting tank reaches 3 / 4, the float level sensor triggers the controller to start the DC water pump to pump water from the water collecting tank back to the water storage tank; when the liquid level is lower than 1 / 4, the DC water pump stops working. This water circulation system can reduce the loss of cooling water and ensure the continuous supply of water.

[0066] 2. Circuit composition

[0067] 2.1、Controller:

[0068] The controller is responsible for receiving data from thermistors in each area, determining the temperature status of each area, and controlling the working status of the stepper rotary motor and the sprinkler head to achieve a dynamic balance of temperature in each area. The controller is connected to the stepper rotary motor and controls its rotation angle to switch the hydrogen storage area for charging and discharging hydrogen, and regulates the frequency of the stepper rotary motor according to the preset program to ensure that the time and temperature conditions of each hydrogen charging and discharging meet the optimal requirements.

[0069] 2.2 Temperature monitoring and feedback loop:

[0070] Each thermistor is connected to the controller to transmit temperature data in real time. The controller adjusts the sprinkler head based on the temperature feedback to ensure that the temperature remains within the preset safe range during hydrogen charging or dehydration.

[0071] 2.3 Water tank level monitoring and circulation control circuit:

[0072] The float level sensor in the water collection tank is connected to the controller. When the water level is too high, the DC water pump is started to pump the water in the water collection tank back to the top water storage tank to form a closed loop. This circuit is also connected to the water tank heating wire to heat the water source in the water storage tank during hydrogen discharge, so as to provide hot water spray for the hydrogen discharge area.

[0073] 3. Operation steps

[0074] 3.1. Hydrogen charging process:

[0075] The controller starts the stepper rotary motor, aligns the 1 / 4 opening of the closed port with the #1C area, and starts to charge hydrogen into the #1C area. The controller monitors the temperature of the #1C area through the #1N thermistor. When the temperature exceeds 35°C, the controller starts the #1P spray head for cooling and spraying. When the temperature continues to rise to 55°C, the controller controls the stepper rotary motor to rotate 90 degrees, switching the hydrogen charging area to #2C, and #1P continues to cool #1C until the temperature returns to 25°C.

[0076] 3.2. Hydrogen release process:

[0077] The controller aligns the stepper rotary motor with the area to be dehydrogenated. Since the hydrogen storage material needs to absorb heat to dehydrogenate, the controller activates the heating wire in the water storage tank to heat the spray water into hot water. The hot water is sprayed onto the outer wall of the dehydrogenation area through the corresponding spray head, providing the required heat for the dehydrogenation process and ensuring a stable dehydrogenation rate.

[0078] 3.3 Dynamic switching control of hydrogen filling process:

[0079] Through the cooperation of the controller and the stepping rotary motor, when the temperature reaches the specified upper limit (e.g. 55°C), the system automatically switches the hydrogen charging area to ensure that the area for each hydrogen charging is at the optimal temperature condition. In this way, the hydrogen charging area is switched alternately between the partitions in turn, ensuring that each area has enough cooling time to recover to the appropriate hydrogen charging temperature during the cycle switching.

[0080] When the system completes a hydrogen charging cycle in the #4C area, the status of the four areas in the hydrogen storage bottle are: #1C is in standby status, #2C and #3C are in spray cooling recovery status, and #4C is in hydrogen charging device status.

[0081] The above steps will be repeated in the same sequence to ensure that there is always a partition in the hydrogen charging state, and the area in the cooling and recovery state can enter the next hydrogen charging at the optimal temperature.

[0082] Through this sequential partitioned hydrogen charging and cooling control, the hydrogen charging area can always be maintained at an appropriate temperature to achieve the best hydrogen charging rate. At the same time, by preventing the hydrogen storage material from continuously working at high temperatures, the degradation of the material's hydrogen absorption performance and hydrogen storage stability caused by excessive temperature are avoided, ensuring the efficient and safe operation of the entire hydrogen storage device.

[0083] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A solid-state hydrogen storage device based on zoning management, characterized in that: The solid-state hydrogen storage device comprises a shell and a hydrogen storage container arranged inside the shell; wherein, There is a cooling medium cavity between the shell and the hydrogen storage container, and M cooling medium release devices are arranged on the inner wall of the cooling medium cavity; The interior of the hydrogen storage container is longitudinally divided into N mutually independent hydrogen storage areas, and solid hydrogen storage materials are arranged in the hydrogen storage areas; at least one cooling medium release device is correspondingly arranged in each hydrogen storage area, M and N are integers greater than or equal to 2, and M is not less than N; The hydrogen storage container is also provided with a hydrogen charging and discharging port, a stepping rotary motor and a closing device; the closing device has a one-N opening and is rotatably arranged at the opening of each hydrogen storage area for closing the opening of each hydrogen storage area; the stepping rotary motor is used to drive the closing device to rotate, so that each time the closing device rotates once, the one-N opening can be aligned with an opening of the hydrogen storage area; the hydrogen charging and discharging port is connected to the one-N opening of the closing device.

2. The solid-state hydrogen storage device according to claim 1, characterized in that: The solid-state hydrogen storage device also includes a cooling medium storage container; The cooling medium storage container is arranged above the shell; The cooling medium storage container is in communication with each of the cooling medium releasing devices, and is used to provide cooling medium to the cooling medium releasing devices.

3. The solid-state hydrogen storage device according to claim 2, characterized in that: A heating device is arranged in the cooling medium storage container.

4. The solid-state hydrogen storage device according to claim 1, characterized in that: The cooling medium releasing device is a spray head, which is used to spray the cooling medium onto the outer wall surface of the corresponding hydrogen storage area.

5. The solid-state hydrogen storage device according to claim 2, characterized in that: The solid-state hydrogen storage device also includes a cooling medium collection device; The cooling medium collecting device is arranged below the hydrogen storage container, and includes a cooling medium collecting container, a liquid level sensor and a power device; the liquid level sensor is used to detect the liquid level of the cooling medium in the cooling medium collecting container, and the power device is used to transport the cooling medium in the cooling medium collecting container to the cooling medium storage container.

6. The solid-state hydrogen storage device according to claim 1, characterized in that: A plurality of temperature sensors are arranged on the outer wall of the hydrogen storage container, and the temperature sensors are used to detect the surface temperature of the hydrogen storage container; wherein, At least one temperature sensor is correspondingly arranged in each hydrogen storage area.

7. The solid-state hydrogen storage device according to any one of claims 1 to 6, characterized in that: The solid-state hydrogen storage device also includes a controller, which is electrically connected to the cooling medium release device, the stepping rotary motor, the heating device, the liquid level sensor, the power device and the temperature sensor respectively.

8. The solid-state hydrogen storage device according to claim 7, characterized in that: The controller can obtain the surface temperature of the hydrogen storage container detected by the temperature sensor, and control the heating device, the cooling medium release device, and the stepping rotary motor to turn on or off when the surface temperature of the hydrogen storage container is higher or lower than a preset temperature; And / or, the controller is capable of obtaining the liquid level of the cooling medium in the cooling medium collecting container detected by the liquid level sensor, and when the liquid level is higher than a preset liquid level, controlling the power device to start up so as to transport the cooling medium in the cooling medium collecting container to the cooling medium storage container.

9. The solid-state hydrogen storage device according to claim 8, characterized in that: When the solid-state hydrogen storage device is in a hydrogen charging state, the controller controls the heating device to be turned off, and controls the stepping rotary motor to start so that the one-Nth opening of the closing device is aligned with the opening of one of the hydrogen storage areas for hydrogen charging; when the surface temperature of the hydrogen storage area in the hydrogen charging state is higher than the first preset temperature, the cooling medium releasing device is controlled to release the cooling medium; when the surface temperature of the hydrogen storage area in the hydrogen charging state is higher than the second preset temperature, the stepping rotary motor is controlled to start again so that the one-Nth opening of the closing device is aligned with the opening of the next hydrogen storage area for hydrogen charging; And / or, when the solid-state hydrogen storage device is in a hydrogen release state, the controller controls the heating device to turn on, heats the cooling medium in the cooling medium storage container to a third preset temperature, and controls the stepping rotary motor to start so that the one-N opening of the closing device is aligned with the opening of one of the hydrogen storage areas, and at the same time controls the cooling medium release device to release the heated cooling medium.

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