Modular solid state hydrogen storage system and applications thereof

Abstract

The application belongs to the field of solid-state hydrogen storage. A modular solid-state hydrogen storage system and its application are provided. The modular solid-state hydrogen storage system comprises a heat exchange unit, a hydrogen storage material unit, the heat exchange unit is located on one side surface of the hydrogen storage material unit, the hydrogen storage material unit comprises a plurality of hydrogen storage material sub-units, the hydrogen storage material sub-units are used for storing hydrogen storage materials, and the heat exchange unit is used for providing heat energy to the hydrogen storage material unit; a hydrogen storage chamber is located on the side of the hydrogen storage material unit away from the heat exchange unit, and the hydrogen storage chamber is used for storing hydrogen released by the hydrogen storage material. In the modular solid-state hydrogen storage system, a plurality of hydrogen storage material sub-units can be combined to form a hydrogen storage module, a plurality of hydrogen storage modules can be combined in series and in parallel to improve the hydrogen storage capacity and adapt to different space requirements, and the hydrogen storage material sub-units can also realize efficient hydrogen absorption and release.

Description

Technical Field

[0001] This application relates to the field of solid-state hydrogen storage technology, and in particular to a modular solid-state hydrogen storage system and its application. Background Technology

[0002] Hydrogen energy is a clean energy source with promising prospects. Current research on hydrogen energy mainly focuses on three aspects: hydrogen production, hydrogen storage, and hydrogen applications. Hydrogen storage is generally categorized into gaseous, liquid, and solid-state storage. However, gaseous hydrogen storage requires large cylinder volumes and has low storage density, while liquid hydrogen storage requires cryogenic maintenance and has low energy conversion rates. With in-depth research, solid-state hydrogen storage technology is receiving increasing attention, especially with the emergence of more inexpensive solid-state hydrogen storage materials, making its practical application possible.

[0003] However, current modular solid-state hydrogen storage systems are under high pressure during hydrogen release, which makes it difficult to control the pressure and thus makes the hydrogen storage rate uncontrollable and challenging. In addition, the hydrogen storage materials in the modular solid-state hydrogen storage system are not fully utilized due to uneven heating, resulting in energy waste. Furthermore, the modular solid-state hydrogen storage system is difficult to replace and maintain.

[0004] It should be noted that the above content is not necessarily prior art, nor is it intended to limit the scope of patent protection of this application. Summary of the Invention

[0005] This application provides a modular solid-state hydrogen storage system and its application to solve or alleviate one or more of the technical problems mentioned above.

[0006] A first aspect of this application provides a modular solid-state hydrogen storage system. The modular solid-state hydrogen storage system includes a heat exchange unit; a hydrogen storage material unit, the heat exchange unit being located on one side of the hydrogen storage material unit, the hydrogen storage material unit including multiple hydrogen storage material sub-units for storing hydrogen storage material, the heat exchange unit being used for heat exchange with the hydrogen storage material unit; and a hydrogen storage chamber, the hydrogen storage chamber being located on the side of the hydrogen storage material unit away from the heat exchange unit, the hydrogen storage chamber being used to store hydrogen gas released by the hydrogen storage material.

[0007] The modular solid-state hydrogen storage system of this application allows for control of the hydrogen release rate during the release process. Each hydrogen storage material subunit acts as an independent unit, with controllable pressure during release, virtually eliminating the risk of excessive pressure in a single chamber. The independent design of the hydrogen storage material subunits ensures uniform heating of the material, thereby improving its utilization rate and reducing energy waste. Furthermore, when replacing the hydrogen storage material, the storage chamber can be removed, and only a portion of the subunits needs replacement, making material replacement more convenient and faster. This allows for rapid energy replenishment of the modular solid-state hydrogen storage system. Multiple subunits can be arbitrarily combined to form hydrogen storage modules, and these modules can be connected in series and parallel to increase storage capacity and adapt to different space requirements. The subunits also enable efficient hydrogen absorption and release. In summary, the modular solid-state hydrogen storage system of this application increases the reaction area of ​​the hydrogen storage material, ensuring a more complete reaction and improving absorption and release efficiency.

[0008] According to an embodiment of this application, the heat exchange unit includes a cooling unit and a heating plate. The cooling unit is located on the side of the hydrogen storage material unit away from the hydrogen storage chamber, and the cooling unit is used to cool the hydrogen storage material unit. The heating plate is located on the side of the cooling unit away from the hydrogen storage material unit.

[0009] According to an embodiment of this application, the heat exchange unit includes a heat collection unit that supplies heat to the hydrogen storage material unit through a heating plate. The heat collection unit is located on the side of the heating plate away from the cooling unit.

[0010] According to an embodiment of this application, a first temperature sensor is provided on the heating plate. The first temperature sensor is used to detect a first temperature of the heating plate and send the first temperature to a controller. The controller is used to control the cooling unit to turn on the cooling medium when it determines that the first temperature is equal to a first temperature threshold, so as to reduce the temperature of the heating plate.

[0011] According to an embodiment of this application, a first temperature sensor is provided on the heating plate. The first temperature sensor is used to detect a first temperature of the heating plate and send the first temperature to a controller. The controller is used to control the heat collection unit to stop supplying heat to the hydrogen storage material unit when it determines that the first temperature is equal to a second temperature threshold.

[0012] According to an embodiment of this application, the hydrogen storage material subunit includes a hydrogen storage material subchamber and a capsule. The capsule is located in the hydrogen storage material subchamber. A protruding structure is provided at the bottom of the hydrogen storage material subchamber. A vent hole is provided on the protruding structure. The protruding structure is connected to the capsule so that the hydrogen gas released by the hydrogen storage material in the capsule is transmitted to the hydrogen storage chamber through the vent hole.

[0013] According to an embodiment of this application, the modular solid-state hydrogen storage system includes a plurality of hydrogen storage material units, and the plurality of hydrogen storage material units are combined in series or in parallel.

[0014] According to an embodiment of this application, the plurality of sub-hydrogen storage material units are arranged in an array.

[0015] According to an embodiment of this application, it further includes: a cover plate located on the side of the hydrogen storage chamber away from the hydrogen storage material unit, and on the side of the heat collection unit away from the hydrogen storage material unit.

[0016] A second aspect of this application provides an application of the modular solid-state hydrogen storage system of the first aspect, the application including the application of the modular solid-state hydrogen storage system in on-board energy storage. Attached Figure Description

[0017] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the various drawings denote the same or similar parts or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings depict only some embodiments disclosed in this application and should not be construed as limiting the scope of this application.

[0018] Figure 1 This is a schematic diagram of the structure of a modular solid-state hydrogen storage system provided in some embodiments of this application;

[0019] Figure 2 This is a schematic diagram of the structure of a modular solid-state hydrogen storage system provided in other embodiments of this application;

[0020] Figure 3 This is a schematic diagram of the structure of a hydrogen storage material unit provided in some embodiments of this application;

[0021] Figure 4 This is a schematic diagram of the structure of a hydrogen storage material unit provided in other embodiments of this application;

[0022] Figure 5 This is a schematic diagram of the structure of a hydrogen storage material unit provided in some embodiments of this application.

[0023] Figure 6 This is a schematic diagram of a structure in which multiple hydrogen storage material units are connected in series, as provided in some embodiments of this application;

[0024] Figure 7 This is a schematic diagram of a structure in which multiple hydrogen storage material units are connected in parallel, according to some embodiments of this application;

[0025] Figure 8 This is a schematic diagram of the structure of multiple hydrogen storage material units connected in series and in parallel according to some embodiments of this application;

[0026] Figure 9 This is a schematic diagram of the structure of a modular solid-state hydrogen storage system provided in some embodiments of this application;

[0027] Figure 10 This is a schematic diagram of the heat cycle of a modular solid-state hydrogen storage system provided in some embodiments of this application.

[0028] Explanation of reference numerals in the attached figures:

[0029] 1: Heat exchange unit; 2: Hydrogen storage material unit; 21: Hydrogen storage material sub-unit; 22: Protruding structure; 3: Hydrogen storage chamber; 31: Gas outlet; 4: Cooling unit; 41: Channel; 5: Heat collection unit; 51: Pipe; 6: Heating plate; 7: End plate; 8: Internal combustion engine. Detailed Implementation

[0030] The embodiments of this application are described in detail below, examples of which are illustrated in the accompanying drawings. In the drawings, for clarity, the dimensions of layers, regions, and elements, as well as their relative dimensions, may be exaggerated. Throughout, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.

[0031] It should be understood that when an element or layer is referred to as "on," "adjacent to," "connected to," or "coupled to" other elements or layers, it may be directly on, adjacent to, connected to, or coupled to other elements or layers, or there may be intervening elements or layers. Conversely, when an element is referred to as "directly on," "directly adjacent to," "directly connected to," or "directly coupled to" other elements or layers, there are no intervening elements or layers. It should be understood that although the terms first, second, third, etc., may be used to describe various elements, components, areas, layers, and / or portions, these elements, components, areas, layers, and / or portions should not be limited by these terms. These terms are only used to distinguish one element, component, area, layer, or portion from another element, component, area, layer, or portion. Therefore, without departing from the teachings of this application, the first element, component, area, layer, or portion discussed below may be referred to as a second element, component, area, layer, or portion. And the discussion of a second element, component, area, layer, or portion does not imply that the first element, component, area, layer, or portion necessarily exists in this application.

[0032] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0033] Currently, hydrogen storage materials are all stored in a single storage chamber. This results in the materials being stacked together in a single manner, leading to problems such as low effective reaction area and uneven heating during hydrogen release, which in turn results in low hydrogen storage and release efficiency. In addition, the shape of the current individual hydrogen storage chambers is also limited (e.g., they cannot be made into irregular shapes), limiting their applicable scenarios.

[0034] Accordingly, a first aspect of the embodiments of this application provides a modular solid-state hydrogen storage system. (See reference...) Figure 1The modular solid-state hydrogen storage system includes a heat exchange unit 1; a hydrogen storage material unit 2, wherein the heat exchange unit is located on one side surface of the hydrogen storage material unit, the hydrogen storage material unit includes multiple hydrogen storage material sub-units, the hydrogen storage material sub-units are used to store hydrogen storage material, and the heat exchange unit is used to exchange heat with the hydrogen storage material unit; and a hydrogen storage chamber 3, wherein the hydrogen storage chamber is located on the side of the hydrogen storage material unit away from the heat exchange unit, and the hydrogen storage chamber is used to store hydrogen gas released by the hydrogen storage material.

[0035] The modular solid-state hydrogen storage system of this application allows for control of the hydrogen release rate during the release process. Each hydrogen storage material subunit acts as an independent unit, with controllable pressure during release, virtually eliminating the risk of excessive pressure in a single chamber. The independent design of the hydrogen storage material subunits increases the effective reaction area, promoting uniform heating of the hydrogen storage material and thus improving its utilization rate and reducing energy waste. Furthermore, when replacing the hydrogen storage material, the storage chamber can be removed, and only a portion of the hydrogen storage material subunits need to be replaced, making material replacement more convenient and faster. This allows for rapid energy replenishment of the modular solid-state hydrogen storage system. Multiple hydrogen storage material subunits can be arbitrarily combined to form hydrogen storage modules, and series-parallel connections between these modules can increase storage capacity and adapt to different space requirements. The reduced heat exchange requirements of the hydrogen storage material subunits enable efficient hydrogen absorption and release. In summary, the modular solid-state hydrogen storage system of this application increases the reaction area of ​​the hydrogen storage material, ensuring a more complete reaction and improving hydrogen absorption and release efficiency.

[0036] In some embodiments, the hydrogen storage chamber includes a single chamber or multiple sub-hydrogen storage chambers. Each sub-hydrogen storage chamber is configured to correspond to a hydrogen storage material sub-unit, so that the sub-hydrogen storage chamber is used to store hydrogen.

[0037] Furthermore, the hydrogen storage chamber is provided with a gas outlet 31.

[0038] In some embodiments, reference Figure 2 The heat exchange unit includes a cooling unit 4. The cooling unit 4 is located on the side of the hydrogen storage material unit 2 away from the hydrogen storage chamber, and is used to cool the hydrogen storage material unit. By introducing the cooling unit, when hydrogen release stops, the hydrogen storage material unit can be cooled down, reducing the heat received by the hydrogen storage material unit, thereby reducing the hydrogen release rate of the hydrogen storage material unit, or even stopping hydrogen release altogether.

[0039] Optionally, the cooling unit includes a cooling plate.

[0040] Alternatively, the cooling medium may include air and liquid cooling medium.

[0041] Optionally, the liquid cooling medium includes water.

[0042] In one specific embodiment, reference is made to... Figure 2 The cooling plate has an array of channels 41. These channels are used for the transport of the cooling medium. This uniformly distributed cooling medium makes the cooling plate a homogeneous cooling plate. This can reduce problems such as thermal control failure caused by uneven heat absorption in the various hydrogen storage material sub-units in the hydrogen storage chamber, resulting in uneven reaction rates among the various hydrogen storage material sub-units. In addition, it can also reduce the reduction in the service life and performance of the modular solid-state hydrogen storage system caused by uneven heat distribution.

[0043] In some embodiments, reference Figure 2 The heat exchange unit includes a heating plate 6 and a heat collection unit 5. The heating plate 6 is located on the side of the cooling unit 4 away from the hydrogen storage material unit 2, and the heat collection unit 5 is located on the side of the heating plate 6 away from the cooling unit 4. During heating, the heat collection unit supplies heat to the hydrogen storage material unit through the heating plate.

[0044] In some specific embodiments, reference is made to Figure 2 Heat is introduced from heat collection unit 5 through pipe 51 for heat transfer.

[0045] Furthermore, the pipes on the heat collection unit are evenly arranged, allowing heat to be uniformly transferred to the heating plate, thus making the heating plate act as a heat spreader, ensuring even heat distribution. This reduces heat waste caused by uneven heat distribution and minimizes problems such as uneven material reaction within the various hydrogen storage material sub-units due to uneven heating. Moreover, the heat spreader solves the thermal management problem, as it can directly contact the hydrogen storage material unit.

[0046] Optionally, the heating plate may be made of at least one of copper or aluminum.

[0047] As an example, both the heating plate and the cooling plate are heat exchange plates. The cooling plate can regulate the heat transferred from the heating plate using a cooling medium such as air cooling or a liquid cooling medium. For example, by introducing a cooling medium, the hydrogen storage material sub-unit can absorb less heat, thereby reducing its hydrogen release rate and making the hydrogen release reaction of the hydrogen storage material controllable.

[0048] In some embodiments, a first temperature sensor is provided on the heating plate. The first temperature sensor is used to detect a first temperature of the heating plate and send the first temperature to a controller. The controller is used to control the cooling unit to turn on the cooling medium when it determines that the first temperature is equal to a first temperature threshold, so as to reduce the temperature of the heating plate.

[0049] In some embodiments, a first temperature sensor is provided on the heating plate. The first temperature sensor is used to detect a first temperature of the heating plate and send the first temperature to a controller. The controller is used to control the heat collection unit to stop supplying heat to the hydrogen storage material unit when it determines that the first temperature is equal to a second temperature threshold.

[0050] In some embodiments, reference Figure 3 The hydrogen storage material subunits 21 are arranged in an array.

[0051] In some embodiments, reference Figure 3 The hydrogen storage material subunit 21 is provided with a protruding structure 22. The protruding structure is provided with a vent hole for supplying hydrogen to the hydrogen storage chamber.

[0052] In some embodiments, the hydrogen storage material subunit includes a hydrogen storage material subchamber and a capsule, the capsule being located in the hydrogen storage material subchamber, the bottom of the hydrogen storage material subchamber having a protruding structure with a vent hole, the protruding structure being connected to the capsule so that hydrogen gas released by the hydrogen storage material inside the capsule is transmitted to the hydrogen storage chamber through the vent hole.

[0053] In some embodiments, the modular solid-state hydrogen storage system includes multiple hydrogen storage material units, which are arranged in series and / or parallel. This maximizes space utilization, allowing for the placement of more hydrogen storage material sub-chambers within a given space. Furthermore, different series and parallel connection methods can meet different application scenarios.

[0054] In some embodiments, the shape of the hydrogen storage material unit is not particularly limited. It can be designed according to actual needs, such as square, circular, irregular polygon, elliptical, irregular circular, or irregular shape. In this way, the modular solid-state hydrogen storage system can be applied to different scenarios. For example, using an irregular shape for the hydrogen storage material unit can be matched to actual application scenarios. In addition, the design of the hydrogen storage material sub-units also enables the design of irregularly shaped hydrogen storage material units, further enabling the modular solid-state hydrogen storage system of this application to be applied to a wider range of scenarios.

[0055] As an example, see reference Figure 4 and Figure 5 The hydrogen storage material unit 2 has a triangular shape and an irregular circle shape. The hydrogen storage material subunit 21 can be arranged according to the shape of the hydrogen storage material unit.

[0056] In some embodiments, reference Figure 6 Multiple hydrogen storage material units are arranged in series.

[0057] As an example, this series-connected hydrogen storage material unit is used in hydrogen fuel cell vehicles. When the hydrogen storage system needs to be placed in the trunk, multiple hydrogen storage material units can be connected in series because the trunk is wider and taller.

[0058] In some embodiments, reference Figure 7 Multiple hydrogen storage material units are arranged in parallel.

[0059] As an example, this series-connected hydrogen storage material unit is used in hydrogen fuel cell vehicles. When the hydrogen storage system needs to be placed in the chassis, multiple hydrogen storage material units can be connected in parallel because the chassis is wider and lower.

[0060] In some embodiments, reference Figure 8 Multiple hydrogen storage material units are arranged in a manner that combines parallel and series connections. This combination of series and parallel connections makes the hydrogen storage material units suitable for devices requiring large hydrogen storage systems, such as aircraft.

[0061] In some embodiments, the heat collection unit includes vehicle exhaust, boiler preheating, or a thermal energy device.

[0062] In some embodiments, the storage material may be selected from one or any combination of M1AlH4, M2(AlH4)2, M3BH4, M4(BH4)2, M5(BH4)3, M6NH2, M7(NH2)2, Li2NH, MgNH, lithium magnesium amide, and lithium magnesium imide. Specifically, M1 may be Li, Na, or Al; M2 may be Mg or Ca; M3 may be Li, Na, or K; M4 may be Mg or Ca; M5 may be Al or Ti; M6 may be Li or Na; and M7 may be Mg or Ca.

[0063] Furthermore, the temperature required for the above materials to release hydrogen is 25-500℃.

[0064] In some embodiments, reference Figure 9 The modular solid-state hydrogen storage system also includes an end plate 7, which is located on the side of the hydrogen storage chamber away from the hydrogen storage material unit and on the side of the heat collection unit away from the hydrogen storage material unit. The end plate has a vent hole for transporting hydrogen to an external system. In this way, the hydrogen storage chamber acts as a buffer for hydrogen, and the buffered hydrogen is transported to the external system for use via the end plate. Furthermore, the modular solid-state hydrogen storage system with end plates is particularly suitable for use in multiple series-connected hydrogen storage systems, where the generated hydrogen can be drawn out from one end plate or from both end plates.

[0065] A second aspect of this application provides an application of the modular solid-state hydrogen storage system of the first aspect, the application including the application of the modular solid-state hydrogen storage system in on-board energy storage.

[0066] In some embodiments, the on-board energy storage includes mobile machines that require energy, such as automobiles.

[0067] Optionally, this modular solid-state hydrogen storage system has a hydrogen refueling process, an initial hydrogen release process, and a normal hydrogen release process, enabling rapid response for hydrogen emission. Considering the working environment and technical requirements of light rail vehicles, the overall design of the process system fully takes into account their working state, realizing the integrated and continuous operation of the entire system. The entire hydrogen storage and supply system encompasses the complete hydrogen storage and supply process, can be used specifically for on-board applications, and is suitable for hydrogen fuel cell vehicles using solid-state hydrogen storage.

[0068] In some embodiments, reference Figure 10 Taking the application of a modular solid-state hydrogen storage system in automotive energy storage as an example, the vehicle's exhaust gas is transferred to the heating plate 6 via the heat collection unit 5. The heating plate 6 then transfers the heat to the hydrogen storage material unit 2, causing the hydrogen storage material in the hydrogen storage material unit 2 to release hydrogen. The released hydrogen is stored in the hydrogen storage chamber 3, which can serve as an energy source for the internal combustion engine 8. The waste heat generated during the operation of the internal combustion engine can be collected by the heat collection unit 5 and transferred through the heating plate 6 to the hydrogen storage material to provide the energy required for hydrogen release. When hydrogen release stops, the cooling medium in the cooling unit 4 is activated to reduce the temperature of the hydrogen storage material unit 2, thereby achieving slow hydrogen release until it stops. Thus, the modular solid-state hydrogen storage system can complete the cycle between hydrogen use and production.

[0069] It should be noted that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. The directional terms "inner" and "outer" refer to the inside or outside relative to the outline of the component itself. For example, if a device in the drawings is inverted, a device described as "above" or "on top of" other devices or structures will subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein are interpreted accordingly.

[0070] It should also be noted that the terms "some embodiments," "other embodiments," and "embodiments" used in this application refer to specific features, structures, or characteristics described in connection with those embodiments, which are included in at least one embodiment described in the general description of this application. The appearance of the same expression in multiple places in the specification does not necessarily refer to the same embodiment. Furthermore, when a specific feature, structure, or characteristic is described in connection with any embodiment, the intention is to suggest that implementing such a feature, structure, or characteristic in conjunction with other embodiments also falls within the scope of this application.

[0071] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0072] It should also be noted that the above are merely preferred embodiments of this application and do not limit the scope of patent protection of this application. Any equivalent structural or procedural changes made using the content of this application’s specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the scope of patent protection of this application.

Claims

1. A modular solid-state hydrogen storage system, characterized in that, include: Heat exchange unit; A hydrogen storage material unit, wherein the heat exchange unit is located on one side of the hydrogen storage material unit, the hydrogen storage material unit includes multiple hydrogen storage material sub-units, the hydrogen storage material sub-units are used to store hydrogen storage materials, and the heat exchange unit is used to exchange heat with the hydrogen storage material unit; A hydrogen storage chamber is located on the side of the hydrogen storage material unit away from the heat exchange unit. The hydrogen storage chamber is used to store hydrogen released by the hydrogen storage material. The hydrogen storage chamber includes multiple sub-hydrogen storage chambers, each of which is correspondingly arranged with each hydrogen storage material sub-unit. The sub-hydrogen storage chamber is used to store hydrogen. The heat exchange unit includes a cooling unit and a heating plate. The cooling unit is located on the side of the hydrogen storage material unit away from the hydrogen storage chamber. The cooling unit is used to cool the hydrogen storage material unit. The cooling unit includes a cooling plate with an array of channels for the transport of the cooling medium. The heating plate is located on the side of the cooling unit away from the hydrogen storage material unit.

2. The modular solid-state hydrogen storage system according to claim 1, characterized in that, The heat exchange unit also includes a heat collection unit, which supplies heat to the hydrogen storage material unit through a heating plate. The heat collection unit is located on the side of the heating plate away from the cooling unit.

3. The modular solid-state hydrogen storage system according to claim 2, characterized in that, A first temperature sensor is installed on the heating plate. The first temperature sensor is used to detect a first temperature of the heating plate and send the first temperature to the controller. The controller is configured to control the cooling unit to turn on the cooling medium when the first temperature equals the first temperature threshold, so as to reduce the temperature of the heating plate.

4. The modular solid-state hydrogen storage system according to claim 2, characterized in that, A first temperature sensor is installed on the heating plate. The first temperature sensor is used to detect a first temperature of the heating plate and send the first temperature to the controller. The controller is configured to control the heat collection unit to stop supplying heat to the hydrogen storage material unit when the first temperature equals the second temperature threshold.

5. The modular solid-state hydrogen storage system according to claim 4, characterized in that, The hydrogen storage material subunit includes a hydrogen storage material subchamber and a capsule. The capsule is located in the hydrogen storage material subchamber. A protruding structure is provided at the bottom of the hydrogen storage material subchamber. A vent hole is provided on the protruding structure. The protruding structure is connected to the capsule so that the hydrogen gas released by the hydrogen storage material in the capsule can be transmitted to the hydrogen storage chamber through the vent hole.

6. The modular solid-state hydrogen storage system according to any one of claims 1-4, characterized in that, The modular solid-state hydrogen storage system includes multiple hydrogen storage material units, which are arranged in series and / or in parallel.

7. The modular solid-state hydrogen storage system according to claim 6, characterized in that, The multiple hydrogen storage material sub-units are arranged in an array.

8. The modular solid-state hydrogen storage system according to any one of claims 2-4, characterized in that, Also includes: A cover plate is located on the side of the hydrogen storage chamber away from the hydrogen storage material unit, and on the side of the heat collection unit away from the hydrogen storage material unit.

9. An application of the modular solid-state hydrogen storage system as described in any one of claims 1-8, characterized in that... include: Application of the modular solid-state hydrogen storage system in vehicle-mounted energy storage.

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