Modular solid hydrogen storage system and application thereof

Abstract

The invention belongs to the field of solid hydrogen storage. The invention provides a modular solid hydrogen storage system and application thereof. The modularized solid hydrogen storage system comprises a heat exchange unit, the heat exchange unit is located on the surface of one side of the hydrogen storage material unit, the hydrogen storage material unit comprises a plurality of hydrogen storage material subunits, the hydrogen storage material subunits are used for storing hydrogen storage materials, and the heat exchange unit is used for providing heat energy for the hydrogen storage material unit; and the hydrogen storage chamber is located on the side, away from the heat exchange unit, of the hydrogen storage material unit, and the hydrogen storage chamber is used for storing hydrogen released by the hydrogen storage material. According to the modularized solid hydrogen storage system, the multiple hydrogen storage material subunits can be freely combined to form the hydrogen storage modules, and the multiple hydrogen storage modules are connected in series and in parallel to improve the hydrogen storage capacity and adapt to different space requirements; the hydrogen storage material subunit can also realize efficient hydrogen absorption and desorption.

Description

Technical Field

[0001] The present 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 Art

[0002] Hydrogen energy is a clean energy with good prospects. At present, the research on hydrogen energy is mainly divided into three aspects: hydrogen production, hydrogen storage and hydrogen application. Among them, hydrogen storage is generally divided into gaseous hydrogen storage, liquid hydrogen storage, solid hydrogen storage, etc., while gaseous hydrogen storage requires large cylinder volume and low hydrogen storage density, while liquid hydrogen storage requires low temperature maintenance and low energy conversion rate. With the deepening of relevant research, solid-state hydrogen storage technology has received increasing attention, especially with the emergence of more low-cost solid-state hydrogen storage materials, making solid-state hydrogen storage practical possible.

[0003] However, the current modular solid-state hydrogen storage system is in a high-pressure state during the release of hydrogen, which makes it difficult to control the pressure of the modular solid-state hydrogen storage system, making the hydrogen storage rate uncontrollable and correspondingly difficult; the hydrogen storage materials in the modular solid-state hydrogen storage system will also be heated unevenly, resulting in some hydrogen storage materials not being fully utilized, causing energy waste; 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] The embodiments of the present application provide a modular solid-state hydrogen storage system and its application to solve or alleviate one or more technical problems raised above.

[0006] In a first aspect of an embodiment of the present application, a modular solid-state hydrogen storage system is provided. The modular solid-state hydrogen storage system includes a heat exchange unit; a hydrogen storage material unit, the heat exchange unit is located on one side of the hydrogen storage material unit, the hydrogen storage material unit includes a plurality of hydrogen storage material sub-units, the hydrogen storage material sub-units are used to store hydrogen storage materials, the heat exchange unit is used to exchange heat with the hydrogen storage material unit; a hydrogen storage chamber, the hydrogen storage chamber is located on one 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.

[0007] The modular solid-state hydrogen storage system of the embodiment of the present application can control the hydrogen release rate during the hydrogen release process; each hydrogen storage material subunit is an independent hydrogen storage unit, and the pressure is controllable during the hydrogen release process, and the problem of excessive pressure in a single chamber during the hydrogen release process will hardly occur; the hydrogen storage material subunits are independently arranged, which is conducive to uniform heating of the hydrogen storage materials therein, thereby improving the utilization rate of the hydrogen storage materials and reducing energy waste; in addition, when replacing the hydrogen storage materials, the hydrogen storage chamber can be removed and only part of the hydrogen storage material subunits therein can be replaced, which makes the replacement of the hydrogen storage materials more convenient and quick, that is, the modular solid-state hydrogen storage system of the present application can achieve rapid energy replenishment. Multiple hydrogen storage material subunits can also be arbitrarily combined to form a hydrogen storage module, and multiple hydrogen storage modules are combined in series and parallel to form an increase in hydrogen storage capacity and adapt to different space requirements; the hydrogen storage material subunits can also achieve efficient hydrogen absorption and release. In short, the modular solid-state hydrogen storage system of the present application increases the reaction area of ​​the hydrogen storage material, which can ensure a more adequate reaction of the hydrogen storage material and improve the efficiency of hydrogen absorption and release.

[0008] According to an embodiment of the present application, the heat exchange unit includes a cooling unit and a heating plate, wherein the cooling unit is located on a 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 a side of the cooling unit away from the hydrogen storage material unit. According to an embodiment of the present application, the heat exchange unit includes a heat collection unit, which supplies the heat to the hydrogen storage material unit through a heat supply plate, and the heat collection unit is located on a side of the heat supply plate away from the cooling unit.

[0009] According to an embodiment of the present application, a first temperature sensor is provided on the heating plate, and 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 to reduce the temperature of the heating plate when it determines that the first temperature is equal to a first temperature threshold.

[0010] According to an embodiment of the present application, a first temperature sensor is provided on the heating plate, and the first temperature sensor is used to detect a first temperature of the heating plate and send the first temperature to a controller, and the controller is used to control the heat collection unit to stop supplying heat to the hydrogen storage material unit when it is determined that the first temperature is equal to a second temperature threshold.

[0011] According to an embodiment of the present 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 is provided on the protruding structure, and the protruding structure is connected to the capsule so that the hydrogen released by the hydrogen storage material in the capsule is transmitted to the hydrogen storage chamber through the vent.

[0012] According to an embodiment of the present application, the modular solid-state hydrogen storage system includes a plurality of the hydrogen storage material units, and the plurality of the hydrogen storage material units are connected in series or in parallel.

[0013] According to an embodiment of the present application, the plurality of sub-hydrogen storage material units are arranged in an array.

[0014] According to an embodiment of the present application, it further includes: a cover plate, which is located on a side of the hydrogen storage chamber away from the hydrogen storage material unit and on a side of the heat collection unit away from the hydrogen storage material unit.

[0015] A second aspect of an embodiment of the present application provides an application of the modular solid-state hydrogen storage system of the first aspect, wherein the application includes an application of the modular solid-state hydrogen storage system in vehicle-mounted energy storage. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the multiple drawings represent the same or similar parts or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings only depict some embodiments disclosed in the present application and should not be regarded as limiting the scope of the present application.

[0017] Figure 1 is a schematic structural diagram of a modular solid-state hydrogen storage system provided in some embodiments of the present application; Figure 2 is a schematic structural diagram of a modular solid-state hydrogen storage system provided in some other embodiments of the present application; Figure 3 is a schematic structural diagram of a hydrogen storage material unit provided in some embodiments of the present application; Figure 4 is a schematic structural diagram of a hydrogen storage material unit provided in some other embodiments of the present application; Figure 5 This is a schematic diagram of the structure of the hydrogen storage material unit provided in some embodiments of the present application. Figure 6 is a schematic diagram of a structure in which a plurality of hydrogen storage material units are arranged in series in some embodiments of the present application; Figure 7 It is a schematic diagram of a structure in which a plurality of hydrogen storage material units are arranged in parallel in some embodiments of the present application; Figure 8 It is a structural schematic diagram of a plurality of hydrogen storage material units provided in some embodiments of the present application in which a plurality of hydrogen storage material units are arranged in series and in parallel; Fig. 9 is a schematic structural diagram of a modular solid-state hydrogen storage system provided by some other embodiments of the present application; Fig.10 This is a schematic diagram of the heat cycle of a modular solid-state hydrogen storage system provided in some embodiments of the present application.

[0018] Description of reference numerals: 1: heat exchange unit; 2: hydrogen storage material unit; 21: hydrogen storage material subunit; 22: protruding structure; 3: hydrogen storage chamber; 31: gas outlet; 4: cooling unit; 41: channel; 5: heat collection unit; 51: pipeline; 6: heating plate; 7: end plate; 8: internal combustion engine. DETAILED DESCRIPTION

[0019] Embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings. In the accompanying drawings, for clarity, the sizes of layers, regions, elements and their relative sizes may be exaggerated. Wherein the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limitations on the present application. It should be noted that, in the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0020] 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 can be directly on, adjacent to, connected to or coupled to other elements or layers, or there can be intervening elements or layers. On the contrary, when an element is referred to as "directly on ...", "directly adjacent to ...", "directly connected to" or "directly coupled to" other elements or layers, there is no intervening element or layer. It should be understood that although the terms first, second, third, etc. can be used to describe various elements, components, regions, layers and / or parts, these elements, components, regions, layers and / or parts should not be limited by these terms. These terms are only used to distinguish one element, component, region, layer or part from another element, component, region, layer or part. Therefore, without departing from the teachings of the present application, the first element, component, region, layer or part discussed below can be represented as the second element, component, region, layer or part. When the second element, component, region, layer or part is discussed, it does not indicate that the present application necessarily has the first element, component, region, layer or part.

[0021] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0022] At present, hydrogen storage materials are concentrated in a hydrogen storage material chamber. In this way, the hydrogen storage materials are stacked together in a single manner. During the dehydrogenation process, there will be problems such as low effective reaction area and uneven heating, which leads to low hydrogen storage and dehydrogenation efficiency. In addition, the shape of the current separate hydrogen storage material chamber is also single (for example, it cannot be made into a special shape), and the applicable scenarios are also single.

[0023] According to the first aspect of the embodiment of the present application, a modular solid-state hydrogen storage system is provided. Figure 1 The 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 a plurality of 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 3, wherein the hydrogen storage chamber is located on a side of the hydrogen storage material unit away from the heat exchange unit, and the hydrogen storage chamber is used to store hydrogen released by the hydrogen storage material.

[0024] The modular solid-state hydrogen storage system of the embodiment of the present application can control the hydrogen release rate during the hydrogen release process; each hydrogen storage material subunit is an independent hydrogen storage unit, and the pressure is controllable during the hydrogen release process, and the problem of excessive pressure in a single chamber during the hydrogen release process is almost non-existent; the hydrogen storage material subunits are independently arranged, which increases the effective reaction area, which is conducive to uniform heating of the hydrogen storage materials therein, thereby improving the utilization rate of the hydrogen storage materials and reducing energy waste; in addition, when replacing the hydrogen storage materials, the hydrogen storage chamber can be removed and only part of the hydrogen storage material subunits therein can be replaced, which makes the replacement of the hydrogen storage materials more convenient and quick, that is, the modular solid-state hydrogen storage system of the present application can achieve rapid energy replenishment. Multiple hydrogen storage material subunits are arbitrarily combined to form a hydrogen storage module, and multiple hydrogen storage modules are combined in series and parallel to form an increase in hydrogen storage capacity and adapt to different space requirements; the hydrogen storage material subunits reduce the heat exchange demand to achieve efficient hydrogen absorption and release. In short, the modular solid-state hydrogen storage system of the present application increases the reaction area of ​​the hydrogen storage material, which can ensure a more adequate reaction of the hydrogen storage material and improve the efficiency of hydrogen absorption and release.

[0025] In some embodiments, the hydrogen storage chamber includes a single chamber or a plurality of sub-hydrogen storage chambers. The hydrogen storage chamber includes a plurality of sub-hydrogen storage chambers, and one sub-hydrogen storage chamber is correspondingly arranged with one hydrogen storage material subunit, so that the sub-hydrogen storage chamber is used to store hydrogen gas.

[0026] Furthermore, the hydrogen storage chamber is provided with a gas outlet 31 .

[0027] In some embodiments, reference Figure 2 The heat exchange unit includes a cooling unit 4. The cooling unit 4 is located on a side of the hydrogen storage material unit 2 away from the hydrogen storage chamber, and the cooling unit 4 is used to cool the hydrogen storage material unit. When the hydrogen discharge is stopped, the cooling unit can be used to cool the hydrogen storage material unit, so that the heat obtained by the hydrogen storage material unit is reduced, thereby reducing the hydrogen discharge speed of the hydrogen storage material unit, or even stopping the hydrogen discharge.

[0028] Optionally, the cooling unit comprises a cooling plate.

[0029] Optionally, the cooling medium includes air and liquid cooling medium.

[0030] Optionally, the liquid cooling medium includes water.

[0031] In a specific embodiment, referring to Figure 2, the cooling plate has channels 41 arranged in an array. The channels are used for the transmission of cooling medium. The evenly arranged cooling medium makes the cooling plate a uniform cooling plate. This can reduce the problems such as thermal control failure caused by uneven heat absorption of each hydrogen storage material subunit in the hydrogen storage chamber due to uneven heat, resulting in uneven reaction rates of each hydrogen storage material subunit. In addition, it can also reduce the reduction in the service life and performance of the modular solid-state hydrogen storage system due to uneven heat distribution.

[0032] In some embodiments, reference Figure 2 The heat exchange unit includes a heat supply plate 6 and a heat collection unit 5, wherein the heat supply plate 6 is located on a side of the cooling unit 4 away from the hydrogen storage material unit 2, and the heat collection unit 5 is located on a side of the heat supply plate 6 away from the cooling unit 4. When supplying heat, the heat collection unit supplies the heat to the hydrogen storage material unit through the heat supply plate.

[0033] In some specific embodiments, reference is made to Figure 2 , heat from the heat collection unit 5 is introduced by using the pipe 51 to transfer heat.

[0034] Furthermore, the pipes on the heat collection unit are evenly arranged, so that the heat can be evenly transferred to the heating plate, so that the heating plate acts as a heat spreader, that is, the heat of the heating plate is evenly distributed. In this way, the heat waste caused by uneven heat distribution and the uneven degree of material reaction in each hydrogen storage material subunit caused by uneven heating can be reduced. Furthermore, the heat spreader solves the problem of thermal management. It can be in direct contact with the hydrogen storage material unit.

[0035] Optionally, the material of the heating plate includes at least one of copper and aluminum.

[0036] As an example, both the heating plate and the cooling plate are heat exchange plates. The cooling plate can regulate the heat transmitted from the heating plate through a cooling medium such as air cooling or a liquid cooling medium. For example, by introducing a cooling medium, the hydrogen storage material subunit can absorb less heat to reduce its hydrogen release rate, thereby achieving controllability of the hydrogen release reaction of the hydrogen storage material.

[0037] In some embodiments, a first temperature sensor is provided on the heating plate, and 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 to reduce the temperature of the heating plate when it determines that the first temperature is equal to a first temperature threshold.

[0038] In some embodiments, a first temperature sensor is provided on the heating plate, and 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.

[0039] In some embodiments, reference Figure 3 , the hydrogen storage material subunits 21 are arranged in an array.

[0040] 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, and the vent hole is used to transport hydrogen to the hydrogen storage chamber.

[0041] In some embodiments, the hydrogen storage material subunit includes a hydrogen storage material subchamber and a capsule, wherein 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 is provided on the protruding structure, and the protruding structure is connected to the capsule so that the hydrogen released from the hydrogen storage material in the capsule is transmitted to the hydrogen storage chamber through the vent.

[0042] In some embodiments, the modular solid-state hydrogen storage system includes a plurality of hydrogen storage material units, and the plurality of hydrogen storage material units are arranged in series and / or in parallel. In this way, the space can be maximized, that is, more hydrogen storage material sub-chambers are arranged in a certain space to place more hydrogen storage materials. In addition, different series and parallel modes can meet different application scenarios.

[0043] 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 polygonal, elliptical or irregular circular or heterogeneous. In this way, the modular solid-state hydrogen storage system can be applied to different scenarios. For example, the hydrogen storage material unit is made into a heterogeneous shape, which can be matched to the actual application scenario. In addition, the design of the hydrogen storage material subunit also enables the design of heterogeneous hydrogen storage material units to be realized, further enabling the modular solid-state hydrogen storage system of the present application to be applied to more scenarios.

[0044] As an example, refer to Figure 4 and Figure 5 The shapes of the hydrogen storage material units 2 are respectively triangle and irregular circle. The hydrogen storage material subunits 21 can be arranged according to the shapes of the hydrogen storage material units.

[0045] In some embodiments, reference Figure 6 , multiple hydrogen storage material units are arranged in series.

[0046] As an example, the series-connected hydrogen storage material unit is used in a hydrogen fuel cell vehicle. When the hydrogen storage system needs to be placed in the trunk, since the trunk is wider and taller, multiple hydrogen storage material units can be arranged in series.

[0047] In some embodiments, reference Figure 7 , multiple hydrogen storage material units are arranged in parallel.

[0048] As an example, the series-connected hydrogen storage material unit is used in a hydrogen fuel cell vehicle. When the hydrogen storage system needs to be placed on the chassis, since the chassis is wider and lower and narrower, multiple hydrogen storage material units can be arranged in parallel.

[0049] In some embodiments, reference Figure 8 The plurality of hydrogen storage material units are arranged in parallel and in series. The hydrogen storage material units in series and in parallel are suitable for devices requiring a larger hydrogen storage system, such as aircraft.

[0050] In some embodiments, the heat collection unit includes automobile exhaust, boiler preheat, or a thermal energy device.

[0051] 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 refers to 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.

[0052] Furthermore, the temperature required for the above-mentioned material to release hydrogen is 25-500°C.

[0053] In some embodiments, reference Fig. 9 , the modular solid-state hydrogen storage system also includes an end plate 7, the end plate 7 is located on the side of the hydrogen storage chamber away from the hydrogen storage material unit, and is located on the side of the heat collection unit away from the hydrogen storage material unit, and the end plate is provided with air guide holes, and the air guide holes transport hydrogen to the external system. In this way, the hydrogen storage chamber serves as a buffer area for hydrogen, and the buffered hydrogen is transported to the external system through the end plate for use. In addition, the modular solid-state hydrogen storage system provided with an end plate is particularly suitable for use in a plurality of hydrogen storage systems stacked in series, and the generated hydrogen can be drawn out from one end plate or from both end plates.

[0054] A second aspect of an embodiment of the present application provides an application of the modular solid-state hydrogen storage system of the first aspect, wherein the application includes an application of the modular solid-state hydrogen storage system in vehicle-mounted energy storage.

[0055] In some embodiments, the on-board energy storage includes a movable machine such as a car that requires energy.

[0056] Optionally, the modular solid-state hydrogen storage system has a hydrogenation process, an initial hydrogen release process and a normal hydrogen release process, and can respond quickly to hydrogen emissions. Aiming at the working environment and technical index requirements of the light rail vehicle, the overall design of the process system is fully considered in its working state to achieve the integration and continuity of the whole system. The entire hydrogen storage and supply system covers the complete hydrogen storage and supply process, can be used exclusively on-board, and is suitable for hydrogen fuel cell vehicles with solid-state hydrogen storage.

[0057] In some embodiments, reference Fig.10 , take the application of modular solid-state hydrogen storage system in automobile energy storage as an example. The exhaust gas of the automobile is transmitted to the heating plate 6 through the heat collection unit 5, and the heating plate 6 then transfers the heat to the hydrogen storage material unit 2, so that the hydrogen storage material in the hydrogen storage material unit 2 releases hydrogen, and the released hydrogen is stored in the hydrogen storage chamber 3. The hydrogen in the hydrogen storage chamber 3 can become the energy source of 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 transmitted to the hydrogen storage material through the heating plate 6 to release the energy required for hydrogen; when the hydrogen release stops, the cooling medium in the cooling unit 4 is started to reduce the temperature of the hydrogen storage material unit 2, thereby achieving slow hydrogen release until the hydrogen release stops. In this way, the modular solid-state hydrogen storage system can complete the cycle between the use and production of hydrogen.

[0058] It should be noted that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. The orientation words "inside" and "outside" refer to the inside and outside relative to the outline of each component itself. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Therefore, the exemplary term "above..." can include both "above..." and "below..." orientations. The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used here are interpreted accordingly.

[0059] It should also be noted that the "some embodiments", "other embodiments", "embodiments", etc. mentioned in this application refer to the specific features, structures or characteristics described in conjunction with the embodiment included in at least one embodiment generally described in this application. The same expression appearing 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 conjunction with any embodiment, it is claimed that the realization of such feature, structure or characteristic in conjunction with other embodiments also falls within the scope of this application.

[0060] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0061] It should also be noted that the above are only preferred embodiments of the present application, and the patent protection scope of the present application is not limited thereto. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present 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 comprises a plurality of 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, the hydrogen storage chamber is located at a side of the hydrogen storage material unit away from the heat exchange unit, and the hydrogen storage chamber is used to store hydrogen released by the hydrogen storage material.

2. The modular solid-state hydrogen storage system according to claim 1, characterized in that: The heat exchange unit includes a cooling unit and a heating plate. The cooling unit is located at a 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 heat supply plate is located at a side of the cooling unit away from the hydrogen storage material unit.

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

4. The modular solid-state hydrogen storage system according to claim 3, characterized in that: The heating plate is provided with a first temperature sensor, and 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 start the cooling medium to reduce the temperature of the heating plate when determining that the first temperature is equal to a first temperature threshold.

5. The modular solid-state hydrogen storage system according to claim 3, characterized in that: The heating plate is provided with a first temperature sensor, and 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 is determined that the first temperature is equal to a second temperature threshold.

6. The modular solid-state hydrogen storage system according to claim 5, characterized in that: The hydrogen storage material subunit includes a hydrogen storage material subchamber and a capsule, wherein the capsule is located in the hydrogen storage material subchamber, a protruding structure is arranged at the bottom of the hydrogen storage material subchamber, a vent is arranged on the protruding structure, and the protruding structure is connected to the capsule so that the hydrogen released by the hydrogen storage material in the capsule is transmitted to the hydrogen storage chamber through the vent.

7. The modular solid-state hydrogen storage system according to any one of claims 1 to 5, characterized in that: The modular solid-state hydrogen storage system comprises a plurality of the hydrogen storage material units, and the plurality of the hydrogen storage material units are arranged in series and / or in parallel.

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

9. The modular solid-state hydrogen storage system according to any one of claims 3 to 5, characterized in that: Also includes: A cover plate is located on a side of the hydrogen storage chamber away from the hydrogen storage material unit, and is located on a side of the heat collection unit away from the hydrogen storage material unit.

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

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