Box and energy storage device

Abstract

The present application discloses a box and an energy storage device, wherein the box comprises a box body and an outer protective layer, wherein the outer protective layer covers the outer surface of the box body and comprises a wear-resistant layer, wherein the wear-resistant layer comprises a wear-resistant matrix and a repair structure, wherein the repair structure is arranged on the wear-resistant matrix and comprises a repair material and a repair carrier, wherein the repair carrier has a storage cavity for accommodating the repair material, wherein the wear-resistant layer comprises a first wear-resistant layer and a second wear-resistant layer stacked, wherein the second wear-resistant layer is located on the side of the first wear-resistant layer away from the box body, wherein the first wear-resistant layer comprises a reinforcement structure distributed on the wear-resistant matrix, wherein the second wear-resistant layer comprises a repair structure distributed on the wear-resistant matrix, wherein the second wear-resistant layer is a plurality of layers stacked in sequence, wherein the distribution density of the reinforcement structure in the plurality of second wear-resistant layers increases in the direction adjacent to the box body. According to the box of the present application, the outer protective layer of the box has a self-repairing function, and the protective function of the outer protective layer can be extended.

Description

Technical Field

[0001] The present application relates to the field of surface protection technology, and in particular to a box and an energy storage device. Background Art

[0002] As a structure with the function of containing and protecting, the box is usually used as the shell of various equipment or the outer packaging of equipment. During the box logistics process, when friction occurs between boxes or between boxes and other external objects, the surface of the box will be worn.

[0003] In the related art, in order to solve the problem of surface wear of the box, a protective layer with wear-resistant effect is usually coated on the outer surface of the box to protect the outer surface of the box. However, during the logistics process, friction between boxes or between boxes and other external objects, as well as external impact or collision, can easily cause damage to the protective layer on the surface of the box, affecting the protective function of the protective layer, thereby affecting the service life and performance of the box. Therefore, how to extend the protective function of the protective layer to further extend the service life of the box and improve the performance of the box is a technical problem to be solved. Summary of the invention

[0004] The present application provides a box and an energy storage device, wherein the outer protective layer of the box has a self-repairing function, which can extend the protective function of the outer protective layer, thereby further extending the service life of the box and improving the performance of the box.

[0005] In the first aspect, the present application provides a box body, comprising: a box body; an outer protective layer, covering the outer surface of the box body and comprising a wear-resistant layer, the wear-resistant layer comprising a wear-resistant matrix and a repair structure, the repair structure is arranged on the wear-resistant matrix and comprises a repair material and a repair carrier, the repair carrier has a storage cavity for accommodating the repair material, and the repair carrier is used to release the repair material to the wear-resistant matrix to repair the wear-resistant layer; wherein the wear-resistant layer comprises a first wear-resistant layer and a second wear-resistant layer stacked together, the second wear-resistant layer is located on the side of the first wear-resistant layer away from the box body, the first wear-resistant layer comprises a reinforcement structure distributed on the wear-resistant matrix, the second wear-resistant layer comprises the repair structure distributed on the wear-resistant matrix, the second wear-resistant layer is a plurality of layers stacked in sequence, and in the direction adjacent to the box body, the distribution density of the reinforcement structure in the plurality of layers of the second wear-resistant layer increases.

[0006] In the above technical solution, by arranging an outer protective layer on the outer surface of the box body and the outer protective layer includes a wear-resistant layer, the outer protective layer can protect the outer surface of the box, improve the wear resistance of the outer surface of the box, reduce the wear and scratches on the surface of the box during the logistics process, extend the service life of the box, and improve the performance of the box; and, by arranging a repair structure in the wear-resistant layer, when the wear-resistant layer on the outer surface of the box is damaged by external impact, collision or friction, the repair structure can release a repair material to repair the wear-resistant layer, which can extend the effective protection time and effective protection effect of the wear-resistant layer, thereby further extending the service life of the box and further improving the performance of the box.

[0007] By configuring the wear-resistant layer to include a first wear-resistant layer and a second wear-resistant layer stacked together and the second wear-resistant layer to be located on the side of the first wear-resistant layer away from the box body, and the first wear-resistant layer to include a reinforcing structure distributed on the wear-resistant matrix, and the second wear-resistant layer to include a repair structure distributed on the wear-resistant matrix, the surface layer of the wear-resistant layer can include the repair structure. In this way, when the outer surface of the box is damaged, the repair structure in the second wear-resistant layer located on the surface can release the repair material in time to repair the surface layer of the wear-resistant matrix. By configuring the first wear-resistant layer to include the reinforcing structure, the overall strength of the wear-resistant layer can be made higher, thereby improving the wear resistance and impact resistance of the wear-resistant layer.

[0008] By arranging the second wear-resistant layer including the reinforcement structure as a stacked multilayer, the wear-resistant layer can be further reinforced, and the wear resistance and impact resistance of the wear-resistant layer can be better improved. In the direction adjacent to the box body, the distribution density of the reinforcement structure in the multilayer second wear-resistant layer increases, so that the distribution density of the reinforcement structure in the second wear-resistant layer close to the box body is relatively large, which can improve the bonding strength between the wear-resistant layer and the box body, reduce the risk of the wear-resistant layer falling off, and make the overall strength of the wear-resistant layer higher, and the wear resistance and impact resistance are better.

[0009] In some embodiments, the repair carrier is configured to release the repair material through the release port when the repair carrier is destroyed to form a release port connecting the storage cavity with the external environment.

[0010] In the above technical solution, the carrier is constructed so that when the repair carrier is destroyed, a release port connecting the storage cavity with the external environment is formed, so that the repair material is released through the release port. In this way, when the outer surface of the box is subjected to external forces such as friction, impact or collision, the repair carrier is destroyed by these external forces to form the release port, and the repair material located in the storage cavity of the repair carrier can be released from the release port into the wear-resistant matrix, thereby repairing the wear-resistant material. This method can release the repair material in time to repair the wear-resistant layer when the wear-resistant layer is damaged by external forces such as friction, impact or collision.

[0011] In some embodiments, the repair carrier includes a plurality of sub-repair carriers, the plurality of sub-repair carriers are distributed in the wear-resistant matrix, and the storage cavity is formed in the sub-repair carriers.

[0012] In the above technical solution, by setting the repair carrier as multiple sub-repair matrices distributed in the wear-resistant matrix, the repair structure can be distributed more evenly in the wear-resistant matrix, so that when different positions of the wear-resistant layer are damaged, they can be automatically repaired by releasing the repair material.

[0013] In some embodiments, at least part of the sub-repair carriers are in a fibrous or granular form.

[0014] In the above technical scheme, by making at least part of the sub-repair carrier into a fibrous or granular form, the structure of the sub-repair carrier can be simple and easy to process and manufacture, and it is relatively easy to distribute the fibrous or granular repair carrier in the wear-resistant matrix in terms of process. The fibrous or granular sub-repair carrier can also enhance the structural strength and wear resistance of the wear-resistant layer.

[0015] In some embodiments, at least part of the sub-repair carriers are in a fibrous shape and are interwoven to form a fiber cloth.

[0016] In the above technical scheme, by making at least part of the sub-repair carrier fibrous, the structure of the sub-repair carrier can be simple and easy to process and manufacture, and it is relatively easy to distribute the fibrous sub-repair carrier in the wear-resistant matrix in terms of process, and the fibrous sub-repair carrier can also play a role in enhancing the structural strength and wear resistance of the wear-resistant layer; in addition, by interweaving multiple fibrous sub-repair carriers to form a fiber cloth, the structural strength and wear resistance of the wear-resistant layer can be further improved.

[0017] In some embodiments, at least a portion of the sub-repair carrier is in a fiber shape, and the storage cavity of the fiber-shaped sub-repair carrier extends along the length direction of the sub-repair carrier.

[0018] In the above technical scheme, by making at least part of the sub-repair carrier fibrous, the structure of the sub-repair carrier can be simple and easy to process and manufacture, and it is relatively easy to distribute the fibrous repair carrier in the wear-resistant matrix in terms of process, and the fibrous sub-repair carrier can also play a role in enhancing the structural strength and wear resistance of the wear-resistant layer; and, by making the storage cavity in the fibrous sub-repair carrier extend along the length direction of the sub-repair carrier, the space in the fibrous sub-repair carrier can be fully utilized, so that the space of the storage cavity of the fibrous sub-repair carrier is larger, which can accommodate and store more repair materials, so that when the wear-resistant layer is damaged, the wear-resistant layer can be better repaired.

[0019] In some embodiments, the ratio of the inner diameter of the storage cavity of the fibrous sub-repair carrier to the outer diameter of the fibrous sub-repair carrier is 30% to 70%.

[0020] In the above technical scheme, by making the ratio of the inner diameter of the storage cavity of the fibrous sub-repair carrier to the outer diameter of the fibrous sub-repair carrier be 30%~70%, the volume of the storage cavity in a single sub-repair carrier can be made larger, so that more repair materials can be accommodated and stored, so that when the wear-resistant layer is damaged, the wear-resistant layer can be better repaired; and the wall thickness of the sub-repair carrier has a certain structural strength, so that the repair material can be more stably stored in the sub-repair carrier before the wear-resistant layer is damaged, which can reduce or avoid the premature release of the repair material in the sub-repair carrier when the wear-resistant layer is not damaged due to the small wall thickness of the sub-repair carrier.

[0021] In some embodiments, at least a portion of the sub-repair carrier is in a fibrous shape, and the outer diameter of the fibrous sub-repair carrier is 5 μm to 20 μm.

[0022] In the above technical scheme, by making at least part of the sub-repair carrier fibrous, the structure of the sub-repair carrier can be simple and easy to process and manufacture, and it is relatively easy to distribute the fibrous repair carrier in the wear-resistant matrix in terms of process, and the fibrous sub-repair carrier can also play a role in enhancing the structural strength and wear resistance of the wear-resistant layer; and, by making the outer diameter of the fibrous sub-repair carrier 5μm~20μm, the fibrous sub-repair carrier can be relatively easy to process and form in terms of process, and the fibrous sub-repair carrier has a certain structural strength and the ability to form a storage cavity; in addition, the fibrous sub-repair carrier in this outer diameter size range itself also has a good reinforcement effect on the wear-resistant matrix.

[0023] In some embodiments, at least a portion of the sub-repair carriers are in a fibrous shape, and the fibrous sub-repair carriers are glass fibers or carbon fibers.

[0024] In the above technical scheme, by making at least part of the sub-repair carrier fibrous, the structure of the sub-repair carrier can be simple and easy to process and manufacture, and it is relatively easy to distribute the fibrous repair carrier in the wear-resistant matrix in terms of process, and the fibrous sub-repair carrier can also play a role in enhancing the structural strength and wear resistance of the wear-resistant layer; by setting the fibrous sub-repair carrier to glass fiber or carbon fiber, the overall weight of the wear-resistant layer can be made lighter, and the structural strength of the wear-resistant matrix can be better enhanced.

[0025] In some embodiments, the wear-resistant layer is a spray coating, at least a portion of the sub-repair carrier is in a fibrous shape, and the length of the fibrous sub-repair carrier is 2 mm to 6 mm.

[0026] In the above technical scheme, by setting the wear-resistant layer as a spray layer, it is convenient to cover the wear-resistant layer on the outer surface of the box body by spraying; and, making at least part of the sub-repair carrier fibrous, the structure of the sub-repair carrier is simple and easy to process and manufacture, and it is relatively easy to distribute the fibrous repair carrier in the wear-resistant matrix in terms of process, and the fibrous sub-repair carrier can also enhance the structural strength and wear resistance of the wear-resistant layer; at the same time, the length of the fibrous sub-repair carrier is 2mm~6mm, which can make the length of the fibrous sub-repair carrier longer to have a larger storage cavity, and the length of the fibrous sub-repair carrier can be moderate, which is convenient to cover the wear-resistant layer containing the sub-repair carrier on the outer surface of the box body by a spraying process, and the wear-resistant layer formed by the spraying process can have better spraying quality, avoiding the difficulty of the spraying process or poor spraying quality due to the excessive length of the sub-repair carrier.

[0027] In some embodiments, the wear-resistant layer includes a dispersant, and the dispersant is distributed in the wear-resistant matrix to disperse a plurality of the sub-repair carriers.

[0028] In the above technical solution, by setting a dispersant in the wear-resistant matrix, multiple sub-repair carriers distributed in the wear-resistant matrix can be dispersed more evenly in the wear-resistant matrix, avoiding or reducing the agglomeration of the sub-repair carriers in the wear-resistant matrix and causing uneven distribution of the repair structure in the wear-resistant matrix.

[0029] In some embodiments, the dispersant includes at least one of a polycarboxylate and an acrylic copolymer.

[0030] In the above technical solution, by setting the dispersant to include at least one of polycarboxylate and acrylic copolymer, a better dispersing effect on multiple sub-dispersing carriers can be achieved.

[0031] In some embodiments, the wear-resistant matrix is ​​a polymer matrix.

[0032] In the above technical solution, by setting the wear-resistant matrix as a polymer matrix, the wear-resistant layer can have good wear resistance and be lighter in weight and lower in cost.

[0033] In some embodiments, the repair material includes a polymer monomer, a catalyst, and a curing agent.

[0034] In the above technical solution, the repair material is set to include polymer monomers, catalysts and curing agents, so that before the repair carrier is destroyed to form a release port, the storage cavity in the repair carrier is closed, and the repair material is stored in a closed space. The polymer monomers, catalysts and curing agents in the repair material basically do not react. When the outer surface of the box is subjected to friction, impact or collision to cause damage to the wear-resistant layer, the repair carrier is destroyed and a release port is formed, and the repair material in the repair carrier is released into the wear-resistant matrix through the release port. At this time, the polymer monomers, catalysts and curing agents in the repair material are exposed to the outside air, and the polymer monomers react under the action of the catalyst, the curing agent and the outside air to generate polymers, so that the damaged part of the wear-resistant matrix made of a polymer matrix can be supplemented with polymers to repair the structural damage of the wear-resistant matrix.

[0035] In some embodiments, the polymer monomer comprises an epoxy monomer or a polyurethane monomer.

[0036] In the above technical solution, by including the polymer monomers including epoxy resin monomers or polyurethane monomers, the reaction conditions of the polymer monomers of the repair material are relatively simple. When the wear-resistant layer is damaged, the epoxy resin monomers or polyurethane monomers are easily reacted to generate polymers; and the epoxy resin or polyurethane generated by the polymerization reaction of the epoxy resin monomers or polyurethane monomers has good wear resistance, so that the repaired wear-resistant layer can still have good wear resistance.

[0037] In some embodiments, the repair structure further includes an isolation capsule, wherein the isolation capsule and the polymer monomer are both contained in the storage cavity, the catalyst and the curing agent are contained in the isolation capsule, and the isolation capsule is configured to release the catalyst and the curing agent under set conditions.

[0038] In the above technical solution, by arranging an isolation capsule in the storage cavity and storing the catalyst and curing agent in the repair material in the isolation capsule, the catalyst and curing agent in the repair material can be better isolated from the polymer monomer before the wear-resistant layer is damaged and needs to be repaired, so as to better avoid the reaction of part of the catalyst, curing agent and polymer monomer in the repair material before the wear-resistant layer is damaged and needs to be repaired, thereby affecting the repair effect of the repair material; when the wear-resistant layer is damaged, the isolation capsule can release the catalyst and curing agent, and the released catalyst and curing agent react with the polymer monomer under the action of external air, so as to generate a polymer to supplement and repair the structural damage of the wear-resistant matrix.

[0039] In some embodiments, the capsule shell of the isolation capsule is a photosensitive material and the set condition includes a light condition; or, the capsule shell of the isolation capsule is a thermosensitive material and the set condition includes a temperature condition; or, the capsule shell of the isolation capsule is a moisture-sensitive material and the set condition includes a humidity condition; or, the set condition includes a pressure condition.

[0040] In the above technical scheme, by setting the capsule shell of the isolation capsule to a photosensitive material, when the repair carrier is destroyed to form a release port, the isolation capsule contacts the outside air, and the isolation capsule reacts under the action of light in the outside air, so that the catalyst and curing agent in the isolation capsule are released; or, by setting the capsule shell of the isolation capsule to a heat-sensitive material, when the repair carrier is destroyed to form a release port, the isolation capsule contacts the outside air, and the isolation capsule reacts under the action of heat in the outside air, so that the catalyst and curing agent in the isolation capsule are released; or, by setting the capsule shell of the isolation capsule to a moisture-sensitive material, when the repair carrier is destroyed to form a release port, the isolation capsule contacts the outside air, and the isolation capsule reacts under the action of water vapor in the outside air, so that the catalyst and curing agent in the isolation capsule are released; or, when the set conditions include pressure conditions, when the repair carrier is destroyed to form a release port, the isolation capsule is also simultaneously destroyed by an external force to release the catalyst and curing agent.

[0041] In some embodiments, the diameter of the isolation capsule is 10 μm to 900 μm.

[0042] In the above technical solution, by setting the diameter of the isolation capsule to 10 μm to 900 μm, the isolation capsule can have a certain storage space to store the catalyst and the curing agent, and the isolation capsule can be easily processed and formed and easily placed in the storage cavity of the repair carrier.

[0043] In some embodiments, the wear-resistant matrix is ​​a polyurea matrix.

[0044] In the above technical solution, by setting the wear-resistant substrate as a polyurea substrate, the wear-resistant layer can have good wear resistance and also good weather resistance.

[0045] In some embodiments, the surface of the repair carrier is formed as an organophilic surface.

[0046] In the above technical solution, by forming the surface of the repair carrier into an organophilic surface, when the wear-resistant matrix is ​​not a polymer matrix, the compatibility of the repair structure with the wear-resistant matrix can be improved, so that the repair structure is more stably distributed in the wear-resistant matrix.

[0047] In some embodiments, the reinforcement structure comprises a fiber reinforcement structure.

[0048] In the above technical solution, by configuring the reinforcement structure to include a fiber reinforcement structure, the fiber reinforcement structure can effectively enhance the strength of the wear-resistant layer.

[0049] In some embodiments, the strength of the reinforcing structure in the plurality of second wear-resistant layers increases in a direction adjacent to the box body.

[0050] In the above technical solution, in the direction adjacent to the box body, the strength of the reinforced structure in the multi-layer second wear-resistant layer is increased, so that the strength of the reinforced structure in the second wear-resistant layer close to the box body is relatively large, which can improve the bonding strength between the wear-resistant layer and the box body, reduce the risk of the wear-resistant layer falling off, and make the overall strength of the wear-resistant layer higher, and the wear resistance and impact resistance better.

[0051] In some embodiments, the reinforcement structure comprises a fiber reinforcement structure, and the fiber directions of at least a portion of the fiber reinforcement structure of two adjacent layers of the second wear-resistant layers are different.

[0052] In the above technical solution, by setting the reinforcement structure to include a fiber reinforced structure, the fiber reinforced structure can effectively enhance the strength of the wear-resistant layer; and by making the fiber directions of at least part of the fiber reinforced structures of two adjacent layers of the second wear-resistant layer different, the mechanical properties of the wear-resistant layer in different directions can be improved, thereby making the overall performance of the wear-resistant layer better.

[0053] In some embodiments, the wear-resistant layer has a thickness greater than or equal to 0.35 mm.

[0054] In the above technical solution, by setting the thickness of the wear-resistant layer to be greater than or equal to 0.35 mm, the thickness of the wear-resistant layer can be made thicker, so that the wear-resistant layer can still have a certain thickness after long-term wear, avoiding the wear-resistant layer being worn out in a short time due to its thin thickness, so that the wear-resistant layer can play a protective role on the outer surface of the box for a long time.

[0055] In some embodiments, the outer surface of the box body includes multiple side surfaces, and corners are formed between adjacent side surfaces. The wear-resistant layer includes a first wear-resistant portion and a second wear-resistant portion, the thickness of the second wear-resistant portion is greater than the thickness of the first wear-resistant portion, the side surfaces are covered with the first wear-resistant portion, and at least part of the corners are covered with the second wear-resistant portion.

[0056] In the above technical solution, the corners on the outer surface of the box body are prone to wear. By making the thickness of the wear-resistant layer covering the corners on the outer surface of the box body thicker than the thickness of the wear-resistant layer covering the side surfaces on the outer surface of the box body, the wear-resistant layer on the corners on the outer surface of the box body can be less likely to be completely worn out, thereby providing better protection for the corners on the outer surface of the box body.

[0057] In some embodiments, the thickness of the first wear-resistant portion is greater than or equal to 0.5 mm; and / or the thickness of the second wear-resistant portion is greater than or equal to 2 mm.

[0058] In the above technical solution, by setting the thickness of the first wear-resistant part to be greater than or equal to 0.5 mm, the first wear-resistant part can provide better protection for the side of the box body; and / or, by setting the thickness of the second wear-resistant part to be greater than or equal to 2 mm, the second wear-resistant part can provide better protection for protruding structures such as corners of the box body.

[0059] In some embodiments, the outer protective layer includes an outer anti-corrosion layer, and the outer anti-corrosion layer is arranged between the outer surface of the box body and the wear-resistant layer.

[0060] In the above technical solution, by including an outer anti-corrosion layer in the outer protective layer and arranging the anti-corrosion layer between the outer surface of the box body and the wear-resistant layer, the outer protective layer can have both good wear resistance and good corrosion resistance, thereby better protecting the outer surface of the box body.

[0061] In some embodiments, the outer anti-corrosion layer is an epoxy zinc-rich paint layer.

[0062] In the above technical solution, by making the outer anti-corrosion layer into an epoxy zinc-rich paint layer, the outer anti-corrosion layer can have good corrosion resistance.

[0063] In some embodiments, the thickness of the outer anti-corrosion layer is 30 μm to 50 μm.

[0064] In the above technical solution, by setting the thickness of the outer anti-corrosion layer to 30 μm to 50 μm, the outer anti-corrosion layer can have a better anti-corrosion effect and the cost of the outer anti-corrosion layer can be lower.

[0065] In some embodiments, an inner protective layer is provided on the inner surface of the box body.

[0066] In the above technical solution, by providing an inner protective layer on the inner surface of the box body, the inner surface of the box body can be protected.

[0067] In some embodiments, the inner protective layer comprises an inner anti-corrosion layer.

[0068] In the above technical solution, by making the inner protective layer include an inner anti-corrosion layer, it can play an anti-corrosion role on the inner surface of the box body, thereby reducing the risk of corrosion of the inner surface of the box.

[0069] In some embodiments, the inner protective layer has a thickness of 50 μm to 70 μm.

[0070] In the above technical solution, by setting the thickness of the inner protective layer to 50 μm to 70 μm, the inner protective layer can play a better protective role with lower cost.

[0071] In a second aspect, the present application provides an energy storage device, comprising: a box according to the above-mentioned first aspect of the present application; and a battery device, disposed in the box.

[0072] In the above technical solution, by setting the above-mentioned box body, the outer protective layer of the box body has a self-repairing function, which can extend the protective function of the outer protective layer, thereby further extending the service life of the box body and improving the performance of the box body, so that the box body can better protect components such as the battery device arranged inside the box body.

[0073] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0074] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0075] Figure 1 is a schematic diagram of an energy storage device according to some embodiments of the present application;

[0076] Figure 2 is a schematic cross-sectional view of a box at a side according to some embodiments of the present application;

[0077] Figure 3 is a schematic cross-sectional view of a box at a corner according to some embodiments of the present application;

[0078] Figure 4 is a cross-sectional schematic diagram of a box according to other embodiments of the present application;

[0079] Figure 5 A partial cross-sectional schematic diagram of a repair structure of a box according to some embodiments of the present application;

[0080] Figure 6 Partial cross-sectional schematic diagram of the repair structure of the box according to other embodiments of the present application.

[0081] Reference numerals:

[0082] 200. Energy storage device;

[0083] 100, box body;

[0084] 10. Box body; 11. Side; 12. Edges and corners;

[0085] 20. External protective layer; 21. External anti-corrosion layer;

[0086] 30. Wear-resistant layer; 31. Wear-resistant matrix; 32. Repair structure; 321. Repair carrier; 322. Sub-repair carrier; 323. Storage cavity; 324. Repair material; 325. Isolation capsule; 326. Capsule shell;

[0087] 301, first wear-resistant layer; 302, second wear-resistant layer; 303, first wear-resistant portion; 304, second wear-resistant portion;

[0088] 40. Inner protective layer; 41. Inner anti-corrosion layer. DETAILED DESCRIPTION

[0089] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0090] Unless otherwise defined, all technical and scientific terms used in this application have the same meanings as those commonly understood by technicians in the technical field of this application; the terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned drawings and any variations thereof are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order or a primary and secondary relationship.

[0091] Reference to "embodiment" in this application means that a particular feature, structure, or characteristic described in conjunction with the embodiment may be included in at least one embodiment of the present application. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments.

[0092] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "attached" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0093] The term "and / or" in this application is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this application generally indicates that the associated objects before and after are in an "or" relationship.

[0094] In the embodiments of the present application, the same reference numerals represent the same components, and for the sake of brevity, detailed descriptions of the same components are omitted in different embodiments. It should be understood that the thickness, length, width and other dimensions of various components in the embodiments of the present application shown in the drawings, as well as the overall thickness, length, width and other dimensions of the integrated device are only exemplary descriptions and should not constitute any limitation to the present application.

[0095] The term “plurality” used in this application refers to two or more (including two).

[0096] The embodiment of the present application provides an energy storage device, including one or more battery clusters (Battery Cluster) to increase the voltage and capacity of the energy storage device. The battery cluster may include multiple battery devices, and the multiple battery devices are connected in series through a busbar component to increase the voltage of the energy storage device. When the energy storage device includes multiple battery clusters, the multiple battery clusters are connected in parallel to increase the capacity of the energy storage device.

[0097] The energy storage device can be used in energy storage power stations, wind power generation systems, solar power generation systems, mobile power systems or temporary power supply systems. The energy storage device can store electrical energy as needed and output electrical energy at an appropriate time. For example, the energy storage device can store electrical energy during low power consumption and provide electrical energy to relevant users or electrical equipment during peak power consumption. The energy storage system provided in the embodiment of the present application can be any power system that requires the use of an energy storage device.

[0098] In some embodiments, the energy storage device is an energy storage container or an energy storage cabinet.

[0099] In some embodiments, the energy storage device may include a cabinet and one or more battery clusters, wherein the battery clusters are housed in the cabinet.

[0100] In some embodiments, the energy storage device may include modules such as a thermal management module, a main control module, a master control module, a power distribution module, and a fire protection module.

[0101] As an example, the thermal management module may include a liquid cooling unit that provides cooling liquid for regulating the temperature of the battery cells to each battery device through a pipeline.

[0102] As an example, the main control module can be used as a battery management unit of a battery cluster to monitor and manage the battery cluster. The main control module can monitor information such as the current, voltage, power or temperature of the battery cluster. For example, the charging and discharging current and voltage of the battery cluster can be controlled. The main control module includes a slave battery management unit SBMU (SBMU), a fusion switch and other modules.

[0103] As an example, the master control module can be used as a battery management unit of an energy storage device to monitor and manage the energy storage device. The master control module can monitor information such as the current, voltage, power, state of charge or temperature of the energy storage device. For example, the charging and discharging current and voltage of the energy storage device can be controlled. As an example, the master control module includes an insulation monitoring module IMM (Insulation Monitoring Module, abbreviated as IMM), a master battery management unit MBMU (Master Battery Management Unit, MBMU), Ethernet ETH (EtherNet, ETH) and a fiber optic conversion module.

[0104] As an example, the fire protection system includes a control panel, detectors, alarm devices, etc., which are used to detect, alarm or extinguish fire in the energy storage system.

[0105] As an example, the power distribution device may be used to distribute power to the power modules of the energy storage device.

[0106] The battery apparatus mentioned in the embodiments of the present application may include one or more battery cell assemblies for providing voltage and capacity. The battery cell assembly may include multiple battery cells, which are connected in series, in parallel or in mixed connection through a busbar component.

[0107] In some embodiments, a battery cell assembly is generally formed by arranging a plurality of battery cells.

[0108] As an example, the battery cell assembly may be a battery module, which is formed by arranging and fixing a plurality of battery cells to form an independent module. As an example, the battery module may be formed by bundling a plurality of battery cells by a cable tie.

[0109] In the present application, battery cells may include lithium-ion secondary batteries, lithium-ion primary batteries, lithium-sulfur batteries, sodium-lithium-ion batteries, sodium-ion batteries or magnesium-ion batteries, etc., and the embodiments of the present application do not limit this. Battery cells may be cylindrical, flat, rectangular or other shapes, etc., and the embodiments of the present application do not limit this. Battery cells are generally divided into three types according to the packaging method: cylindrical battery cells, square battery cells and soft-pack battery cells, and the embodiments of the present application do not limit this.

[0110] In the embodiment of the present application, the battery cell may be a secondary battery. A secondary battery refers to a battery cell that can be continuously used by activating active materials by charging after the battery cell is discharged.

[0111] The battery cell can be a lithium ion battery, a sodium ion battery, a sodium lithium ion battery, a lithium metal battery, a sodium metal battery, a lithium sulfur battery, a magnesium ion battery, a nickel hydrogen battery, a nickel cadmium battery, a lead storage battery, etc., which is not limited in the embodiments of the present application.

[0112] As a structure with the function of containing and protecting, the box is usually used as the shell of various equipment or the outer packaging of equipment. During the box logistics process, when friction occurs between boxes or between boxes and other external objects, the surface of the box will be worn.

[0113] In the related art, in order to solve the problem of surface wear of the box, a protective layer with wear-resistant effect is usually coated on the outer surface of the box to protect the outer surface of the box. However, during the logistics process, friction between boxes or between boxes and other external objects, as well as external impact or collision, can easily cause damage to the protective layer on the surface of the box, affecting the protective function of the protective layer, thereby affecting the service life and performance of the box. Therefore, how to extend the protective function of the protective layer to further extend the service life of the box and improve the performance of the box is a technical problem to be solved.

[0114] Based on this, the applicant proposed a box body, comprising: a box body and an outer protective layer, the outer protective layer covers the outer surface of the box body and the outer protective layer includes a wear-resistant layer, the wear-resistant layer includes a wear-resistant matrix and a repair structure, the repair structure is arranged on the wear-resistant matrix and includes a repair material and a repair carrier, the repair carrier has a storage cavity for accommodating the repair material, and the repair carrier is used to release the repair material to the wear-resistant matrix to repair the wear-resistant layer.

[0115] The structure of the above-mentioned box body is provided with an outer protective layer on the outer surface of the box body, and the outer protective layer includes a wear-resistant layer. The outer protective layer can protect the outer surface of the box body, improve the wear resistance of the outer surface of the box body, reduce the wear and scratches on the surface of the box body during the logistics process, extend the service life of the box body, and improve the performance of the box body; and, by providing a repair structure in the wear-resistant layer, when the wear-resistant layer on the outer surface of the box body is damaged by external impact, collision or friction, the repair structure can release a repair material to repair the wear-resistant layer, which can extend the effective protection time and effective protection effect of the wear-resistant layer, thereby further extending the service life of the box body and further improving the performance of the box body.

[0116] The box body 100 and the energy storage device 200 according to the embodiment of the present application are described below with reference to the drawings.

[0117] Reference Figure 1-Figure 3 In the first aspect, the present application provides a box body 100, comprising: a box body 10 and an outer protective layer 20, the outer protective layer 20 covers the outer surface of the box body 10 and the outer protective layer 20 includes a wear-resistant layer 30, the wear-resistant layer 30 includes a wear-resistant matrix 31 and a repair structure 32, the repair structure 32 is arranged on the wear-resistant matrix 31 and the repair structure 32 includes a repair material 324 and a repair carrier 321, the repair carrier 321 has a storage cavity 323 for accommodating the repair material 324, and the repair carrier 321 is used to release the repair material 324 to the wear-resistant matrix 31 to repair the wear-resistant layer 30.

[0118] The box body 10 may be a metal part, so that the box body 10 has good strength and rigidity.

[0119] The outer protective layer 20 can protect the outer surface of the box body 100 , reduce damage to the outer surface of the box body 10 , and extend the service life of the box body 100 .

[0120] For example, the outer protective layer 20 may be a coating formed on the outer surface of the box body 10 by spraying; or, the outer protective layer 20 may be a casting layer formed on the outer surface of the box body 10 by casting; or, the outer protective layer 20 may be separately manufactured and formed and then fixed to the outer surface of the box body 10.

[0121] The surface of the wear-resistant layer 30 in the outer protective layer 20 constitutes the outer surface of the outer protective layer 20 .

[0122] The wear-resistant layer 30 may include a material with good wear resistance, so that the wear-resistant layer 30 has good wear resistance, and the wear resistance of the wear-resistant layer 30 may be better than the wear resistance of the box body 10. The wear-resistant layer 30 can improve the wear resistance of the outer surface of the box body 100, reduce the wear and scratches on the surface of the box body 100 during the logistics process, and extend the service life of the box body 100.

[0123] Before the outer surface of the box 100 is damaged by external impact, collision or friction, the repair material 324 is stored in the storage cavity 323 in the repair carrier 321, which can effectively protect the repair material 324 and prevent the repair material 324 from failing. The storage cavity 323 in the repair carrier 321 can be a closed cavity, so that the repair material 324 stored in the repair carrier 321 can be better isolated from the external air, and the repair material 324 stored in the repair carrier 321 can be prevented from prematurely contacting with the external air and failing.

[0124] When the outer surface of the box body 100 is damaged by external impact, collision or friction, the repair structure 32 can release the repair material 324, and the released repair material 324 can replenish and repair the damaged part of the wear-resistant matrix 31, so as to repair the wear-resistant layer 30. In this way, the wear-resistant layer 30 on the outer surface of the box body 100 has a self-repair function, which reduces the manual repair operation of the box body 100, and can extend the effective protection time and effective protection effect of the wear-resistant layer 30, thereby further extending the service life of the box body 100 and further improving the performance of the box body 100.

[0125] The corresponding position of the damaged outer surface of the box body 100 will also be damaged by the repair carrier 321 at the corresponding position. Therefore, when the outer surface of the box body 100 is damaged, the repair carrier 321 can release the repair material 324 at the corresponding position to repair the wear-resistant layer 30; and the corresponding position of the undamaged outer surface of the box body 100 will basically not be damaged. At this time, the repair material 324 stored in the repair carrier 321 at this position can still be well preserved in the repair carrier 321. When the outer surface of the box body 100 at this position is damaged, the repair material 324 will be automatically released for repair.

[0126] Among them, the repair material 324 can be the same as or similar to the material used in the wear-resistant matrix 31, so that when the repair material 324 is added to the wear-resistant matrix 31 to repair the wear-resistant layer 30, the repair material 324 can be better compatible with the wear-resistant matrix 31 and can better achieve the repair of the wear-resistant layer 30.

[0127] In the above technical solution, by arranging an outer protective layer 20 on the outer surface of the box body 10 and the outer protective layer 20 includes a wear-resistant layer 30, the outer protective layer 20 can protect the outer surface of the box 100, improve the wear resistance of the outer surface of the box 100, reduce the wear and scratches on the surface of the box 100 during the logistics process, extend the service life of the box 100, and improve the performance of the box 100; and, by arranging a repair structure 32 in the wear-resistant layer 30, when the wear-resistant layer 30 on the outer surface of the box 100 is damaged by external impact, collision or friction, the repair structure 32 can release the repair material 324 to repair the wear-resistant layer 30, which can extend the effective protection time and effective protection effect of the wear-resistant layer 30, thereby further extending the service life of the box 100 and further improving the performance of the box 100.

[0128] In some embodiments, the repair carrier 321 is configured to release the repair material 324 through the release port when the repair carrier 321 is destroyed to form a release port connecting the storage cavity 323 with the external environment.

[0129] When the outer surface of the box body 100 is damaged by external impact, collision or friction, the repair carrier 321 is also damaged by external impact, collision or friction, so that a release port is formed on the repair carrier 321, so that the repair material 324 stored in the storage cavity 323 of the repair carrier 321 can be released through the release port and replenished to the damaged part of the wear-resistant matrix 31.

[0130] For example, a weak structure can be set on the repair carrier 321. When the outer surface of the box body 100 is damaged by external impact, collision or friction, the repair carrier 321 is also subjected to external impact, collision or friction. In this way, it is relatively easy to form a release port at the weak structure position of the repair carrier 321.

[0131] There may be one or more release openings formed on the repair carrier 321 . For example, the release opening formed on the repair carrier 321 may be a tear opening.

[0132] In the above technical solution, the carrier is constructed so that when the repair carrier 321 is destroyed, a release port connecting the storage cavity 323 with the external environment is formed, so that the repair material 324 is released through the release port. In this way, when the outer surface of the box body 100 is subjected to external forces such as friction, impact or collision, the repair carrier 321 is destroyed by these external forces to form a release port, and the repair material 324 located in the storage cavity 323 of the repair carrier 321 can be released from the release port into the wear-resistant matrix 31, so that the wear-resistant material can be repaired. In this way, when the wear-resistant layer 30 is damaged by external forces such as friction, impact or collision, the repair material 324 can be released in time to repair the wear-resistant layer 30.

[0133] In some embodiments, reference Figure 2-Figure 4 The repair carrier 321 includes a plurality of sub-repair carriers 322 . The plurality of sub-repair carriers 322 are distributed in the wear-resistant matrix 31 . A storage cavity 323 is formed in the sub-repair carriers 322 .

[0134] The shapes of the multiple repair carriers 321 can be the same or different; the sizes of the multiple repair carriers 321 can be the same or different. When the multiple repair carriers 321 are distributed in the wear-resistant matrix 31, they can be dispersed and not in contact with each other, or at least some of the sub-repair carriers 322 can have a contact relationship or a direct connection relationship.

[0135] In the above technical solution, by setting the repair carrier 321 as a plurality of sub-repair matrices distributed in the wear-resistant matrix 31, the repair structure 32 can be distributed more evenly in the wear-resistant matrix 31, so that when different positions of the wear-resistant layer 30 are damaged, they can be automatically repaired by releasing the repair material 324.

[0136] In some embodiments, at least a portion of the sub-repair carrier 322 is in a fibrous or granular form.

[0137] At least part of the sub-repair carriers 322 are fibrous or granular, which may include the following situations: for example, part of the sub-repair carriers 322 are fibrous, part of the sub-repair carriers 322 are granular; all of the sub-repair carriers 322 are fibrous; or all of the sub-repair carriers 322 are granular.

[0138] In the above technical solution, by making at least a part of the sub-repair carrier 322 be fibrous or granular, the structure of the sub-repair carrier 322 can be simple and easy to process and manufacture, and it is relatively easy to distribute the fibrous or granular sub-repair carrier 322 in the wear-resistant matrix 31 in terms of process, and the fibrous or granular sub-repair carrier 322 can also play a role in enhancing the structural strength and wear resistance of the wear-resistant layer 30.

[0139] In some embodiments, at least a portion of the sub-repair carriers 322 are in a fiber shape, and at least a portion of the sub-repair carriers 322 in a fiber shape are interwoven to form a fiber cloth shape.

[0140] A small portion of the sub-repair carriers 322 are fibrous, and at least a portion of the fibrous sub-repair carriers 322 are interwoven to form a fiber cloth, including the following situations: for example, a portion of the sub-repair carriers 322 are fibrous, and a portion of the fibrous sub-repair carriers 322 are interwoven to form a fiber cloth; or, a portion of the sub-repair carriers 322 are fibrous, and all the fibrous sub-repair carriers 322 are interwoven to form a fiber cloth; or, all the sub-repair carriers 322 are fibrous, and a portion of the fibrous sub-repair carriers 322 are interwoven to form a fiber cloth; or, all the sub-repair carriers 322 are fibrous, and all the sub-repair carriers 322 are interwoven to form a fiber cloth.

[0141] In the above technical solution, by making at least part of the sub-repair carrier 322 fibrous, the structure of the sub-repair carrier 322 can be simple and easy to process and manufacture, and it is relatively easy to distribute the fibrous sub-repair carrier 322 in the wear-resistant matrix 31 in terms of process, and the fibrous sub-repair carrier 322 can also enhance the structural strength and wear resistance of the wear-resistant layer 30; in addition, by interweaving multiple fibrous sub-repair carriers 322 to form a fiber cloth, the structural strength and wear resistance of the wear-resistant layer 30 can be further improved.

[0142] In some embodiments, at least a portion of the sub-repair carrier 322 is in a fiber shape, and the storage cavity 323 of the fiber-shaped sub-repair carrier 322 extends along the length direction of the sub-repair carrier 322 .

[0143] At least some of the sub-repair carriers 322 are in a fiber shape. For example, some of the sub-repair carriers 322 may be in a fiber shape, or all of the sub-repair carriers 322 may be in a fiber shape.

[0144] The storage cavity 323 of the fibrous sub-repair carrier 322 extends along the length direction of the sub-repair carrier 322 , so that the storage cavity 323 of the fibrous sub-repair carrier 322 can be formed into a long strip shape, thereby having a larger storage and accommodating space.

[0145] In the above technical scheme, by making at least a part of the sub-repair carrier 322 fibrous, the structure of the sub-repair carrier 322 can be simple and easy to process and manufacture, and it is relatively easy to distribute the fibrous sub-repair carrier 322 in the wear-resistant matrix 31 in terms of process, and the fibrous sub-repair carrier 322 can also play a role in enhancing the structural strength and wear resistance of the wear-resistant layer 30; and, by making the storage cavity 323 in the fibrous sub-repair carrier 322 extend along the length direction of the sub-repair carrier 322, the space in the fibrous sub-repair carrier 322 can be fully utilized, so that the space of the storage cavity 323 of the fibrous sub-repair carrier 322 is larger, which can accommodate and store more repair materials 324, so that when the wear-resistant layer 30 is damaged, the wear-resistant layer 30 can be better repaired.

[0146] In some embodiments, reference Figure 5 The ratio of the inner diameter of the storage cavity 323 of the fibrous sub-repair carrier 322 to the outer diameter of the fibrous sub-repair carrier 322 is 30% to 70%.

[0147] The outer diameter of the fiber-shaped sub-repair carrier 322 refers to the dimension along the cross-sectional direction of the sub-repair carrier 322 .

[0148] The inner diameter of the storage cavity 323 of the fiber-shaped sub-repair carrier 322 refers to the dimension along the cross-sectional direction of the sub-repair carrier 322 .

[0149] For example, refer to Figure 5 The inner diameter of the storage cavity 323 of the fibrous sub-repair carrier 322 is D1, the outer diameter of the fibrous sub-repair carrier 322 is D2, and the ratio of D1 to D2 ranges from 30% to 70%. For example, the ratio of D1 to D2 is 30%, 40%, 50%, 60%, 70%, etc.

[0150] In the above technical solution, by making the ratio of the inner diameter of the storage cavity 323 of the fibrous sub-repair carrier 322 to the outer diameter of the fibrous sub-repair carrier 322 be 30%~70%, the volume of the storage cavity 323 in a single sub-repair carrier 322 can be made larger, so that more repair materials 324 can be accommodated and stored, so that when the wear-resistant layer 30 is damaged, the wear-resistant layer 30 can be better repaired; and the wall thickness of the sub-repair carrier 322 has a certain structural strength, so that before the wear-resistant layer 30 is damaged, the repair material 324 can be stored more stably in the sub-repair carrier 322, which can reduce or avoid the premature release of the repair material 324 in the sub-repair carrier 322 when the wear-resistant layer 30 is not damaged due to the small wall thickness of the sub-repair carrier 322.

[0151] In some embodiments, reference Figure 5At least part of the sub-repair carrier 322 is in a fibrous shape, and the outer diameter of the fibrous sub-repair carrier 322 is 5 μm to 20 μm.

[0152] At least some of the sub-repair carriers 322 are in a fiber shape. For example, some of the sub-repair carriers 322 may be in a fiber shape, or all of the sub-repair carriers 322 may be in a fiber shape.

[0153] For example, refer to Figure 5 The outer diameter of the fibrous sub-repair carrier 322 is D2, and the value range of D2 is 5 μm to 20 μm. For example, the outer diameter D2 of the fibrous sub-repair carrier 322 can be 5 μm, 8 μm, 10 μm, 12 μm, 15 μm, 18 μm, 20 μm, etc.

[0154] In the above technical scheme, by making at least a part of the sub-repair carrier 322 fibrous, the structure of the sub-repair carrier 322 can be simple and easy to process and manufacture, and it is relatively easy to distribute the fibrous sub-repair carrier 322 in the wear-resistant matrix 31 in terms of process, and the fibrous sub-repair carrier 322 can also enhance the structural strength and wear resistance of the wear-resistant layer 30; and, by making the outer diameter of the fibrous sub-repair carrier 322 5μm~20μm, the fibrous sub-repair carrier 322 can be relatively easy to process and form in terms of process, and the fibrous sub-repair carrier 322 has a certain structural strength and the ability to form a storage cavity 323; in addition, the fibrous sub-repair carrier 322 in this outer diameter size range itself also has a good reinforcement effect on the wear-resistant matrix 31.

[0155] In some embodiments, at least a portion of the sub-repair carrier 322 is in a fiber shape, and the sub-repair carrier 322 in a fiber shape is glass fiber or carbon fiber.

[0156] At least some of the sub-repair carriers 322 are in a fiber shape. For example, some of the sub-repair carriers 322 may be in a fiber shape, or all of the sub-repair carriers 322 may be in a fiber shape.

[0157] In the above technical solution, by making at least a part of the sub-repair carrier 322 fibrous, the structure of the sub-repair carrier 322 can be simple and easy to process and manufacture, and it is relatively easy to distribute the fibrous sub-repair carrier 322 in the wear-resistant matrix 31 in terms of process, and the fibrous sub-repair carrier 322 can also play a role in enhancing the structural strength and wear resistance of the wear-resistant layer 30; by setting the fibrous sub-repair carrier 322 to glass fiber or carbon fiber, the overall mass of the wear-resistant layer 30 can be made lighter, and the structural strength of the wear-resistant matrix 31 can be better enhanced.

[0158] In some embodiments, the wear-resistant layer 30 is a spray coating, and at least a portion of the sub-repair carrier 322 is in a fibrous shape. The length of the fibrous sub-repair carrier 322 is 2 mm to 6 mm.

[0159] At least some of the sub-repair carriers 322 are in a fiber shape. For example, some of the sub-repair carriers 322 may be in a fiber shape, or all of the sub-repair carriers 322 may be in a fiber shape.

[0160] The length of the fibrous sub-repair carrier 322 is 2 mm to 6 mm. For example, the length of the fibrous sub-repair carrier 322 is 2 mm, 3 mm, 4 mm, 5 mm, 6 mm, etc.

[0161] In the above technical solution, by setting the wear-resistant layer 30 as a spray layer, it is convenient to cover the wear-resistant layer 30 on the outer surface of the box body 10 by spraying; and, making at least part of the sub-repair carrier 322 fibrous, the structure of the sub-repair carrier 322 can be simple, easy to process and manufacture, and it is relatively easy to distribute the fibrous sub-repair carrier 322 in the wear-resistant matrix 31 in terms of process, and the fibrous sub-repair carrier 322 can also play a role in enhancing the structural strength and wear resistance of the wear-resistant layer 30; at the same time, the fibrous sub-repair carrier 322 The length of the fibrous sub-repair carrier 322 is 2 mm to 6 mm, which can make the length of the fibrous sub-repair carrier 322 longer to have a larger storage cavity 323, and can make the length of the fibrous sub-repair carrier 322 moderate, so as to facilitate covering the wear-resistant layer 30 containing the sub-repair carrier 322 on the outer surface of the box body 10 through a spraying process, and can make the wear-resistant layer 30 formed by the spraying process have better spraying quality, avoiding the difficulty of the spraying process or poor spraying quality due to the excessive length of the sub-repair carrier 322.

[0162] In some embodiments, the wear-resistant layer 30 includes a dispersant, which is distributed in the wear-resistant matrix 31 to disperse the plurality of sub-repair carriers 322 .

[0163] For example, when the wear-resistant layer 30 is formed on the outer surface of the box body 10 by spraying, casting, etc., the raw material forming the wear-resistant matrix 31 and the repair carrier 321 storing the repair material 324 can be mixed. By adding a dispersant, a plurality of sub-repair carriers 322 can be more evenly dispersed in the raw material of the wear-resistant matrix 31, so that the plurality of sub-repair carriers 322 and the raw material of the wear-resistant matrix 31 are more evenly mixed. The mixed material is formed on the outer surface of the box body 10 by spraying, casting, etc. In this way, when the wear-resistant layer 30 is formed, the plurality of sub-repair carriers 322 distributed in the wear-resistant matrix 31 can be more evenly dispersed.

[0164] In the above technical solution, by setting a dispersant in the wear-resistant matrix 31, the multiple sub-repair carriers 322 distributed in the wear-resistant matrix 31 can be dispersed more evenly in the wear-resistant matrix 31, avoiding or reducing the agglomeration of the sub-repair carriers 322 in the wear-resistant matrix 31 and causing the repair structure 32 to be unevenly distributed in the wear-resistant matrix 31.

[0165] In some embodiments, the dispersant includes at least one of a polycarboxylate and an acrylic copolymer.

[0166] The dispersant includes at least one of polycarboxylate and acrylic copolymer, which may include the following cases: for example, the dispersant includes polycarboxylate; or, the dispersant includes acrylic copolymer; or, the dispersant includes polycarboxylate and acrylic copolymer.

[0167] In the above technical solution, by setting the dispersant to include at least one of polycarboxylate and acrylic copolymer, a better dispersing effect on multiple sub-dispersing carriers can be achieved.

[0168] In some embodiments, the wear-resistant matrix 31 is a polymer matrix.

[0169] When the wear-resistant matrix 31 is a polymer matrix, the raw materials for forming the wear-resistant matrix 31 may be polymer monomers and other materials required for a polymerization reaction (such as a catalyst, a curing agent, etc.).

[0170] In the above technical solution, by setting the wear-resistant matrix 31 as a polymer matrix, the wear-resistant layer 30 can have good wear resistance and be lighter in weight and lower in cost.

[0171] In some embodiments, the repair material 324 includes a polymer monomer, a catalyst, and a curing agent.

[0172] Among them, the polymer monomers are polymerized to form polymer monomers, the catalyst accelerates the reaction process, and the curing agent can promote the rapid curing of the formed polymer.

[0173] In the above technical solution, the repair material 324 is set to include a polymer monomer, a catalyst and a curing agent, so that before the repair carrier 321 is destroyed to form a release port, the storage cavity 323 in the repair carrier 321 is closed, and the repair material 324 is stored in a closed space. The polymer monomer, catalyst and curing agent in the repair material 324 basically do not react. When the outer surface of the box body 100 is subjected to friction, impact or collision to cause the wear-resistant layer 30 to be damaged, the repair carrier 321 is destroyed and a release port is formed. The repair material 324 in the repair carrier 321 is released into the wear-resistant matrix 31 through the release port. At this time, the polymer monomer, catalyst and curing agent in the repair material 324 are exposed to the external air, and the polymer monomer reacts under the action of the catalyst, the curing agent and the external air to generate a polymer, so that the damaged part of the wear-resistant matrix 31 made of a polymer matrix can be supplemented with polymer to repair the structural damage of the wear-resistant matrix 31.

[0174] In some embodiments, the polymer monomers include epoxy monomers or polyurethane monomers.

[0175] In the above technical solution, by including the polymer monomer in the epoxy resin monomer or the polyurethane monomer, the reaction conditions of the polymer monomer of the repair material 324 are relatively simple. When the wear-resistant layer 30 is damaged, the epoxy resin monomer or the polyurethane monomer is easy to react to generate a polymer; and the epoxy resin or polyurethane generated by the polymerization reaction of the epoxy resin monomer or the polyurethane monomer has good wear resistance, so that the repaired wear-resistant layer 30 can still have good wear resistance.

[0176] In some embodiments, reference Figure 6 The repair structure 32 further includes an isolation capsule 325. The isolation capsule 325 and the polymer monomer are contained in the storage cavity 323. The catalyst and the curing agent are contained in the isolation capsule 325. The isolation capsule 325 is configured to release the catalyst and the curing agent under set conditions.

[0177] The isolation capsule 325 may be made of polymer material.

[0178] In the above technical solution, by arranging an isolation capsule 325 in the storage cavity 323, and storing the catalyst and curing agent in the repair material 324 in the isolation capsule 325, the catalyst and curing agent in the repair material 324 can be better isolated from the polymer monomer before the wear-resistant layer 30 is damaged and needs to be repaired, so as to better avoid the reaction of part of the catalyst, curing agent and polymer monomer in the repair material 324 before the wear-resistant layer 30 is damaged and needs to be repaired, thereby affecting the repair effect of the repair material 324; when the wear-resistant layer 30 is damaged, the isolation capsule 325 can release the catalyst and curing agent, and the released catalyst and curing agent react with the polymer monomer under the action of external air, so as to generate a polymer to supplement and repair the structural damage of the wear-resistant matrix 31.

[0179] In some embodiments, the capsule shell 326 of the isolation capsule 325 is a photosensitive material, and the set condition includes a light condition; or, the capsule shell 326 of the isolation capsule 325 is a thermosensitive material, and the set condition includes a temperature condition; or, the capsule shell 326 of the isolation capsule 325 is a moisture-sensitive material, and the set condition includes a humidity condition; or, the set condition includes a pressure condition.

[0180] In the above technical solution, by setting the capsule shell 326 of the isolation capsule 325 to a photosensitive material, when the repair carrier 321 is destroyed to form a release port, the isolation capsule 325 contacts the outside air, and the isolation capsule 325 reacts under the action of light in the outside air, so that the catalyst and curing agent in the isolation capsule 325 are released; or, by setting the capsule shell 326 of the isolation capsule 325 to a heat-sensitive material, when the repair carrier 321 is destroyed to form a release port, the isolation capsule 325 contacts the outside air, and the isolation capsule 325 reacts under the action of heat from the outside air. The catalyst and curing agent in the isolation capsule 325 are released by the reaction; or, by setting the capsule shell 326 of the isolation capsule 325 to a moisture-sensitive material, when the repair carrier 321 is destroyed to form a release port, the isolation capsule 325 is exposed to the outside air, and the isolation capsule 325 reacts under the action of water vapor in the outside air, thereby releasing the catalyst and curing agent in the isolation capsule 325; or, when the set conditions include pressure conditions, when the repair carrier 321 is destroyed to form a release port, the isolation capsule 325 is also destroyed by the external force to release the catalyst and curing agent.

[0181] In some embodiments, reference Figure 6 The diameter of the isolation capsule 325 is 10 μm to 900 μm.

[0182] For example, refer to Figure 6The diameter of the isolation capsule 325 is D3, and the range of D3 is 10 μm to 900 μm. For example, the diameter D3 of the isolation capsule 325 can be 10 μm, 50 μm, 100 μm, 150 μm, 200 μm, 250 μm, 300 μm, 350 μm, 400 μm, 450 μm, 500 μm, 550 μm, 600 μm, 650 μm, 700 μm, 750 μm, 800 μm, 850 μm, 900 μm, etc.

[0183] In the above technical solution, by setting the diameter of the isolation capsule 325 to 10μm to 900μm, the isolation capsule 325 can have a certain storage space to store the catalyst and the curing agent, and the isolation capsule 325 can be easily processed and formed and easily placed in the storage cavity 323 of the repair carrier 321.

[0184] In some embodiments, the wear-resistant matrix 31 is a polyurea matrix.

[0185] In the above technical solution, by setting the wear-resistant substrate 31 as a polyurea substrate, the wear-resistant layer 30 can have good wear resistance and also good weather resistance.

[0186] In some embodiments, the surface of the repair carrier 321 is formed as an organophilic surface.

[0187] For example, the surface of the repair carrier 321 may be subjected to surface treatment, such as treating the surface of the repair carrier 321 with a silane coupling agent, so that the surface of the repair carrier 321 may be formed into an organophilic surface.

[0188] In the above technical solution, by forming the surface of the repair carrier 321 into an organophilic surface, when the wear-resistant matrix 31 is not a polymer matrix, the compatibility of the repair structure 32 with the wear-resistant matrix 31 can be improved, so that the repair structure 32 is more stably distributed in the wear-resistant matrix 31.

[0189] In some embodiments, reference Figure 4 The wear-resistant layer 30 includes a first wear-resistant layer 301 and a second wear-resistant layer 302 stacked together. The second wear-resistant layer 302 is located on the side of the first wear-resistant layer 301 that is away from the box body 10. The first wear-resistant layer 301 includes a reinforcement structure distributed on the wear-resistant matrix 31, and the second wear-resistant layer 302 includes a repair structure 32 distributed on the wear-resistant matrix 31.

[0190] The surface of the second wear-resistant layer 302 facing away from the first wear-resistant layer 301 constitutes the outer surface of the outer protective layer 20 .

[0191] In the above technical solution, the wear-resistant layer 30 is arranged to include a first wear-resistant layer 301 and a second wear-resistant layer 302 stacked together, and the second wear-resistant layer 302 is located on the side of the first wear-resistant layer 301 away from the box body 10, and the first wear-resistant layer 301 includes a reinforcing structure distributed on the wear-resistant matrix 31, and the second wear-resistant layer 302 includes a repair structure 32 distributed on the wear-resistant matrix 31, so that the surface layer of the wear-resistant layer 30 can contain the repair structure 32, so that when the outer surface of the box 100 is damaged, the repair structure 32 in the second wear-resistant layer 302 located on the surface can release the repair material 324 in time to repair the surface layer of the wear-resistant matrix 31, and by setting the first wear-resistant layer 301 including the reinforcing structure, the overall strength of the wear-resistant layer 30 can be made higher, and the wear resistance and impact resistance of the wear-resistant layer 30 are improved.

[0192] In some embodiments, the reinforcement structure comprises a fiber reinforcement structure.

[0193] In the above technical solution, by configuring the reinforcement structure to include a fiber reinforcement structure, the fiber reinforcement structure can effectively enhance the strength of the wear-resistant layer 30 .

[0194] In some embodiments, the second wear-resistant layer 302 is a plurality of layers stacked sequentially.

[0195] For example, the second wear-resistant layer 302 is two layers stacked in sequence.

[0196] In the above technical solution, by arranging the second wear-resistant layer 302 including the reinforcement structure as a stacked plurality of layers, the wear-resistant layer 30 can be further strengthened, thereby better improving the wear resistance and impact resistance of the wear-resistant layer 30 .

[0197] In some embodiments, the distribution density of the reinforcement structure in the multi-layer second wear-resistant layer 302 increases in a direction adjacent to the box body 10 .

[0198] In the above technical solution, in the direction adjacent to the box body 10, the distribution density of the reinforced structure in the multi-layer second wear-resistant layer 302 increases, so that the distribution density of the reinforced structure in the second wear-resistant layer 302 close to the box body 10 is larger, which can improve the bonding strength between the wear-resistant layer 30 and the box body 10, reduce the risk of the wear-resistant layer 30 falling off, and make the overall strength of the wear-resistant layer 30 higher, and the wear resistance and impact resistance better.

[0199] In some embodiments, the strength of the reinforcement structure in the multi-layer second wear-resistant layer 302 increases in a direction adjacent to the box body 10 .

[0200] In the above technical solution, in the direction adjacent to the box body 10, the strength of the reinforced structure in the multi-layer second wear-resistant layer 302 is increased, so that the strength of the reinforced structure in the second wear-resistant layer 302 close to the box body 10 is relatively large, which can improve the bonding strength between the wear-resistant layer 30 and the box body 10, reduce the risk of the wear-resistant layer 30 falling off, and make the overall strength of the wear-resistant layer 30 higher, and the wear resistance and impact resistance better.

[0201] In some embodiments, the reinforcement structure includes a fiber reinforcement structure, and the fiber directions of at least a portion of the fiber reinforcement structure of two adjacent second wear-resistant layers 302 are different.

[0202] The fiber directions of at least part of the fiber reinforced structures of two adjacent second wear-resistant layers 302 are different, including the following situations: for example, the fiber directions of part of the fiber reinforced structures in two adjacent second wear-resistant layers 302 are different, and the fiber directions of part of the fiber reinforced structures in two adjacent second wear-resistant layers 302 are the same; or, the fiber directions of all the fiber reinforced structures in two adjacent second wear-resistant layers 302 are different,

[0203] The fiber direction refers to the extension direction of the fiber reinforced structure.

[0204] In the above technical solution, by setting the reinforcement structure to include a fiber reinforced structure, the fiber reinforced structure can effectively enhance the strength of the wear-resistant layer 30; and by making the fiber directions of at least part of the fiber reinforced structure of two adjacent layers of the second wear-resistant layer 302 different, the mechanical properties of the wear-resistant layer 30 in different directions can be improved, thereby making the overall performance of the wear-resistant layer 30 better.

[0205] In some embodiments, reference Figure 2-Figure 4 , the thickness of the wear-resistant layer 30 is greater than or equal to 0.35 mm.

[0206] For example, refer to Figure 2-Figure 4 The thickness of the wear-resistant layer 30 is d, and the thickness d of the wear-resistant layer 30 is greater than or equal to 0.35 mm. For example, the thickness d of the wear-resistant layer 30 is 0.35 mm, 0.5 mm, 0.75 mm, 1.0 mm, 1.35 mm, 1.55 mm, 1.85 mm, 2.0 mm, 2.35 mm, 2.55 mm, 2.85 mm, 3.0 mm, 3.35 mm, 3.55 mm, 3.85 mm, 4.0 mm, 4.35 mm, 4.55 mm, 4.85 mm, 5.0 mm, etc.

[0207] In the above technical solution, by setting the thickness of the wear-resistant layer 30 to be greater than or equal to 0.35 mm, the thickness of the wear-resistant layer 30 can be made thicker, so that the wear-resistant layer 30 can still have a certain thickness after long-term wear, thereby avoiding the wear-resistant layer 30 being too thin and being worn out in a short time, so that the wear-resistant layer 30 can play a protective role on the outer surface of the box body 100 for a long time.

[0208] In some embodiments, reference Figure 1 The outer surface of the box body 10 includes multiple side surfaces 11, and corners 12 are formed between adjacent side surfaces 11. The wear-resistant layer 30 includes a first wear-resistant portion 303 and a second wear-resistant portion 304. The thickness of the second wear-resistant portion 304 is greater than the thickness of the first wear-resistant portion 303. The side surface 11 is covered with the first wear-resistant portion 303, and at least part of the corners 12 is covered with the second wear-resistant portion 304.

[0209] For example, refer to Figure 1 The box body 10 is in a rectangular parallelepiped shape and may include six side surfaces 11 .

[0210] At least some of the corners 12 are covered with the second wear-resistant portion 304 , including the following situations: some of the corners 12 are covered with the second wear-resistant portion 304 , and some of the corners 12 are covered with the first wear-resistant portion 303 ; or all of the corners 12 are covered with the second wear-resistant portion 304 .

[0211] In the above technical solution, the corners 12 on the outer surface of the box body 100 are prone to wear. By making the thickness of the wear-resistant layer 30 covering the corners 12 on the outer surface of the box body 100 thicker than the thickness of the wear-resistant layer 30 covering the side surfaces 11 on the outer surface of the box body 100, the wear-resistant layer 30 on the corners 12 on the outer surface of the box body 100 can be less likely to be completely worn out, thereby providing better protection for the corners 12 of the box body 100.

[0212] In some embodiments, reference Figure 2 , the thickness of the first wear-resistant portion 303 is greater than or equal to 0.5 mm.

[0213] For example, refer to Figure 2 The thickness of the first wear-resistant portion 303 is d1, and the thickness d1 of the first wear-resistant portion 303 is greater than or equal to 0.5 mm. For example, the thickness d1 of the first wear-resistant portion 303 is 0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm, 0.9 mm, 1.0 mm, 1.1 mm, 1.2 mm, 1.3 mm, 1.4 mm, 1.5 mm, etc.

[0214] In the above technical solution, by setting the thickness of the first wear-resistant portion 303 to be greater than or equal to 0.5 mm, the first wear-resistant portion 303 can provide a better protective effect on the side surface 11 of the box body 10 .

[0215] In some embodiments, reference Figure 3 , the thickness of the second wear-resistant portion 304 is greater than or equal to 2 mm.

[0216] For example, refer to Figure 3 The thickness of the second wear-resistant portion 304 is d2, and the thickness d2 of the second wear-resistant portion 304 is greater than or equal to 2 mm. For example, the thickness d2 of the second wear-resistant portion 304 is 2 mm, 2.2 mm, 2.4 mm, 2.6 mm, 2.8 mm, 3.0 mm, 3.2 mm, 3.4 mm, 3.6 mm, 3.8 mm, 4.0 mm, etc.

[0217] In the above technical solution, by setting the thickness of the second wear-resistant portion 304 to be greater than or equal to 2 mm, the second wear-resistant portion 304 can better protect the protruding structures such as the corners 12 of the box body 10 .

[0218] In some embodiments, reference Figure 2-Figure 4 The outer protective layer 20 includes an outer anti-corrosion layer 21 , and the outer anti-corrosion layer 21 is arranged between the outer surface of the box body 10 and the wear-resistant layer 30 .

[0219] For example, when the outer protective layer 20 is formed on the outer surface of the box body 10 by a spraying process, the outer anti-corrosion layer 21 may be sprayed on the outer surface of the box body 10 first, and then the wear-resistant layer 30 may be sprayed on the outer anti-corrosion layer 21. Before the outer protective layer 20 is formed on the outer surface of the box body 10, the outer surface of the box body 10 may be sandblasted to remove impurities such as oxides on the outer surface of the box body 10 and improve the adhesion between the outer protective layer 20 and the outer surface of the box body 10.

[0220] In the above technical solution, the outer protective layer 20 includes an outer anti-corrosion layer 21 and the anti-corrosion layer is arranged between the outer surface of the box body 10 and the wear-resistant layer 30. In this way, the outer protective layer 20 can have both good wear resistance and good corrosion resistance, thereby better protecting the outer surface of the box body 10.

[0221] In some embodiments, the outer anti-corrosion layer 21 is an epoxy zinc-rich paint layer.

[0222] In the above technical solution, by making the outer anti-corrosion layer 21 into an epoxy zinc-rich paint layer, the outer anti-corrosion layer 21 can have good corrosion resistance.

[0223] In some embodiments, reference Figure 2The thickness of the outer anti-corrosion layer 21 is 30 μm to 50 μm.

[0224] For example, refer to Figure 2 The thickness of the outer anticorrosion layer 21 is t1, and the thickness t1 of the outer anticorrosion layer 21 ranges from 30 μm to 50 μm. For example, the thickness t1 of the outer anticorrosion layer 21 is 30 μm, 32 μm, 35 μm, 38 μm, 40 μm, 42 μm, 45 μm, 48 μm, 50 μm, etc.

[0225] In the above technical solution, by setting the thickness of the outer anti-corrosion layer 21 to 30 μm to 50 μm, the outer anti-corrosion layer 21 can have a better anti-corrosion effect and the cost of the outer anti-corrosion layer 21 can be lower.

[0226] In some embodiments, reference Figure 2-Figure 4 The inner surface of the box body 10 is provided with an inner protective layer 40 .

[0227] In the above technical solution, by providing an inner protective layer 40 on the inner surface of the box body 10 , the inner surface of the box body 10 can be protected.

[0228] In some embodiments, the inner protective layer 40 includes an inner anti-corrosion layer 41 .

[0229] For example, the inner anti-corrosion layer 41 may be an epoxy zinc-rich paint layer, which may allow the inner anti-corrosion layer 41 to have good corrosion resistance.

[0230] In the above technical solution, by making the inner protective layer 40 include the inner anti-corrosion layer 41 , it can play an anti-corrosion role on the inner surface of the box body 10 , thereby reducing the risk of corrosion of the inner surface of the box 100 .

[0231] In some embodiments, reference Figure 2 The thickness of the inner protective layer 40 is 50 μm to 70 μm.

[0232] For example, refer to Figure 2 The thickness of the inner protective layer 40 is t2, and the range of the thickness t2 of the inner protective layer 40 is 50 μm to 70 μm. For example, the thickness t2 of the inner protective layer 40 is 50 μm, 52 μm, 55 μm, 58 μm, 60 μm, 62 μm, 65 μm, 68 μm, 70 μm, etc.

[0233] In the above technical solution, by setting the thickness of the inner protective layer 40 to 50 μm to 70 μm, the inner protective layer 40 can play a better protective role with lower cost.

[0234] Second, refer to Figure 1The present application provides an energy storage device 200 , comprising: a box body 100 and a battery device according to the first aspect of the present application, wherein the battery device is disposed in the box body 100 .

[0235] In the above technical solution, by setting the above-mentioned box body 100, the outer protective layer 20 of the box body 100 has a self-repairing function, which can extend the protective function of the outer protective layer 20, thereby further extending the service life of the box body 100 and improving the performance of the box body 100, so that the box body 100 can better protect the battery device and other components arranged inside the box body 100.

[0236] Refer to the following Figure 1-Figure 3 The box 100 according to some embodiments of the present application is described.

[0237] 1. Referring to the drawings, in the present embodiment, the box 100 includes a box body 10, an outer protective layer 20 and an inner protective layer 40.

[0238] The box body 10 is in a rectangular shape as a whole, the outer protective layer 20 is arranged on the outer surface of the box body 10, and the inner protective layer 40 is arranged on the inner surface of the box body 10. The outer protective layer 20 includes an outer anti-corrosion layer 21 and a wear-resistant layer 30, the outer anti-corrosion layer 21 is arranged on the outer surface of the box body 10, and the wear-resistant layer 30 is arranged on the side of the outer anti-corrosion layer 21 away from the box body 10. The inner protective layer 40 includes an inner anti-corrosion layer 41, and both the inner anti-corrosion layer 41 and the outer anti-corrosion layer 21 are epoxy zinc-rich paint layers.

[0239] The wear-resistant layer 30 includes a wear-resistant matrix 31 and a repair structure 32. The repair structure 32 is arranged on the wear-resistant matrix 31 and includes a repair material 324 and a repair carrier 321. The repair carrier 321 has a storage cavity 323 for accommodating the repair material 324. The repair carrier 321 includes a plurality of sub-repair carriers 322. The plurality of sub-repair carriers 322 are distributed in the wear-resistant matrix 31. The storage cavity 323 is formed in the sub-repair carrier 322. The sub-repair carrier 322 is fibrous, and the storage cavity 323 extends along the length direction of the sub-repair carrier 322. The wear-resistant matrix 31 is a polymer matrix, and the repair material 324 includes a polymer monomer, a catalyst and a curing agent.

[0240] The wear-resistant layer 30 includes a first wear-resistant portion 303 and a second wear-resistant portion 304 . The thickness of the second wear-resistant portion 304 is greater than that of the first wear-resistant portion 303 . The side 11 of the box body 10 is covered with the first wear-resistant portion 303 , and the corners 12 of the box body 10 are covered with the second wear-resistant portion 304 .

[0241] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0242] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A box, characterized in that: include: Box body; an outer protective layer, covering the outer surface of the box body and comprising a wear-resistant layer, wherein the wear-resistant layer comprises a wear-resistant matrix and a repair structure, wherein the repair structure is arranged on the wear-resistant matrix and comprises a repair material and a repair carrier, wherein the repair carrier has a storage cavity for accommodating the repair material, and the repair carrier is used to release the repair material to the wear-resistant matrix to repair the wear-resistant layer; Wherein, the wear-resistant layer includes a first wear-resistant layer and a second wear-resistant layer stacked together, the second wear-resistant layer is located on the side of the first wear-resistant layer away from the box body, the first wear-resistant layer includes a reinforcement structure distributed on the wear-resistant matrix, the second wear-resistant layer includes the repair structure distributed on the wear-resistant matrix, the second wear-resistant layer is a plurality of layers stacked in sequence, and in the direction adjacent to the box body, the distribution density of the reinforcement structure in the plurality of second wear-resistant layers increases.

2. The box according to claim 1, characterized in that: The repair carrier is configured to release the repair material through the release port when the repair carrier is destroyed to form a release port connecting the storage cavity with the external environment.

3. The box according to claim 1, characterized in that: The repair carrier comprises a plurality of sub-repair carriers, and the plurality of sub-repair carriers are distributed in the wear-resistant matrix. The storage cavity is formed in the sub-repair carriers, and at least part of the sub-repair carriers are in a fibrous or granular form.

4. The box according to claim 3, characterized in that: At least part of the sub-repair carriers are in a fibrous shape and are interwoven to form a fiber cloth shape.

5. The box according to claim 3, characterized in that: At least a portion of the sub-repair carrier is in a fiber shape, and the storage cavity of the fiber-shaped sub-repair carrier extends along the length direction of the sub-repair carrier.

6. The box according to claim 5, characterized in that: The ratio of the inner diameter of the storage cavity of the fibrous sub-repair carrier to the outer diameter of the fibrous sub-repair carrier is 30% to 70%.

7. The box according to claim 3, characterized in that: At least part of the sub-repair carriers are in a fibrous shape, the outer diameter of the fibrous sub-repair carriers is 5 μm to 20 μm and / or the fibrous sub-repair carriers are glass fibers or carbon fibers.

8. The box according to claim 3, characterized in that: The wear-resistant layer is a spray coating, and at least a portion of the sub-repair carrier is in a fibrous shape. The length of the fibrous sub-repair carrier is 2 mm to 6 mm.

9. The box according to claim 3, characterized in that: The wear-resistant layer includes a dispersant, and the dispersant is distributed in the wear-resistant matrix to disperse a plurality of the sub-repair carriers.

10. The box according to claim 9, characterized in that: The dispersant includes at least one of polycarboxylate and acrylic copolymer.

11. The box according to claim 1, characterized in that: The wear-resistant matrix is ​​a polymer matrix, and the repair material includes polymer monomers, a catalyst and a curing agent.

12. The box according to claim 11, characterized in that: The repair structure further includes an isolation capsule, wherein the isolation capsule and the polymer monomer are both contained in the storage cavity, the catalyst and the curing agent are contained in the isolation capsule, and the isolation capsule is configured to release the catalyst and the curing agent under set conditions; The capsule shell of the isolation capsule is made of photosensitive material, and the set conditions include light conditions; or, the capsule shell of the isolation capsule is made of heat-sensitive material, and the set conditions include temperature conditions; or, the capsule shell of the isolation capsule is made of moisture-sensitive material, and the set conditions include humidity conditions; or, the set conditions include pressure conditions.

13. The box according to claim 12, characterized in that: The diameter of the isolation capsule is 10 μm to 900 μm.

14. The box according to claim 11, characterized in that: The wear-resistant matrix is ​​a polyurea matrix; and / or the surface of the repair carrier is formed as an organophilic surface.

15. The box according to claim 1, characterized in that: In a direction adjacent to the box body, the strength of the reinforcing structure in the plurality of second wear-resistant layers increases.

16. The box according to claim 1, characterized in that: The reinforcement structure comprises a fiber reinforcement structure, and the fiber directions of at least a part of the fiber reinforcement structure of two adjacent layers of the second wear-resistant layers are different.

17. The box according to claim 1, characterized in that: The thickness of the wear-resistant layer is greater than or equal to 0.35 mm.

18. The box according to claim 1, characterized in that: The outer surface of the box body includes multiple side surfaces, and corners are formed between adjacent side surfaces. The wear-resistant layer includes a first wear-resistant portion and a second wear-resistant portion, the thickness of the second wear-resistant portion is greater than the thickness of the first wear-resistant portion, the side surfaces are covered with the first wear-resistant portion, and at least part of the corners are covered with the second wear-resistant portion.

19. The box according to claim 18, characterized in that: The thickness of the first wear-resistant portion is greater than or equal to 0.5 mm; and / or the thickness of the second wear-resistant portion is greater than or equal to 2 mm.

20. The box according to claim 1, characterized in that: The outer protective layer comprises an outer anti-corrosion layer, and the outer anti-corrosion layer is arranged between the outer surface of the box body and the wear-resistant layer.

21. The box according to any one of claims 1 to 20, characterized in that: An inner protective layer is provided on the inner surface of the box body.

22. An energy storage device, characterized in that: include: The box according to any one of claims 1 to 21; The battery device is arranged in the box.

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