Battery device, energy storage device, energy storage system and charging network

Abstract

The utility model discloses a battery device, an energy storage device, an energy storage system and a charging network, the battery device comprises a battery monomer, a plastic part, a heat exchange part and a pouring part, and the plastic part is used for supporting the battery monomer; the heat exchange part is embedded in the plastic part and is used for exchanging heat of the battery monomers; the pouring part is arranged on one surface of the plastic part deviating from the battery monomers. Through the combined action of the plastic part, the pouring part, the heat exchange part, the battery monomers and the like, the side surface, facing the battery monomers, of the plastic part does not need to be sprayed with insulating powder, electrophoresis anti-corrosion substances and the like, so that the manufacturing cost of the battery device is reduced.

Description

Technical Field

[0001] The present application relates to the field of battery technology, and in particular to a battery device, an energy storage device, an energy storage system, and a charging network. Background Art

[0002] The housing of existing battery devices is mainly a metal housing, which increases the manufacturing cost of the battery device. Utility Model Content

[0003] In view of the above problems, the present application provides a battery device, an energy storage device, an energy storage system and a charging network to solve the problem that the metal box in the existing battery device increases the manufacturing cost of the battery device.

[0004] To address the above technical issues, this application employs a technical solution: providing a battery device comprising: a battery cell; a plastic component for supporting the battery cell; a heat exchange component embedded in the plastic component and used to exchange heat with the battery cell; and a cast component disposed on the side of the plastic component facing away from the battery cell. The combined effects of the plastic component, cast component, heat exchange component, and battery cell eliminate the need for spraying insulating powder or electrophoretic anti-corrosion materials on the side of the plastic component facing the battery cell, thereby reducing the manufacturing cost of the battery device.

[0005] In some embodiments, the side of the plastic component facing away from the battery cell is a second surface. The second surface is provided with multiple protrusions, which enclose a filling area within which the cast component is placed. The combined effect of the second surface and the multiple protrusions provides a space for the cast component, facilitating the pouring of concrete.

[0006] In some embodiments, the protrusion extends along the edge of the second surface. By limiting the protrusion to the edge of the second surface, the area of ​​the filling region is increased, thereby increasing the area of ​​the casting, thereby increasing the load resistance of the battery device.

[0007] In some embodiments, the battery device further includes a reinforcement member disposed within the casting. The reinforcement member disposed within the casting can improve the strength of the casting, thereby increasing the effective load capacity of the battery device.

[0008] In some embodiments, the reinforcement includes at least one first steel bar and at least one second steel bar, which are arranged crosswise. The at least one first steel bar and at least one second steel bar are arranged together within the cast member, thereby increasing the strength of the cast member and thereby improving the tensile strength and payload capacity of the battery device.

[0009] In some embodiments, the battery device further includes a slide rail, which includes a connecting portion and a supporting portion interconnected with each other. The connecting portion is embedded in the cast part, and the supporting portion is disposed on the surface of the cast part facing away from the plastic part. The combined action of the connecting portion and the supporting portion can enhance the stability of the slide rail when mounted on the cast part.

[0010] In some embodiments, the side of the connecting portion has a limiting portion. By providing the limiting portion on the side of the connecting portion, the stability of the slide rail installed in the casting is further improved, and the risk of the slide rail falling out of the casting is reduced.

[0011] In some embodiments, there are two slide rails, which are symmetrically arranged on the side of the cast part facing away from the plastic part. By limiting the arrangement and number of the slide rails, the stability of the battery device during transportation and dragging can be improved, and dragging friction can also be reduced.

[0012] In some embodiments, the plastic component is provided with a plurality of first fastening holes around its periphery; the battery assembly further includes a plurality of pressure strips connected to the side of the plastic component facing away from the battery cells, and provided with a plurality of second fastening holes. Fasteners are disposed within the first and second fastening holes. The plurality of second fastening holes in the pressure strips and the plurality of first fastening holes in the plastic component act together to provide a pre-fixed position, thereby ensuring the fastener's position and reducing the risk of shaking or skewing. This facilitates both battery assembly production and assembly of the handpiece.

[0013] In some embodiments, multiple beading strips are connected end to end and arranged to form a beading strip frame, which is arranged along the periphery of the plastic part facing away from the battery cell. The beading strip frame is defined by multiple beading strips, which facilitates rapid installation of the beading strip frame on the plastic part.

[0014] In some embodiments, the casting is a silicate mixed layer; or, the casting includes at least a concrete layer. By limiting the material of the casting, the manufacturing cost of the battery device can be reduced and the battery device can have a higher structural strength.

[0015] In some embodiments, the side of the plastic component facing the battery cell is a first surface. A first recessed groove is provided on the first surface, and the heat exchange component is embedded in the first recessed groove. The side of the heat exchange component facing away from the cast component is lower than or flush with the first surface. By limiting the relationship between the side of the heat exchange component facing away from the plastic component and the first surface, the risk of damage to the battery cell can be reduced while ensuring that the battery cell is cooled.

[0016] In some embodiments, the surface of the plastic component facing away from the battery cell is a second surface, which is provided with a first protrusion, and the first recessed groove extends to the first protrusion; the cast component is provided with a second recessed groove, and the first protrusion is embedded in the second recessed groove. Through the interaction of the first protrusion on the second surface and the second recessed groove of the cast component, the interior of the cast component can change with the changes of the plastic component, improving adaptability.

[0017] In some embodiments, the plastic part includes a composite plate or an injection-molded plastic plate. By limiting the types of plastic parts, the diverse usage needs of users can be met.

[0018] In order to solve the above technical problems, another technical solution adopted in this application is: to provide an energy storage device, which includes the battery device described above.

[0019] In order to solve the above technical problems, another technical solution adopted in this application is: to provide an energy storage system, the energy storage system includes a power conversion device and the above-mentioned energy storage device, and the power conversion device is used to electrically connect the power generation device and the energy storage device.

[0020] In order to solve the above technical problems, another technical solution adopted in this application is: providing a charging network, the charging network including charging piles and the energy storage device mentioned above, the energy storage device is used to provide electrical energy for the charging piles.

[0021] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiment below. The accompanying drawings are for illustration purposes only and are not to be considered as limiting the present application. The same reference numerals are used throughout the drawings to represent the same components. In the drawings:

[0023] Figure 1 is a schematic structural diagram of a battery device according to one or more embodiments;

[0024] Figure 2 is an exploded schematic diagram of a battery cell in a battery device according to one or more embodiments;

[0025] Figure 3 is an exploded schematic diagram of a battery device according to one or more embodiments;

[0026] Figure 4is a top view of a battery device according to one or more embodiments;

[0027] Figure 5 yes Figure 4 A schematic cross-sectional view of BB is shown;

[0028] Figure 6 is a first structural schematic diagram of a plastic part in a battery device according to one or more embodiments;

[0029] Figure 7 is a second structural schematic diagram of a plastic component in a battery device according to one or more embodiments;

[0030] Figure 8 yes Figure 7 An enlarged schematic diagram of D is shown;

[0031] Figure 9 is a partial exploded schematic diagram of a battery device according to one or more embodiments;

[0032] Figure 10 yes Figure 9 An enlarged schematic diagram of E is shown;

[0033] Figure 11 yes Figure 5 An enlarged schematic diagram of C is shown;

[0034] Figure 12 is a partial bottom view of a battery device according to one or more embodiments;

[0035] Figure 13 yes Figure 12 The schematic diagram of the structure of FF shown;

[0036] Figure 14 yes Figure 13 An enlarged schematic diagram of G is shown;

[0037] Figure 15 is a schematic structural diagram of a batten frame in a battery device according to one or more embodiments;

[0038] Figure 16 yes Figure 3 An enlarged schematic diagram of A is shown;

[0039] Figure 17 is a schematic diagram of a charging network structure according to one or more embodiments;

[0040] Figure 18 is a schematic structural diagram of an energy storage device according to one or more embodiments;

[0041] Figure 19 is a schematic structural diagram of an energy storage system according to one or more embodiments.

[0042] The reference signs in the detailed description are as follows: 100, battery device; 11, battery cell; 111, connecting member; 112, cover plate; 113, pole; 114, safety valve; 115, electrode assembly; 116, shell; 12, box body; 12a, upper box body; 12b, lower box body; 121, heat exchange member; 122, plastic member; 1221, first surface; 1222, second surface; 1223, convex part; 1224, filling area; 1225, first recessed groove; 1226, first protruding part; 1227, first fastening hole; 123, pouring member; 1231, second recessed groove; 1241, first steel bar; 1242, second steel bar; 125, sliding rail; 1251, connecting part; 1252, supporting part; 1253, limiting part; 126, pressing strip frame; 1261, pressing strip; 12611, second fastening hole; 127, fastening member; 1000, charging network; 2000, energy storage system; 3000, power generation device; 200, energy storage device; 210, energy storage box body; 300, charging pile; 400, energy storage converter. DETAILED DESCRIPTION

[0043] The embodiments of the technical solutions of the present application will be described in detail below. The following embodiments are only used to more clearly illustrate the technical solutions of the present application, and therefore only serve as examples, and cannot limit the protection scope of the present application.

[0044] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the present application; the terms "include" and "have" and any variations thereof in the specification and claims of the present application and the above description of drawings are intended to cover non-exclusive inclusion.

[0045] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, unless otherwise explicitly and specifically limited, the term "a plurality of" refers to two or more (including two), and similarly, "a plurality of groups" refers to two or more groups (including two groups), and "a plurality of pieces" refers to two or more pieces (including two pieces).

[0046] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0047] In the description of the embodiments of this application, the term "and / or" is simply a description of the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent the following three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0048] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0049] In the description of the embodiments of the present application, unless otherwise expressly specified or limited, technical terms such as "installed," "connected," "connected," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; internal connections between two components or interactions between two components. Those skilled in the art can understand the specific meanings of the above terms in the embodiments of the present application based on specific circumstances.

[0050] Currently, market developments indicate that battery devices are becoming increasingly widely used. These devices can be power batteries. Power batteries are the power source used to power tools. These batteries typically refer to the storage batteries used to power vehicles such as electric vehicles, electric trains, electric bicycles, golf carts, and aerospace. Of course, battery devices can also be energy storage batteries, which are used to store energy from renewable energy sources such as hydropower, thermal power, wind power, and solar power plants. As the application areas of battery devices continue to expand, market demand is also growing.

[0051] The casing of existing battery devices is mainly a metal casing. When the battery cell contacts the metal casing, the metal casing needs to be treated with anti-corrosion and insulation, thereby increasing the manufacturing cost. In order to solve the problem that the metal casing increases the manufacturing cost of the battery device. The present application provides a battery device. The battery device includes a battery cell, a plastic part, a heat exchange part and a casting part. The plastic part is used to support the battery cell; the heat exchange part is embedded in the plastic part and is used to exchange heat for the battery cell; the casting part is arranged on the side of the plastic part away from the battery cell. Through the joint action of the above-mentioned plastic parts, casting parts, heat exchange parts and battery cells, the side of the plastic part facing the battery cell does not need to be sprayed with insulating powder and electrophoretic anti-corrosion materials, thereby reducing the manufacturing cost of the battery device.

[0052] See also Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 as well as Figure 5 , Figure 1 is a schematic structural diagram of a battery device according to one or more embodiments; Figure 2 is an exploded schematic diagram of a battery cell in a battery device according to one or more embodiments; Figure 3 is an exploded schematic diagram of a battery device according to one or more embodiments; Figure 4 is a top view of a battery device according to one or more embodiments; Figure 5 yes Figure 4 A schematic cross-sectional view of section BB is shown. In some embodiments, battery device 100 includes a battery cell 11, a plastic component 122, a heat exchange component 121, and a cast component 123. Plastic component 122 is used to support battery cell 11. Heat exchange component 121 is embedded in plastic component 122 and is used to exchange heat with battery cell 11. Cast component 123 is disposed on the side of plastic component 122 facing away from battery cell 11.

[0053] The battery device 100 may include a battery cell 11 and a housing 12. The housing 12 includes an upper housing 12a and a lower housing 12b. The upper housing 12a covers the lower housing 12b to accommodate the battery cell 11. The battery cell 11 may be a secondary battery. A secondary battery refers to a battery cell 11 that can be recharged to activate the active material after the battery cell 11 is discharged and can continue to be used. The battery cell 11 may include, but is not limited to, 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-metal hydride battery, a nickel-cadmium battery, and a lead-acid battery.

[0054] The battery cell 11 may include a housing 116, an electrode assembly 115, and a cover plate 112. The housing 116 has a connected cavity and a mounting opening. There may be one or more electrode assemblies 115, which are mounted within the cavity of the housing 116. The cover plate 112 is connected to the housing 116 and covers the mounting opening. The housing 116 is filled with an electrolyte, such as an electrolyte solution.

[0055] The electrode assembly 115 may include an anode electrode sheet and a cathode electrode sheet, as well as a separator disposed between the anode electrode sheet and the cathode electrode sheet. During the charge and discharge process of the battery cell 11, active ions (such as lithium ions) are inserted and removed back and forth between the anode electrode sheet and the cathode electrode sheet. The separator can, to a certain extent, prevent the anode electrode sheet and the cathode electrode sheet from short-circuiting, while allowing active ions to pass through. The battery cell 11 may also include a safety valve 114 (also known as a pressure relief valve), two poles 113, and two connecting members 111 (also known as current collecting members). The safety valve 114 may be disposed on the cover plate 112. For example, the safety valve 114 is fixed to the cover plate 112. The safety valve 114 is used to actuate when the internal pressure or temperature of the battery cell 11 reaches a threshold value to release the internal electrolyte, thereby reducing the internal pressure or temperature of the battery cell 11. For example, the safety valve 114 may be a temperature-sensitive valve, a pressure-sensitive valve, etc. Two electrodes 113 can be provided on the cover plate 112. The two electrodes 113 are respectively a positive electrode and a negative electrode. Each electrode 113 is connected to a corresponding connecting member 111. Connecting member 111 is located between the cover plate 112 and the electrode assembly 115 and is used to electrically connect the electrode assembly 115 and the electrode 113. The housing 116 is a hollow structure and can be made of metal or plastic; for example, the housing 116 can be made of copper, iron, aluminum, steel, aluminum alloy, etc.

[0056] The plastic part 122 may be, but is not limited to, a composite plate (not shown) and an injection-molded plastic plate (not shown). Composite plates may include, but are not limited to, plastic-based composite composite plates, plastic plates, and metal plastic plates. Plastic-based composite composite plates may be made of plastic-based composite materials. Plastic-based composite materials include continuous fiber-reinforced thermoplastic composite materials. Injection-molded plastic plates include, but are not limited to, injection-molded polypropylene plates (not shown) and injection-molded acrylonitrile-butadiene-styrene copolymer plates (not shown). Metal plastic plates have certain plastic properties. Metal plastic plates may be, but are not limited to, aluminum alloy plastic plates and copper alloy plastic plates.

[0057] The plastic part 122 has insulation performance. The plastic part 122 is used to support the plurality of battery monomers 11. Due to the insulation performance of the plastic part 122, when the plastic part 122 supports the plurality of battery monomers 11 towards one side of the battery monomer 11, the one side of the plastic part 122 towards the battery monomer 11 does not need to be sprayed with insulating powder and electrophoretic anticorrosive substances, etc., thereby reducing the manufacturing cost of the battery device 100.

[0058] The heat exchange part 121 is embedded in the plastic part 122. The shape of the heat exchange part 121 can be, but is not limited to, a snake shape distribution and a ring shape distribution, etc. In this embodiment, the shape of the heat exchange part 121 is a snake shape distribution. When the battery monomer 11 is placed on the plastic part 122, the heat exchange part 121 is used to exchange heat with the battery monomer 11. The heat exchange part 121 circulates the cooling substance inside. The heat exchange part 121 exchanges heat with the battery monomer 11 through the cooling substance, and is used to cool the battery monomer 11. Because the thermal conductivity of the plastic part 122 is lower than that of the metal box, during the operation of the battery monomer 11, the energy loss can be reduced, thereby reducing the operation cost.

[0059] The pouring part 123 is arranged on the side of the plastic part 122 away from the battery monomer 11. That is, the pouring part 123 can be stacked on the side of the plastic part 122 away from the battery monomer 11. The pouring part 123 can enhance the strength of the plastic part 122, thereby improving the load capacity of the battery device 100, etc. The pouring part 123 is formed by solidification of the pouring layer. During the solidification of the pouring layer, it can be formed by a mold or a convex part 1223. The size of the pouring part 123 can be greater than the size of the side of the plastic part 122 away from the battery monomer 11; or the size of the pouring part 123 can be less than or equal to the size of the side of the plastic part 122 away from the battery monomer 11, etc., which is not limited here.

[0060] Through the above-mentioned cooperation of the plastic part 122, the pouring part 123, the heat exchange part 121 and the battery monomer 11, etc., the side of the plastic part 122 towards the battery monomer 11 does not need to be sprayed with insulating powder and electrophoretic anticorrosive substances, etc., thereby reducing the manufacturing cost of the battery device 100.

[0061] Further, by arranging the pouring part 123 on the side of the plastic part 122 away from the battery monomer 11, the strength of the plastic part 122 can be improved, thereby improving the load capacity of the battery device 100, etc. Further, the thermal conductivity of the plastic part 122 is low, which can reduce energy loss, thereby reducing operation cost, etc.

[0062] Please refer to Figure 6 , Figure 7 and Figure 8 , Figure 6 is a first structure diagram of a plastic part in a battery device according to one or more embodiments; Figure 7is a second structural schematic diagram of a plastic component in a battery device according to one or more embodiments; Figure 8 yes Figure 7 An enlarged schematic diagram of D. Figures 1 to 5 In some embodiments, the surface of the plastic member 122 facing away from the battery cell 11 is a second surface 1222 . The second surface 1222 is provided with a plurality of protrusions 1223 . The plurality of protrusions 1223 surround a filling area 1224 . The casting member 123 is disposed in the filling area 1224 .

[0063] The side of the plastic member 122 facing the battery cell 11 is a first surface 1221 . The side of the plastic member 122 facing away from the battery cell 11 is a second surface 1222 . The first surface 1221 and the second surface 1222 are disposed opposite to each other. The first surface 1221 supports multiple battery cells 11 .

[0064] The number of the protrusions 1223 may include one, two, three, or four or more. The multiple protrusions 1223 may be detachably or fixedly connected to the second surface 1222. As in this embodiment, the multiple protrusions 1223 are integrally formed on the second surface 1222.

[0065] Multiple protrusions 1223 are arranged to form a filling area 1224. Filling area 1224 may have a filling port (not shown). Concrete is poured into filling area 1224 through the filling port, forming cast part 123. Protrusions 1223 may be arranged in a circular or segmented manner. The number of protrusions 1223 may determine the size of filling area 1224, which is not limited here.

[0066] The second surface 1222 and the plurality of protrusions 1223 work together to provide a pouring space for the pouring member 123 , thereby improving the convenience of concrete pouring.

[0067] Furthermore, when concrete is poured into the filling area 1224 , at least a portion of the concrete can solidify on the side wall of the protrusion 1223 , thereby improving the firmness of the connection between the pouring member 123 and the plastic member 122 , and also improving the strength of the plastic member 122 .

[0068] In some embodiments, the protrusion 1223 extends along the edge of the second surface 1222 .

[0069] The plurality of protrusions 1223 may be located at any position on the second surface 1222 , for example, the protrusions 1223 may be located in the middle or at the periphery of the second surface 1222 .

[0070] Specifically, the second surface 1222 can have multiple edges. The protrusions 1223 are disposed on corresponding edges, wherein the protrusions 1223 extend along the edges of the second surface 1222. The number of protrusions 1223 can be the same as or different from the number of edges. For example, in this embodiment, when the second surface 1222 is arranged in a square shape, the second surface 1222 has four edges. Each edge can be provided with a corresponding protrusion 1223. The filling area 1224 is arranged in a square shape.

[0071] In other embodiments, each edge may be provided with two or more protrusions 1223. At least one of the two or more protrusions 1223 may extend along the edge, while the other protrusions 1223 may be provided on the edge near the center of the second surface 1222. Multiple protrusions 1223 may be arranged from the center of the second surface 1222 toward the periphery, and the multiple protrusions 1223 may be arranged to form filling areas 1224 of varying sizes.

[0072] By limiting the convex portion 1223 at the edge of the second surface 1222 , the area of ​​the filling region 1224 is increased, thereby increasing the area of ​​the casting 123 , thereby increasing the load resistance of the battery device 100 .

[0073] See also Figure 9 , Figure 9 FIG1 is a partial exploded view of a battery device according to one or more embodiments. Figures 1 to 8 In some embodiments, the battery device 100 further includes a reinforcement member (not shown in the figure). The reinforcement member is disposed within the casting 123 .

[0074] The reinforcements are placed within the concrete and secured as the concrete solidifies. These reinforcements can be, but are not limited to, columns and plates, as long as they enhance the internal strength of cast part 123. The number of reinforcements can be, but is not limited to, one, two, or three or more. The direction and location of the reinforcements within cast part 123 are not limited.

[0075] By providing a reinforcement member in the casting 123 , the strength of the casting 123 can be improved, thereby improving the effective load capacity of the battery device 100 .

[0076] In some embodiments, the reinforcement member includes at least one first steel bar 1241 and at least one second steel bar 1242. The at least one first steel bar 1241 and the at least one second steel bar 1242 are arranged crosswise.

[0077] The number of first steel bars 1241 can be, but is not limited to, one, two, or three or more. The number of second steel bars 1242 can be, but is not limited to, one, two, or three or more. The number of first steel bars 1241 and the number of second steel bars 1242 can be the same or different. At least one first steel bar 1241 and at least one second steel bar 1242 are arranged crosswise.

[0078] For example, when the number of first steel bars 1241 and the number of second steel bars 1242 are both two or more, the two or more first steel bars 1241 extend along the first direction X and are arranged in a matrix along the second direction Y; the two or more second steel bars 1242 extend along the second direction Y and are arranged in a matrix along the first direction X. The first direction X and the second direction Y are different. The two or more first steel bars 1241 and the two or more second steel bars 1242 are arranged crosswise.

[0079] In this embodiment, the first direction X may be the length direction of the battery device 100, and the second direction Y may be the width direction of the battery device 100. The first direction X and the second direction Y are perpendicular to each other, that is, the first reinforcement 1241 and the second reinforcement 1242 are perpendicular to each other.

[0080] By placing the at least one first steel bar 1241 and the at least one second steel bar 1242 within the casting 123, the strength of the casting 123 can be increased, thereby improving the tensile strength and effective load capacity of the battery device 100. Furthermore, the reinforcement member is steel bar, which is more readily available and low-cost, thereby reducing manufacturing costs.

[0081] In other embodiments, the reinforcement includes at least one first steel wire (not shown) and at least one second steel wire (not shown). The at least one first steel wire and the at least one second steel wire are arranged crosswise. In alternative embodiments, the reinforcement may also include glass fiber (not shown) or steel fiber (not shown).

[0082] See also Figure 10 as well as Figure 11 , Figure 10 yes Figure 9 An enlarged schematic diagram of E is shown; Figure 11 yes Figure 5 Shown is an enlarged schematic diagram of C. Figures 1 to 9 In some embodiments, the battery device 100 further includes a slide rail 125. The slide rail 125 includes a connecting portion 1251 and a supporting portion 1252 connected to each other. The connecting portion 1251 is embedded in the casting 123. The supporting portion 1252 is disposed on a surface of the casting 123 facing away from the plastic member 122.

[0083] The connection portion 1251 and the support portion 1252 can be detachably or fixedly connected. In this embodiment, the connection portion 1251 and the support portion 1252 are integrally formed. The connection portion 1251 serves as a connector. The connection portion 1251 can be embedded within the casting 123, enhancing the stability of the slide rail 125 installed within the casting 123. During the process of forming the casting 123 with concrete, the connection portion 1251 is embedded within the concrete and is fixed to the casting 123 as the concrete solidifies.

[0084] Support portion 1252 provides support. When positioned on the surface of cast member 123 facing away from plastic member 122, the surface of support portion 1252 facing away from cast member 123 is higher than the surface of cast member 123 facing away from plastic member 122. When transporting battery device 100 to an external environment, slide rail 125 not only reduces the risk of the bottom of cast member 123 scraping against and damaging the external surface, but also reduces friction during transport and dragging, thereby facilitating transportation.

[0085] The connection portion 1251 and the support portion 1252 work together to enhance the stability of the slide rail 125 when mounted on the casting 123. When the battery device 100 is being transported and pulled, the slide rail 125 reduces the chance of the bottom of the casting 123 scraping against and damaging the surrounding surface. It also reduces friction during transport and pulling, facilitating handling.

[0086] In some embodiments, a side surface of the connecting portion 1251 has a limiting portion 1253 .

[0087] The limiting portion 1253 can be detachably or fixedly connected to the connecting portion 1251. In this embodiment, the limiting portion 1253 is integrally formed with the connecting portion 1251. The limiting portion 1253 is disposed on the side of the connecting portion 1251, i.e., a curved arrangement is formed between the connecting portion 1251 and the limiting portion 1253, so that the entire slide rail 125 can be more stably embedded in the cast member 123. The side of the connecting portion 1251 can be provided with one, two, or more than three limiting portions 1253, etc., without limitation herein.

[0088] By providing a limiting portion 1253 on the side of the connecting portion 1251 , the stability of the slide rail 125 installed in the casting 123 is further improved, and the risk of the slide rail 125 falling out of the casting 123 is reduced.

[0089] In an embodiment, the slide rail 125 comprises two connecting portions 1251. One limiting portion 1253 on one connecting portion 1251 is arranged towards the other connecting portion 1251. The other limiting portion 1253 on the other connecting portion 1251 is arranged towards the other connecting portion 1251. The one connecting portion 1251 and the one limiting portion 1253 thereon form a bending portion (not shown in the figure), and the other connecting portion 1251 and the other limiting portion 1253 thereon form another bending portion (not shown in the figure). The two bending portions are arranged oppositely. Through the cooperation of the two connecting portions 1251 and the corresponding two connecting portions 1251, the stability of the slide rail 125 installed in the pouring member 123 is further improved, and the risk of the slide rail 125 being pulled out of the pouring member 123 is reduced.

[0090] In some embodiments, the slide rail 125 is two. The two slide rails 125 are symmetrically arranged on the side of the pouring member 123 away from the plastic member 122.

[0091] In some embodiments, the slide rail 125 is two. The two slide rails 125 are symmetrically arranged on the side of the pouring member 123 away from the plastic member 122.

[0092] In some embodiments, the slide rail 125 is two. The two slide rails 125 are symmetrically arranged on the side of the pouring member 123 away from the plastic member 122.

[0093] In an embodiment, the slide rail 125 is an extruded slide rail (not shown in the figure). The extruded slide rail is formed by an extrusion process. The extruded slide rail not only reduces the production cost, but also further reduces the friction. The extruded slide rail can be, but is not limited to, a polypropylene slide rail, an acrylonitrile-butadiene-styrene copolymer slide rail, and a polyoxymethylene slide rail.

[0094] Please refer to Figure 12 、 Figure 13 、 Figure 14 and Figure 15 , Figure 12 is a partial bottom view of the battery device according to one or more embodiments; Figure 13 is a structural schematic view of F-F shown in Figure 12 ; Figure 14 is an enlarged schematic view of G shown in Figure 13 ; Figure 15 is a structural schematic view of the pressing strip frame in the battery device according to one or more embodiments. In combination with Figures 1 to 11In some embodiments, the plastic member 122 is provided with a plurality of first fastening holes 1227 around its periphery. The battery device 100 further includes a plurality of pressure strips 1261. Pressure strips 1261 are connected to a side of the plastic member 122 facing away from the battery cell 11. Pressure strips 1261 are provided with a plurality of second fastening holes 12611. Fasteners are disposed within the first fastening holes 1227 and the second fastening holes 12611.

[0095] The periphery of the plastic member 122 can be determined by the shape of the plastic member 122. For example, in this embodiment, the plastic member 122 is square, and a plurality of first fastening holes 1227 can be provided on each of the four side peripheries of the plastic member 122. The first fastening holes 1227 serve as a connection. The number of first fastening holes 1227 is not limited.

[0096] The side of the plastic part 122 facing away from the battery cell 11 is defined as the second surface 1222. The bead 1261 is detachably or fixedly connected to the second surface 1222. As in the present embodiment, the bead 1261 is welded to the periphery of the second surface 1222. When the battery device 100 includes a plurality of beadings 1261, the plurality of beadings 1261 can be connected in sequence to the corresponding side edges of the second surface 1222. Each beading 1261 can be provided with a plurality of second fastening holes 12611. The second fastening holes 12611 play a connecting role. The number of second fastening holes 12611 is not limited. When the plastic part 122 is provided with a filling area 1224, the plurality of beadings 1261 are connected in the filling area 1224 and are provided close to the protrusion 1223.

[0097] Fasteners 127 may be, but are not limited to, rivet nuts. Battery device 100 includes multiple fasteners 127. The number of fasteners 127 may correspond to the number of first fastening holes 1227 and the number of second fastening holes 12611. That is, each first fastening hole 1227 and corresponding second fastening hole 12611 are provided with a corresponding fastener 127.

[0098] The multiple second fastening holes 12611 of the multiple pressure strips 1261 and the multiple first fastening holes 1227 of the plastic member 122 work together to provide a pre-fixed position, thereby ensuring the position of the fastener 127 and reducing the risk of shaking or tilting the fastener 127. This facilitates the production of the battery device 100 and the installation of auxiliary components (not shown). The auxiliary components may include, but are not limited to, a box cover, a panel, and a fuse.

[0099] In some embodiments, a plurality of beading strips 1261 are sequentially connected end to end and arranged to form a beading strip frame 126. The beading strip frame 126 is disposed along the periphery of a side of the plastic member 122 facing away from the battery cell 11.

[0100] Multiple beadings 1261 are welded end-to-end. Multiple beadings 1261 are arranged to form the overall beading frame 126. For example, there are four beadings 1261. One end of one beading 1261 is connected to one end of another beading 1261; the other end of another beading 1261 is connected to one end of yet another beading 1261; the other end of yet another beading 1261 is connected to one end of yet another beading 1261; and yet another beading 1261 is connected to the other end of yet another beading 1261. These four beadings 1261 are arranged to form the beading frame 126, and so on.

[0101] The plurality of beading strips 1261 define a beading frame 126, which facilitates the rapid installation of the beading frame 126 on the plastic member 122. At the same time, the beading frame 126 is limited to be arranged along the second surface 1222, so as to meet the requirements of pre-fixing of the plurality of fasteners 127.

[0102] The beading 1261 may be made of, but is not limited to, galvanized steel, galvanized magnesium aluminum, or cold-rolled steel. When multiple beadings 1261 or beading frames 126 are connected to the second surface 1222 , they not only provide mounting locations for the fasteners 127 but also enhance the strength of the plastic member 122 , thereby improving the load-bearing capacity of the battery device 100 .

[0103] In some embodiments, the casting 123 is a silicate mixed layer; or, the casting 123 includes at least a concrete layer.

[0104] The silicate mixed layer is made of a silicate mixture, including calcium silicate, limestone, clay, and steel slag (iron powder). The main components of limestone are calcium oxide and magnesium oxide, the main components of clay are silicon dioxide and aluminum oxide, and the main component of steel slag is iron oxide.

[0105] The silicate mixture material has low cost, and the use of silicate mixture and the like as the main supporting component of the battery device 100 can greatly reduce the manufacturing cost of the battery device 100. After the silicate mixture is formed and solidified, the structural strength is high, which can make the battery device 100 have higher structural rigidity and support strength. The silicate mixture has extremely strong high temperature resistance, which can avoid damage to the battery device 100 caused by thermal runaway of the battery cell 11, and can effectively improve the fire resistance of the battery device 100. The silicate mixture has a certain thermal insulation capacity, which can reduce the cold loss of the heat exchange component 121, and at the same time reduce the generation of condensed water at the bottom of the battery device 100. The silicate mixture has good corrosion resistance and weather resistance, and a long service life, which can enable the battery device 100 to maintain a long service life in various harsh working conditions.

[0106] The casting 123 may be formed by a combination of a partial concrete layer and other mixed layers. Alternatively, the casting 123 may be formed entirely of a concrete layer. The majority of the material in the concrete layer is cement. After solidification, the cement forms a cement layer. Cement may be, but is not limited to, Portland cement, ordinary Portland cement, fly ash Portland cement, composite Portland cement, rapid-hardening Portland cement, and aluminate cement. Because cement is relatively low in cost and high in strength, it has strong high-temperature resistance, certain thermal insulation and corrosion resistance, and a long service life. This greatly reduces the manufacturing cost of the battery device 100, and enables the battery device 100 to have a higher structural strength, improve the high-temperature resistance and corrosion resistance of the battery device 100, and enable the battery device 100 to have a certain thermal insulation capability, thereby effectively reducing the energy loss of the heat exchange element 121.

[0107] By limiting the material of the casting part 123 , the manufacturing cost of the battery device 100 can be reduced, and the battery device 100 can have a higher structural strength.

[0108] See also Figure 16 , Figure 16 yes Figure 3 A magnified schematic diagram shown. Figures 1 to 15 In some embodiments, the surface of the plastic member 122 facing the battery cell 11 is a first surface 1221. The first surface 1221 is provided with a first recessed groove 1225. The heat exchange member 121 is embedded in the first recessed groove 1225. The surface of the heat exchange member 121 facing away from the casting member 123 is lower than or flush with the first surface 1221.

[0109] Among them, the first recessed groove 1225 is arranged in a recessed shape. The first recessed groove 1225 provides a location for accommodating the heat exchanger 121. That is, the heat exchanger 121 can be embedded in the first recessed groove 1225. The shape of the heat exchanger 121 can match the shape of the first recessed groove 1225. As in the present embodiment, the shape of the heat exchanger 121 and the shape of the first recessed groove 1225 are both serpentine. In other embodiments, the shape of the heat exchanger 121 may not match the shape of the first recessed groove 1225, as long as the heat exchanger 121 is embedded in the first recessed groove 1225, and this is not limited here.

[0110] When the battery cell 11 is located on a side of the heat exchanger 121 away from the casting 123 , the side of the heat exchanger 121 away from the casting 123 is lower than or flush with the first surface 1221 , which can reduce the risk of damaging the battery cell 11 .

[0111] By limiting the relationship between the side surface of the heat exchange member 121 facing away from the casting member 123 and the first surface 1221 , the risk of damaging the battery cell 11 can be reduced while ensuring the battery cell 11 is cooled.

[0112] In a specific embodiment, the heat exchanger 121 can be connected to the plastic part 122 by heating and molding; or, the heat exchanger 121 can be connected to the plastic part 122 by structural adhesive bonding; or, the heat exchanger 121 can be connected to the plastic part 122 by integral injection molding, so that the heat exchanger 121 can be stably connected to the first recessed groove 1225 of the plastic part 122.

[0113] In some embodiments, the surface of the plastic member 122 facing away from the battery cell 11 is a second surface 1222 . The second surface 1222 is provided with a first protrusion 1226 . The first recessed groove 1225 extends to the first protrusion 1226 . The casting member 123 is provided with a second recessed groove 1231 . The first protrusion 1226 is embedded in the second recessed groove 1231 .

[0114] The plastic component 122 is recessed in the area where the heat exchanger 121 passes, forming a first recessed groove 1225 on the first surface 1221. As the plastic component 122 recesses, the first recessed groove 1225 on the second surface 1222 protrudes to form a first raised portion 1226. The casting 123 is provided with a second recessed groove 1231. The first raised portion 1226 is embedded in the second recessed groove 1231, and the casting 123 is recessed along with the first raised portion 1226 to form the second recessed groove 1231.

[0115] Through the interaction of the first protrusion 1226 of the second surface 1222 and the second recessed groove 1231 of the casting 123 , the interior of the casting 123 can change with the plastic component 122 , thereby improving adaptability.

[0116] The depth of the second recessed groove 1231 is less than the thickness of the casting 123, that is, the thickness of the casting 123 can be greater than the depth of the first recessed groove 1225. In other embodiments, the depth of the second recessed groove 1231 is similar to the thickness of the casting 123, in which case the concrete thickness can be close to the depth of the first recessed groove 1225.

[0117] In some embodiments, the plastic member 122 comprises a composite plate or an injection molded plastic plate.

[0118] The composite board may include but is not limited to a plastic-based composite material composite board and a plastic board, etc. The injection-molded plastic board includes but is not limited to an injection-molded polypropylene board and an injection-molded acrylonitrile-butadiene-styrene copolymer board.

[0119] By limiting the types of plastic parts 122 , diverse usage needs of users can be met.

[0120] In some specific application scenarios, the battery device 100 includes a battery cell 11, a plastic part 122, a heat exchanger 121, and a cast part 123. The plastic part 122 includes a first surface 1221 and a second surface 1222 disposed opposite to each other. The first surface 1221 supports the battery cell 11. The heat exchanger 121 is located on the first surface 1221. The battery cell 11 is located on the side of the heat exchanger 121 facing away from the plastic part 122. A protrusion 1223 is provided around the periphery of the second surface 1222. Multiple protrusions 1223 are arranged to form a filling area 1224. A batten frame 126 is welded within the filling area 1224. A rivet nut is connected to the plastic part 122 and the batten frame 126. The filling area 1224 is provided with a first cross-bar 1241 and a second cross-bar 1242. Concrete is poured into the filling area 1224, and then two slide rails 125 are embedded in the concrete and fixed as the concrete solidifies.

[0121] The battery device 100 can be applied to energy storage devices such as energy storage containers or energy storage cabinets.

[0122] Please refer to Figure 17 and Figure 18 , Figure 17 is a schematic diagram of a charging network structure according to one or more embodiments; Figure 18 Schematic diagram of an energy storage device according to one or more embodiments. Embodiments of the present application provide a charging network. Charging network 1000 includes charging piles 300, which are used to charge electrical devices. Charging network 1000 may also include an energy storage device 200, which is electrically connected to charging piles 300 and is used to provide electrical energy to charging piles 300.

[0123] It should be noted that the charging pile 300 is electrically connected to the battery cells in the energy storage device 200 via a cable, and the battery cells can provide their stored energy to the charging pile 300. The charging pile 300 has a connector that can be connected to an electrical device to replenish energy. The application of the energy storage device 200 in the charging network 1000 can effectively improve the safety of the charging network 1000 and also help increase the flexibility of the charging network 1000 during deployment.

[0124] In a charging network 1000 , there may be one charging pile 300 , and the energy storage device 200 provides power to the one charging pile 300 ; there may also be multiple charging piles 300 , and the energy storage device 200 provides power to multiple charging piles 300 .

[0125] As an example, Figure 17 As shown, the charging network 1000 includes an energy storage device 200 and two charging piles 300 , and one energy storage device 200 provides power to the two charging piles 300 .

[0126] The energy storage device 200 can include the battery device 100, which is electrically connected with the charging pile 300, so as to provide the charging pile 300 with electric energy.

[0127] Please refer to Figure 19 , Figure 19 is a structural schematic diagram of an energy storage system according to one or more embodiments. In combination with Figure 18 , the embodiments of the present application provide an energy storage system. The energy storage system 2000 includes an energy storage converter 400, which can be electrically connected with a power generation device 3000 to convert the electric power provided by the power generation device 3000. The energy storage system 2000 can further include an energy storage device 200, which is electrically connected with the energy storage converter 400, and the energy storage converter 400 guides the electric energy provided by the power generation device 3000 to the energy storage device 200 after power conversion for storage.

[0128] The power conversion device is used to be connected between the power generation device 3000 and the energy storage device 200. The power generation device 3000 is used to generate electric energy, and the power generation device 3000 is used to store the electric energy generated by the power generation device 3000 to the energy storage device 200 through the power conversion device. The energy storage system 2000 can effectively improve the operation safety of the energy storage system 2000 by applying the energy storage device 200. In specific implementation, the power generation equipment can be a solar panel, a hydroelectric power generation equipment, a thermal power generation equipment, etc. The specific type of the power generation equipment is not limited in the present application.

[0129] As an example, as shown in Figure 19 , the energy storage system 2000 includes the energy storage device 200 and the energy storage converter 400, and two power generation devices 3000 respectively transmit the generated electric energy to the energy storage converter 400, and the electric energy is guided to the energy storage device 200 through the energy storage converter 400 for storage.

[0130] As shown in Figure 18 , the energy storage device 200 includes an energy storage box 210, and the energy storage box 210 is provided with a battery device 100.

[0131] As an example, the energy storage device 200 can be an energy storage container, an energy storage cabinet, etc.

[0132] As an example, the energy storage device 200 can be used in an energy storage power station, a wind power system, a solar power system, a mobile power system, or a temporary power supply system, etc. The energy storage power station can store electric energy during the low electricity consumption period, and provide electric energy for relevant users or electric equipment during the peak electricity consumption period. The wind power generator set of the wind power system can collect wind energy and convert it into electric energy, which is stored by the energy storage device 200. The solar power system can convert solar energy into electric energy, which is stored by the energy storage device 200 and supplied to users in time. The mobile power system can supply electric energy for relevant electric equipment in places where the power grid supply system cannot reach, such as remote mountainous areas, remote wild areas, etc. The temporary power supply system can supply electric energy for users in the case of insufficient power supply.

[0133] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should be covered in the scope of the claims and the specification of the present application. In particular, as long as there is no structural conflict, the technical features mentioned in each embodiment can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A battery device, characterized in that: include: Battery cells; A plastic member, used for supporting the battery cell; a heat exchange component, embedded in the plastic component and used for exchanging heat with the battery cell; The casting part is arranged on a side of the plastic part away from the battery cell.

2. The battery device according to claim 1, wherein: The side of the plastic part facing away from the battery cell is a second surface. The second surface is provided with a plurality of protrusions. The plurality of protrusions are surrounded to form a filling area. The casting part is provided in the filling area.

3. The battery device according to claim 2, characterized in that The protrusion is extended along the edge of the second surface.

4. The battery device according to claim 1, wherein: The battery device further includes a reinforcement member disposed in the casting member.

5. The battery device according to claim 4, characterized in that The reinforcement member includes at least one first steel bar and at least one second steel bar, and the at least one first steel bar and the at least one second steel bar are cross-arranged.

6. The battery device according to claim 1, wherein: The battery device further includes a slide rail, which includes a connecting portion and a supporting portion that are connected to each other. The connecting portion is embedded in the casting component, and the supporting portion is arranged on a surface of the casting component that is away from the plastic component.

7. The battery device according to claim 6, characterized in that The side surface of the connecting portion is provided with a limiting portion.

8. The battery device according to claim 6, characterized in that There are two slide rails, and the two slide rails are symmetrically arranged on a side of the casting component away from the plastic component.

9. The battery device according to claim 1, wherein: The plastic part is provided with a plurality of first fastening holes on its periphery; the battery device further comprises a plurality of pressure strips, which are connected to a side of the plastic part facing away from the battery cell, and the pressure strips are provided with a plurality of second fastening holes, and fasteners are provided in the first fastening holes and the second fastening holes.

10. The battery device according to claim 9, characterized in that A plurality of the beading strips are sequentially connected end to end and arranged to form a beading strip frame, and the beading strip frame is arranged along the periphery of a side of the plastic component facing away from the battery cell.

11. The battery device according to any one of claims 1 to 10, characterized in that: The casting part is a silicate mixed layer; Alternatively, the casting part includes at least a concrete layer.

12. The battery device according to any one of claims 1 to 10, characterized in that: The side of the plastic part facing the battery cell is a first surface, the first surface is provided with a first recessed groove, the heat exchanger is embedded in the first recessed groove, and the side surface of the heat exchanger away from the casting part is lower than or flush with the first surface.

13. The battery device according to claim 12, characterized in that The side of the plastic part facing away from the battery cell is a second surface, the second surface is provided with a first protrusion, and the first recessed groove extends to the first protrusion; the casting part is provided with a second recessed groove, and the first protrusion is embedded in the second recessed groove.

14. The battery device according to any one of claims 1 to 10, characterized in that: The plastic part includes a composite plate or an injection-molded plastic plate.

15. An energy storage device, characterized in that: A battery device comprising any one of claims 1 to 14.

16. An energy storage system, characterized in that: It comprises a power conversion device and the energy storage device according to claim 15, wherein the power conversion device is used to electrically connect the power generation device and the energy storage device.

17. A charging network, characterized in that: It comprises a charging pile and an energy storage device as claimed in claim 15, wherein the energy storage device is used to provide electrical energy for the charging pile.

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