Insulating part, battery, battery module and electric equipment

Abstract

The embodiment of the utility model provides an insulating part, a battery, a battery module and electric equipment, and relates to the technical field of batteries, the insulating part comprises a bottom plate and at least one partition plate, and the bottom plate is used for bearing a pole core. The partition plates are arranged on the bottom plate and used for isolating the adjacent pole cores. According to the insulating part provided by the embodiment of the invention, the adjacent pole cores are insulated, so that the use and safety performance of the battery can be improved.

Description

Technical Field

[0001] This application relates to the field of battery technology, and in particular to an insulating component, a battery, a battery module, and an electrical device. Background Technology

[0002] The market for power batteries and energy storage batteries is huge, and improving the energy density and performance of individual battery cells has always been a key research focus.

[0003] In related technologies, multiple electrode cores are stacked to form a battery cell, such as a stacked lithium battery, which can increase the battery capacity.

[0004] However, the insulation performance of the aforementioned multi-core stacked battery structure is poor, which affects the battery's use and safety performance. Utility Model Content

[0005] Based on this, this application provides an insulating component, a battery, a battery module, and an electrical device to solve the problem of poor insulation performance in existing multi-core stacked battery structures.

[0006] In a first aspect, this application provides an insulating element, comprising:

[0007] The base plate is used to support the electrode core.

[0008] At least one partition is disposed on the base plate to isolate adjacent pole cores.

[0009] In one possible implementation, at least one of the base plate and the partition plate is provided with at least one vent.

[0010] In one possible implementation, the vent is a vent hole.

[0011] In one possible implementation, the vent holes include circular holes, rectangular holes, and triangular holes.

[0012] In one possible implementation, the vent includes a first vent, which is disposed on the partition.

[0013] In one possible implementation, a first reinforcing rib is provided on the partition, and the first reinforcing rib is located inside the first vent hole.

[0014] In one possible implementation, the first reinforcing rib includes at least one first rib and at least one second rib, the first rib and the second rib being intersected, and the ends of the first rib and the second rib being respectively connected to the partition plate.

[0015] In one possible implementation, multiple first vent holes are spaced apart along a first direction and / or a second direction.

[0016] In one possible implementation, a second reinforcing rib is provided on the partition plate. The second reinforcing rib protrudes from the surface of the partition plate facing the pole core and is arranged in a staggered manner with the first vent hole.

[0017] In one possible implementation, the second reinforcing rib includes at least one third rib and at least one fourth rib, the third rib and the fourth rib being intersected and connected, with the side of the third rib and the side of the fourth rib respectively connected to the partition plate.

[0018] In one possible implementation, the vent is a guide groove.

[0019] In one possible implementation, the guide groove is located on the surface of the separator facing the pole core and extends along the height direction of the separator.

[0020] In one possible implementation, a partition is provided, which is connected to the upper surface of the base plate and extends upward, with the base plate on both sides of the partition along the thickness direction for supporting at least one pole core.

[0021] Alternatively, multiple partitions may be provided, with the partitions spaced apart along the length of the base plate. An installation groove is formed between two adjacent partitions and the nearby base plate and shell, and at least one pole core is installed in the installation groove.

[0022] In one possible implementation, at least two side plates are also included, which are spaced apart along the length of the base plate.

[0023] Each partition is located between two side plates, and the side plates form mounting grooves with the adjacent bottom plate, partitions, and housing. The side plates are used at least to isolate the pole core from the housing.

[0024] In one possible implementation, at least one of the partition and side panels is integrally formed with the base plate.

[0025] In one possible implementation, the thickness of the base plate, partition, and side plates is 2mm to 3mm.

[0026] In one possible implementation, the dimension of the partition along the height direction is less than or equal to the dimension of the side plate along the height direction.

[0027] In one possible implementation, it also includes at least two covers, which are spaced apart along the width of the partition.

[0028] Each partition and each side plate is located between two covers. The covers at least partially cover the mounting grooves on both sides along the width direction of the partitions. The covers are used to isolate the pole core from the housing.

[0029] In one possible implementation, at least one of the base plate, partition plate, and side plate is an inorganic or organic insulator.

[0030] Secondly, this application also provides a battery, including a battery cell and any of the insulating components provided in the first aspect.

[0031] In one possible implementation, the battery cell includes a core and a housing, with an insulator located inside the housing, the core located on a bottom plate, and the core located between a separator and a side plate, or between two adjacent separators.

[0032] In one possible implementation, at least one of the partition and the side plate has at least a partial first gap with the pole core, the first gap being used for at least exhaust.

[0033] In one possible implementation, at least one of the bottom plate, partition, and side plate has at least a partial second gap between itself and the adjacent inner wall of the housing, the second gap being used for at least venting.

[0034] Thirdly, this application also provides a battery module, including a battery module body, on which any of the batteries provided in the second aspect are disposed.

[0035] Fourthly, this application also provides an electrical device, including a device body, on which any of the batteries provided in the second aspect are disposed;

[0036] Alternatively, the device itself may be equipped with the battery module provided in the third aspect.

[0037] The insulating component, battery, battery module, and electrical equipment provided in this application include a base plate and at least one separator. The base plate is used to support the electrode core and to insulate the electrode core from the casing. By placing the separator on the base plate, adjacent electrode cores are isolated and insulated from each other, thereby improving the battery's usability and safety performance. Attached Figure Description

[0038] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0039] Figure 1 This is a schematic diagram of the structure of the insulating component provided in the embodiments of this application;

[0040] Figure 2 This is a schematic diagram of the battery structure provided in an embodiment of this application;

[0041] Figure 3 for Figure 2 A sectional view along section AA in the middle;

[0042] Figure 4 for Figure 1 A sectional view along section BB;

[0043] Figure 5 for Figure 4 Another structural diagram;

[0044] Figure 6 for Figure 4 Another structural diagram;

[0045] Figure 7 for Figure 4 There is also a structural diagram;

[0046] Figure 8 for Figure 2 A partial structural diagram.

[0047] Figure label:

[0048] 10: Core;

[0049] 20: Shell;

[0050] 30: Pole column;

[0051] 40: Conductive components;

[0052] 50: Explosion-proof valve;

[0053] 60: Inner spacer ring;

[0054] 70: Cover;

[0055] 100: Base plate;

[0056] 110: Mounting slot;

[0057] 200: partition;

[0058] 210: Breathable section;

[0059] 220: First reinforcing rib;

[0060] 221: First rib;

[0061] 222: Second rib;

[0062] 230: Second reinforcing rib;

[0063] 231: Third rib;

[0064] 232: Fourth rib;

[0065] 300: Side panel;

[0066] 400: Cover part. Detailed Implementation

[0067] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of methods and apparatus consistent with some aspects of this application as detailed in the appended claims.

[0068] The terms “first,” “second,” “third,” “fourth,” etc. (if present) in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a particular order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of the application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms “comprising” and “having,” and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0069] Currently, the capacity limitations of lithium-ion batteries restrict their potential in energy storage, making the improvement of energy density and performance of individual lithium-ion battery cells a key research focus. Related technologies aim to increase the capacity of individual battery cells by expanding the length and width of the electrode cores and increasing their stacking ratio. However, multi-core stacking places higher demands on the insulation performance of individual battery cells, especially between adjacent cores, thus affecting battery usability and safety.

[0070] To address the aforementioned problems in the prior art, this application provides an insulating component, a battery, a battery module, and an electrical device. The insulating component provided in this application includes a base plate and at least one separator. The base plate supports the electrode core and insulates the electrode core from the casing. By placing the separator on the base plate, adjacent electrode cores are isolated, and insulation is provided between adjacent electrode cores, thereby improving the battery's usability and safety performance.

[0071] The technical solutions of this application will be described in detail below with specific embodiments. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments.

[0072] Firstly, please refer to Figures 1-8 As shown, this application embodiment provides an insulating component, including a base plate 100 and at least one partition plate 200, wherein the base plate 100 is used to support the electrode core 10.

[0073] A partition 200 is disposed on the base plate 100 to isolate adjacent pole cores 10.

[0074] In this embodiment, the pole core 10 can be made by stacking or winding, and it is generally rectangular in shape.

[0075] In this embodiment, the base plate 100 is used to support the bottom of the pole core 10, and it has a thin plate, sheet, block or other structure.

[0076] In this embodiment, the partition 200 is used to isolate adjacent pole cores 10. It can be a thin plate structure. The partition 200 can be integrally formed with the base plate 100, or it can be connected to the base plate 100 by means of hot melting, bonding or other methods.

[0077] It should be noted that the base plate 100 and the partition plate 200 can be made of inorganic or organic insulating materials. Commonly used inorganic insulating materials include silicon oxide, silicon nitride, aluminum oxide, and aluminum nitride, while commonly used organic insulating film materials include polyimide, polyethylene, polyvinylidene fluoride, and polytetrafluoroethylene. Alternatively, silicone material can also be used. The specific materials of the base plate 100 and the partition plate 200 can be determined according to actual needs, and are not specifically limited in this embodiment.

[0078] Specifically, the insulating component is placed inside the housing 20, and the electrode core 10 is placed on the base plate 100, along with other components required for the battery, to form a battery cell. Adjacent electrode cores 10 are separated by a separator 200. During use, when the electrode core 10 heats up and the electrolyte produces gas, the base plate 100 and the separator 200 can conduct at least some of the heat towards the electrolyte and the housing 20. The gas is conducted upwards under the action of buoyancy to the gap at the explosion-proof valve, which is beneficial for the explosion-proof valve to accurately prevent explosion when necessary, and prevents gas from accumulating at the bottom of the electrode core 10 or between the electrode cores 10, which would cause bulging.

[0079] It should be noted that multiple separators 200 can be provided, and an installation groove 110 is formed between two adjacent separators 200 to accommodate more electrode cores 10 in order to increase battery capacity.

[0080] Therefore, the insulating component provided in this embodiment includes a base plate 100 and at least one separator 200. The base plate 100 is used to support the electrode core 10 and to insulate the electrode core 10 from the housing 20. By placing the separator 200 on the base plate 100, adjacent electrode cores 10 are isolated and insulated from each other, thereby improving the battery's usability and safety performance.

[0081] In some embodiments, at least one of the base plate 100 and the partition plate 200 is provided with at least one vent 210.

[0082] Specifically, at least one vent 210 is provided on the base plate 100 and / or partition 200. The vent 210 can be a vent hole, a guide groove, etc., which is conducive to the release, collection, and upward movement of gas generated by the electrolyte.

[0083] In one example, the vent 210 is a vent hole. For example... Figure 1 As shown, multiple ventilation holes are provided on both the base plate 100 and the partition plate 200. This facilitates the passage of gas and improves the ventilation of the electrode core 10.

[0084] For example, in this embodiment, the vent holes include circular holes and rectangular holes. Figure 1 As shown, the vent holes can be circular, rectangular, triangular, etc., for ease of processing. Of course, vent holes can also be irregularly shaped, as long as they facilitate air exhaust.

[0085] Furthermore, in this embodiment, the vent includes a first vent, which is disposed on the partition 200.

[0086] Specifically, the first vent on the partition 200 facilitates the lateral movement of gas, such as along... Figure 1 The gas moves along the X-axis and then converges before moving upwards through the gap between the partition 200 and the electrode core 10, or through the gap between the partition 200 and the housing 20. The partition 200 can guide the gas movement. The first vent can be a rectangular hole, a round hole, a triangular hole, or an irregularly shaped hole.

[0087] Additionally, the vent may include a second vent, which is disposed on the base plate 100. The second vent on the base plate 100 facilitates the vertical movement of gas, such as along... Figure 1 The gas moves in the opposite direction along the Z-axis, converging below the base plate 100, and then moves laterally and upward through the gap between the base plate 100 and the housing 20. The base plate 100 also guides the gas movement. The second vent can be a round hole, rectangular hole, triangular hole, or irregularly shaped hole, and multiple vents can be arranged in a rectangular array on the base plate 100. The specific shape and number of the first and second vents can be determined according to actual needs; this embodiment does not impose excessive restrictions.

[0088] It is worth noting that the first or second vent can also be used to arrange temperature and pressure acquisition components, so as to make full use of the limited space inside the battery.

[0089] In another example, not shown in the figure, the vent 210 can also be a vent groove, a drainage groove, etc., which can also lead out the gas between the electrode core 10 and the base plate 100 or the partition plate 200. The specific structure of the vent 210 can be determined according to actual needs, and is not limited in this embodiment.

[0090] Furthermore, in this embodiment, a first reinforcing rib 220 is provided on the partition 200, and the first reinforcing rib 220 is located inside the first vent hole.

[0091] Specifically, such as Figure 4 , Figure 5 As shown, the first vent is a rectangular hole, and a first reinforcing rib 220 is provided inside it. Exemplarily, the first reinforcing rib 220 includes at least one first rib 221 and at least one second rib 222, the first rib 221 and the second rib 222 are connected to each other, and the ends of the first rib 221 and the ends of the second rib 222 are respectively connected to the partition plate 200.

[0092] That is, the first rib 221 and the second rib 222 intersect and connect to form an "X" shape, a "well" shape, or other structures, and the ends of the two ribs can be connected to the inner wall around the first vent hole, respectively. The first reinforcing rib 220 can enhance the toughness and mechanical strength of the partition 200 and prevent it from breaking and puncturing the pole core 10.

[0093] More specifically, in this embodiment, a plurality of first vent holes are provided at intervals along the width direction and / or the height direction of the partition 200.

[0094] like Figure 4 As shown, multiple first vent holes can be evenly distributed along the width and height directions of the partition 200, i.e., arranged in a rectangular array. The width direction of the partition 200 is... Figure 4 As shown in the Y-axis direction, the height direction of the partition 200 is along... Figure 4 The Z-axis direction is shown in the figure.

[0095] Of course, the entire partition 200 can also have only one large first vent, such as Figure 5 As shown, a first reinforcing rib 220 can be provided in the first vent hole, which is roughly in the shape of an "X" or a "well".

[0096] Furthermore, in this embodiment, a second reinforcing rib 230 is provided on the partition 200. The second reinforcing rib 230 protrudes from the surface of the partition 200 facing the pole core 10 and is arranged in a staggered manner with the first vent hole.

[0097] Specifically, such as Figure 6 As shown, a second reinforcing rib 230 is provided on the surface of the partition 200 facing the pole core 10. Exemplarily, the second reinforcing rib 230 includes at least one third rib 231 and at least one fourth rib 232, the third rib 231 and the fourth rib 232 are intersecting, and the side of the third rib 231 and the side of the fourth rib 232 are respectively connected to the partition 200.

[0098] That is, the first rib 221 and the second rib 222 intersect and connect to form an "X" shape, a "well" shape, etc., and the second reinforcing rib 230 protrudes from the surface of the partition plate 200 facing the pole core 10. The sides of the first rib 221 and the second rib 222 are respectively connected to the surface of the partition plate 200 facing the pole core 10. Then, one or more first vent holes are opened on the partition plate 200 at a position avoiding the second reinforcing rib 230. The specific shape and number of the first vent holes and the second reinforcing rib 230 can be determined according to actual needs, and are not limited in this embodiment.

[0099] In another example, the vent 210 is a guide groove. In this way, the gas generated by the electrode core 10 can move along the guide groove.

[0100] Furthermore, in this embodiment, the guide groove is located on the surface of the partition 200 facing the pole core 10 and extends along the height direction of the partition 200.

[0101] For example, such as Figure 7 As shown, the guide groove is a capillary groove with a depth of 0.002mm to 0.02mm and no specific width is limited. The capillary groove can be straight or curved and multiple grooves can be arranged at intervals along the width of the partition 200. Under the guiding effect of the guide groove on the partition 200, it is beneficial to guide the gas generated by the electrode core 10 to be discharged, thereby facilitating the gas to be discharged in the vertical direction. This allows the gas to accumulate in the cage space formed by the inner partition ring 60, which is beneficial to the precise explosion protection of the explosion-proof valve 50.

[0102] In some embodiments, a partition 200 is provided, which is connected to the upper surface of the base plate 100 and extends upward, and the partition 200 is used to support at least one pole core 10 on both sides of the base plate 100 along the thickness direction.

[0103] Alternatively, multiple partitions 200 may be provided, with the multiple partitions 200 arranged at intervals along the length of the base plate 100. An installation groove 110 is formed between two adjacent partitions 200 and the nearby base plate 100 and housing 20. The installation groove 110 is used to install at least one pole core 10.

[0104] Specifically, such as Figure 1 As shown, partitions 200 are erected on the upper surface of the base plate 100. One, four, or more partitions 200 can be spaced apart along the length of the base plate 100. When there is only one partition 200, at least one pole core 10 can be placed or installed on both sides of the base plate 100 along its thickness direction. When there are multiple partitions 200, at least one pole core 10 can be installed in the mounting groove 110 formed between two adjacent partitions 200. The length direction of the base plate 100 is as follows... Figure 1As shown in the X-axis direction, the length direction of the base plate 100 is perpendicular to the width direction and the height direction of the partition 200, while the width direction of the base plate 100 is consistent with or parallel to the width direction of the partition 200, and the length direction of the base plate 100 is consistent with or parallel to the thickness direction of the partition 200. This facilitates manufacturing and installation, and the structure is more reasonable.

[0105] Furthermore, in this embodiment, at least two side plates 300 are also included, which are arranged at intervals along the length of the base plate 100.

[0106] Each partition 200 is located between two side plates 300. The side plates 300 form an mounting groove 110 with the adjacent bottom plate 100, partition 200 and housing 20. The side plates 300 are used at least to isolate the pole core 10 from the housing 20.

[0107] Specifically, the side plate 300 serves to isolate the pole core 10 from the housing 20, and in conjunction with the partition plate 200, it restricts the side surface (large surface) of the pole core 10, providing restraint force. It can be a thin plate structure. The side plate 300 and the partition plate 200 can be connected to the same side surface of the base plate 100 and arranged at intervals along the length of the base plate 100, such as along... Figure 1 As shown in the X-axis direction, the partition 200 and the side plate 300 are parallel to each other, and the partition 200 is located between the two side plates 300, so that the side plate 300 and the adjacent partition 200 form an installation groove 110 for placing the pole core 10.

[0108] This provides isolation and insulation between the electrode core 10 and the housing, while also facilitating the installation of the electrode core 10. For Figure 1 Two side plates 300 can also be set on both sides in the Y-axis direction. After the pole core 10 is installed, the side plates 300 of the corresponding size can be sealed and connected.

[0109] Furthermore, in this embodiment, at least one of the partition 200 and the side plate 300 is integrally formed with the base plate 100.

[0110] For example, the partition 200 can be integrally formed with the base plate 100, or the side plate 300 can be integrally formed with the base plate 100, or both the partition 200 and the side plate 300 can be integrally formed with the base plate 100. This ensures the consistency of the insulating component and facilitates mass production.

[0111] Furthermore, in this embodiment, the thickness of the base plate 100, the separator 200, and the side plate 300 is 2mm to 3mm. The thickness of commonly used insulating materials in batteries is related to the voltage they can withstand and the insulation resistance requirements. At 1000V, an insulation resistance greater than 200MΩ is sufficient to meet the requirements. For battery insulation components, to withstand 1000V and achieve an insulation resistance of 200MΩ, the thickness of common insulating materials is generally around 0.5 mm to 2 mm. For example, plastic insulating materials such as polyamide and polyoxymethylene can meet the requirements with a thickness of around 0.8 mm to 1.5 mm; while rubber materials such as nitrile rubber require a thickness of around 1 mm to 2 mm; for composite materials such as glass fiber reinforced plastics, a thickness of around 0.5 mm is sufficient; and for polypropylene, a thickness of around 0.05 mm is sufficient. The above basically covers the commonly used materials for battery insulation components. To ensure the insulation performance and a certain structural strength of the insulation components, the thickness of the base plate 100, separator 200, and side plate 300 should all be greater than or equal to 2 mm. Considering that the thickness of the insulation components will encroach on the space for placing the electrode core, the thickness of the insulation components should not exceed 3 mm.

[0112] As the thickness of the plate increases, its insulation performance is better and its load-bearing strength is higher. The thickness can be 2.0mm, 2.1mm, 2.2mm, 2.25mm, 3.0mm, etc. Therefore, the specific thickness of the base plate 100, partition plate 200 and side plate 300 can be determined according to actual needs. In this embodiment, no specific limitation is made.

[0113] Furthermore, relative to the base plate 100, the dimension h of the partition plate 200 along the height direction is less than or equal to the dimension H of the side plate 300 along the height direction. In this way, since the height of the pole core 10 is less than the height of the shell, the height of the partition plate 200 can be matched with the height of the pole core 10, and the height of the side plate 300 can be matched with the height of the shell 20, ensuring sufficient insulation without wasting material. The specific heights of the partition plate 200 and the side plate 300 can be determined according to actual needs; this embodiment does not impose a specific limitation.

[0114] Wherein, the height direction of the partition 200 or the side plate 300 is along Figure 4 As shown in the Z-axis direction, the specific thickness, height, etc. of the base plate 100, partition plate 200 and side plate 300 can be determined according to actual needs, and no excessive restrictions are imposed in this embodiment.

[0115] Furthermore, in this embodiment, at least two covering members 400 are also included, which are arranged at intervals along the width direction of the partition 200.

[0116] Each partition 200 and each side plate 300 are located between two covers 400. The covers 400 at least partially cover the mounting groove 110 on both sides along the width direction of the partition 200. The covers 400 are used to isolate the pole core 10 from the housing 20.

[0117] Specifically, such as Figure 8 As shown, the cover 400 can be an insulating film or an insulating board, and the width direction of the partition 200 is as follows: Figure 1 As shown in the Y-axis direction, the cover 400 covers both sides of the insulating part without side plates 300. One method is to use an insulating film to adhere and cover both sides of the sideless part 300; another is to heat-melt an insulating plate of the corresponding size after assembling the electrode core 10, thus achieving full coverage of all four sides of the electrode core 10 to ensure insulation between the electrode core 10 and the housing 20.

[0118] Furthermore, in this embodiment, at least one of the base plate 100, partition plate 200, and side plate 300 is an inorganic insulating component or an organic insulating component.

[0119] That is, at least one of the base plate 100, partition plate 200, and side plate 300 can be made of inorganic or organic insulating materials. Commonly used inorganic insulating materials include silicon oxide, silicon nitride, aluminum oxide, and aluminum nitride. Commonly used organic insulating materials include polyimide, polyethylene, polyvinylidene fluoride, and polytetrafluoroethylene. Of course, silicone can also be used. The specific materials of the base plate 100, partition plate 200, and side plate 300 can be determined according to actual needs, and this embodiment does not impose too many restrictions.

[0120] Secondly, embodiments of this application also provide a battery, including a battery cell and an insulating component provided in any of the above embodiments.

[0121] The structure of the insulating component has been described in detail in the above embodiments, and will not be repeated here.

[0122] It is understood that the battery provided in this application embodiment, by configuring the above-mentioned insulating component, the insulating component includes a base plate 100 and at least one separator 200. The base plate 100 is used to support the electrode core 10 and to insulate the electrode core 10 from the casing 20. By setting the separator 200 on the base plate 100, adjacent electrode cores 10 are isolated and insulated from each other, thereby improving the battery's usability and safety performance.

[0123] Furthermore, in this embodiment, the battery cell includes a core 10 and a housing 20, an insulating component is located inside the housing 20, the core 10 is located on the bottom plate 100, and the core 10 is located between the separator 200 and the side plate 300, or the core 10 is located between two adjacent separators 200.

[0124] Specifically, the housing 20 is generally rectangular in shape and has an internal mounting cavity. All the electrode cores 10 are installed into the mounting slots 110, so that the electrode cores 10 are in contact with the base plate 100 and located between the separator 200 and the side plate 300, or between two separators 200. Then, the electrode cores 10 and the insulating components are placed together into the housing 20, along with other components required for the battery, to form a battery cell. The electrode cores 10 are isolated from the inner wall of the housing 20 by the side plate 300, and the electrode cores 10 are isolated from the inner bottom wall of the housing 20 by the base plate 110. 00 isolation, the electrode cores 10 are isolated from each other by a partition 200. During use, when the electrode core 10 expands slightly, the partition 200 and the side plate 300 restrain the electrode core 10 to ensure its performance. When the electrode core 10 heats up and the electrolyte produces gas, the bottom plate 100, the partition 200 and the side plate 300 can at least conduct some heat to the shell 20 and conduct some gas upward to the gap at the explosion-proof valve. This is beneficial for the explosion-proof valve to accurately prevent explosion when necessary and prevent gas from accumulating at the bottom of the crowded multi-electrode core, which would cause bulging.

[0125] It should be noted that, since the pole core 10 is not wrapped around its perimeter, in order to ensure the insulation between the pole core 10 and the housing 20, an insulating film can be pasted and wrapped around the perimeter of the pole core 10, or the corresponding size side plate 300 can be hot-melted after the pole core 10 is fully installed to achieve full wrapping of the pole core 10, so as to isolate and insulate it from the inner wall of the housing.

[0126] Furthermore, in this embodiment, at least one of the partition plate 200 and the side plate 300 has at least a partial first gap with the pole core 10, the first gap being used for at least exhaust.

[0127] In other words, there is at least a partial first gap between the partition 200 or the side plate 300 and the electrode core 10, so that the gas can move upward and collect. The specific size of the first gap can be determined according to actual needs, and is not specifically limited in this embodiment.

[0128] Furthermore, in this embodiment, at least one of the bottom plate 100, the partition plate 200, and the side plate 300 has at least a partial second gap between itself and the adjacent inner wall of the housing 20, the second gap being used for at least venting.

[0129] In other words, there is at least a partial second gap between the bottom plate 100, partition plate 200, or side plate 300 and the adjacent inner wall of the shell 20, so that the gas can move upward and collect. The specific size of the second gap can be determined according to actual needs, and is not specifically limited in this embodiment.

[0130] In addition, the battery may also include a terminal post 30, a conductive component 40 and an explosion-proof valve 50. The terminal post 30 is disposed on the housing 20 and connected to the electrode core 10 through the conductive component 40. The explosion-proof valve 50 is disposed on the housing 20.

[0131] Specifically, such as Figure 2 , Figure 4 As shown, the pole post 30 and the explosion-proof valve 50 are located above the housing 20. The pole post 30 is electrically connected to the pole core 10 through conductive components 40 (such as tabs, copper busbars, etc.).

[0132] It should be noted that, Figure 2 Each mounting slot 110 shows only one terminal 30, but in actual use it should be set to two, namely a positive terminal and a negative terminal.

[0133] Additionally, an inner spacer 60 can be provided at the upper part of the housing 20 to facilitate the installation and fixation of the electrode post 30. An opening can also be provided on the housing 20, corresponding to each mounting groove 110, for use such as liquid injection. A cover 70 can be provided at the opening for sealing. Other components (such as temperature and pressure acquisition components) can be installed according to actual needs; this embodiment does not impose excessive restrictions.

[0134] Thirdly, embodiments of this application also provide a battery module, including a battery module body, on which a battery provided in any of the above embodiments is disposed. For example, the battery module may be a battery module, a battery pack, a battery cluster, etc.

[0135] The structure of the battery has been described in detail in the above embodiments, and will not be repeated here.

[0136] It is understood that the battery module provided in this application embodiment, by configuring the above-mentioned battery, includes an insulating component, which includes a base plate 100 and at least one separator 200. The base plate 100 is used to support the electrode core 10 and to insulate the electrode core 10 from the housing 20. By setting the separator 200 on the base plate 100, adjacent electrode cores 10 are isolated and insulated from each other, thereby improving the battery's usability and safety performance.

[0137] Fourthly, embodiments of this application also provide an electrical device, including a device body and a battery or battery module provided in any of the above embodiments disposed on the device body.

[0138] The structure of the battery has been described in detail in the above embodiments, and will not be repeated here.

[0139] The electrical equipment mentioned here can be new energy vehicles, communication base stations, energy storage power stations, etc. The equipment body of these electrical equipment can be connected to the battery or battery module by means of screw connection, snap connection, etc., and the equipment body is also electrically connected to the battery or battery module to supply power to the electrical equipment.

[0140] It is understood that the electrical equipment provided in this application embodiment, by configuring the above-mentioned battery or a battery module having the battery, the battery module includes an insulating component, the insulating component includes a base plate 100 and at least one separator 200, the base plate 100 is used to support the electrode core 10 and to insulate the electrode core 10 from the housing 20, by setting the separator 200 on the base plate 100 to isolate adjacent electrode cores 10 and to insulate adjacent electrode cores 10 from each other, thereby improving the use and safety performance of the battery.

[0141] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this application are indicated by the claims.

[0142] It should be understood that this application is not limited to the precise structures described above and shown in the appendix, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. An insulating member, characterized by, include: A base plate (100) is used to support the pole core (10). At least one partition (200) is disposed on the base plate (100) for isolating adjacent pole cores (10).

2. The insulator of claim 1, wherein At least one of the base plate (100) and the partition plate (200) is provided with at least one vent (210).

3. The insulator of claim 2, wherein The venting part (210) is a vent hole.

4. The insulator of claim 3, wherein The ventilation holes include circular holes, rectangular holes, and triangular holes.

5. The insulating component according to claim 3, characterized in that, The vent includes a first vent, which is disposed on the partition (200).

6. The insulating component according to claim 5, characterized in that, The partition (200) is provided with a first reinforcing rib (220), which is located inside the first vent hole.

7. The insulator of claim 6, wherein The first reinforcing rib (220) includes at least one first rib (221) and at least one second rib (222), the first rib (221) and the second rib (222) are connected to each other, and the ends of the first rib (221) and the second rib (222) are respectively connected to the partition (200).

8. The insulator of claim 5, wherein, The first vent hole is provided in multiple spaces along the width direction and / or the height direction of the partition (200).

9. The insulator of claim 5, wherein, The partition (200) is provided with a second reinforcing rib (230), which protrudes from the surface of the partition (200) facing the pole core (10) and is arranged in a staggered manner with the first vent hole.

10. The insulating element according to claim 9, characterized in that, The second reinforcing rib (230) includes at least one third rib (231) and at least one fourth rib (232), the third rib (231) and the fourth rib (232) are connected to each other, and the side of the third rib (231) and the side of the fourth rib (232) are respectively connected to the partition plate (200).

11. The insulating component according to claim 2, characterized in that, The ventilated part (210) is a guide groove.

12. The insulator of claim 11, wherein, The guide groove is located on the surface of the partition (200) facing the pole core (10) and extends along the height direction of the partition (200).

13. The insulator of any one of claims 1 to 12, wherein, The partition (200) is configured as one, the partition (200) is connected to the upper surface of the base plate (100) and extends upward, and the partition (200) is used to support at least one of the pole cores (10) on both sides of the base plate (100) along the thickness direction. Alternatively, the partition (200) may be configured as a plurality of partitions (200) arranged at intervals along the length direction of the base plate (100), and an mounting groove (110) may be formed between two adjacent partitions (200) and the adjacent base plate (100) and housing (20), and the mounting groove (110) may be used to install at least one of the pole cores (10).

14. The insulating element according to claim 13, characterized in that, It also includes at least two side plates (300), which are arranged at intervals along the length of the base plate (100); Each of the partitions (200) is located between the two side plates (300), and the side plate (300) forms the mounting groove (110) with the adjacent bottom plate (100), the partition (200), and the housing (20). The side plate (300) is used at least to isolate the pole core (10) from the housing (20).

15. The insulator of claim 14, wherein, At least one of the partition (200) and the side plate (300) is integrally formed with the base plate (100).

16. The insulator of claim 14, wherein The thickness of the base plate (100), the partition plate (200), and the side plate (300) is 2mm to 3mm.

17. The insulator of claim 14, wherein The dimension of the partition (200) along the height direction is less than or equal to the dimension of the side plate (300) along the height direction.

18. The insulating element according to claim 14, characterized in that, It also includes at least two covers (400), which are arranged at intervals along the width direction of the partition (200); Each of the partitions (200) and each of the side plates (300) are located between two of the covers (400), the covers (400) covering at least part of the mounting groove (110) on both sides along the width direction of the partition (200), the covers (400) being used to isolate the pole core (10) from the housing (20).

19. The insulating element according to claim 14, characterized in that, At least one of the base plate (100), the partition plate (200), and the side plate (300) is an inorganic insulating component or an organic insulating component.

20. A battery, characterized by It includes battery cells and insulation components as described in any one of claims 1 to 19.

21. The battery of claim 20, wherein, The battery cell includes an electrode core (10) and a housing (20). The insulating component is located inside the housing (20). The electrode core (10) is located on the base plate (100). The electrode core (10) is located between the separator (200) and the side plate (300), or the electrode core (10) is located between two adjacent separators (200).

22. The battery of claim 21, wherein, At least one of the partition (200) and the side plate (300) has at least a partial first gap with the pole core (10), the first gap being used for at least exhaust.

23. The battery according to claim 21, characterized in that, At least one of the base plate (100), the partition plate (200) and the side plate (300) has at least a partial second gap between itself and the adjacent inner wall of the housing (20), the second gap being used for at least venting.

24. A battery module, characterized in that, It includes a battery module body, on which a battery as described in any one of claims 20 to 23 is disposed.

25. An electrical device, comprising: Includes a device body, wherein the device body is provided with a battery as described in any one of claims 20 to 23; Alternatively, the device body may be provided with a battery module as described in claim 24.

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