Space ring monomer, space ring assembly, battery, battery device and electric equipment

Abstract

The utility model relates to the technical field of batteries, in particular to a space ring monomer, a space ring assembly, a battery, a battery device and electric equipment. Each space ring single body comprises a clamping part and a clamping part, wherein the clamping part is used for clamping a tab; the assembling part is connected to one side of the clamping part; a gap is formed between the clamping part and the assembling part and is used for accommodating part of the tabs. The tab is clamped by the clamping part, and the gap is formed between the clamping part and the assembling part to accommodate part of the tab, so that the gap between the two sides of the space ring during buckling is increased, and the deformation quantity of each position tends to be consistent when the space ring clamps the tab, thereby preventing the space ring from being bounced off due to overlarge tension of the tab in the use process of the battery, and ensuring the safety of the battery. And the problem that the space ring falls off is solved. Meanwhile, the notches can also be used as a liquid injection channel for injecting liquid into the battery cell and an exhaust channel for exhausting the interior of the battery cell, so that the structural suitability of the space ring to the battery is improved.

Description

Technical Field

[0001] This application relates to the technical field of batteries, and particularly to a spacer monomer, a spacer assembly, a battery, a battery device, and an electrical equipment. Background Art

[0002] At present, during the assembly and manufacturing of batteries, in order to facilitate the assembly of the battery tabs, usually two side spacers are provided. The roots of the tabs are clamped by the two side spacers, so that the free parts of the tabs are restricted between the side spacers and the lead-out sheets.

[0003] However, in the prior art, the method of clamping the tabs by the spacers is prone to the problem that both sides of the spacer are sprung off and detached, resulting in defective failure. Summary of the Utility Model

[0004] Based on this, this application provides a spacer monomer, a spacer assembly, a battery, a battery device, and an electrical equipment to solve the problem that both sides of the spacer are sprung off and detached, resulting in defective failure.

[0005] On the one hand, this application provides a spacer monomer for clamping a tab. The spacer monomer includes:

[0006] A clamping portion for clamping the tab;

[0007] An assembly portion connected to one side of the clamping portion;

[0008] A notch is provided between the clamping portion and the assembly portion for accommodating a part of the tab.

[0009] In a possible implementation, there are two assembly portions located on opposite sides of the clamping portion.

[0010] In a possible implementation, the length of the clamping portion is L, and the width of the tab is X, where L satisfies: 0.1X ≤ L ≤ 0.8X.

[0011] In a possible implementation, L satisfies: 0.5X ≤ L ≤ 0.8X.

[0012] In a possible implementation, the length of the notch is m, where m satisfies: 5 mm ≤ m ≤ 100 mm.

[0013] In a possible implementation, the depth of the notch is n, and the width of the spacer monomer is W, where n satisfies: 0.5W ≤ n.

[0014] In a possible implementation, n satisfies: 0.5W ≤ n ≤ 0.8W.

[0015] In a possible implementation, the depth of the notch near the assembly portion is greater than the depth of the notch near the clamping portion.

[0016] In a possible implementation, along the direction from the assembly part to the clamping part, the depth of the notch gradually decreases.

[0017] In a possible implementation, the spacer single body further includes a fixing part, the fixing part is connected to one side of the clamping part, and the assembly part is arranged on the fixing part.

[0018] On the other hand, the present application provides a spacer assembly, including a first spacer and a second spacer. The first spacer and the second spacer are the above-mentioned spacer single bodies. The assembly part of the first spacer is connected to the assembly part of the second spacer, so that the clamping parts of the first spacer and the second spacer respectively clamp on both sides of the tab.

[0019] In a possible implementation, the assembly part includes a first assembly part and a second assembly part. The first spacer is provided with the first assembly part, and the second spacer is correspondingly provided with the second assembly part connected to the first assembly part; and / or

[0020] The first spacer is provided with the second assembly part, and the second spacer is correspondingly provided with the first assembly part connected to the second assembly part.

[0021] In a possible implementation, the first assembly part and the second assembly part are detachably connected.

[0022] In a possible implementation, the first assembly part is a buckle, and the second assembly part is a clamping groove.

[0023] On yet another aspect, the present application provides a battery, including a tab and the above-mentioned spacer assembly, and the tab is clamped between the clamping parts of the first spacer and the second spacer.

[0024] On still another aspect, the present application provides a battery device, including at least one of the above-mentioned batteries.

[0025] On still another aspect, the present application provides an electrical equipment, including the above-mentioned battery device, or including at least one of the above-mentioned batteries.

[0026] The spacer single body, spacer assembly, battery, battery device and electrical equipment provided by the present application clamp the tab through the clamping part, and by arranging a notch between the clamping part and the assembly part to accommodate part of the tab, the gap when the two sides of the spacer are buckled is increased, so that when the spacer clamps the tab, the deformation amounts at each position tend to be consistent, thereby preventing the spacer from being bounced off due to excessive tab tension during the use of the battery, resulting in the problem of poor failure such as the spacer falling off. At the same time, the notch can also be used as a liquid injection channel for injecting liquid into the battery cell and an exhaust channel for exhausting air inside the battery cell, improving the structural adaptability of the spacer to the battery. Description of the Drawings

[0027] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0028] Figure 1 One of the structural schematic diagrams of the spacer ring monomer provided by the embodiment of the present application;

[0029] Figure 2 Is Figure 1 The structural schematic diagram of another perspective of the shown spacer ring monomer;

[0030] Figure 3 Another structural schematic diagram of the spacer ring monomer provided by the embodiment of the present application;

[0031] Figure 4 Is Figure 3 The structural schematic diagram of another perspective of the shown spacer ring monomer;

[0032] Figure 5 The structural schematic diagram of the spacer ring assembly provided by the embodiment of the present application;

[0033] Figure 6 Is Figure 5 The exploded structural schematic diagram of the shown spacer ring assembly;

[0034] Figure 7 Is Figure 5 The structural schematic diagram of another perspective of the shown spacer ring assembly;

[0035] Figure 8 The structural schematic diagram of the spacer ring assembly and the tab provided by the embodiment of the present application;

[0036] Figure 9 The structural schematic diagram of the spacer ring assembly clamping the tab provided by the embodiment of the present application;

[0037] Figure 10 Is Figure 9 The structural schematic diagram of another perspective of the shown spacer ring assembly clamping the tab;

[0038] Figure 11 The deformation amount of the clamping position when the spacer ring assembly clamps the tab in the prior art;

[0039] Figure 12 The deformation amount of the clamping position when the spacer ring assembly clamps the tab in the embodiment of the present application.

[0040] Explanation of the reference numerals:

[0041] 100 - spacer monomer; 10 - clamping part; 11 - reinforcing rib; 20 - assembly part; 21 - first assembly part; 22 - second assembly part; 30 - notch; 40 - fixing part; 41 - disassembly groove; 42 - weight - reducing groove; 200 - spacer assembly; 201 - first spacer; 202 - second spacer; 400 - tab. Detailed implementation manners

[0042] To make the objectives, technical solutions and advantages of this application clearer, the technical solutions in the embodiments of this application will be described in more detail below with reference to the accompanying drawings in the preferred embodiments of this application. In the drawings, the same or similar reference numerals denote the same or similar components or components with the same or similar functions throughout. The described embodiments are some, but not all, of the embodiments of this application. The embodiments described below with reference to the drawings are exemplary and are intended to explain this application and should not be construed as a limitation of this application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of this application without creative efforts fall within the scope of protection of this application. The embodiments of this application will be described in detail below with reference to the drawings.

[0043] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, or an indirect connection through an intermediate medium, or the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0044] In the description of this application, it should be understood that the orientation or positional relationships indicated by the terms "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships in the drawings, and are only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of this application.

[0045] The terms "first", "second", "third" (if any) in the description and claims of this application and the above - mentioned drawings are used to distinguish similar objects and do not necessarily describe a specific order or sequence.

[0046] In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or display that comprises a series of steps or units need not be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products, or displays.

[0047] Currently, when assembling and manufacturing a battery, in order to facilitate the assembly of the tabs of the battery, usually two side spacers are provided. The root of the tab is clamped by the two side spacers, so that the free part of the tab is restricted between the side spacer and the lead-out piece. In this way, even if the tab is compressed between the side spacer and the lead-out piece, it will not affect the bending angle of the tab at the top of the electrode core, avoiding the problem of short circuit caused by the contact of the positive and negative electrode plates at the bending angle of the tab.

[0048] However, since the tab has a multi-layer fluffy structure, when the spacer clamps the tab, the spacer will be subjected to an expansion force and thus undergo plastic deformation. And since the buckling position of the spacer is on both sides of the spacer, the deformation amount of the clamping position of the spacer is larger in the middle and smaller at both ends. When clamping, due to different torques, the allowable deformation amount in the middle is larger. For tabs with a thicker foil and more lamination layers, because the expansion force of the tab is too large and exceeds the maximum deformation amount on both sides of the spacer, the two sides of the spacer will be pushed open by the tab, resulting in failure.

[0049] After repeated thinking and verification, the inventor found that if the exhaust channels on the spacer are designed at the clamping positions on both sides of the spacer, not only the interval for clamping the tab on both sides of the spacer is increased, but also the clamping state in the middle of the tab clamping position is maintained, thus preventing the spacer from being bounced off due to excessive tab tension during the use of the battery, resulting in the poor failure problem of the spacer falling off. And the exhaust channels also serve as channels for injecting liquid and exhausting gas for the spacer. During thermal runaway, they help the battery exhaust internally.

[0050] In view of this, the present application provides a spacer monomer for clamping a tab. The spacer monomer includes: a clamping portion for clamping the tab; an assembling portion connected to one side of the clamping portion; and a notch provided between the clamping portion and the assembling portion for accommodating a part of the tab.

[0051] The middle part of the tab is clamped by the clamping portion, and by providing assembling portions on both sides of the clamping portion and a notch between the clamping portion and the assembling portion to accommodate the edge of the tab, the gap when the spacer buckles on both sides is increased, making the deformation amounts at each position tend to be consistent when the spacer clamps the tab, thus preventing the spacer from being bounced off due to excessive tab tension during the use of the battery, resulting in the poor failure problem of the spacer falling off. At the same time, the notch can also serve as a liquid injection channel for injecting liquid into the battery cell and an exhaust channel for exhausting gas inside the battery cell.

[0052] The content of the present application will be described in detail below in conjunction with the accompanying drawings, so that those skilled in the art can understand the content of the present application more clearly and in detail.

[0053] Figure 1 It is one of the schematic structural diagrams of the spacer monomer provided in the embodiment of the present application. Figure 2 It is Figure 1 The schematic structural diagram of the other perspective of the shown spacer monomer. Figure 3 It is the second schematic structural diagram of the spacer monomer provided in the embodiment of the present application. Figure 4 It is Figure 3 The schematic structural diagram of the other perspective of the shown spacer monomer. Figure 5 It is the schematic structural diagram of the spacer assembly provided in the embodiment of the present application. Figure 6 It is Figure 5 The exploded structural diagram of the shown spacer assembly. Figure 7 It is Figure 5 The schematic structural diagram of the other perspective of the shown spacer assembly. Figure 8 It is the schematic structural diagram of the spacer assembly and the tab provided in the embodiment of the present application. Figure 9 It is the schematic structural diagram of the spacer assembly clamping the tab provided in the embodiment of the present application. Figure 10 It is Figure 9 The schematic structural diagram of the other perspective of the shown spacer assembly clamping the tab. Figure 11 It is the deformation amount of the clamping position when the spacer assembly clamps the tab in the prior art. Figure 12 It is the deformation amount of the clamping position when the spacer assembly clamps the tab in the embodiment of the present application.

[0054] As Figure 1 and Figure 2 shown, the spacer monomer 100 provided in the embodiment of the present application is used to clamp the tab 400.

[0055] Among them, two spacer monomers 100 can be combined into a spacer assembly 200 for cooperative use to fix the tab 400 of the battery. The spacer monomer 100 can also be fixed to the tab 400 of the battery by cooperating with other structural members.

[0056] The spacer monomer 100 includes a clamping portion 10 and an assembly portion 20. The clamping portion 10 is used to clamp the middle part of the tab 400. The assembly portion 20 is connected to one side of the clamping portion 10.

[0057] The clamping portions 10 on the two spacer monomers 100 cooperate with each other to clamp the middle part of the tab 400. The assembly portion 20 includes two. The two assembly portions 20 are located on the opposite sides of the clamping portion 10. The assembly portions 20 on the two spacer monomers 100 cooperate with each other to connect and fix the two spacer monomers 100, so that the clamping portions 10 on the two spacer monomers 100 can cooperate with each other.

[0058] There is a notch 30 between the clamping part 10 and the assembling part 20. The notch 30 is used to accommodate the edge of the tab 400 when the clamping part 10 clamps the tab 400, that is, to accommodate a part of the tab 400.

[0059] The setting of the notch 30 increases the gap on both sides of the spacer monomer 100 after the spacer assembly 200 is combined, making the deformation amounts at various positions of the spacer assembly 200 tend to be consistent when clamping the tab 400. This prevents the spacer from bouncing off and falling off due to excessive tension of the tab 400 during the manufacturing process of the battery cell.

[0060] The notch 30 can also serve as a liquid injection channel for injecting liquid into the battery cell and an exhaust channel for exhausting air inside the battery cell, and helps the battery to exhaust air internally during thermal runaway.

[0061] Please refer to Figure 10 In a possible implementation, the length of the clamping part 10 is L, and the width of the tab 400 fixed by the spacer assembly 200 is X. Among them, L satisfies: 0.1X ≤ L ≤ 0.8X.

[0062] When the length of the clamping part 10 is less than 0.1X, the size of the clamping part 10 is small, and the clamping force of the clamping part 10 on the tab 400 is small, and the tab 400 cannot be fixed firmly; when the length of the clamping part 10 is greater than 0.8X, the size of the clamping part 10 is too large. When the clamping part 10 clamps both sides of the tab 400, as mentioned in the background art, the expansion force of the tab 400 is too large, which will bounce off both sides of the spacer monomer 100, resulting in failure. Therefore, while ensuring effective clamping of the tab 400, the length dimension L of the clamping part 10 also needs to ensure avoiding the areas with small deformation amounts on both sides.

[0063] Optionally, L satisfies: 0.5X ≤ L ≤ 0.8X.

[0064] The die-cut width of the tab of the blade battery is generally between 20 mm and 350 mm. Therefore, optionally, 10 mm ≤ L ≤ 280 mm.

[0065] In a possible implementation, the depth of the notch 30 on the side close to the assembling part 20 is greater than or equal to the depth of the notch 30 on the side close to the clamping part 10.

[0066] In a possible implementation, the notch 30 is a rectangular groove. The length of the notch 30 is m, and m satisfies: 5 mm ≤ m ≤ 100 mm.

[0067] When the length of the notch 30 is less than 5 mm, the size of the notch 30 is small, and the notch 30 cannot avoid the area with a small deformation amount at the fastening position of the spacer, so it cannot prevent the spacer from being bounced off by the tab 400; when the length of the notch 30 is greater than 100 mm, the size of the notch 30 is too large, and a large area on both sides of the tab 400 is accommodated, so the two sides of the tab 400 cannot be effectively clamped and fixed, and the function of the spacer for clamping and fixing the tab 400 is lost. Therefore, when the length dimension m of the notch 30 ensures avoiding the area with a small deformation amount, it is also necessary to ensure the effective clamping of both sides of the tab 400.

[0068] In a possible implementation, the depth of the notch 30 is n, and the width dimension of the spacer unit 100 is W. Among them, n satisfies: 0.5W ≤ n.

[0069] When the depth of the notch 30 is less than 0.5W, the notch 30 is too shallow, and a relatively large part of the expansion force on both sides of the tab 400 can still act on the spacer unit 100, and the two sides of the spacer unit 100 are easily bounced off, resulting in failure.

[0070] Optionally, n satisfies: 0.5W ≤ n ≤ 0.8W.

[0071] When the depth of the notch 30 is greater than 0.8W, the notch 30 is too deep, affecting the structural strength of the spacer unit 100.

[0072] The width of the blade battery is generally between 10 mm and 50 mm. The spacer unit 100 needs to be used in cooperation to clamp the tab 400. Therefore, 2.5 mm ≤ n ≤ 20 mm.

[0073] In a possible implementation, the clamping portion 10 is provided with a reinforcing rib 11. The setting of the reinforcing rib 11 can improve the structural strength of the clamping portion 10, so that the clamping portion 10 can firmly clamp the tab 400.

[0074] As Figure 3 and Figure 4 shown, in a possible implementation, the depth dimension of the notch 30 gradually decreases along the direction from the assembly portion 20 to the clamping portion 10.

[0075] Since the deformation amount at the clamping position of the spacer is large in the middle and small on both sides and changes gradually, therefore, setting the depth of the notch 30 to gradually decrease along the direction from the assembly portion 20 to the clamping portion 10 according to the change of the deformation amount can improve the bearing capacity of both sides of the spacer for the expansion force of the tab 400, thereby preventing the spacer from being bounced off by the tab 400 and failing.

[0076] In a possible implementation, the notch 30 is an inclined groove. The depth of the notch 30 continuously decreases along the direction from the assembly portion 20 to the clamping portion 10.

[0077] It can be understood that in other possible implementations, the notch 30 may also be an arc-shaped groove, a stepped groove, etc.

[0078] In a possible implementation, the spacer unit 100 further includes a fixing portion 40. The assembly portion 20 is disposed on the fixing portion 40. The fixing portion 40 is used to connect the clamping portion 10 with the assembly portion 20. The fixing portion 40 includes two fixing portions 40. The two fixing portions 40 are respectively connected to one side of the clamping portion 10.

[0079] In a possible implementation, the assembly portion 20 includes a first assembly portion 21 and a second assembly portion 22. The first assembly portion 21 and the second assembly portion 22 are respectively disposed on the fixing portion 40.

[0080] In a possible implementation, the first assembly portion 21 and the second assembly portion 22 are respectively disposed on two fixing portions 40 .

[0081] In a possible implementation, the first assembly portion 21 is a buckle, which is convexly disposed on the fixing portion 40, and the second assembly portion 22 is a slot, which is opened in the fixing portion 40. Both the buckle and the slot are disposed on one side of the fixing portion 40.

[0082] The buckles and slots on the two spacer ring units 100 are detachably connected.

[0083] In a possible implementation, a disassembly groove 41 is provided on the fixing portion 40 , and the disassembly groove 41 is communicated with the clamping groove.

[0084] By providing the disassembly groove 41 , after the buckle is connected to the slot, the buckle and the slot can be disassembled by operating in the disassembly groove 41 .

[0085] like Figure 5 As shown, in a possible implementation, a weight-reducing groove 42 is further provided on the fixing portion 40 . The weight-reducing groove 42 is provided on a side of the fixing portion 40 away from the assembly portion 20 .

[0086] The spacer monomer 100 provided in the embodiment of the present application includes a clamping portion 10 and two assembly portions 20, the clamping portions 10 cooperate with each other to clamp the pole ear 400; the two assembly portions 20 are located on opposite sides of the clamping portion 10; a notch 30 is provided between the clamping portion 10 and the assembly portion 20, and the notch 30 is used to accommodate the edge of the pole ear 400.

[0087] The tab 400 is clamped by the clamping portion 10, and by providing the assembling portions 20 on both sides of the clamping portion 10 and providing the notch 30 between the clamping portion 10 and the assembling portion 20 to accommodate the edge of the tab 400, the gap when the two sides of the spacer are buckled is increased, so that when the spacer clamps the tab 400, the deformation amounts at each position tend to be consistent, thereby preventing the spacer from being bounced off due to excessive tension of the tab 400 during the use of the battery, resulting in the problem of poor failure of the spacer falling off. At the same time, the notch 30 can also be used as a liquid injection channel for injecting liquid into the battery cell and an exhaust channel for exhausting gas inside the battery cell.

[0088] In addition, as Figure 5 and Figure 6 shown, an embodiment of the present application further provides a spacer assembly 200, including a first spacer 201 and a second spacer 202. The first spacer 201 and the second spacer 202 are the above-mentioned spacer monomers 100. The first spacer 201 and the second spacer 202 cooperate with each other to clamp the tab 400 between the first spacer 201 and the second spacer 202.

[0089] Specifically, the assembling portion 20 of the first spacer 201 is connected to the assembling portion 20 of the second spacer 202. The clamping portion 10 of the first spacer 201 and the clamping portion 10 of the second spacer 202 respectively clamp both sides of the tab 400.

[0090] In a possible implementation manner, the first assembling portion 21 and the second assembling portion 22 on the first spacer 201 and the second spacer 202 can cooperate with each other to connect the first spacer 201 and the second spacer 202.

[0091] In a possible implementation manner, the first assembling portion 21 and the second assembling portion 22 are detachably connected.

[0092] In a possible implementation manner, the first assembling portion 21 and the second assembling portion 22 are respectively provided on the two fixing portions 40 of the first spacer 201, and the second assembling portion 22 and the first assembling portion 21 are correspondingly provided on the two fixing portions 40 of the second spacer 202.

[0093] By respectively providing the first assembling portion 21 and the second assembling portion 22 on the two fixing portions 40, the structures of the first spacer 201 and the second spacer 202 can be kept consistent without distinction, which is convenient for use during assembly and improves the assembly efficiency.

[0094] In a possible implementation manner, the first assembling portion 21 is respectively provided on the two fixing portions 40 of the first spacer 201, and the second assembling portion 22 is respectively provided on the two fixing portions 40 of the second spacer 202.

[0095] In a possible implementation, second assembly parts 22 are respectively arranged on the two fixing parts 40 of the first spacer ring 201, and first assembly parts 21 are respectively arranged on the two fixing parts 40 of the second spacer ring 202.

[0096] In a possible implementation, a plurality of first assembly parts 21 and / or second assembly parts 22 may also be arranged on the fixing parts 40 of the first spacer ring 201 and the second spacer ring 202, so as to improve the connection stability between the first spacer ring 201 and the second spacer ring 202.

[0097] As Figure 7 shown, there is a gap between the clamping parts 10 on the first spacer ring 201 and the second spacer ring 202, and this gap is the buckling gap of the spacer ring assembly 200. The tab 400 is accommodated and clamped in this buckling gap. The notches 30 on the first spacer ring 201 and the second spacer ring 202 are respectively used to accommodate the edges on each side of the tab 400.

[0098] In a possible implementation, the buckling gap ≥ the thickness of the tab 400.

[0099] As Figure 8 and Figure 9 shown, place the tab 400 between the first spacer ring 201 and the second spacer ring 202, and connect the first spacer ring 201 and the second spacer ring 202 through the first assembly part 21 and the second assembly part 22, so as to clamp the tab 400 between the clamping parts 10 of the first spacer ring 201 and the second spacer ring 202.

[0100] As Figure 11 shown, it shows the deformation amount of the clamping position when the spacer ring clamps the tab in the related art. Among them, position X1 and position X5 are the two side positions where the spacer ring clamps the tab 400, position X3 is the middle position where the spacer ring clamps the tab 400, and position X2 and position X4 are the positions near the two sides where the spacer ring clamps the tab 400.

[0101] It can be seen from the figure that in the prior art, since the tab is a multi-layer fluffy structure, when the spacer ring clamps the tab, the spacer ring will be subjected to an expansion force, resulting in plastic deformation. And because the buckling position of the spacer ring is on both sides of the spacer ring, the deformation amount of the clamping position of the spacer ring shows a large middle part and small ends. When clamping, due to different torques, the allowable deformation amount in the middle is larger. For tabs with a thicker foil and more stacked layers, because the expansion force of the tab is too large, exceeding the maximum deformation amount on both sides of the spacer ring, the two sides of the spacer ring will be pushed open by the tab.

[0102] As Figure 12As shown, it shows the deformation of the clamping position of the spacer assembly when clamping the tab. Among them, position X1 and position X5 are the two sides of the spacer assembly 200 clamping the tab 400, position X3 is the middle position of the spacer assembly 200 clamping the tab 400, and position X2 and position X4 are the positions of the spacer assembly 200 clamping the tab 400 close to both sides.

[0103] As can be seen from the figure, since notches 30 are provided on both sides of the clamping portion 10 of the spacer monomer 100, the deformation of the spacer assembly 200 when clamping the tab 400 at both sides is increased, thereby preventing the tab 400 from bouncing the two sides of the spacer and causing the problem of poor spacer detachment.

[0104] The spacer assembly 200 provided in the present application clamps the tab 400 through the clamping portions 10 of the first spacer 201 and the second spacer 202, and by providing the assembly portions 20 on both sides of the clamping portion 10 and providing the notches 30 between the clamping portion 10 and the assembly portion 20 to accommodate the edges of the tab 400, the gap when the two sides of the spacer are buckled is increased, so that when the spacer clamps the tab 400, the deformation of each position tends to be consistent, thereby preventing the spacer from being bounced off due to excessive tension of the tab 400 during the use of the battery, resulting in the problem of poor spacer detachment and failure. At the same time, the notch 30 can also be used as a liquid injection channel for injecting liquid into the battery cell and an exhaust channel for exhausting gas inside the battery cell.

[0105] In addition, the embodiment of the present application also provides a battery, including a tab 400 and the above-mentioned spacer assembly 200. The tab 400 is clamped between the clamping portion 10 of the first spacer 201 and the clamping portion 10 of the second spacer 202.

[0106] Among them, the specific structure, working principle and function of the spacer assembly 200 have been described in detail in the foregoing embodiments, and will not be elaborated here.

[0107] In addition, the embodiment of the present application also provides a battery device, including at least one of the above-mentioned batteries.

[0108] Multiple batteries are connected in series or in parallel in the battery device.

[0109] Among them, the battery device can be an energy storage device such as a battery pack or a battery cabinet.

[0110] In addition, the embodiment of the present application also provides an electrical device, including the above-mentioned battery device, or including the above-mentioned battery. The electrical device further includes an electrical device. The battery device is used to provide electrical energy for the electrical device.

[0111] Among them, the electrical device can be a 3C electronic device, a new energy vehicle, an electric bicycle, etc.

[0112] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some 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.

Claims

1. A spacer ring monomer for clamping a tab (400), characterized in that: The spacer monomer (100) comprises: A clamping portion (10), the clamping portion (10) being used to clamp the tab (400); An assembly portion (20), the assembly portion (20) being connected to one side of the clamping portion (10); A notch (30) is provided between the clamping portion (10) and the assembly portion (20), and the notch (30) is used to accommodate a portion of the tab (400).

2. The spacer monomer according to claim 1, characterized in that: The assembly parts (20) include two, and the two assembly parts (20) are located on opposite sides of the clamping part (10).

3. The spacer monomer according to claim 1, characterized in that: The length of the clamping portion (10) is L, and the width of the tab is X, wherein L satisfies: 0.1X≤L≤0.8X.

4. The spacer monomer according to claim 3, characterized in that: L satisfies: 0.5X≤L≤0.8X.

5. The spacer monomer according to claim 1, characterized in that: The length of the notch (30) is m, wherein m satisfies: 5mm≤m≤100mm.

6. The spacer monomer according to claim 1, characterized in that: The depth of the notch (30) is n, and the width of the spacer ring unit (100) is W, wherein n satisfies: 0.5W≤n.

7. The spacer monomer according to claim 6, characterized in that: n satisfies: 0.5W≤n≤0.8W.

8. The spacer monomer according to claim 1, characterized in that: The depth of the notch (30) on a side close to the assembly portion (20) is greater than the depth of the notch (30) on a side close to the clamping portion (10).

9. The spacer monomer according to claim 8, characterized in that: Along the direction from the assembly portion (20) to the clamping portion (10), the depth of the notch (30) gradually decreases.

10. The spacer monomer according to claim 1, characterized in that: The spacer ring monomer (100) further comprises a fixing portion (40), wherein the fixing portion (40) is connected to one side of the clamping portion (10), and the assembly portion (20) is arranged on the fixing portion (40).

11. A spacer assembly, characterized in that: It comprises a first spacer (201) and a second spacer (202), wherein the first spacer (201) and the second spacer (202) are the spacer monomers (100) as described in any one of claims 1 to 10, and the assembly portion (20) of the first spacer (201) and the assembly portion (20) of the second spacer (202) are connected to each other, so that the clamping portion (10) of the first spacer (201) and the clamping portion (10) of the second spacer (202) are respectively clamped on both sides of the pole ear (400).

12. The spacer assembly according to claim 11, characterized in that The assembly portion (20) comprises a first assembly portion (21) and a second assembly portion (22), the first spacer (201) is provided with the first assembly portion (21), and the second spacer (202) is correspondingly provided with the second assembly portion (22) connected to the first assembly portion (21); and / or The first spacer (201) is provided with the second assembly portion (22), and the second spacer (202) is correspondingly provided with the first assembly portion (21) connected to the second assembly portion (22).

13. The spacer assembly according to claim 12, characterized in that The first assembly part (21) and the second assembly part (22) are detachably connected.

14. The spacer assembly according to claim 12, characterized in that The first assembly portion (21) is a buckle, and the second assembly portion (22) is a slot.

15. A battery, characterized in that: A spacer assembly (200) comprising a pole lug (400) and any one of claims 11 to 14, wherein the pole lug (400) is clamped between the clamping portion (10) of the first spacer (201) and the clamping portion (10) of the second spacer (202).

16. A battery device, characterized in that: Comprising at least one battery as claimed in claim 15.

17. An electrical equipment, characterized in that: A battery device comprising the battery device of claim 16, or comprising at least one battery of claim 15.

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