Battery and electric device

Abstract

The utility model relates to the technical field of batteries, in particular to a battery and an electric device. The battery comprises an insulating patch and at least two battery cells, each battery cell comprises a shell with an opening and an end cover, the end covers are arranged at the openings, the end covers of the at least two battery cells are arranged in the first direction and jointly form a to-be-pasted surface, and the insulating patch comprises a patch body and a connecting part connected to the side edge of the patch body; the patch main body is attached to the to-be-pasted surface, and the connecting part is attached to the side surface of the shell, so that the pasting area of the patch main body is greatly increased, the side edge of the patch main body is prevented from being warped, the patch main body is prevented from falling off, the insulating property of the end cover of the battery is ensured, and the working safety performance of the battery is improved; and the insulating patches can also play a role in protection, so that the condition that the end cover is abraded or scratched is improved. The battery is applied to the power utilization device, so that a good power supply effect of the battery on the power utilization mechanism can be ensured, and the service life and the safety performance of the power utilization device are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, in particular to a battery and an electrical device. Background Art

[0002] Battery cells are widely used in electronic devices such as mobile phones, laptops, electric bicycles, electric cars, electric airplanes, electric boats, electric toy cars, electric toy boats, electric toy planes, and power tools. During the production process, the sides and bottom of the battery cell casings must be coated or sprayed with insulating material, and the end caps must be affixed with insulating patches to ensure the cell's insulation performance.

[0003] Since the voltage or capacity of the battery cell is relatively low, multiple battery cells are generally used in the form of a battery to provide a corresponding voltage or current for use at the load end.

[0004] During the battery cell manufacturing process and subsequent grouping process, problems such as the insulating patches at the battery cell end covers curling up and falling off frequently occur, resulting in the failure of the insulation protection at the battery cell end covers, increasing the short circuit risk of the battery cells, significantly reducing the working safety performance of the battery cells, and seriously affecting the insulation effect of the battery cells and the production efficiency of the battery.

[0005] Therefore, there is an urgent need for a battery and an electrical device to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide a battery and an electrical device, which can greatly increase the pasting area of ​​the insulating patch, prevent the insulating patch from falling off, ensure the insulation performance of the end cover of the battery, and improve the working safety performance of the battery; the insulating patch can also play a protective role and improve the wear or scratching of the end cover.

[0007] To achieve the above objectives, the following technical solutions are provided:

[0008] Batteries, including:

[0009] At least two battery cells are arranged along a first direction, the battery cells comprising a housing having an opening and an end cover, the end cover being disposed at the opening, the end covers of at least two battery cells being arranged along the first direction and jointly constituting a surface to be laminated; and

[0010] The insulating patch includes a patch body and a connecting portion connected to the side of the patch body, the patch body is in contact with the surface to be pasted, and the connecting portion is attached to the side of the shell.

[0011] As an optional solution, the patch body includes a first side edge and a second side edge that are adjacent to each other, the shell includes a first side surface and a second side surface that are adjacent to each other, and the connecting portion includes:

[0012] A first connecting portion connected to the first side edge and in contact with the first side surface; and

[0013] The second connecting part includes a second connecting part body and an overlapping part. The second side, the second connecting part body and the overlapping part are connected in sequence. The second connecting part body is in contact with the second side, and the overlapping part is in contact with the first connecting part.

[0014] As an optional solution, there are two first sides, which are arranged at intervals along the second direction; there are two second sides, which are arranged at intervals along the first direction; and the first direction and the second direction are perpendicular to each other.

[0015] As an optional solution, the first connecting portion is in the shape of an elongated strip, the length direction of the first connecting portion extends along the extension direction of the first side, the width direction dimension of the first connecting portion is a first dimension L1, and the first dimension L1 is greater than or equal to 2.5 mm and less than or equal to 10 mm.

[0016] As an optional solution, a maximum dimension of the overlapping portion along the width direction of the first connecting portion is L5, and L5 is smaller than or equal to L1.

[0017] As an optional solution, the second connecting part body is in the shape of an elongated strip, the length direction of the second connecting part body extends along the extension direction of the second side, the width direction dimension of the second connecting part body is a second dimension L2, and the second dimension L2 is greater than or equal to 2.5 mm and less than or equal to 10 mm.

[0018] As an optional solution, the overlapping portion and the second connecting portion body are arranged along the extension direction of the second side edge. When the insulating patch is in the unfolded state, the overlapping portion and the adjacent first connecting portion are spaced apart along the width direction of the second connecting portion body.

[0019] As an optional solution, the overlapping portion includes a transition portion and a protruding portion, the second connecting portion body, the transition portion and the protruding portion are connected in sequence, and the dimension of the transition portion along the extension direction of the first side is a third dimension L3, and the third dimension L3 is greater than or equal to 0.2 mm and less than or equal to 0.3 mm; and / or

[0020] A dimension of the transition portion along the extending direction of the second side is a fourth dimension L4, and the fourth dimension L4 is greater than or equal to 3 mm and less than or equal to 6 mm.

[0021] As an optional solution, the insulating patch is integrally formed.

[0022] The power-consuming device includes a power-consuming mechanism and the above-mentioned battery, wherein the battery is configured to provide electrical energy to the power-consuming mechanism.

[0023] Compared with the prior art, the beneficial effects of the present invention are:

[0024] The battery provided by the present invention includes at least two battery cells and an insulating patch, at least two battery cells are arranged along a first direction, the battery cells include a shell with an opening and an end cover, the end cover is arranged on the opening, the end covers of at least two battery cells are arranged along the first direction and together constitute a covering surface to be pasted, the insulating patch includes a patch body and a connecting portion connected to the side of the patch body, the patch body is fitted with the covering surface to be pasted, the connecting portion is attached to the side of the shell, after at least two battery cells are stacked, the patch body is attached as a whole to the covering surface to be pasted, which can greatly increase the pasting area of ​​the patch body, prevent the patch body from falling off, ensure the insulation performance of the end cover of the battery, and improve the working safety performance of the battery; by attaching the connecting portion to the side of the shell, it can effectively restrain the outer peripheral side of the patch body, thereby more effectively preventing the side of the patch body from warping, and further preventing the patch body from detaching from the battery; the insulating patch can also play a protective role, improving the situation where the end cover is worn or scratched.

[0025] The electric device provided by the utility model can ensure a good power supply effect of the battery to the electric mechanism by applying the above-mentioned battery, thereby ensuring the service life and safety performance of the electric device. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0027] Figure 1 A schematic diagram of a portion of the structure of a battery provided in an embodiment of the present utility model;

[0028] Figure 2 A schematic diagram of the structure of a battery cell provided in an embodiment of the present utility model;

[0029] Figure 3 A schematic diagram of the structure of a battery provided in an embodiment of the present utility model;

[0030] Figure 4 A schematic structural diagram of an insulating patch provided in an embodiment of the present utility model;

[0031] Figure 5 for Figure 4 A partial enlarged view of point A in the middle;

[0032] Figure 6 A schematic diagram of a vehicle provided in an embodiment of the present utility model.

[0033] Reference numerals:

[0034] 1000. Vehicle;

[0035] 100, battery; 200, controller; 300, motor;

[0036] 10. Insulating patch; 11. Patch body; 111. First avoidance space; 112. Second avoidance space; 113. Positive electrode identifier; 114. Negative electrode identifier; 115. First side edge; 116. Second side edge; 12. Connecting portion; 121. First connecting portion; 122. Second connecting portion; 1221. Second connecting portion body; 1222. Overlapping portion; 12221. Transition portion; 12222. Protruding portion; 13. Crease line;

[0037] 20. Battery cell; 21. Shell; 211. Side; 2111. First side; 2112. Second side; 212. Opening; 22. End cap; 23. Insulating film; 24. Positive electrode; 25. Negative electrode; 26. Explosion-proof mechanism. DETAILED DESCRIPTION

[0038] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0039] In the description of this application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing this application and simplifying the description, and does 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 this application.

[0040] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include at least one of such features. In the description of this application, if the term "plurality" appears, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0041] In this application, unless otherwise specified or limited, the terms "mounted," "connected," "connected," "fixed," etc., should be interpreted broadly. For example, these terms may refer to fixed connections, removable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediary; and internal communication between two components or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0042] In this application, unless otherwise expressly specified or limited, if a first feature is described as being "above" or "below" a second feature, or similar descriptions, this may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is described as being "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is described as being "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0043] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only embodiment.

[0044] like Figure 1 As shown, this embodiment provides a battery 100 including seven battery cells 20 arranged along a first direction. The seven battery cells 20 are connected in series, in parallel, or in a mixed connection. Mixed connection means that the seven battery cells 20 are connected in both series and in parallel. In other embodiments, the number of battery cells 20 can be two, three, or more, and can be adaptively selected according to actual needs.

[0045] It should be noted that the battery 100 mentioned in this embodiment refers to a single physical module including multiple battery cells 20 to provide higher voltage and capacity. For example, the battery 100 mentioned in this application may include a battery module or a battery pack.

[0046] The battery 100 may also include other structures. For example, the battery 100 may also include a busbar component for electrically connecting the multiple battery cells 20. Each battery cell 20 may be a secondary battery 100 or a primary battery 100; it may also be a lithium-sulfur battery 100, a sodium-ion battery 100, or a magnesium-ion battery 100, but is not limited thereto. The battery cell 20 may be cylindrical, flat, rectangular, or have other shapes.

[0047] like Figure 2 As shown, the battery cell 20 provided in this embodiment includes a housing 21, an end cap 22, and an electrode assembly. The housing 21 has a receiving cavity and an opening 212 communicating with the receiving cavity. The end cap 22 covers the opening 212 to form a sealed space for accommodating the electrode assembly and electrolytes. The electrode assembly consists of a positive electrode sheet, a negative electrode sheet, and a separator. The battery cell 20 primarily operates by the movement of metal ions between the positive and negative electrode sheets.

[0048] In this embodiment, the housing 21 is provided with two openings 212, and two end caps 22 are provided accordingly, and the two openings 212 are respectively located at the two ends of the housing 21 along the third direction. In other embodiments, the opening 212 can also be provided with one, three, or more openings, which can be adaptively selected according to actual needs.

[0049] like Figure 2 As shown, the battery cell 20 also includes electrode terminals, which include a positive electrode column 24 and a negative electrode column 25 with opposite polarities. The positive electrode column 24 and the negative electrode column 25 are both arranged on the end cover 22. The positive electrode column 24 and the negative electrode column 25 are respectively located at the two ends of the shell 21 along the third direction. The positive electrode column 24 is connected to the positive electrode sheet of the electrode assembly, and the negative electrode column 25 is connected to the negative electrode sheet of the electrode assembly. The positive electrode column 24 and the negative electrode column 25 are connected to the power-consuming mechanism to realize the power supply function of the electrode assembly to the power-consuming mechanism.

[0050] like Figure 2 As shown, the battery cell 20 further includes an explosion-proof mechanism 26, which is disposed on the end cap 22 where the positive electrode 24 is located. When the internal pressure of the battery cell 20 reaches a predetermined threshold, the explosion-proof mechanism 26 releases the internal pressure, thereby improving the safety of the battery cell 20. In other embodiments, the explosion-proof mechanism 26 may also be disposed on the end cap 22 where the negative electrode 25 is located, which is not specifically limited here.

[0051] Specifically, the explosion-proof mechanism 26 includes an explosion-proof valve and a protective sheet. An explosion-proof hole is provided on the end cap 22, and the explosion-proof valve is welded into the hole. During use, when gas is generated within the housing 21 and the air pressure within the housing 21 reaches the explosion-proof threshold of the explosion-proof valve, the explosion-proof valve ruptures, and the gas is discharged from the explosion-proof hole, releasing the internal pressure of the housing 21 and thus preventing the housing 21 from bursting. The protective sheet is disposed within the explosion-proof hole and on the side of the explosion-proof valve away from the electrode assembly. The protective sheet is used to protect the explosion-proof valve and prevent it from rupturing and failing due to external pressure from the battery cell 20.

[0052] Optionally, the shell 21 of the battery cell 20 is coated with an insulating film 23 or sprayed with insulating material, and an insulating patch 10 is provided on the end cover 22 of the battery cell 20 to ensure the insulation performance of the battery cell 20 .

[0053] During the manufacturing process of the battery cell 20 and the subsequent grouping process, the problem of the insulating patch 10 at the end cover 22 of the battery cell 20 curling up or falling off frequently occurs, resulting in the failure of the insulation protection at the end cover 22 of the battery cell 20, increasing the short circuit risk of the battery cell 20, and greatly reducing the working safety performance of the battery cell 20, seriously affecting the insulation effect of the battery cell 20 and the production efficiency of the battery 100.

[0054] In order to solve the above problems, Figure 3-Figure 5 As shown, the insulating patch 10 of the battery 100 provided in this embodiment includes a patch body 11 and a connecting portion 12 connected to the side of the patch body 11, and the end covers 22 of the seven battery cells 20 are arranged along the first direction and together constitute a covering surface to be attached. The patch body 11 is attached to the covering surface to be attached, and the connecting portion 12 is attached to the side 211 of the shell 21. The battery 100 provided in the embodiment of the present application, after at least two battery cells 20 are stacked, the patch body 11 is attached as a whole to the surface to be attached, which can greatly increase the attachment area of ​​the patch body 11, prevent the patch body 11 from falling off, ensure the insulation performance of the end cover 22 of the battery 100, and improve the working safety performance of the battery 100; by attaching the connecting portion 12 to the side surface 211 of the shell 21, it can effectively restrain the outer peripheral side of the patch body 11, thereby more effectively preventing the side of the patch body 11 from warping, and further preventing the patch body 11 from detaching from the battery 100; the insulating patch 10 can also play a protective role, improving the wear or scratching of the end cover 22.

[0055] Specifically, the patch body 11 includes a first side 115 and a second side 116 that are adjacent to each other, the shell 21 includes a first side 2111 and a second side 2112 that are adjacent to each other, and the connecting portion 12 includes a first connecting portion 121 and a second connecting portion 122: the first connecting portion 121 is connected to the first side 115 and fits with the first side 2111; the second connecting portion 122 includes a second connecting portion body 1221 and a lap portion 1222, the second side 116, the second connecting portion body 1221 and the overlapping portion 1222 are connected in sequence, the second connecting portion main body 1221 is fitted with the second side surface 2112, and the overlapping portion 1222 is fitted with the first connecting portion 121. By setting the first connecting portion 121 and the second connecting portion 122, the side of the patch body 11 is further prevented from warping. By setting the overlapping portion 1222 to fit with the first connecting portion 121, the first connecting portion 121 is prevented from warping, thereby improving the stability of the connection between the insulating patch 10 and the battery cell 20.

[0056] Optionally, two first sides 115 are provided, and the two first sides 115 are arranged at intervals along the second direction; two second sides 116 are provided, and the two second sides 116 are arranged at intervals along the first direction, which can further prevent the sides of the patch body 11 from warping up, and further prevent the patch body 11 from detaching from the battery 100.

[0057] Optionally, the insulating patch 10 is bonded to the end cover 22 and / or the housing 21 by adhesive, so as to facilitate rapid attachment of the insulating patch 10 to the end cover 22 .

[0058] like Figure 4 and Figure 5 As shown, the first connecting portion 121 is in the shape of an elongated strip, and the length direction of the first connecting portion 121 extends along the extension direction of the first side 115. The dimension of the first connecting portion 121 in the width direction is a first dimension L1, and the first dimension L1 is greater than or equal to 2.5 mm and less than or equal to 10 mm. The range of the dimension L1 in the width direction of the first connecting portion 121 is controlled within the range of greater than or equal to 2.5 mm and less than or equal to 10 mm, so that the patch body 11 can be better connected to all the end covers 22 of the battery 100, while also saving the material cost of the insulating patch 10, avoiding the problem of unstable connection of the patch body 11 caused by the first connecting portion 121 being too small, and avoiding the problem of material waste caused by the first connecting portion 121 being too large.

[0059] For example, the width dimension L1 of the insulating patch 10 can be 2.5 mm, 3 mm, 3.5 mm, 4 mm, 4.5 mm, 5 mm, 5.5 mm, 6 mm, 6.5 mm, 7 mm, 7.5 mm, 8 mm, 8.5 mm, 9 mm, 9.5 mm, or 10 mm. In other embodiments, the range of L1 is not limited to the above range and can be adjusted according to needs.

[0060] Optionally, the maximum dimension of the overlapping portion 1222 along the width direction of the first connecting portion 121 is L5, and L5 is less than or equal to L1, which is convenient for die-cutting an insulating patch 10 with a whole sheet of material, thereby improving material utilization. When L5 is equal to L1, the dimension of the overlapping portion 1222 along the width direction of the first connecting portion 121 is the largest, which is convenient for the staff to stick the overlapping portion 1222 on the first side surface 2111.

[0061] Optionally, the insulating patch 10 is integrally formed, so that the insulating patch 10 has higher strength.

[0062] Optionally, the second connection part body 1221 is in the shape of an elongated strip, and the length direction of the second connection part body 1221 extends along the extension direction of the second side 116. The dimension of the second connection part body 1221 in the width direction is a second dimension L2, and the second dimension L2 is greater than or equal to 2.5 mm and less than or equal to 10 mm. The range of the dimension L2 in the width direction of the second connection part body 1221 is controlled within the range of greater than or equal to 2.5 mm and less than or equal to 10 mm, so that the patch body 11 can be further better connected to all the end covers 22 of the battery 100, while also saving the material cost of the insulating patch 10, avoiding the problem of unstable connection of the patch body 11 caused by the width of the second connection part body 1221 being too small, and avoiding the problem of material waste caused by the width of the second connection part body 1221 being too large.

[0063] For example, the width dimension L2 of the second connecting portion body 1221 can be 2.5 mm, 3 mm, 3.5 mm, 4 mm, 4.5 mm, 5 mm, 5.5 mm, 6 mm, 6.5 mm, 7 mm, 7.5 mm, 8 mm, 8.5 mm, 9 mm, 9.5 mm, or 10 mm. In other embodiments, the range of L2 is not limited to the above range and can be adjusted as needed.

[0064] Optionally, the overlapping portion 1222 and the second connection portion body 1221 are arranged along the extension direction of the second side 116. When the insulating patch 10 is in the unfolded state, the overlapping portion 1222 and the adjacent first connection portion 121 are spaced apart along the width direction of the second connection portion body 1221. By spacing the overlapping portion 1222 and the adjacent first connection portion 121 along the width direction of the second connection portion body 1221, when the first connection portion 121 is attached to the second side 2112, the overlapping portion 1222 can form a transition between the end cover 22 and the first side 2111, and the overlapping portion 1222 can form a transition between the first side 2111 and the second side 2112.

[0065] Optionally, the overlapping portion 1222 includes a transition portion 12221 and a protruding portion 12222, and the second connecting portion body 1221, the transition portion 12221 and the protruding portion 12222 are connected in sequence, and the dimension of the transition portion 12221 along the extension direction of the first side edge 115 is a third dimension L3, and the third dimension L3 is greater than or equal to 0.2 mm and less than or equal to 0.3 mm; and / or, the dimension of the transition portion 12221 along the extension direction of the second side edge 116 is a fourth dimension L4, and the fourth dimension L4 is greater than or equal to 3 mm and less than or equal to 6 mm, so that the overlapping portion 1222 is better adhered to the first side surface 2111.

[0066] For example, the dimension L3 of the transition portion 12221 along the extension direction of the first side 115 can be 0.21 mm, 0.22 mm, 0.23 mm, 0.24 mm, 0.25 mm, 0.26 mm, 0.27 mm, 0.28 mm, 0.29 mm, or 0.3 mm. In other embodiments, the range of L3 is not limited to the above range and can be adjusted according to needs.

[0067] The dimension L4 of the transition portion 12221 along the extension direction of the second side 116 can be 3 mm, 4 mm, 5 mm, or 6 mm. In other embodiments, the range of L4 is not limited to the above range and can be adjusted according to needs.

[0068] like Figure 4 As shown, a crease line 13 is provided between the connection portion 12 and the patch body 11 to facilitate bending of the connection portion 12. Optionally, the crease line 13 includes multiple through holes, which are sequentially spaced along the length of the crease. Alternatively, the crease line 13 includes multiple recesses, which are sequentially spaced or continuously spaced along the length of the crease line 13, further improving the convenience of bending the connection portion 12.

[0069] like Figure 3 and Figure 4As shown, the insulating patch 10 is provided with a first avoidance space 111, and at least part of the electrode terminals are accommodated in the first avoidance space 111 to prevent the insulating patch 10 from interfering with the electrode terminals. Specifically, the first avoidance space 111 can be a notch or a through hole.

[0070] like Figure 3 and Figure 4 As shown, the insulating patch 10 is provided with a second avoidance space 112, and at least part of the explosion-proof mechanism 26 is accommodated in the second avoidance space 112 to prevent the insulating patch 10 from interfering with the explosion-proof mechanism 26. Specifically, the second avoidance space 112 can be a notch or a through hole.

[0071] Each battery cell 20 is provided with an electrode terminal at one end along the second direction, and each electrode terminal corresponds one-to-one to a first avoidance space 111, and at least two first avoidance spaces 111 are arranged at intervals along the first direction; and / or, the second avoidance spaces 112 are set to at least two, and at least two second avoidance spaces 112 are arranged at intervals along the first direction, so as to achieve avoidance of all multiple motor terminals and / or multiple explosion-proof mechanisms 26 located on the same side of the second direction of the battery 100, and each first avoidance space 111 and each second avoidance space 112 are solid structures, which facilitates further increasing the fitting area between the insulating patch 10 and the covering surface to be attached, and helps to further improve the stability of the connection between the insulating patch 10 and the covering surface to be attached.

[0072] Optionally, a positive pole mark 113 and / or a negative pole mark 114 is provided on the insulating patch 10 to facilitate staff to quickly distinguish the positive pole and the negative pole of the battery cell 20 .

[0073] Optionally, the positive electrode mark 113 and / or the negative electrode mark 114 are formed by die cutting or laser engraving. Die cutting has the advantages of high production efficiency and low production cost; laser engraving has the advantages of high production efficiency, stable processing quality and high reliability.

[0074] In this embodiment, the thickness of the insulating patch 10 is 0.1mm-0.15mm. The thickness range of the insulating patch 10 is controlled within 0.1mm-0.15mm, so that the insulating patch 10 has better insulation performance, while preventing the insulating patch 10 from being too thick, thereby saving the material cost of the insulating patch 10.

[0075] In an optional embodiment, the thickness of the insulating patch 10 may be 0.11 mm, 0.12 mm, 0.13 mm or 0.15 mm.

[0076] Optionally, the insulating patch 10 is made of PC (Polycarbonate), PE (Polyethylen), PVC (Polyethylene), PPS (Phenylenesulfide), PET (Polyethyleneterephthalate), PP (Polypropylene), nylon and ABS (AcrylonitrileButadieneStyreneplastic). The above materials have good insulation properties and are relatively low in price, which helps to reduce production costs.

[0077] This embodiment also provides an electrical device, which includes the above-mentioned battery 100 and an electrical mechanism. The battery 100 can provide electrical energy to the electrical mechanism, thereby enabling the electrical mechanism to automatically complete preset actions through electrical energy, ensuring good performance of the electrical mechanism and ensuring the service life and safety performance of the electrical device.

[0078] Specifically, the power-consuming mechanism may be a vehicle, a mobile phone, a portable device, a laptop computer, a ship, a spacecraft, an electric toy, or an electric tool. A vehicle may be a fuel-powered vehicle, a gas-powered vehicle, or a new energy vehicle; a new energy vehicle may be a pure electric vehicle or a hybrid vehicle; a spacecraft may include an airplane, a rocket, a space shuttle, and a spacecraft; an electric toy may include a fixed or mobile electric toy, such as a game console, an electric car toy, an electric ship toy, and an electric airplane toy; and an electric tool may include a metal cutting power tool, a grinding power tool, an assembly power tool, and a railway power tool, such as an electric drill, an electric grinder, an electric wrench, an electric screwdriver, an electric hammer, an impact drill, a concrete vibrator, or an electric planer. This embodiment does not limit the above-mentioned power-consuming mechanisms.

[0079] The following examples are for convenience of description. Figure 6 As shown, an electric device according to an embodiment of the present application is taken as an example of a vehicle 1000 for description. A battery 100 is provided inside the vehicle 1000, and the battery 100 can be provided at the bottom, head, or tail of the vehicle 1000. The battery 100 can be used to power the vehicle 1000. For example, the battery 100 can be used as an operating power source for the vehicle 1000. The vehicle 1000 may further include a controller 200 and a motor 300. The controller 200 is used to control the battery 100 to power the motor 300, for example, to meet the power requirements of the vehicle 1000 during startup, navigation, and driving.

[0080] In some embodiments of the present application, the battery 100 can serve not only as an operating power source for the vehicle 1000 , but also as a driving power source for the vehicle 1000 , replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1000 .

[0081] Note that throughout this specification, references to terms such as "some embodiments" and "other embodiments" indicate that the specific features, structures, materials, or characteristics described in conjunction with those embodiments or examples are included in at least one embodiment or example of the present invention. Throughout this specification, the schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be incorporated in any suitable manner in any one or more embodiments or examples.

[0082] The above are merely preferred embodiments of the present invention and the technical principles employed. Those skilled in the art will appreciate that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments, and substitutions are readily apparent to those skilled in the art without departing from the scope of the present invention. Therefore, while the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments and may include other equivalent embodiments without departing from the spirit of the present invention. The scope of the present invention is determined by the appended claims.

Claims

1. A battery, characterized in that include: At least two battery cells (20) are arranged along a first direction, the battery cells (20) comprising a shell (21) having an opening (212) and an end cover (22), the end cover (22) being arranged at the opening (212), and the end covers (22) of at least two battery cells (20) being arranged along the first direction and jointly forming a surface to be attached; as well as An insulating patch (10) includes a patch body (11) and a connecting portion (12) connected to a side of the patch body (11); the patch body (11) is in contact with the surface to be pasted, and the connecting portion (12) is attached to a side surface (211) of the housing (21).

2. The battery according to claim 1, characterized in that The patch body (11) includes a first side edge (115) and a second side edge (116) that are adjacently arranged, the housing (21) includes a first side surface (2111) and a second side surface (2112) that are adjacently arranged, and the connecting portion (12) includes: A first connecting portion (121) connected to the first side edge (115) and in contact with the first side surface (2111); and The second connecting part (122) includes a second connecting part body (1221) and a lap part (1222); the second side (116), the second connecting part body (1221) and the lap part (1222) are connected in sequence; the second connecting part body (1221) is in contact with the second side (2112); and the lap part (1222) is in contact with the first connecting part (121).

3. The battery according to claim 2, characterized in that The number of the first side edges (115) is two, and the two first side edges (115) are arranged at intervals along the second direction; the number of the second side edges (116) is two, and the two second side edges (116) are arranged at intervals along the first direction; the first direction and the second direction are perpendicular to each other.

4. The battery according to claim 2, characterized in that The first connecting portion (121) is in the shape of an elongated strip, the length direction of the first connecting portion (121) extends along the extension direction of the first side (115), the width direction dimension of the first connecting portion (121) is a first dimension L1, and the first dimension L1 is greater than or equal to 2.5 mm and less than or equal to 10 mm.

5. The battery according to claim 4, characterized in that The maximum dimension of the overlapping portion (1222) along the width direction of the first connecting portion (121) is L5, and the L5 is less than or equal to the L1.

6. The battery according to claim 2, characterized in that The second connection part body (1221) is in the shape of an elongated strip, and the length direction of the second connection part body (1221) extends along the extension direction of the second side (116). The width direction dimension of the second connection part body (1221) is a second dimension L2, and the second dimension L2 is greater than or equal to 2.5 mm and less than or equal to 10 mm.

7. The battery according to claim 2, characterized in that The overlapping portion (1222) and the second connecting portion body (1221) are arranged along the extension direction of the second side edge (116); when the insulating patch (10) is in the unfolded state, the overlapping portion (1222) and the adjacent first connecting portion (121) are spaced apart along the width direction of the second connecting portion body (1221).

8. The battery according to claim 7, characterized in that The overlapping portion (1222) includes a transition portion (12221) and a protruding portion (12222); the second connecting portion body (1221), the transition portion (12221) and the protruding portion (12222) are sequentially connected; the dimension of the transition portion (12221) along the extension direction of the first side edge (115) is a third dimension L3, and the third dimension L3 is greater than or equal to 0.2 mm and less than or equal to 0.3 mm; and / or The dimension of the transition portion (12221) along the extension direction of the second side (116) is a fourth dimension L4, and the fourth dimension L4 is greater than or equal to 3 mm and less than or equal to 6 mm.

9. The battery according to claim 1, characterized in that The insulating patch (10) is integrally formed.

10. An electrical device, characterized in that: The invention comprises a power-consuming mechanism and a battery as claimed in any one of claims 1 to 9, wherein the battery is configured to provide electrical energy to the power-consuming mechanism.

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