Battery and electric device

Abstract

The utility model relates to a battery and an electric device. The battery comprises a battery cell which is convexly provided with a battery cell positive electrode and a battery cell negative electrode; the confluence component comprises a confluence positive electrode and a confluence negative electrode, the confluence positive electrode is detachably connected with the battery cell positive electrode, the confluence negative electrode is detachably connected with the battery cell negative electrode, and the confluence positive electrode and the confluence negative electrode are connected together in a concave-convex matched clamping mode; the confluence positive electrode and the confluence negative electrode are opposite in concave-convex mode. According to the battery and the power utilization device provided by the invention, the battery cell positive electrode and the battery cell negative electrode of the battery cell can be conveniently and quickly assembled and disassembled with the confluence component.

Description

Technical Field

[0001] This application relates to the technical field of batteries, and particularly to a battery and an electrical device using the same. Background Art

[0002] As a core component for energy storage and conversion, batteries have been widely used in new energy vehicles, energy storage power stations and other fields. Taking the application of batteries in new energy vehicles as an example, as is well known, the current generated by the battery reaches the vehicle driving unit through the busbar component and the high-voltage plug-in, so as to drive the vehicle to run. However, the low welding efficiency and poor welding rate between the positive electrode and the negative electrode of the battery cell and the busbar component seriously restrict the production process of the battery system, and when the busbar component is disassembled after welding, only destructive disassembly can be carried out, resulting in a large amount of waste of parts. At this time, there is an urgent need to study a structure that facilitates the rapid assembly and disassembly of the positive electrode and the negative electrode of the battery cell and the busbar component. Summary of the Utility Model

[0003] Based on this, in view of the above problems, it is necessary to provide a battery and an electrical device using the same that can facilitate the rapid assembly and disassembly of the positive electrode and the negative electrode of the battery cell and the busbar component.

[0004] A battery, the battery comprising: a battery cell, protruding with a positive electrode and a negative electrode of the battery cell; and a busbar component, including a positive busbar and a negative busbar, the positive busbar being detachably connected to the positive electrode of the battery cell, and the negative busbar being detachably connected to the negative electrode of the battery cell, both being connected together by a snap-fit connection with concave-convex cooperation; wherein, the positive busbar and the negative busbar have opposite concavities and convexities.

[0005] In some embodiments, the positive busbar is provided with a concave portion, the positive electrode of the battery cell is provided with a convex portion, and the concave portion on the positive busbar is in concave-convex cooperation with the convex portion on the positive electrode of the battery cell; the negative busbar is provided with a convex portion, the negative electrode of the battery cell is provided with a concave portion, and the convex portion on the negative busbar is in concave-convex cooperation with the concave portion on the negative electrode of the battery cell.

[0006] In some embodiments, the positive busbar is columnar, and a slot is formed on the positive busbar, and the slot is configured to form the concave portion on the positive busbar; the positive electrode of the battery cell includes a positive electrode substrate of the battery cell and a positive electrode stud protruding from the positive electrode substrate of the battery cell, and the positive electrode stud is configured to form the convex portion of the positive electrode of the battery cell, and the positive electrode stud is inserted into and limited in the slot; a plurality of protrusions protrude from the inner wall of the slot, and all the protrusions are arranged around the circumference of the positive electrode stud and are latched with the positive electrode stud.

[0007] In some of these embodiments, the slot is a stepped slot and includes a first section and a second section that communicate with each other. The opening of the second section away from the first section forms the notch of the slot. The cross-sectional area of the second section is larger than that of the first section, and the protrusion is located within the second section; the positive electrode stud of the battery cell includes a main body portion and a limiting portion. The main body portion is limited within the first section. The limiting portion protrudes from the peripheral sidewall of the main body portion and is disposed around the outer periphery of the main body portion. The limiting portion is located within the second section and engages with the protrusion.

[0008] In some of these embodiments, the negative electrode of the battery cell is columnar, and a jack is formed in the negative electrode of the battery cell. The jack forms a recess on the negative electrode of the battery cell; the negative bus includes a negative bus substrate and a negative bus stud protruding from the negative bus substrate. The negative bus stud forms a convex portion of the negative bus. The negative bus stud is inserted into and limited within the jack.

[0009] In some of these embodiments, the bus component further includes a connection unit, and the connection unit is insulated and connected between the positive bus and the negative bus.

[0010] In some of these embodiments, the battery cell is provided with a pressure relief valve. The pressure relief valve, the positive electrode of the battery cell, and the negative electrode of the battery cell are all located on the same side of the battery cell, and the pressure relief valve is located between the positive electrode and the negative electrode of the battery cell; the connection unit includes a first connection portion, a second connection portion, and an exhaust portion connected between the first connection portion and the second connection portion. One end of the first connection portion away from the exhaust portion is connected to the positive bus, and one end of the second connection portion away from the exhaust portion is connected to the negative bus. The exhaust portion is provided with a through exhaust passage, and the pressure relief valve is inserted into the exhaust passage.

[0011] In some of these embodiments, there are multiple battery cells and multiple bus components. All the battery cells and all the bus components are arranged along the thickness direction of one of the battery cells, and the battery cells and the bus components are in one-to-one correspondence and cooperation; the battery further includes a connecting member. The positive buses and the negative buses of the bus components arranged in rows and alternately are all electrically connected through the connecting member to form a series connection of all the battery cells.

[0012] In some of these embodiments, the connection between the connecting member and the positive bus connected thereto, and the connection between the connecting member and the negative bus connected thereto are both connected together by a snap-fit connection with a concave-convex fit.

[0013] An electrical device includes the battery according to any one of the above embodiments, and the battery is used to provide electrical energy.

[0014] In the above-mentioned battery and power-consuming device, the current-collecting positive electrode and the cell positive electrode, as well as the current-collecting negative electrode and the cell negative electrode, are detachably connected together by means of a snap-fit with concave-convex cooperation. This enables the cell and the current-collecting component to be quickly assembled and disassembled through concave-convex cooperation, which not only improves the assembly efficiency but also reduces the defective assembly rate. Additionally, during the disassembly process of the cell and the current-collecting component, there is no destructive disassembly, and the waste of components is reduced, thereby achieving the purpose of improving the production process and reducing the production cost. Furthermore, the concavity and convexity of the current-collecting positive electrode and the current-collecting negative electrode are opposite, which can also prevent misassembly during the assembly process of the cell and the current-collecting component, reducing the risk of incorrect installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 FIG. is a schematic structural diagram of the cooperation between the cell and the current-collecting component of the battery in an embodiment of the present application;

[0016] Figure 2 is Figure 1 an exploded view of the battery shown;

[0017] Figure 3 is Figure 1 a sectional view of the battery shown along the A-A direction;

[0018] Figure 4 is Figure 3 an enlarged schematic view of the partial structure B of the battery shown;

[0019] Figure 5 is Figure 3 an enlarged schematic view of the partial structure C of the battery shown;

[0020] Figure 6 is Figure 1 a sectional view of the cell of the battery shown along the A-A direction;

[0021] Figure 7 is Figure 1 a sectional view of the current-collecting component of the battery shown along the A-A direction;

[0022] Figure 8 is Figure 1 a bottom view of the current-collecting component of the battery shown;

[0023] Figure 9 FIG. is a schematic structural diagram of the cooperation between the cell, the current-collecting component and the connecting member of the battery in an embodiment of the present application;

[0024] Figure 10 is Figure 9 an exploded view of the battery shown;

[0025] Figure 11 is Figure 9 a schematic structural diagram of the battery shown after removing the current-collecting component and the connecting member.

[0026] Reference Numerals of the Drawings:

[0027] 1. Battery

[0028] 10. Battery Cell; 20. Busbar Component; 30. Connecting Component

[0029] 11. Positive Electrode of Battery Cell; 111. Substrate of Positive Electrode of Battery Cell; 112. Stud of Positive Electrode of Battery Cell; 112a. Main Body Portion; 112b. Limiting Portion; 12. Negative Electrode of Battery Cell; 121. Jack; 13. Pressure Relief Valve

[0030] 21. Positive Busbar; 211. Slot; 211a. First Section; 211b. Second Section; 212. Protrusion; 22. Negative Busbar; 221. Substrate of Negative Busbar; 222. Stud of Negative Busbar; 23. Connection Unit; 231. First Connection Portion; 232. Second Connection Portion; 233. Exhaust Portion; 233a. Exhaust Channel; 24. Groove

[0031] 31. Convex Protrusion Detailed Embodiments

[0032] To make the above objects, features, and advantages of the present application more apparent and understandable, the following will provide a detailed description of the specific embodiments of the present application with reference to the accompanying drawings. Many specific details are set forth in the following description to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0033] In the description of the present application, it should be understood that the orientation or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element 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 the present application.

[0034] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "a plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0035] In this application, unless otherwise clearly defined and limited, terms such as "installed", "connected", "linked", "fixed", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal connection of two components or the interaction relationship between two components, unless otherwise clearly limited. 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.

[0036] In this application, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0037] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are only for the purpose of illustration and do not represent the only implementation.

[0038] Please refer to Figure 1 , currently, from the perspective of the development of the market situation, the application of Battery 1 is becoming more and more extensive. Battery 1 is not only applied to energy storage power systems such as hydraulic, thermal, wind and solar power stations, but also widely used in electric transportation such as electric bicycles, electric motorcycles, electric vehicles, as well as in multiple fields such as military equipment and aerospace. With the continuous expansion of the application fields of Battery 1, the market demand for it is also constantly increasing.

[0039] Taking the application of Battery 1 in new energy vehicles as an example, as is well known, the current generated by Battery 1 reaches the vehicle drive unit through the busbar component 20 and the high-voltage plug-in, thereby driving the vehicle to travel. However, the low welding efficiency and poor welding rate between the positive electrode 11 and the negative electrode 12 of the battery cell of Battery 1 and the busbar component 20 seriously restrict the production process of the Battery 1 system, and when the busbar component 20 is disassembled after welding, only destructive disassembly can be carried out, resulting in a large amount of waste of parts.

[0040] Please refer to againFigure 1 and refer to Figure 2 and Figure 3 To alleviate the above problems, after in-depth research, the applicant has designed a battery 1, which includes a battery cell 10 and a current collecting component 20. The battery cell 10 protrudes with a battery cell positive electrode 11 and a battery cell negative electrode 12. The current collecting component 20 includes a current collecting positive electrode 21 and a current collecting negative electrode 22. The current collecting positive electrode 21 is detachably connected to the battery cell positive electrode 11, and the current collecting negative electrode 22 is detachably connected to the battery cell negative electrode 12, and both are connected together by a snap-fit connection with concave-convex cooperation. Among them, the battery cell positive electrode 11 and the battery cell negative electrode 12 have opposite concavities and convexities, and the current collecting positive electrode 21 and the current collecting negative electrode 22 have opposite concavities and convexities.

[0041] By designing that both the current collecting positive electrode 21 and the battery cell positive electrode 11, and the current collecting negative electrode 22 and the battery cell negative electrode 12 are detachably connected together by a snap-fit connection with concave-convex cooperation, the battery cell 10 and the current collecting component 20 can be quickly assembled and disassembled by means of concave-convex cooperation, which can not only improve the assembly efficiency, but also reduce the defective assembly rate. In addition, during the disassembly process of the battery cell 10 and the current collecting component 20, there will be no destructive disassembly, and the waste of parts is reduced, thus achieving the purpose of improving the production process and reducing the production cost. In addition, the battery cell positive electrode 11 and the battery cell negative electrode 12 have opposite concavities and convexities, and the current collecting positive electrode 21 and the current collecting negative electrode 22 have opposite concavities and convexities, so anti-fooling can also be carried out during the assembly process of the battery cell 10 and the current collecting component 20, reducing the risk of misassembly. In some alternative embodiments, the current collecting positive electrode 21 is provided with a concave portion, the battery cell positive electrode 11 is provided with a convex portion, and the concave portion on the current collecting positive electrode 21 is in concave-convex cooperation with the convex portion on the battery cell positive electrode 11; the current collecting negative electrode 22 is provided with a convex portion, the battery cell negative electrode 12 is provided with a concave portion, and the convex portion on the current collecting negative electrode 22 is in concave-convex cooperation with the concave portion on the battery cell negative electrode 12. This design is conducive to realizing the quick disassembly and assembly between the current collecting component 20 and the battery cell 10, and can carry out anti-fooling.

[0042] Please refer to Figure 3 、 Figures 5 to 8 Furthermore, in some alternative embodiments, the current collecting positive electrode 21 is columnar, and a slot 211 is formed on the current collecting positive electrode 21, and the slot 211 is configured to form the concave portion on the current collecting positive electrode 21; the battery cell positive electrode 11 includes a battery cell positive electrode substrate 111 and a battery cell positive electrode stud 112 protruding from the battery cell positive electrode substrate 111, and the battery cell positive electrode stud 112 is configured to form the convex portion of the battery cell positive electrode 11. The battery cell positive electrode stud 112 is inserted into and limited in the slot 211; a plurality of protrusions 212 protrude from the inner wall of the slot 211, and all the protrusions 212 are arranged around the circumference of the battery cell positive electrode stud 112 and are engaged with the battery cell positive electrode stud 112.

[0043] The positive electrode stud 112 of the battery cell is inserted into and limited within the slot 211, enabling quick disassembly and assembly between the positive electrode 11 of the battery cell and the busbar positive electrode 21. The formation of the protrusions 212 on the wall of the slot 211, with all the protrusions 212 arranged circumferentially around the positive electrode stud 112 of the battery cell and engaging with the positive electrode stud 112 of the battery cell, can enhance the installation strength and reliability between the positive electrode 11 of the battery cell and the busbar positive electrode 21, thereby reducing the risk of detachment and separation between the positive electrode 11 of the battery cell and the busbar positive electrode 21.

[0044] Further, in some alternative embodiments, the slot 211 is a stepped slot and includes a first section 211a and a second section 211b that communicate with each other. The opening structure of the second section 211b away from the first section 211a forms the slot opening of the slot 211. The cross-sectional area of the second section 211b is larger than that of the first section 211a, and the protrusions 212 are located within the second section 211b. The positive electrode stud 112 of the battery cell includes a main body portion 112a and a limiting portion 112b. The main body portion 112a is limited within the first section 211a. The limiting portion 112b protrudes from the circumferential side wall of the main body portion 112a and is arranged around the outer periphery of the main body portion 112a. The limiting portion 112b is located within the second section 211b and engages with the protrusions 212.

[0045] By designing the opening structure of the second section 211b away from the first section 211a to form the slot opening of the slot 211, with the cross-sectional area of the second section 211b being larger than that of the first section 211a, the main body portion 112a is subjected to less resistance during the process of being inserted and passing through the second section 211b into the first section 211a, facilitating the quick plugging of the positive electrode 11 of the battery cell and the busbar positive electrode 21. The limiting portion 112b protrudes from the circumferential side wall of the main body portion 112a and is arranged around the outer periphery of the main body portion 112a. The limiting portion 112b is located within the second section 211b and engages with the protrusions 212, which can increase the resistance for the positive electrode 11 of the battery cell to withdraw from the slot 211, making the installation of the positive electrode 11 of the battery cell and the busbar positive electrode 21 more reliable.

[0046] Please refer to Figure 4 、 Figures 6 to 8 , in some alternative embodiments, the negative electrode 12 of the battery cell is cylindrical, and a jack 121 is formed on the negative electrode 12 of the battery cell. The jack 121 forms a recess on the negative electrode 12 of the battery cell. The busbar negative electrode 22 includes a busbar negative electrode substrate 221 and a busbar negative electrode stud 222 protruding from the busbar negative electrode substrate 221. The busbar negative electrode stud 222 forms a convex portion of the busbar negative electrode 22. The busbar negative electrode stud 222 is inserted into and limited within the jack 121 to achieve quick disassembly and assembly between the negative electrode 12 of the battery cell and the busbar negative electrode 22.

[0047] In some alternative embodiments, the busbar positive electrode 21 and the busbar negative electrode 22 in the same busbar component 20 can be separately arranged.

[0048] Please refer to again Figures 1 to 3 and Figures 7 to 8 In some alternative embodiments, the busbar component 20 further includes a connection unit 23. The connection unit 23 is insulatingly connected between the positive busbar 21 and the negative busbar 22, so that the positive busbar 21 and the negative busbar 22 can be connected to form an integral body, facilitating assembly and use. Among them, the connection unit 23 can be made of rubber, plastic or other insulating materials. That is to say, the connection unit 23 realizes the insulating connection with the positive busbar 21 and the negative busbar 22 through its own insulating characteristics.

[0049] Taking the example that the positive electrode 11 and the negative electrode 12 of the battery cell 10 are arranged on the same side of the battery cell 10, in this embodiment, after the battery cell 10 and the busbar component 20 are assembled, the positive busbar 21, the negative busbar 22 and the connection unit 23 are all located on the same side of the battery cell 10. Taking the example that the positive electrode 11 and the negative electrode 12 of the battery cell 10 are arranged on opposite sides of the battery cell 10, in this embodiment, after the battery cell 10 and the busbar component 20 are assembled, the positive busbar 21 and the negative busbar 22 are located on opposite sides of the battery cell 10, and the connection unit 23 is located on a side adjacent to both sides. For example, when the positive electrode 11 and the negative electrode 12 of the battery cell 10 are arranged on both sides of the battery cell 10 along the length direction of the battery cell 10, the connection unit 23 is arranged on one side of the battery cell 10 along the width direction or the thickness direction of the battery cell 10.

[0050] Further, in some alternative embodiments, the battery cell 10 is provided with a pressure relief valve 13 in a protruding manner. The pressure relief valve 13, the positive electrode 11 and the negative electrode 12 of the battery cell are all located on the same side of the battery cell 10, and the pressure relief valve 13 is located between the positive electrode 11 and the negative electrode 12; the connection unit 23 includes a first connection portion 231, a second connection portion 232, and an exhaust portion 233 connected between the first connection portion 231 and the second connection portion 232. One end of the first connection portion 231 away from the exhaust portion 233 is connected to the positive busbar 21, one end of the second connection portion 232 away from the exhaust portion 233 is connected to the negative busbar 22, and an exhaust channel 233a is formed through the exhaust portion 233. The pressure relief valve 13 is inserted into the exhaust channel 233a. This design can not only realize the connection between the positive busbar 21 and the negative busbar 22, but also avoid the pressure relief valve 13 to ensure that the pressure relief valve 13 can relieve pressure smoothly. During actual operation, the gas leaked from the pressure relief valve 13 is discharged through the exhaust channel 233a.

[0051] Please refer to again Figure 1 and refer to simultaneously Figures 9 to 11 In some alternative embodiments, there are multiple battery cells 10 and multiple busbar components 20. All the battery cells 10 and all the busbar components 20 are all along the thickness direction of a battery cell 10 (such as Figure 11They are arranged in the direction indicated by arrow X in the figure, and the battery cells 10 and the busbar components 20 are in one-to-one correspondence and cooperation; the battery 1 further includes a connecting member 30, and the busbar positive electrodes 21 and the busbar negative electrodes 22 of the busbar components 20 arranged in rows and alternately are electrically connected through the connecting member 30 to form a series connection of all the battery cells 10.

[0052] Specifically, each battery cell 10 can be a secondary battery or a primary battery; it can also be a lithium-sulfur battery, a sodium-ion battery or a magnesium-ion battery, but is not limited thereto.

[0053] The battery cell positive electrodes 11 and the battery cell negative electrodes 12 of all the battery cells 10 are alternately arranged in rows to form two rows of battery cell hybrid rows. After the busbar components 20 and the corresponding battery cells 10 are assembled, the busbar positive electrodes 21 and the busbar negative electrodes 22 of all the busbar components 20 are alternately arranged in rows to form two rows of busbar hybrid rows.

[0054] Taking Figures 9 to 11 the state of the battery 1 as an example, the battery cell positive electrode 11 and the battery cell negative electrode 12 of the battery cell 10 are arranged on the same side of the battery cell 10, for example, the top side. The two rows of battery cell hybrid rows and the two rows of busbar hybrid rows are both located on the same side of the battery cell 10. Taking the battery cell positive electrode 11 and the battery cell negative electrode 12 of the battery cell 10 being arranged on opposite sides of the battery cell 10, for example, the left and right sides or the front and back sides, as an example, one row of battery cell hybrid rows and one row of busbar hybrid rows are located on one side of the battery cell 10, and the other row of battery cell hybrid rows and the other row of busbar hybrid rows are located on the other side of the battery cell 10.

[0055] The busbar positive electrodes 21 and the busbar negative electrodes 22 of the busbar components 20 arranged in rows and alternately are electrically connected through the connecting member 30 to form a series connection of all the battery cells 10. In this way, all the battery cells 10 are indirectly connected through a plurality of connecting members 30 to form a whole, so as to facilitate the simultaneous charging and discharging of all the battery cells 10.

[0056] In some alternative embodiments, the connecting member 30 and the busbar positive electrode 21 connected thereto, and the connecting member 30 and the busbar negative electrode 22 connected thereto are both connected together by an engaging connection manner of concave-convex cooperation.

[0057] For example, grooves 24 are formed on the end surface of the current collecting positive electrode 21 facing away from the slot 211 and on the end surface of the current collecting negative electrode substrate 221 in the current collecting negative electrode 22 facing away from the current collecting negative electrode stud 222. Two convex bumps 31 are formed on the connecting member 30, and the two convex bumps 31 on the connecting member 30 are respectively in one-to-one correspondence and cooperation with the grooves 24 on the current collecting positive electrode 21 and the current collecting negative electrode substrate 221. For another example, convex bumps are formed on the end surface of the current collecting positive electrode 21 facing away from the slot 211 and on the end surface of the current collecting negative electrode substrate 221 in the current collecting negative electrode 22 facing away from the current collecting negative electrode stud 222. Two grooves are formed on the connecting member 30, and the two grooves on the connecting member 30 are respectively in one-to-one correspondence and cooperation with the convex bumps on the current collecting positive electrode 21 and the current collecting negative electrode substrate 221.

[0058] The present application also provides an electrical device, which includes the battery 1 described in any one of the above embodiments, and the battery 1 is used to provide electrical energy.

[0059] The battery 1 in the present application has the effects described in any one of the above embodiments, so it will not be elaborated here.

[0060] Among them, the electrical device may be, but is not limited to, mobile phones, tablets, laptop computers, electric toys, electric tools, battery cars, electric vehicles, ships, spacecraft, and the like. Among them, the electric toy may include fixed or mobile electric toys, such as game consoles, electric vehicle toys, electric ship toys, electric aircraft toys, and the like. The spacecraft may include airplanes, rockets, space shuttles, spaceships, and the like.

[0061] It should be understood that the technical solutions described in the embodiments of the present application are not only limited to the electrical devices described above.

[0062] For the above battery 1 and electrical device, by designing that the current collecting positive electrode 21 and the battery cell positive electrode 11, and the current collecting negative electrode 22 and the battery cell negative electrode 12 are detachably connected together by an engaging method of concave-convex cooperation, the battery cell 10 and the current collecting component 20 can be quickly assembled and disassembled by the concave-convex cooperation method, which can not only improve the assembly efficiency, but also reduce the assembly defect rate. In addition, during the disassembly process of the battery cell 10 and the current collecting component 20, there will be no destructive disassembly, and the waste of parts is reduced, thus achieving the purpose of improving the production process and reducing the production cost. In addition, the concavity and convexity of the current collecting positive electrode 21 and the current collecting negative electrode 22 are opposite, so anti-fooling can also be carried out during the assembly process of the battery cell 10 and the current collecting component 20, reducing the risk of misassembly.

[0063] The technical features of the above embodiments can be combined arbitrarily. For the sake of brief description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0064] The above-described embodiments merely represent several implementation manners of the present application. The description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patented application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all fall within the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the appended claims.

Claims

1. A battery, characterized in that: The battery comprises: A battery cell (10) is provided with a battery cell positive electrode (11) and a battery cell negative electrode (12); and A bus component (20) comprises a bus positive electrode (21) and a bus negative electrode (22), wherein the bus positive electrode (21) is detachably connected to the battery cell positive electrode (11), and the bus negative electrode (22) is detachably connected to the battery cell negative electrode (12), and both are connected together in a concave-convex fitting clamping manner; The positive busbar (21) and the negative busbar (22) have opposite concave and convex shapes.

2. The battery according to claim 1, characterized in that The bus positive electrode (21) is provided with a concave portion, the battery cell positive electrode (11) is provided with a convex portion, and the concave portion on the bus positive electrode (21) and the convex portion on the battery cell positive electrode (11) are matched in a concave-convex manner; The bus negative electrode (22) is provided with a convex portion, and the cell negative electrode (12) is provided with a concave portion, and the convex portion on the bus negative electrode (22) and the concave portion on the cell negative electrode (12) are matched in a concave-convex manner.

3. The battery according to claim 2, characterized in that The bus positive electrode (21) is columnar, and a slot (211) is provided on the bus positive electrode (21), and the slot (211) is structured to form a recessed portion on the bus positive electrode (21); the battery cell positive electrode (11) comprises a battery cell positive electrode substrate (111) and a battery cell positive electrode protrusion (112) protruding from the battery cell positive electrode substrate (111), and the battery cell positive electrode protrusion (112) is structured to form a protrusion of the battery cell positive electrode (11), and the battery cell positive electrode protrusion (112) is inserted into and limited in the slot (211); A plurality of protrusions (212) are formed on the slot wall of the slot (211), and all of the protrusions (212) are arranged around the circumference of the battery cell positive electrode protrusion (112) and are buckled with the battery cell positive electrode protrusion (112).

4. The battery according to claim 3, characterized in that The slot (211) is a stepped slot and comprises a first section (211a) and a second section (211b) which are connected to each other, the second section (211b) is away from the opening of the first section (211a) to form a notch of the slot (211), the cross-sectional area of ​​the second section (211b) is greater than the cross-sectional area of ​​the first section (211a), and the protrusion (212) is located in the second section (211b); The battery cell positive electrode convex column (112) comprises a main body (112a) and a limiting portion (112b); the main body (112a) is limited in the first section (211a); the limiting portion (112b) protrudes from the peripheral side wall of the main body (112a) and is arranged around the outer periphery of the main body (112a); the limiting portion (112b) is located in the second section (211b) and is buckled with the protrusion (212).

5. The battery according to claim 2, characterized in that The cell negative electrode (12) is columnar, and a plug hole (121) is provided on the cell negative electrode (12), and the plug hole (121) is structured to form a recessed portion on the cell negative electrode (12); the bus negative electrode (22) comprises a bus negative electrode substrate (221) and a bus negative electrode protrusion (222) protruding from the bus negative electrode substrate (221), and the bus negative electrode protrusion (222) is structured to form a protrusion of the bus negative electrode (22), and the bus negative electrode protrusion (222) is inserted into and limited in the plug hole (121).

6. The battery according to claim 1, characterized in that The busbar component (20) further comprises a connection unit (23), wherein the connection unit (23) is insulated and connected between the busbar positive electrode (21) and the busbar negative electrode (22).

7. The battery according to claim 6, characterized in that The battery cell (10) is provided with a pressure relief valve (13) protruding therefrom; the pressure relief valve (13), the battery cell positive electrode (11) and the battery cell negative electrode (12) are located on the same side of the battery cell (10), and the pressure relief valve (13) is located between the battery cell positive electrode (11) and the battery cell negative electrode (12); The connection unit (23) comprises a first connection part (231), a second connection part (232), and an exhaust part (233) connected between the first connection part (231) and the second connection part (232); one end of the first connection part (231) away from the exhaust part (233) is connected to the converging positive electrode (21); one end of the second connection part (232) away from the exhaust part (233) is connected to the converging negative electrode (22); an exhaust passage (233a) is provided on the exhaust part (233); and the pressure relief valve (13) is inserted into the exhaust passage (233a).

8. The battery according to claim 1, characterized in that There are a plurality of the battery cores (10) and the current collecting components (20), all of the battery cores (10) and all of the current collecting components (20) are arranged along the thickness direction of one of the battery cores (10), and the battery cores (10) and the current collecting components (20) are matched one by one; The battery further comprises a connecting member (30), through which the positive bus electrodes (21) and the negative bus electrodes (22) of the bus components (20) arranged in a row and alternately are electrically connected to form a series connection of all the battery cells (10).

9. The battery according to claim 8, characterized in that The connecting piece (30) and the current bus anode (21) connected thereto, as well as the connecting piece (30) and the current bus anode (22) connected thereto, are connected together in a concave-convex fitting clamping manner.

10. An electrical device, characterized in that: A battery according to any one of claims 1 to 9, wherein the battery is used to provide electrical energy.

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