Battery and vehicle with same
By creating a space between the opposite tabs of the battery cell and placing the fluid guide within that space, the tabs are designed to be bent for easy welding. Stable connections are achieved through welding pressing and laser welding technologies, which solves the problem of excessive space occupied by the tab structure on both sides of the battery and improves the volumetric energy density and assembly efficiency of the battery.
Patent Information
- Application Number
- CN202423318970.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2034-12-31
AI Technical Summary
In existing technologies, the tab structures on both sides of the battery occupy too much space, affecting the battery's volumetric energy density.
A receiving space is formed between the opposite tabs of the battery cell, and the fluid-conducting part is placed in the receiving space. The tabs are designed to be bent to facilitate welding, and a stable connection is achieved through welding pressing and laser welding technology.
This technology effectively solves the problem in existing technologies by creating a space between the opposite tabs of the battery cell, placing the fluid guiding part in the space, designing the tabs to bend for easy welding, and achieving stable connection through welding pressing and laser welding technology, thereby improving the volumetric energy density and assembly efficiency of the battery.
Smart Images

Figure CN223941969U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of battery technology, and more specifically, to a battery and a vehicle having the same. Background Technology
[0002] Currently, with the rapid development of the new energy vehicle industry, battery performance indicators such as volume, weight, safety performance, and energy density have become important metrics for measuring battery technology performance. Among these, energy density is the most direct reflection of battery technology performance; improving energy density can enhance battery range.
[0003] In a battery, the cell is the energy storage unit. For a single cell, the potential for increasing energy density is limited. When the number of cells is too large, technical issues such as temperature control between cells and electrical connections restrict further increases in energy density. Therefore, to improve battery energy density, it is usually necessary to integrate multiple cells together in series and parallel to achieve higher energy density. However, when the number of cells is too large, electrical connection issues between them again limit further improvements in energy density.
[0004] In existing technologies, high-rate battery designs require large current-carrying areas for the battery tabs, and the tabs are often arranged symmetrically on both sides, with the tabs on both sides connected to the current-guiding structure of the cover plate. However, compared to batteries where both positive and negative tabs are on one side, the disadvantage of having tabs on both sides is that the tab welding occupies a large space, which is not conducive to improving volumetric energy density.
[0005] There is currently no effective solution to the above problems. Utility Model Content
[0006] The main objective of this invention is to provide a battery and a vehicle thereof, in order to solve the problem that the electrode tabs on both sides of the battery occupy too much space and affect the volumetric energy density of the battery in the prior art.
[0007] To achieve the above objectives, according to one aspect of the present invention, a battery is provided, comprising: a battery cell, at least two battery cells, each battery cell having tabs on both sides along a first direction, two tabs on the same side of the two battery cells being disposed opposite to each other, and a receiving space being formed between the two tabs on the same side of the two battery cells; a fluid conductor, at least a portion of which is located within the receiving space; wherein at least one tab has a welding position at its end away from the battery cell, bent toward the opposite tab, and when the tab is in the welding position, a portion of the tab is pressed against the surface of the fluid conductor away from the battery cell.
[0008] Furthermore, the first direction is the length direction of the battery cell, and the two battery cells are arranged adjacent to each other along the second direction, which is the thickness direction of the battery cell.
[0009] Furthermore, the battery also includes:
[0010] When the electrode tab is in the position to be welded, the welding plate is located on the side of the electrode tab away from the fluid guide. The welding plate has a pressure-bearing state connected to the external clamp. When the welding plate is in the pressure-bearing state, the welding plate is pressed against the electrode tab.
[0011] Furthermore, a welding area is formed on the side of the welding plate away from the electrode tab, and the welding plate, fluid guide and electrode tab are connected together by laser welding.
[0012] Furthermore, there are two conductors, which are disposed on both sides of the cell along the first direction. The two conductors are disposed in a one-to-one correspondence with the two receiving spaces, and each conductor is located in its corresponding receiving space.
[0013] Furthermore, the guide fluid includes a first guide section and a second guide section, which are connected and arranged at an angle. The first guide section is connected to the cover plate assembly, and the second guide section is located within the receiving space.
[0014] Furthermore, the first guide section is perpendicular to the second guide section.
[0015] Furthermore, the cover plate assembly is provided with two poles, which are correspondingly arranged with two fluid guides, and each pole is connected to the corresponding fluid guide.
[0016] Furthermore, the battery also includes: a housing, which is connected to a cover assembly to form a closed cavity, and the battery cell is located inside the closed cavity.
[0017] According to another aspect of the present invention, a vehicle is provided, including a battery, wherein the battery is any of the batteries described above.
[0018] By applying the technical solution of this utility model, a receiving space is formed between the opposite tabs of two or more battery cells, and the fluid-conducting portion is placed in this space, achieving efficient utilization of internal space. At least one tab is designed with a welding position bent towards the opposite tab. During welding, part of the tab is pressed against the surface of the fluid-conducting portion away from the battery cell, ensuring a large current-conducting area while reducing space occupation, effectively improving the volumetric energy density and assembly efficiency of the battery. This application solves the problem in the prior art where the tab structures on both sides of the battery occupy too much space, affecting the volumetric energy density of the battery. Attached Figure Description
[0019] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:
[0020] Figure 1 A schematic diagram of the structure of a first embodiment of the battery according to the present invention is shown;
[0021] Figure 2 A schematic diagram of the structure of a second embodiment of the battery according to the present invention is shown;
[0022] Figure 3 A schematic diagram of the structure of a third embodiment of the battery according to the present invention is shown.
[0023] The above figures include the following reference numerals:
[0024] 1. Guide fluid; 101. First guide section; 102. Second guide section;
[0025] 2. Battery cell; 201. Electrode tab;
[0026] 3. Welding and pressing; 301. Accommodation space;
[0027] 4. Cover plate assembly. Detailed Implementation
[0028] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0029] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.
[0030] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.
[0031] Exemplary embodiments according to this application will now be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments may be implemented in many different forms and should not be construed as being limited to the embodiments set forth herein. It should be understood that these embodiments are provided so that the disclosure of this application is thorough and complete, and that the concept of these exemplary embodiments is fully conveyed to those skilled in the art. In the drawings, for clarity, the thickness of layers and regions may be exaggerated, and the same reference numerals are used to denote the same devices, and therefore their description will be omitted.
[0032] Combination Figures 1 to 3 As shown, according to a specific embodiment of this application, a battery is provided.
[0033] Specifically, the battery includes: a battery cell 2 and a fluid conductor 1. There are at least two battery cells 2, and each battery cell 2 has tabs 201 on both sides along a first direction. The two tabs 201 on the same side of the two battery cells 2 are arranged opposite each other, and a receiving space 301 is formed between the two tabs 201 on the same side of the two battery cells 2. At least a portion of the fluid conductor 1 is located in the receiving space 301. At least one tab 201 has a welding position at the end away from the battery cell 2, which is bent toward the opposite tab 201. When the tab 201 is in the welding position, a portion of the tab 201 is pressed against the surface of the fluid conductor 1 away from the battery cell 2.
[0034] By applying the technical solution of this utility model, a receiving space is formed between the opposite tabs of two or more battery cells, and the fluid-conducting portion is placed in this space, achieving efficient utilization of internal space. At least one tab is designed with a welding position bent towards the opposite tab. During welding, part of the tab is pressed against the surface of the fluid-conducting portion away from the battery cell, ensuring a large current-conducting area while reducing space occupation, effectively improving the volumetric energy density and assembly efficiency of the battery. This application solves the problem in the prior art where the tab structure on both sides occupies too much space, affecting the volumetric energy density of the battery.
[0035] Specifically, the first direction is the length direction of the battery cell 2, and the two battery cells 2 are arranged adjacent to each other along the second direction, which is the thickness direction of the battery cell 2.
[0036] like Figure 2 As shown, by arranging two cells 2 adjacent to each other along the thickness direction, not only is the internal space utilization of the battery optimized, but the overall size of the battery is also made more compact and lighter, while also helping to improve heat dissipation performance.
[0037] Furthermore, the battery also includes:
[0038] When the tab 201 is in the position to be welded, the welding press 3 is located on the side of the tab 201 away from the fluid guide 1. The welding press 3 has a pressure-bearing state connected to the external clamp. When the welding press 3 is in the pressure-bearing state, it is pressed against the tab 201. The application of the welding press 3 not only improves the precision of the welding process and ensures the stability and consistency of each welding point, but also significantly improves the automation level of battery manufacturing, increases production efficiency, and reduces production costs.
[0039] like Figure 1 , Figure 2 As shown, the welding clamp 3 is located on the side of the tab 201 away from the fluid conductor 1, that is, above the position of the tab 201 to be welded. During the welding preparation stage, the tab 201 is bent to the welding position, at which point the tab and a portion of the surface of the fluid conductor 1 come into contact, forming a preliminary electrical connection interface. Then, the welding clamp 3 is placed above the tab 201 and enters a pressure-bearing state through an external clamp, meaning the welding clamp 3 is connected to the clamp and receives pressure. Under pressure, the welding clamp 3 presses the tab 201 downwards, ensuring a tight fit between the tab 201 and the fluid conductor 1, providing ideal contact conditions for laser welding or other welding methods.
[0040] The welding quality is greatly improved by designing the welding clamp 3, as it ensures maximum contact area in the welding zone and reduces welding defects (such as melt-through and weld holes). By precisely controlling the relative positions of the welding clamp 3 and the tab 201, the welding process is more controllable, improving the processing yield. This embodiment, through innovative structural design and precise component positioning, significantly improves the internal connection efficiency and space utilization of the battery, thereby achieving a comprehensive improvement in battery performance.
[0041] Specifically, a welding area is formed on the side of the welding plate 3 opposite to the tab 201. The welding plate 3, the fluid conductor 1, and the tab 201 are connected together by laser welding. Pressure is applied to the welding plate 3 using an external clamp to ensure a tight fit between the welding plate 3, the tab 201, and the fluid conductor 1. Subsequently, laser welding technology is used to connect the three components together in the welding area of the welding plate 3, forming a stable electrical connection. This welding method not only improves the strength and reliability of the connection but also ensures the stability of electrical performance.
[0042] The application of laser welding technology not only enhances the structural strength of the weld joint and reduces the heat-affected zone during the welding process, thus preventing the degradation of battery material performance due to overheating, but also reduces the internal resistance of the battery and improves the energy conversion efficiency of the battery.
[0043] Specifically, there are two fluid conductors 1, which are disposed on both sides of the battery cell 2 along the first direction. The two fluid conductors 1 are disposed in a one-to-one correspondence with the two receiving spaces 301, and each fluid conductor 1 is located in the corresponding receiving space 301.
[0044] In this embodiment, two fluid guides 1 are designed, respectively disposed on both sides of the cell 2 along the first direction. This dual-sided configuration of fluid guides 1 corresponds one-to-one with the tabs 201 on both sides of the cell 2, with each fluid guide 1 located within its corresponding receiving space 301. This design ensures a balanced current distribution, improves the battery's overcurrent capability, and, since the fluid guides 1 are located within the receiving space 301 formed by the tabs 201, effectively reduces the ineffective space inside the battery, thereby significantly improving the battery's volumetric energy density.
[0045] The accommodating space 301 is formed between the two tabs 201 of the two opposing battery cells 2, providing precise positioning and space for the conductor 1. This innovative design utilizes the naturally formed gaps between the tabs 201 as the placement area for the conductor 1, which not only simplifies the internal structure of the battery but also ensures close contact between the conductor 1 and the tabs 201, providing a stable foundation for subsequent welding processes.
[0046] According to a specific embodiment, at least two battery cells 2 are prepared, each battery cell 2 having tabs 201 on both sides along a first direction. Simultaneously, two conductive bodies 1 are prepared, their size and shape matching the receiving space 301. The tabs 201 on both sides of the battery cell 2 are appropriately bent to form welding positions. The bent tabs 201 form receiving spaces 301 on both sides of the battery cell 2, providing a location for placing the conductive bodies 1. The two conductive bodies 1 are placed in the receiving spaces 301 on both sides of the battery cell 2, ensuring that the conductive bodies 1 and the welding positions of the tabs 201 are in close contact. A welding plate 3 is placed above the welding position of each tab 201, ensuring that a welding area is formed between the side of the welding plate away from the tab and the conductive body 1. Pressure is applied to the welding plate 3 using an external clamp, causing the welding plate 3, the tabs 201, and the conductive bodies 1 to fit tightly together. Subsequently, laser welding technology is used to connect the three together in the welding area. The dual-sided fluid guide 1 improves the battery's fluid conduction and heat dissipation performance, while the design of the housing space 301 ensures the compactness and efficiency of the battery's internal structure.
[0047] Furthermore, the guide body 1 includes a first guide section 101 and a second guide section 102, which are connected and arranged at an angle. The first guide section 101 is connected to the cover plate assembly 4, and the second guide section 102 is located within the receiving space 301. The segmented design and angled arrangement of the guide body 1 not only optimize the internal spatial layout of the battery and reduce the ineffective space inside the battery, but also simplify the battery assembly and maintenance process.
[0048] The first current-conducting section 101 is designed to connect with the cover plate assembly 4, and its function is to transmit the current generated by the battery cell 2 to the external circuit. The first current-conducting section 101 typically has a large current-carrying area to meet the requirements of high-rate discharge, and its connection with the cover plate assembly 4 also ensures the reliability of current transmission.
[0049] The second current-guiding section 102 is located within the accommodating space 301 formed on both sides of the battery cell 2. A welding plate 3 is placed above the welding position of the tab 201 to be welded, ensuring that a welding area is formed between the welding plate 3 and the second current-guiding section 102. Pressure is applied to the welding plate 3 using an external clamp, making the tab 201, the welding plate 3, and the second current-guiding section 102 fit tightly together. Subsequently, laser welding technology is used to weld the second current-guiding section 102 to the tab 201 in the welding area, ensuring high welding quality and a high processing qualification rate. Unlike the first current-guiding section 101, the design of the second current-guiding section 102 focuses more on the efficient use of space. Its welding contact area with the tab 201 has been optimized to achieve the best current guiding and heat dissipation effects.
[0050] The first guide section 101 and the second guide section 102 are set at a certain angle, which not only forms a natural transition of the guide fluid 1 from the cell 2 to the cover plate assembly 4, but also effectively reduces the space occupied by the guide fluid 1, further optimizes the compactness of the internal structure of the battery, and improves the volumetric energy density.
[0051] Specifically, the first current guiding section 101 is perpendicular to the second current guiding section 102. The perpendicular arrangement of the first current guiding section 101 and the second current guiding section 102 optimizes the current path, reduces energy loss during current transmission, and improves battery efficiency and energy conversion rate.
[0052] The first current guiding section 101 is connected to the cover plate assembly 4, and the second current guiding section 102 is located in the accommodating space 301. The first current guiding section 101 is perpendicular to the second current guiding section 102, so that the first current guiding section 101 and the second current guiding section 102 are respectively in close contact with the cover plate assembly 4 and the tab 201. This can ensure that the current flows smoothly from one cell to another, while reducing the space occupied inside the battery and improving the overall packaging density.
[0053] Specifically, the cover plate assembly 4 is provided with two terminals, which are correspondingly arranged with two fluid guides 1, and each terminal is connected to its corresponding fluid guide 1. The arrangement of the terminals not only simplifies the connection between the battery and external devices, improving the stability and convenience of the connection, but also makes the installation and replacement of the battery easier, reducing the maintenance cost and time of the equipment.
[0054] The cover assembly 4 is typically located on top of the battery and has two terminals on it, corresponding to the positive and negative terminals of the battery, respectively. These two terminals are connected to the first guide section 101 of the guide fluid 1, forming an external output interface for the battery current. At the same time, the design of the terminals is also responsible for current distribution, ensuring that the current is balanced during the charging and discharging process of the battery, avoiding local overheating or overcharging, thereby protecting the battery from damage.
[0055] The two guiding sections of the guide fluid 1 (first guiding section 101 and second guiding section 102) are respectively connected to the cell tab 201 and the terminal post of the cover plate assembly 4. The first guiding section 101 is perpendicular to the second guiding section 102 and is directly welded to the terminal post on the cover plate assembly 4. This design ensures that the current transmission path from the cell 2 to the external circuit is the shortest and the impedance is the lowest, thereby improving the battery's overcurrent capacity and charge / discharge efficiency.
[0056] The design of the cover assembly 4 needs to consider the connection strength with the terminal post, the sealing performance, and the compatibility with external circuits to ensure the stability and safety performance of the battery in various working environments.
[0057] By connecting the bipolar posts to the fluid conductor 1, the spatial layout is optimized and the volumetric energy density of the battery is improved. This simplifies the current transmission path inside the battery, reduces the internal space occupied, and has a significant effect on improving the overall performance and manufacturing efficiency of the battery.
[0058] Furthermore, the battery also includes:
[0059] The housing, connected to the cover assembly 4, forms a closed cavity, within which the battery cell 2 is located. This closed cavity design effectively protects the internal components of the battery from external environmental influences by providing a sealed internal environment, and also improves the overall performance and safety of the battery.
[0060] The casing is the external structure of the battery, and its function is to protect the internal components from external environmental influences, such as preventing moisture and dust from entering, while also providing physical support for the battery cells. The casing is typically made of metal or composite materials to ensure good strength and sealing.
[0061] The cover assembly 4 is located on top of the battery casing and is tightly connected to the casing to form a closed cavity. The cover assembly 4 is equipped with terminals for external battery connections. The cover assembly 4 typically integrates various safety devices, such as pressure relief valves and overcurrent protection devices. These devices can respond promptly to abnormal increases in internal battery pressure or current overload, releasing pressure and cutting off current to prevent battery explosion or internal short circuits, thus ensuring safe battery operation.
[0062] The battery described in the above embodiment is processed by the following steps:
[0063] 1. Prepare the battery cell 2, cover plate assembly 4 (with two terminals), two guide tubes 1 (including the first guide section 101 and the second guide section 102), weld the pressing plate 3, and the battery casing.
[0064] 2. Bend the tab 201 of the battery cell 2 to make close contact with the second guide section 102. The first guide section 101 is perpendicular to the second guide section 102 and is set to correspond to the two poles on the cover plate assembly 4.
[0065] 3. Use welding clamping plate 3 to position and press the tab 201 and the second guide section 102 to ensure stable contact between the tab 201 and the guide section 1 during welding. Then, laser weld the welding clamping plate 3, the tab 201, and the second guide section 102 to form a strong electrical connection. Next, weld the first guide section 101 to the two posts on the cover plate assembly 4 to complete the connection between the battery cell 2 and the external circuit.
[0066] 4. Assemble the battery cell 2 and related fluid guiding components 1 into the battery casing, ensuring all components are correctly positioned. Then, tightly connect the cover plate assembly 4 to the battery casing to form a closed cavity. During the connection process, perform sealing welding on the outer periphery where the casing and cover plate assembly 4 mate to ensure the overall sealing and waterproof performance of the battery.
[0067] 5. After completing the assembly and sealing welding of all components, perform performance tests on the battery, including current conductivity, charge and discharge efficiency, volumetric energy density, and safety performance, to verify the effectiveness and reliability of the design.
[0068] As can be seen from the above description, the embodiments of this utility model achieve the following technical effects:
[0069] 1. Through the design of the first and second flow guiding sections of the flow guide, especially the vertical connection between the two sections, not only is the flow guiding area of the cell tab increased and the current carrying capacity of the battery improved, but the space occupation is also reduced through the folded structure, thereby significantly improving the volumetric energy density of the battery, improving the heat dissipation efficiency of the battery, and ensuring the stability and safety of the battery under high-rate charge and discharge conditions.
[0070] 2. This design incorporates at least one tab with a welding position that bends towards the opposite tab. During welding, part of the tab is pressed against the surface of the conductive material furthest from the cell, ensuring a large conductive area while reducing space occupation, effectively improving the battery's volumetric energy density and assembly efficiency. This not only facilitates independent positioning and pressing using welding plates, simplifying the assembly process of internal battery components, but also ensures high welding quality standards, significantly improving the battery's processing yield, and thus enhancing the overall efficiency and cost-effectiveness of battery manufacturing.
[0071] 3. By setting two terminals on the cover plate assembly and tightly connecting them with the fluid guide, this solution not only achieves efficient current output, but also integrates multiple safety protection mechanisms, such as pressure relief valves and overcurrent protection devices, effectively preventing battery explosion and internal short circuit under abnormal conditions, greatly enhancing battery safety performance, and ensuring battery stability and reliability under various working conditions.
[0072] The above embodiments can also be applied to the field of equipment technology, that is, according to another aspect of the present invention, a vehicle is provided, including a battery, the battery being the battery described in the above embodiments.
[0073] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.
[0074] In addition to the above, it should be noted that the terms "one embodiment," "another embodiment," and "embodiment" used in this specification refer to specific features, structures, or characteristics described in connection with that embodiment, which are included in at least one embodiment described in the general description of this application. The appearance of the same expression in multiple places in the specification does not necessarily refer to the same embodiment. Furthermore, when a specific feature, structure, or characteristic is described in connection with any embodiment, the intention is to suggest that implementing such a feature, structure, or characteristic in conjunction with other embodiments also falls within the scope of this utility model.
[0075] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.
[0076] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A battery, characterized in that, include: The battery cell (2) is at least two, and each battery cell (2) is provided with tabs (201) on both sides along the first direction. The two tabs (201) on the same side of the two battery cells (2) are arranged opposite to each other, and a receiving space (301) is formed between the two tabs (201) on the same side of the two battery cells (2). A fluid guide (1), at least a portion of which is located within the receiving space (301); At least one of the tabs (201) has a welding position at one end away from the cell (2) that is bent toward the opposite tab (201). When the tab (201) is in the welding position, part of the tab (201) is pressed against the surface of the fluid conductor (1) away from the cell (2).
2. The battery according to claim 1, characterized in that, The first direction is the length direction of the battery cell (2), and two battery cells (2) are arranged adjacent to each other along the second direction, which is the thickness direction of the battery cell (2).
3. The battery according to claim 1 or 2, characterized in that, The battery also includes: When the electrode tab (201) is located at the position to be welded, the welding plate (3) is located on the side of the electrode tab (201) away from the fluid guide (1). The welding plate (3) has a pressure-bearing state connected to an external clamp. When the welding plate (3) is in the pressure-bearing state, the welding plate (3) is pressed against the electrode tab (201).
4. The battery according to claim 3, characterized in that, The welding plate (3) forms a welding area on the side opposite to the tab (201), and the welding plate (3), the fluid guide (1) and the tab (201) are connected together by laser welding.
5. The battery according to claim 1, characterized in that, There are two fluid conductors (1), which are disposed on both sides of the battery cell (2) along the first direction. The two fluid conductors (1) are disposed in a one-to-one correspondence with the two accommodating spaces (301), and each fluid conductor (1) is located in the corresponding accommodating space (301).
6. The battery according to claim 1 or 5, characterized in that, The guide fluid (1) includes a first guide section (101) and a second guide section (102), the first guide section (101) and the second guide section (102) are connected, the first guide section (101) and the second guide section (102) are arranged at an angle, the first guide section (101) is connected to the cover plate assembly (4), and the second guide section (102) is located in the receiving space (301).
7. The battery according to claim 6, characterized in that, The first guide section (101) is perpendicular to the second guide section (102).
8. The battery according to claim 6, characterized in that, The cover plate assembly (4) is provided with two poles, and the two poles are correspondingly provided with two fluid guides (1), and each pole is connected to the corresponding fluid guide (1).
9. The battery according to claim 6, characterized in that, The battery also includes: The housing is connected to the cover plate assembly (4) to form a closed cavity, and the battery cell (2) is located in the closed cavity.
10. A vehicle, comprising a battery, characterized in that, The battery is the battery according to any one of claims 1 to 9.