Battery and electronic device

Abstract

The application provides a battery and an electronic device. The battery comprises a shell with a receiving cavity, a pole column arranged on the shell, a battery cell arranged in the receiving cavity, the battery cell having a tab, a transition piece arranged between the pole column and the battery cell, the tab being connected to an upper surface of the transition piece, and an insulating piece arranged between the transition piece and a top end of the shell, a side of the insulating piece facing the transition piece being provided with a protrusion. The application avoids virtual welding, thereby improving the electrical performance and safety of the battery.

Description

Technical Field

[0001] This application relates to a battery and electronic device, belonging to the field of new energy battery technology. Background Technology

[0002] A battery is a device that converts chemical energy into electrical energy. It is widely used in daily life, and with the development of the battery industry, the requirements for battery performance are becoming increasingly stringent.

[0003] In the process of conceiving and implementing this application, the applicant discovered at least the following problems: The battery includes a cell, a casing, a cover plate, and an insulating component. The cell is placed inside the casing, which is used to protect the cell. The insulating component is placed between the cover plate and the cell to insulate the cell and the cover plate. In order to avoid the risk of puncturing the separator after the cell tab is welded to the adapter plate, the cell tab can be wrapped around the upper surface of the adapter plate. At this time, the end of the tab is easy to overlap with the terminal, which affects the welding quality of the terminal and the adapter plate.

[0004] The preceding description is intended to provide general background information and does not necessarily constitute prior art. Utility Model Content

[0005] This application provides a battery and electronic device that avoids poor soldering, thereby improving the battery's electrical performance and safety.

[0006] This application provides a battery, comprising:

[0007] The housing has a receiving cavity, and the housing is provided with pole posts;

[0008] The battery cell, located within the housing cavity, has tabs;

[0009] The adapter plate is located between the terminal and the battery cell, and the tab is connected to the upper surface of the adapter plate;

[0010] An insulating component is located between the adapter plate and the top of the housing, and the side of the insulating component facing the adapter plate has a protruding tab.

[0011] In addition, this application also provides an electronic device including the battery described above.

[0012] The beneficial effects of this application are: by protruding the design, the tabs are prevented from extending to the welding point between the terminal and the adapter during the welding process, thereby effectively avoiding poor or incomplete welding at the welding point, thus improving the electrical performance and safety of the battery. By ensuring the quality of the welding point, resistance and heat generation are reduced, which helps to improve the thermal management performance of the battery, reduce the risk of overheating, and improve the safety of the battery. Attached Figure Description

[0013] The above and other objects, features, and advantages of embodiments of this application will become more readily understood through the following detailed description with reference to the accompanying drawings. In the drawings, several embodiments of this application will be described by way of example and non-limitation, wherein:

[0014] Figure 1 This is a schematic diagram of the battery structure according to an embodiment of this application;

[0015] Figure 2 This is a schematic diagram of a battery explosion according to an embodiment of this application;

[0016] Figure 3 This is a cross-sectional view of the battery from a first perspective according to an embodiment of this application;

[0017] Figure 4 for Figure 3 Enlarged view of a section at point I;

[0018] Figure 5 This is a schematic diagram of the assembly of the insulating component and the adapter piece in the battery according to an embodiment of this application;

[0019] Figure 6 This is a cross-sectional view of the battery from a second perspective according to an embodiment of this application;

[0020] Figure 7 for Figure 6 Enlarged view of section II in the middle;

[0021] Figure 8 This is an assembly cross-sectional view of the first type of insulating component, adapter piece, and terminal post in the battery of the application embodiment;

[0022] Figure 9 This is an assembly cross-sectional view of the second type of insulating component, adapter piece, and terminal post in the battery of the application embodiment;

[0023] Figure 10 This is an assembly cross-sectional view of the third type of insulating component, adapter piece, and terminal post in the battery of the application embodiment.

[0024] Figure label:

[0025] 100-battery;

[0026] 110 - Casing;

[0027] 111-Pole Column;

[0028] 120-cell;

[0029] 121-Ear;

[0030] 130-Adapter;

[0031] 140 - Insulating parts;

[0032] 141 - Protrusion;

[0033] 1411 - First protrusion;

[0034] 1412 - Second protrusion;

[0035] 1401-Ontology;

[0036] 1402-Butt;

[0037] 142-groove;

[0038] 150-Aluminum-Plastic Film;

[0039] 160 - Cover plate. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. All other obtained embodiments are within the scope of protection of this application. In the absence of conflict, the following embodiments and features can be combined with each other.

[0041] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0042] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0043] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0044] A battery cell is the smallest charging and discharging unit. A battery cell consists of a positive electrode, a negative electrode, and a separator between them, which are formed by winding or stacking to form the cell body. The positive electrode includes a positive current collector and a positive active material. The positive current collector can be made of metals such as aluminum foil, nickel foil, and stainless steel, or a composite foil formed by combining metals and insulating materials. The positive active material includes the main positive active material, conductive agent, binder, etc. The main positive active material includes one or more of lithium-containing positive active materials such as lithium iron phosphate, ternary materials containing nickel, cobalt, and manganese, and lithium manganese iron phosphate.

[0045] Similarly, the negative electrode sheet includes a negative current collector and a negative active material. The negative current collector can be made of metal materials such as copper foil, aluminum foil, and stainless steel, or it can be a composite foil material formed by combining metals and insulating materials. The negative active material includes the negative active material, conductive agent, binder, etc. The negative active material includes one or more of the following: artificial graphite, natural graphite, silicon carbide, silicon oxide, lithium titanate, etc.

[0046] The tab serves as the current output terminal of the battery cell. The tab is either integrated with or separately connected to the positive or negative electrode.

[0047] The separator, as an insulating layer, prevents short circuits within the battery cell caused by contact between the positive and negative electrodes. It also acts as a semi-permeable layer, preventing larger molecules from passing through while allowing smaller charged ions to pass. The base of the tab is the edge of the active material coating area of ​​the electrode.

[0048] In the process of conceiving and implementing this application, the applicant discovered at least the following problems: The battery includes a cell, a casing, a cover plate, and an insulating component. The cell is placed inside the casing, which is used to protect the cell. The insulating component is placed between the cover plate and the cell to insulate the cell and the cover plate. In order to avoid the risk of puncturing the separator after the cell tab is welded to the adapter plate, the cell tab can be wrapped around the upper surface of the adapter plate. At this time, the end of the tab is easy to overlap with the terminal, which affects the welding quality of the terminal and the adapter plate.

[0049] The battery proposed in this application, through its raised design, prevents the tabs from extending to the welding point between the terminal and the adapter during the welding process. This effectively avoids incomplete or poor welding at the welding point, thereby improving the battery's electrical performance and safety. By ensuring the quality of the welding point, it reduces resistance and heat generation, which helps improve the battery's thermal management performance, reduces the risk of overheating, and enhances the battery's safety.

[0050] The battery provided in this application will be described in detail below with reference to specific embodiments.

[0051] Figure 1 This is a schematic diagram of the battery structure according to an embodiment of this application. Figure 2 This is a schematic diagram of a battery explosion according to an embodiment of this application. Figure 3 This is a cross-sectional view of the battery from a first perspective according to an embodiment of this application. Figure 4 for Figure 3 Enlarged view of a section at point I. Figure 5 This is a schematic diagram of the assembly of the insulating component and the adapter piece in the battery according to an embodiment of this application. Figure 6 This is a cross-sectional view of the battery from a second perspective according to an embodiment of this application. Figure 7 for Figure 6 Enlarged view of section II in the middle.

[0052] like Figures 1 to 7 As shown, this application embodiment proposes a battery 100, comprising:

[0053] The housing 110 has a receiving cavity, and the housing 110 is provided with a pole post 111;

[0054] The battery cell 120 is located inside the receiving cavity, and the battery cell 120 has tabs 121;

[0055] The adapter piece 130 is located between the terminal post 111 and the battery cell 120, and the tab 121 is connected to the upper surface of the adapter piece 130;

[0056] An insulating member 140 is disposed between the top of the adapter piece 130 and the housing 110, and a protrusion 141 is provided on the side of the insulating member 140 facing the adapter piece 130.

[0057] The protrusion 141 is used to block at least part of the tab 121.

[0058] In some examples, the housing 110 can be a rectangular structure, and the size of the housing 110 can be greater than or equal to the size of the cell 120, so that the housing 110 can support the cell 120.

[0059] It is understandable that the purpose of the receiving cavity is to house the battery cell 120. It is easy to understand that the receiving cavity is sealed to prevent side reactions from occurring in the internal system of the battery cell 120, which would affect the performance of the battery cell 120.

[0060] For example, the size or shape of the receiving cavity is matched with the size and shape of the battery cell 120. Specifically, it can be adjusted according to the actual situation. This application embodiment does not impose too many restrictions here.

[0061] In this embodiment, the battery cell 120 can be configured as a rectangular structure. The battery cell 120 can be located inside the housing 110.

[0062] Understandably, the housing 110 can be used to support the battery cell 120.

[0063] The dimensions of the aforementioned housing 110 can be set according to actual needs, and this embodiment of the application does not impose any restrictions on them.

[0064] In addition, it should be noted that the shape of the housing 110 is not limited in this embodiment. For example, the housing 110 can be a regular shape such as a cuboid or a cylinder. Of course, the housing 110 can also be other irregular shapes.

[0065] In some embodiments, the housing 110 protects the battery cell 120 therein. The housing 110 may be composed of two parts joined together for easy installation. The housing 110 may be a metal shell. Specifically, the material of the housing 110 may be stainless steel, which is sturdy and corrosion-resistant. Of course, the housing 110 may also be made of other materials, and this embodiment does not impose any specific limitations on this.

[0066] In some embodiments, an aluminum-plastic film 150 is provided on the outer side of the battery cell 120.

[0067] For example, the aluminum-plastic film 150 can be composed of a nylon layer, an aluminum foil layer, a heat-sealing layer, and an adhesive for bonding. The innermost heat-sealing layer can be made of polypropylene material, which serves as a sealing and bonding agent. Polypropylene material has good heat-sealing adhesion to metal Ni, Al, and the tab 121 adhesive block, and has electrolyte resistance, insulation, and puncture resistance. The middle layer can be made of aluminum foil, specifically pure aluminum or aluminum-iron alloy, which can react with oxygen in the air at room temperature to form an oxide film, preventing oxygen and moisture from entering and thus protecting the internal battery cell 120. The outermost layer can be made of nylon, which has good impact resistance, puncture resistance, heat resistance, insulation, and abrasion resistance. It is used to protect the aluminum foil layer from scratches and to reduce the impact and vibration caused to the battery 100 by drops, thereby protecting the internal components.

[0068] It should be noted that the tab 121 and the post 111 are usually connected by an adapter 130, which is used to conduct the electricity from the tab 121 to the post 111.

[0069] It should be noted that the battery 100 also includes a terminal post 111, which is inserted through the housing 110 and electrically connected to the tab 121 of the cell 120. The main function of the terminal post 111 is to conduct the electricity on the tab 121 of the cell 120 to the outside of the housing 110 for easy use.

[0070] In some embodiments, the electrode post 111 is generally made of a material with good electrical conductivity, such as copper or aluminum.

[0071] It should be noted that the tab 121 of the cell 120 bypasses the lower surface of the adapter plate 130 and is soldered to the upper surface of the adapter plate 130. Therefore, the tab 121 will extend in the welding direction of the terminal post 111 and the adapter plate 130. In order to avoid the above situation, a protrusion 141 is provided on the insulating part 140. The purpose of the protrusion 141 is to prevent the tab 121 from extending towards the welding point of the terminal post 111 and the adapter plate 130, so as to avoid the occurrence of poor soldering between the terminal post 111 and the adapter plate 130.

[0072] By implementing the above-mentioned design, specifically the protrusion 141, the tab 121 is prevented from extending to the welding point between the terminal post 111 and the adapter piece 130 during the welding process. This effectively avoids incomplete or poor welding at the welding point, thereby improving the electrical performance and safety of the battery 100. By ensuring the quality of the welding point, reducing resistance and heat generation, the thermal management performance of the battery 100 is improved, the risk of overheating is reduced, and the safety of the battery 100 is enhanced.

[0073] Specifically, by restricting the movement of the tab 121, the tab 121 is ensured to remain in the correct position during the welding process, thereby improving the stability and consistency of the welding.

[0074] In addition, the assembly process of battery 100 can be simplified because the presence of insulating part 140 and protrusion 141 can automatically correct the position of electrode tab 121, reducing the high requirements for assembly accuracy and lowering production costs.

[0075] In some embodiments, the battery 100 further includes a cover plate 160, with an insulating member 140 disposed on the side of the cover plate 160 facing the cell 120.

[0076] It should be noted that the addition of cover plate 160 provides an additional protective layer for battery 100, enhancing the integrity of the overall structure.

[0077] The cover 160 effectively protects the battery cell 120 from external environmental influences such as moisture, dust, and physical impact, thereby improving the durability and reliability of the battery 100. The cover 160 not only provides physical protection but also acts as a protective barrier for the battery 100, reducing the risk of internal short circuits and other potential safety hazards.

[0078] In some embodiments, the cover plate 160 is generally made of metal, so the insulating member 140 is located between the cover plate 160 and the cell 120 for insulation.

[0079] Figure 8 This is an assembly cross-sectional view of the first type of insulating component, adapter piece, and terminal post in the battery according to the application embodiment, as shown below. Figure 8 As shown, in some alternative embodiments, tab 121 is welded to the upper surface of adapter piece 130 to form welded area D.

[0080] The upper surface of the adapter piece 130 is the side facing away from the battery cell 120; that is, the upper surface of the adapter piece 130 can also be the side facing the terminal post 111.

[0081] Along the width direction Y of the battery 100, there is a gap A between the end of the welding area facing the terminal post 111 and the end of the tab 121.

[0082] Along the height direction Z of battery 100, there is a gap B between protrusion 141 and adapter piece 130, and gaps A and B satisfy: 3mm 2 ≤A*B≤35mm 2 .

[0083] It should be noted that X represents the length direction of battery 100, Y represents the width direction of battery 100, and Z represents the height direction of battery 100.

[0084] It should be noted that by precisely controlling the product of gap A and gap B, an appropriate distance can be maintained between the end of tab 121 and post 111, avoiding direct overlap, reducing the risk of poor soldering, and improving welding quality and the electrical performance of battery 100. By ensuring the stability and reliability of the welding area, the performance degradation of battery 100 caused by poor soldering is reduced, thereby extending the service life of battery 100.

[0085] Specifically, if the product of gaps A and B is too small, the protrusion 141 may interfere with the adapter piece 130, leading to poor welding between the adapter piece 130 and the terminal 111. If the product of gaps A and B is too large, the end of the tab 121 may easily overlap with the terminal 111, also resulting in poor welding between the adapter piece 130 and the terminal 111. If a cold solder joint occurs, the resistance will be high, leading to excessive heat generation in the battery 100 and a higher risk of thermal runaway. Therefore, it is necessary to optimize the gaps to ensure the integrity and reliability of the welding area.

[0086] In some embodiments, A*B can be 3mm. 2 4mm 2 5mm 2 6mm 2 7mm 28mm 2 9mm 2 10mm 2 11mm 2 12mm 2 13mm 2 14mm 2 15mm 2 16mm 2 17mm 2 18mm 2 19mm 2 20mm 2 21mm 2 22mm 2 23mm 2 24mm 2 25mm 2 26mm 2 27mm 2 28mm 2 29mm 2 30mm 2 31mm 2 32mm 2 33mm 2 34mm 2 35mm 2 Any value within or between these two values ​​is acceptable, without further restrictions.

[0087] like Figures 1 to 5 As shown, in some alternative embodiments, the insulating member 140 has a groove 142 on the side facing the adapter piece 130, the groove 142 is used to accommodate the tab 121, and the protrusion 141 is located in the groove 142.

[0088] It should be noted that the groove 142 provides a clear positioning space for the tab 121, ensuring that the tab 121 remains in the correct position during the welding process, and allowing the tab 121 to be better filled in the groove 142, avoiding extension towards the pole post 111, thereby reducing welding defects.

[0089] Understandably, since the protrusion 141 is located within the groove 142, it further restricts the movement of the tab 121, prevents the end of the tab 121 from accidentally contacting the terminal post 111, reduces the risk of short circuit, and improves the safety of the battery 100.

[0090] It should be noted that by fixing the tab 121 in the groove 142 and using the protrusion 141 to restrict its movement, the positional displacement of the tab 121 due to thermal expansion or other factors during the welding process can be avoided, thereby improving the welding quality and reducing the possibility of incomplete welding. By ensuring the stability of the welding area and reducing unnecessary resistance, the thermal management performance of the battery 100 can be improved, the risk of overheating can be reduced, and the service life of the battery 100 can be extended.

[0091] In addition, the groove 142 provides a natural guide, making it easier to position and fix the tab 121 during assembly, simplifying the assembly process and improving production efficiency.

[0092] like Figure 4 and Figure 5 As shown, in some alternative embodiments, there are at least two protrusions 141, and at least two protrusions 141 are spaced apart from the insulating member 140.

[0093] It should be noted that the presence of multiple protrusions 141 restricts the movement of the tab 121 in multiple directions, further preventing accidental contact between the end of the tab 121 and the terminal post 111, reducing the possibility of short circuits and improving the safety of the battery 100.

[0094] By adjusting the number and spacing of the protrusions 141, they can be flexibly adjusted according to the specific design requirements of the battery 100 to meet the requirements of different application scenarios.

[0095] Continue to refer to Figures 4 to 7 In some alternative embodiments, at least two protrusions 141 include a first protrusion 1411 and a second protrusion 1412, wherein the first protrusion 1411 is located on the side of the second protrusion 1412 opposite to the pole post 111.

[0096] The gap B2 between the second protrusion 1412 and the adapter piece 130 is smaller than the gap B1 between the second protrusion 1412 and the adapter piece 130.

[0097] It should be noted that by designing a smaller gap between the second protrusion 1412 and the adapter piece 130, the extension of the end of the tab 121 toward the pole post 111 can be blocked more effectively, reducing the possible movement of the tab 121 during the welding process and improving the stability and reliability of the welding.

[0098] Specifically, because the second protrusion 1412 provides a stronger physical barrier, the end of the tab 121 is less likely to contact the terminal post 111, thereby reducing the risk of poor soldering and short circuits and improving the electrical performance and safety of the battery 100.

[0099] In other words, the first protrusion 1411 blocks part of the end of the tab 121, so that the end of the other part of the tab 121 is not blocked by the first protrusion 1411. Due to the addition of the second protrusion 1412, the unblocked part is blocked again by the second protrusion 1412. By setting the first protrusion 1411 and the second protrusion 1412 of different lengths at intervals, a more reliable blocking method is achieved.

[0100] In some embodiments, the gap size between the second protrusion 1412 and the adapter piece 130, and the gap size between the first protrusion 1411 and the adapter piece 130, can be flexibly adjusted according to the specific design requirements of the battery 100 to adapt to different application scenarios and technical requirements.

[0101] like Figure 8 As shown, in some alternative embodiments, the end of the welding area facing the pole post 111 has a gap L between it and the pole post 111, and the gap L is greater than or equal to the gap A.

[0102] In some embodiments, L can be any value within one of 7.5mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm, 22mm, 24mm, 25mm, 26mm, and 28mm, without further limitation.

[0103] It should be noted that by ensuring that the gap L is greater than or equal to the gap A, the extension of the end of the tab 121 toward the pole post 111 can be blocked more effectively, limiting the movement of the tab 121 during the welding process and preventing it from contacting the pole post 111, thereby reducing the risk of short circuits and poor soldering.

[0104] The larger gap L provides additional space buffer, reducing the displacement of the tab 121 during welding due to thermal expansion or other factors, and improving the stability and reliability of welding.

[0105] In some embodiments, the dimensions of the gap L are not limited in this application; it is sufficient that the gap A is less than the gap L.

[0106] Figure 9 This is an assembly cross-sectional view of the second type of insulating component, adapter piece, and terminal post in the battery according to the application embodiment. Figure 10 This is an assembly cross-sectional view of the third type of insulating component, adapter piece, and terminal post in the battery of the application embodiment.

[0107] like Figure 9 and Figure 10As shown, in some alternative embodiments, the protrusion 141 includes a body 1401 and an abutment portion 1402. The body 1401 is disposed on the insulating member 140, and the abutment portion 1402 is connected to the body 1401 and extends toward the adapter piece 130.

[0108] It should be noted that by extending the contact portion 1402, the end of the tab 121 is effectively blocked, preventing it from contacting the terminal post 111 during the welding process, reducing the risk of poor soldering and short circuit, and improving the electrical performance and safety of the battery 100.

[0109] In some embodiments, the size and shape of the body 1401 and the abutment portion 1402 can be adjusted flexibly according to the specific design requirements of the battery 100 to adapt to different application scenarios and technical requirements.

[0110] In some embodiments, the body 1401 and the abutment portion 1402 are connected by an integral connection. In other embodiments, the body 1401 and the abutment portion 1402 may also be connected by other connection methods. As long as the connection method can fix the body 1401 and the abutment portion 1402, the purpose of this embodiment can be achieved. Here, the connection method of the body 1401 and the abutment portion 1402 is not limited.

[0111] In some embodiments, the protrusion 141 and the insulating element 140 are integrally formed.

[0112] like Figure 8 As shown, in some alternative embodiments, the abutment portion 1402 is flush with the side facing the adapter piece 130.

[0113] like Figure 9 As shown, the contact portion 1402 has an inclined surface that faces away from the pole post 111.

[0114] like Figure 10 As shown, the contact portion 1402 has an inclined surface facing the pole post 111.

[0115] It should be noted that the flush abutment portion 1402 is easy to process and manufacture, while the abutment portion 1402 with an inclined surface can reduce costs while ensuring blocking strength.

[0116] In some embodiments, the inclined surface may face the pole post 111.

[0117] In other embodiments, the inclined surface is located on the side of the abutment portion 1402 away from the terminal post 111, and the inclined surface orderly blocks the end of the tab 121. By selecting whether the inclined surface faces or faces away from the terminal post 111, it can be flexibly adjusted according to the specific design requirements of the battery 100 to adapt to different application scenarios and technical requirements.

[0118] In some alternative implementations, the gap A is greater than or equal to 7 mm and less than or equal to 26 mm; and / or,

[0119] The gap B is greater than or equal to 0.2 mm and less than or equal to 1.5 mm.

[0120] It should be noted that by adjusting the dimensions of A and B respectively, it is possible to avoid situations such as the end of the tab 121 overlapping with the pole post 111, or the protrusion 141 interfering with the adapter piece 130, which could lead to poor welding between the adapter piece 130 and the pole post 111.

[0121] In some embodiments, the gap A can be any value within one of 7mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm, 22mm, 23mm, 24mm, and 26mm, without further limitation.

[0122] In some embodiments, the gap B can be any value within one of 0.2mm, 0.3mm, 0.4mm, 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, 1mm, 1.1mm, 1.2mm, 1.3mm, 1.4mm, and 1.5mm, without being overly restricted here.

[0123] The battery provided in this application embodiment includes: a casing having a receiving cavity and a terminal post on the casing; a battery cell located in the receiving cavity and having a tab; an adapter plate located between the terminal post and the battery cell, with the tab connected to the upper surface of the adapter plate; and an insulating member located between the adapter plate and the top of the casing, with a protrusion on the side of the insulating member facing the adapter plate.

[0124] The raised design prevents the tabs from extending to the welding point between the terminal and the adapter during the welding process, thus effectively avoiding incomplete or poor welding at the welding point, thereby improving the battery's electrical performance and safety. By ensuring the quality of the welding point, resistance and heat generation are reduced, which helps to improve the battery's thermal management performance, reduce the risk of overheating, and improve battery safety.

[0125] In addition, this application also provides an electronic device including the battery 100 described above.

[0126] It should be noted that the specific structure of battery 100 will not be discussed in detail here; please refer to the above.

[0127] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0128] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0129] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A battery (100), characterized in that, include: The housing (110) has a receiving cavity, and the housing (110) is provided with a pole post (111); A battery cell (120) is located within the receiving cavity, and the battery cell (120) has tabs (121); An adapter plate (130) is located between the terminal post (111) and the battery cell (120), and the tab (121) is connected to the upper surface of the adapter plate (130); An insulating member (140) is disposed between the top of the adapter piece (130) and the housing (110), and the insulating member (140) has a protrusion (141) on the side facing the adapter piece (130).

2. The battery (100) according to claim 1, characterized in that, The tab (121) is welded to the upper surface of the adapter piece (130) to form a welding area; Along the width direction of the battery (100), there is a gap A between the end of the welding area facing the pole post (111) and the end of the tab (121); Along the height direction of the battery (100), there is a gap B between the protrusion (141) and the adapter piece (130), and the gap A and the gap B satisfy: 3mm 2 ≤A*B≤35mm 2 .

3. The battery (100) according to claim 2, characterized in that, The insulating member (140) has a groove (142) on the side facing the adapter piece (130), the groove (142) is used to accommodate the tab (121), and the protrusion (141) is located in the groove (142).

4. The battery (100) according to any one of claims 1-3, characterized in that, The protrusion (141) is at least two, and the at least two protrusions (141) are spaced apart from the insulating member (140).

5. The battery (100) according to claim 4, characterized in that, At least two of the protrusions (141) include a first protrusion (1411) and a second protrusion (1412), wherein the first protrusion (1411) is located on the side of the second protrusion (1412) opposite to the pole post (111); The gap B2 between the second protrusion (1412) and the adapter piece (130) is smaller than the gap B1 between the second protrusion (1412) and the adapter piece (130).

6. The battery (100) according to claim 2 or 3, characterized in that, The welding area has a gap L between the end of the welding area facing the pole post (111) and the pole post (111), and the gap L is greater than or equal to the gap A.

7. The battery (100) according to any one of claims 1-3, characterized in that, The protrusion (141) includes a body (1401) and an abutment (1402). The body (1401) is disposed on the insulating member (140), and the abutment (1402) is connected to the body (1401) and extends toward the adapter piece (130).

8. The battery (100) according to claim 7, characterized in that, The abutment portion (1402) is flush with the side facing the adapter piece (130); or, The abutment portion (1402) has an inclined surface, which faces the pole post (111) or the inclined surface is away from the pole post (111).

9. The battery (100) according to claim 2, characterized in that, The gap A is greater than or equal to 7 mm and less than or equal to 26 mm; and / or, The gap B is greater than or equal to 0.2 mm and less than or equal to 1.5 mm.

10. An electronic device, characterized in that, Includes the battery (100) as described in any one of claims 1 to 9.

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