Adapter, battery cell, and battery
By designing a thinning section for the adapter piece and utilizing a blowing device, the problem of adapter piece adhesion was solved, improving the quality and efficiency of battery manufacturing, reducing costs, and ensuring the safety and reliability of individual battery cells.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU ZENIO NEW ENERGY BATTERY TECH CO LTD
- Filing Date
- 2025-08-11
- Publication Date
- 2026-07-03
AI Technical Summary
During battery manufacturing, adjacent layers of adapter plates may stick together due to oil stains, static electricity, or other phenomena, affecting production quality, efficiency, and cost.
Design an adapter plate including a thinning section. By blowing air through a blower on the wind-receiving side of the adapter plate, the adhesion between adjacent adapter plates is reduced. The thinning section changes the airflow conditions and reduces the degree of adhesion.
It improves the production quality, efficiency, and cost of the battery manufacturing process, ensures the quality of electrode welding, and enhances the safety and reliability of individual battery cells.
Smart Images
Figure CN224458495U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of battery manufacturing technology, and more specifically, to an adapter, a battery cell, and a battery. Background Technology
[0002] In the battery manufacturing process, a feeder device is needed to supply feeder sheets to the battery assembly station. Each cycle, a robotic arm picks up the topmost feeder sheet from a stack and transfers it to the battery assembly station. However, due to potential oil stains or static electricity between adjacent layers of feeder sheets, adhesion can occur. When the robotic arm picks up the topmost feeder sheet, the next-to-top feeder sheet is also sucked up, reducing production quality, efficiency, and costs. Utility Model Content
[0003] Therefore, this application proposes an adapter sheet, a battery cell, and a battery, which can improve the poor adhesion between two adjacent adapter sheets and improve the production quality, production efficiency, and production cost of the battery manufacturing process.
[0004] The adapter sheet of the first aspect of this application includes a first side and a second side along the thickness direction. The first side has a tab contact area, and the second side has a post contact area. The adapter sheet includes a body and a thinning portion. The thinning portion includes a connecting side and a wind-receiving side. The connecting side is connected to the body, and the wind-receiving side is located at the edge of the adapter sheet. The thickness of the thinning portion is less than the thickness of the body.
[0005] Optionally, the interior of the tab contact area includes a tab welding area, and the interior of the pole contact area includes a pole welding area. Along the length direction of the adapter piece, the thinning portion is disposed on one side of the pole welding area, and the projections of the pole welding area and the thinning portion in the thickness direction of the adapter piece do not coincide.
[0006] Optionally, the thickness of the thinned portion gradually decreases from the connecting side to the wind-receiving side.
[0007] Optionally, the thinning portion includes a first surface on the first side of the adapter piece, and the thinning portion includes a second surface on the second side of the adapter piece. The first surface is flush with the body, and the second surface gradually extends towards the first surface in the direction from the connecting side to the windward side.
[0008] Optionally, the second surface is one of a plane, a smooth arc surface, a multi-segment surface, or a stepped transition surface.
[0009] Optionally, the thinning portion is provided in one part, and in the width direction of the adapter piece, the thinning portion extends to at least one edge of the adapter piece.
[0010] Optionally, multiple thinning portions are provided, and the multiple thinning portions are spaced apart in the width direction of the adapter piece.
[0011] Optionally, the distance between the connecting side and the wind-receiving side is W, the thickness of the wind-receiving side is D1, and the thickness of the main body is D, satisfying:
[0012] 0.15≤(D-D1) / W≤2.
[0013] The battery cell of the second aspect of this application includes: a housing; an electrode assembly disposed inside the housing, including tabs; a terminal post disposed in the housing; and an adapter piece as described in the first aspect of this application, wherein the tab contact area is electrically connected to the tab, and the terminal post contact area is electrically connected to the terminal post.
[0014] The battery in the third aspect embodiment of this application includes the battery cell described in the second aspect embodiment of this application.
[0015] Compared with existing technologies, this solution has the following advantages:
[0016] The adapter sheet in this embodiment of the application has a thinning part, the thickness of which is less than the thickness of the body. When the material handling robot grabs the topmost adapter sheet of a stack of adapter sheets, the external blowing device blows air onto the adapter sheet from the air-receiving side. The thinning part is used to change the air-receiving condition of the adapter sheet, thereby reducing the degree of adhesion between two adjacent layers of adapter sheets. This can improve the poor adhesion between two adjacent layers of adapter sheets and improve the production quality, production efficiency and production cost of the battery manufacturing process.
[0017] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description
[0018] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 This is a first-view structural schematic diagram of the adapter plate provided in an embodiment of this application;
[0020] Figure 2This is a second-view structural schematic diagram of the adapter plate provided in an embodiment of this application;
[0021] Figure 3 A third-view structural schematic diagram of the adapter plate provided in an embodiment of this application;
[0022] Figure 4 This is a schematic diagram of the structure of the second surface of the adapter provided in the embodiments of this application;
[0023] Figure 5 This is a schematic diagram of the structure of the second surface of a first type of adapter provided in an embodiment of this application;
[0024] Figure 6 This is a schematic diagram of the structure of the second surface of a second form of the adapter provided in the embodiments of this application;
[0025] Figure 7 This is a schematic diagram of the structure of the second surface of a third type of adapter provided in an embodiment of this application;
[0026] Figure 8 This is a schematic diagram of the structure of the second surface of a fourth type of adapter provided in an embodiment of this application;
[0027] Figure 9 This is a schematic diagram of the structure of the thinned portion of the first type of adapter sheet provided in the embodiments of this application;
[0028] Figure 10 This is a schematic diagram of the structure of the thinned portion of the adapter sheet provided in the embodiments of this application.
[0029] Icons: 100 - Adapter piece; 110 - Body; 111 - Third surface; 112 - Fourth surface; 120 - Thinning section; 121 - Connecting side; 122 - Wind-receiving side; 123 - First surface; 124 - Second surface; 1241 - First subplane; 1242 - Second subplane; 131 - First side; 132 - Second side; 133 - Tab contact area; 1331 - Tab welding area; 134 - Post contact area; 1341 - Post welding area. Detailed Implementation
[0030] 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, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0031] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.
[0032] like Figure 1 , Figure 2 and Figure 3 As shown, in some embodiments of this application, the adapter piece 100 includes a first side 131 and a second side 132 along the thickness direction. The first side 131 forms an electrode contact area 133, and the second side 132 forms an electrode contact area 134. The adapter piece 100 includes a body 110 and a thinning portion 120. The thinning portion 120 includes a connecting side 121 and a wind-receiving side 122. The connecting side 121 is connected to the body 110, and the wind-receiving side 122 is located at the edge of the adapter piece 100. The thickness of the thinning portion 120 is less than the thickness of the body 110.
[0033] The adapter 100 is an important component of the battery cell, including a tab contact area 133 and a terminal contact area 134. The tab contact area 133 is used to fit with the tab, and the terminal contact area 134 is used to fit with the terminal, so as to realize the electrical connection between the tab and the terminal.
[0034] The thickness of the adapter piece 100 extends along the third direction Z, the length extends along the first direction X, and the width extends along the second direction Y. The first direction X, the second direction Y, and the third direction Z are arranged perpendicularly to each other. A stack of adapter pieces 100 is stacked along the third direction Z on the material tray of the feeding device. The picking robot grabs the top adapter piece 100 in each cycle, and the external blowing device blows air to the receiving side 122.
[0035] The adapter sheet 100 in this embodiment of the application is provided with a thinning portion 120. The thickness of the thinning portion 120 is less than the thickness of the body 110. When the material handling robot grabs the topmost adapter sheet 100 of a stack of adapter sheets 100, the external blowing device blows air from the wind-receiving side 122 to the adapter sheet 100. The thinning portion 120 is used to change the wind-receiving condition of the adapter sheet 100, thereby reducing the degree of adhesion between two adjacent layers of adapter sheets 100. This can improve the poor adhesion between two adjacent layers of adapter sheets 100, and improve the production quality, production efficiency and production cost of the battery manufacturing process.
[0036] In some embodiments of this application, the thinning portion 120 is disposed on one side of the body 110 along the first direction X, the connecting side 121 is connected to the body 110 along the first direction X, the wind-receiving side 122 is located on the edge of the adapter piece 100 along the first direction X, and the external blowing device blows air towards the wind-receiving side 122 along the first direction X.
[0037] This configuration allows for an increase in the angle at which the top-side adapter plate 100 is blown up under the same airflow, further reducing the likelihood of adjacent adapter plates 100 sticking together.
[0038] In other embodiments, the thinning portion 120 may also be disposed on one side of the body 110 along another direction, and the connecting side 121 may also be connected to the body 110 along another direction.
[0039] like Figure 2 and Figure 3 As shown, in some embodiments of this application, the interior of the tab contact area 133 includes a tab welding area 1331, and the interior of the pole contact area 134 includes a pole welding area 1341. Along the length direction of the adapter piece 100 (i.e., the first direction X), the thinning portion 120 is disposed on one side of the pole welding area 1341. The projections of the pole welding area 1341 and the thinning portion 120 in the thickness direction of the adapter piece 100 (i.e., the projections on the XY plane) do not coincide.
[0040] The tab welding area 1331 is the welding area between the tab and the adapter piece 100, and the projection of the tab welding area 1331 on the XY plane is located inside the tab contact area 133; the pole welding area 1341 is the welding area between the pole and the adapter piece 100, and the projection of the pole welding area 1341 on the XY plane is located inside the pole contact area 134.
[0041] This configuration ensures that the thickness of the electrode welding area 1341 remains constant, guaranteeing the welding quality between the electrode and the adapter piece 100, thereby improving the safety performance and reliability of the battery cell.
[0042] In some embodiments of this application, the projection of the tab welding area 1331 and the thinning portion 120 in the thickness direction of the adapter piece 100 (i.e., the projection on the XY plane) do not coincide.
[0043] This configuration ensures that the thickness of the welding area between the adapter piece 100 and the electrode remains constant, thereby guaranteeing welding quality.
[0044] It is understood that the tab contact area 133 can be entirely disposed within the body 110 or extend to the thinned portion 120; the post contact area 134 can be entirely disposed within the body 110 or extend to the thinned portion 120, to accommodate the assembly space requirements of the adapter piece 100. Preferably, both the tab contact area 133 and the post contact area 134 are disposed within the body 110, improving the contact reliability between the component and the adapter piece 100, thereby improving the conductivity of the adapter piece 100.
[0045] In some embodiments of this application, the thickness of the thinned portion 120 gradually decreases from the connecting side 121 to the wind-receiving side 122.
[0046] The thickness of the thinned portion 120 extends along a third direction Z, with the connecting side 121 and the wind-receiving side 122 located on opposite sides of the thinned portion 120 along the first direction X. The thinned portion 120 includes a first surface 123 on the first side 131 of the adapter piece 100, and a second surface 124 on the second side 132 of the adapter piece 100. Along the direction from the connecting side 121 to the wind-receiving side 122, the distance between the first surface 123 and the second surface 124 gradually decreases.
[0047] This configuration allows airflow to be guided from the wind-receiving side 122 to the connecting side 121, blowing up the upper adapter plate 100 and improving the anti-sticking effect of the adapter plate 100.
[0048] like Figure 1 As shown, in some embodiments of this application, the first surface 123 is flush with the body 110, and the second surface 124 gradually extends towards the first surface 123 in the direction from the connecting side 121 toward the windward side 122.
[0049] The main body 110 includes a third surface 111 on the first side 131 of the adapter piece 100, and a fourth surface 112 on the second side 132 of the adapter piece 100. The third surface 111 and the fourth surface 112 are arranged parallel to each other. The first surface 123 is flush with the third surface 111, that is, the first side 131 of the adapter piece 100 is a plane. In the direction close to the windward side 122, one end of the second surface 124 is connected to the fourth surface 112, and the other side extends obliquely and gradually approaches the first surface 123.
[0050] With this configuration, one side of the adapter piece 100 can be kept flat, and the thickness of the thinning portion 120 can be gradually reduced, which facilitates the reliable stacking of multiple adapter pieces 100 and simplifies the processing of the adapter piece 100.
[0051] In other embodiments, the first surface 123 may gradually extend towards the second surface 124, or both the first surface 123 and the second surface 124 may extend at an angle relative to the surface of the body 110, thereby achieving a gradual reduction in the thickness of the thinning portion 120.
[0052] In some embodiments of this application, the second surface 124 is one of a plane, a smooth arc surface, a multi-segment surface, or a stepped transition surface.
[0053] like Figure 4As shown, the second surface 124 is a plane, and the second surface 124 is parallel to the first surface 123. The first surface 123 is flush with the third surface 111, and the second surface 124 is concave to the fourth surface 112.
[0054] like Figure 5 As shown, the second surface 124 is a plane, the first surface 123 is flush with the third surface 111, one end of the second surface 124 is connected to the fourth surface 112, and the other side extends obliquely toward the direction close to the first surface 123.
[0055] like Figure 6 As shown, the second surface 124 is a smooth arc surface, the first surface 123 is flush with the third surface 111, one end of the second surface 124 is connected to the fourth surface 112, and the other side extends obliquely towards the direction close to the first surface 123. The second surface 124 is bent away from the first surface 123.
[0056] like Figure 7 As shown, the second surface 124 is a multi-segment surface, the first surface 123 and the third surface 111 are flush, one end of the second surface 124 is connected to the fourth surface 112, and the second surface 124 includes first sub-planes 1241 connected in sequence, and the slope of the multiple first sub-planes 1241 gradually increases towards the windward side 122.
[0057] like Figure 8 As shown, the second surface 124 is a stepped transition surface, the first surface 123 is flush with the third surface 111, one end of the second surface 124 is connected to the fourth surface 112, the second surface 124 includes second sub-planes 1242 connected in sequence, the second sub-planes 1242 are all parallel to the first surface 123, and multiple first sub-planes 1241 gradually approach the first surface 123 in the direction closer to the windward side 122.
[0058] like Figure 5 As shown, in some embodiments of this application, the distance between the connecting side 121 and the wind-receiving side 122 is W, the thickness of the wind-receiving side 122 is D1, and the thickness of the body 110 is D, satisfying:
[0059] 0.15≤(D-D1) / W≤2.
[0060] Preferably, 0.176≤(D-D1) / W≤1.732, that is, the tilt angle α between the second surface 124 and the body 110 satisfies: 10°≤α≤60°.
[0061] Limiting the above parameters to the above range can improve the anti-adhesion effect of the adapter piece 100, and also ensure the structural strength and conductivity of the adapter piece 100.
[0062] In some embodiments of this application, a thinning portion 120 is provided, which extends to at least one edge of the adapter piece 100 in the width direction of the adapter piece 100.
[0063] like Figure 3 As shown, a thinning portion 120 extends along the second direction Y to both sides of the adapter piece 100; a thinning portion 120 may also extend along the second direction Y to one side of the adapter piece 100.
[0064] This configuration increases the wind-receiving area of the wind-receiving side 122 and improves the anti-sticking effect of the adapter plate 100.
[0065] like Figure 9 As shown, in some other embodiments of this application, the thinning portion 120 is centrally located in the width direction of the adapter piece 100.
[0066] like Figure 9 As shown, in some embodiments of this application, the arrangement range of the thinning portion 120 in the width direction (i.e., the second direction Y) of the adapter piece 100 is L1, the width of the adapter piece 100 is L, and 2 / 3L≤L1≤L.
[0067] Limiting the above parameters to the above range can improve the anti-adhesion effect of the adapter piece 100, while ensuring the structural strength and conductivity of the adapter piece 100.
[0068] like Figure 10 As shown, in some embodiments of this application, multiple thinning portions 120 are provided, and the multiple thinning portions 120 are spaced apart in the width direction of the adapter piece 100.
[0069] Multiple thinning sections 120 are spaced apart along the second direction Y. Each thinning section 120 includes a connecting side 121 and a wind-receiving side 122. The connecting side 121 includes a first edge, a second edge, and a third edge. The first edge is connected to the body 110 along the first direction X. The second edge and the third edge are arranged opposite to each other along the second direction Y. Both the second edge and the third edge are connected to the body 110 along the second direction Y. The wind-receiving side 122 extends along the first direction X to the edge of the adapter piece 100.
[0070] This design allows for multiple airflow points along the edge of the adapter plate 100, improving the airflow effect and thus enhancing the anti-sticking effect of the adapter plate 100.
[0071] Some embodiments of this application include a battery cell comprising a housing, an electrode assembly, a terminal post, and an adapter plate 100. The electrode assembly is disposed inside the housing and includes a tab. The terminal post is disposed in the housing. The tab contact area 133 of the adapter plate 100 is electrically connected to the tab, and the terminal post contact area 134 is electrically connected to the terminal post.
[0072] The batteries in some embodiments of this application include the battery cells of the embodiments of this application.
[0073] It is understood that, due to the characteristics of the adapter piece 100 in this application embodiment, the battery cells and batteries in this application embodiment can improve the defective phenomenon of adhesion of the adapter piece 100 during the manufacturing process, thereby improving production quality, production efficiency and production cost.
[0074] It should be noted that, where there is no conflict, the features in the embodiments of this application can be combined with each other.
[0075] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A tab, characterized in that The adapter plate (100) includes a first side (131) and a second side (132) along the thickness direction. The first side (131) has a tab contact area (133), and the second side (132) has a pole contact area (134). The adapter plate (100) includes a body (110) and a thinning portion (120). The thinning portion (120) includes a connecting side (121) and a wind-receiving side (122). The connecting side (121) is connected to the body (110), and the wind-receiving side (122) is located at the edge of the adapter plate (100). The thickness of the thinning portion (120) is less than the thickness of the body (110).
2. The adapter plate of claim 1, wherein, The interior of the tab contact area (133) includes a tab welding area (1331), and the interior of the pole contact area (134) includes a pole welding area (1341). Along the length direction of the adapter piece (100), the thinning portion (120) is disposed on one side of the pole welding area (1341). The projections of the pole welding area (1341) and the thinning portion (120) in the thickness direction of the adapter piece (100) do not coincide.
3. The adapter plate of claim 2, wherein, The thickness of the thinned portion (120) gradually decreases from the connecting side (121) to the wind-receiving side (122).
4. The adapter plate of claim 3, wherein, The thinning portion (120) includes a first surface (123) on the first side (131) of the adapter piece (100), and the thinning portion (120) includes a second surface (124) on the second side (132) of the adapter piece (100). The first surface (123) is flush with the body (110), and the second surface (124) gradually extends towards the first surface (123) in the direction from the connecting side (121) toward the wind-receiving side (122).
5. The adapter plate of claim 4, wherein, The second surface (124) is one of the following: a plane, a smooth arc surface, a multi-segment surface, or a stepped transition surface.
6. The adapter plate of claim 2, wherein, The thinning portion (120) is provided, and in the width direction of the adapter piece (100), the thinning portion (120) extends to at least one edge of the adapter piece (100).
7. The adapter plate according to claim 2, characterized in that, Multiple thinning portions (120) are provided, and the multiple thinning portions (120) are spaced apart in the width direction of the adapter piece (100).
8. The adapter plate of claim 1, wherein, The distance between the connecting side (121) and the wind-receiving side (122) is W, the thickness of the wind-receiving side (122) is D1, and the thickness of the body (110) is D, satisfying: 0.15≤(D-D1) / W≤2.
9. A battery cell characterized by, include: shell; An electrode assembly, disposed inside the housing, includes electrode tabs; The pole post is disposed on the outer casing; In the adapter (100) as described in any one of claims 1 to 8, the tab contact area (133) is electrically connected to the tab, and the post contact area (134) is electrically connected to the post.
10. A battery, characterized by Includes the battery cell as described in claim 9.