Aluminum plastic film, aluminum plastic film shell and soft package battery
By setting staggered notches and creases on the aluminum-plastic film body and using grippers to widen the opening, the problem of easy suction cup detachment is solved, realizing an efficient and convenient liquid injection process and reducing product defect rate and contamination risk.
Patent Information
- Application Number
- CN202520198958.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-08
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2035-02-08
AI Technical Summary
Traditional aluminum-plastic film shells are prone to detachment during the liquid injection process due to the flaring of the opening by the suction cup, resulting in a high product defect rate and easy contamination of the liquid injection process.
The aluminum-plastic film body is designed with a first and second misaligned notch on the first and second sides respectively. Combined with the crease and punch structure, the opening is widened by a clamp.
It improves the efficiency of flaring and the product qualification rate, reduces injection contamination, and enhances the convenience of injection.
Smart Images
Figure CN223956665U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application relates to the technical field of battery manufacturing, in particular to an aluminum plastic film, an aluminum plastic film shell and a soft package battery. BACKGROUND
[0002] The soft package battery is widely applied to various electronic devices, including electric bicycles, electric motorcycles, electric vehicles, military equipment, aerospace and the like, due to the advantages of high energy density, long service life and good safety performance.
[0003] The shell of the soft package battery is generally made of an aluminum plastic film, and the manufacturing of the soft package battery generally comprises the procedures of slurry preparation, coating, rolling, sheet preparation, sheet stacking, liquid injection, activation, formation and capacity distribution, wherein the liquid injection procedure is to inject electrolyte into the aluminum plastic film shell, and the air bag of the aluminum plastic film shell needs to be flared during the liquid injection. UTILITY MODEL CONTENT
[0004] The application provides an aluminum plastic film, an aluminum plastic film shell and a soft package battery, and aims to solve the problem that the aluminum plastic film shell made of the traditional aluminum plastic film with a flat edge can only be flared by a suction cup during the liquid injection procedure, the suction cup is prone to falling off, the product has a high failure rate, and the liquid injection is prone to pollution.
[0005] To solve the above technical problem, the application provides an aluminum plastic film, which comprises an aluminum plastic film body.
[0006] The aluminum plastic film body comprises a first side edge and a second side edge, the first side edge and the second side edge are two opposite edges of the aluminum plastic film body, a plurality of first notches are arranged on the first side edge, a plurality of second notches are arranged on the second side edge, and the first notches and the second notches are arranged in a staggered manner.
[0007] Further, a fold is arranged at the middle part of the aluminum plastic film body, and the fold is parallel to the first side edge and the second side edge.
[0008] Further, a first pit and a second pit are arranged on the surface of the aluminum plastic film body, the first pit is located between the fold and the first side edge, and the second pit is located between the fold and the second side edge.
[0009] Further, the first pit and the second pit are located on the same surface of the aluminum plastic film body.
[0010] Further, the first punch and the second punch are symmetrical about the crease.
[0011] To achieve the above-mentioned utility model purposes, the utility model discloses a third aspect of a soft package battery, the soft package battery includes the aluminium plastic film shell.
[0012] To achieve the above-mentioned utility model purposes, the utility model discloses a third aspect of a soft package battery, the soft package battery includes the aluminium plastic film shell.
[0013] The beneficial effects of the present application are: in the aluminium plastic film provided by the present application, the aluminium plastic film includes an aluminium plastic film body, the aluminium plastic film body includes a first side edge and a second side edge, the first side edge and the second side edge are two opposite edges on the aluminium plastic film body, a plurality of first notches are arranged on the first side edge, a plurality of second notches are arranged on the second side edge, and the first notches and the second notches are arranged in a staggered manner. By arranging the first notches and the second notches in a staggered manner, the external clamping jaw can pass through the first notches to clamp the second side edge, and at the same time, the external clamping jaw can also pass through the second notches to clamp the first side edge, that is, by arranging the first notches and the second notches in a staggered manner, the aluminium plastic film shell made of the aluminium plastic film in the present application can be flared by the clamping jaw, thereby making the liquid injection more efficient and convenient, and also improving the product qualification rate and reducing the liquid injection pollution. BRIEF DESCRIPTION OF DRAWINGS
[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creating any creative labor. Among them:
[0015] Figure 1 is a schematic diagram of the aluminium plastic film of an embodiment of the present application;
[0016] Figure 2 is a schematic diagram of the aluminium plastic film shell of an embodiment of the present application.
[0017] Mark explanation: 100, aluminium plastic film; 110, aluminium plastic film body; 111, first side edge; 112, second side edge; 113, first notch; 114, second notch; 120, crease; 130, first punch; 140, second punch; 200, aluminium plastic film shell; 210, opening; 220, air bag; 230, pre-sealing edge; 231, secondary sealing edge; 300, clamping jaw. DETAILED DESCRIPTION
[0018] In order to make the purposes, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and not intended to limit the present application.
[0019] Those skilled in the art can understand that the singular forms "a", "an" and "the" used herein include plural forms unless specifically stated otherwise. It should be further understood that the use of the term "include" in the specification of the present application means that the presence of a feature, integer, step, operation, element, module, module and / or component, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, modules, modules, components and / or their combinations. It should be understood that when we say that an element is "connected" or "coupled" to another element, it can be directly connected or coupled to the other element, or there can be intermediate elements. In addition, "connected" or "coupled" used herein can include wireless connection or wireless coupling. The phrase "and / or" used herein includes all or any module and all combinations of the associated listed items.
[0020] Those skilled in the art can understand that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as that generally understood by those skilled in the art to which the present application belongs. It should also be understood that terms such as those defined in a general dictionary should be understood to have meanings consistent with those in the context of the prior art, and should not be interpreted in an idealized or overly formal sense unless specifically defined as such.
[0021] As Figure 1 As shown in the drawings, the present application provides an aluminum plastic film 100, which comprises an aluminum plastic film body 110, the aluminum plastic film body 110 comprises a first side edge 111 and a second side edge 112, the first side edge 111 and the second side edge 112 are two opposite edges on the aluminum plastic film body 110, a plurality of first notches 113 are arranged on the first side edge 111, a plurality of second notches 114 are arranged on the second side edge 112, the first notches 113 and the second notches 114 are arranged in a staggered manner 。
[0022] In an embodiment, the aluminum plastic film body 110 is substantially rectangular, and the four edges of the aluminum plastic film body 110 are a first side edge 111, a second side edge 112, a third side edge, and a fourth side edge, wherein the first side edge 111 and the second side edge 112 are opposite edges, and the third side edge and the fourth side edge are opposite edges. A first notch 113 is arranged on the first side edge 111 of the aluminum plastic film body 110, and the first notch 113 penetrates the aluminum plastic film body 110. In another embodiment, the first notch 113 is arranged in a plurality of first notches 113, and the plurality of first notches 113 are arranged along the first side edge 111 at intervals. A second notch 114 is arranged on the second side edge 112 of the aluminum plastic film body 110, and the second notch 114 penetrates the aluminum plastic film body 110. In another embodiment, the second notch 114 is arranged in a plurality of second notches 114, and the plurality of second notches 114 are arranged along the second side edge 112 at intervals. Preferably, the first notch 113 and the second notch 114 are rectangular, and in another embodiment, the first notch 113 and the second notch 114 can also be circular, triangular, or other shapes. The first notch 113 on the first side edge 111 is arranged in a staggered manner with the second notch 114 on the second side edge 112. Through the staggered arrangement of the first notch 113 and the second notch 114, the external clamping jaw can pass through the first notch 113 to clamp the second side edge 112, and at the same time, the external clamping jaw can also pass through the second notch 114 to clamp the first side edge 111. That is, through the staggered arrangement of the first notch 113 and the second notch 114, the aluminum plastic film shell 200 made of the aluminum plastic film 100 in the present application can be flared by the clamping jaw, thereby making the liquid injection more efficient and convenient, and also improving the product qualification rate and reducing the liquid injection pollution.
[0023] As shown in Figure 1 , a fold 120 is arranged at the middle of the aluminum plastic film body 110, and the fold 120 is parallel to the first side edge 111 and the second side edge 112.
[0024] In an embodiment, the fold 120 divides the aluminum plastic film body 110 into two equal parts, and the distance from the first side edge 111 and the second side edge 112 to the fold 120 is equal. The fold 120 is parallel to the first side edge 111 and the second side edge 112, and the fold 120 is perpendicular to the third side edge and the fourth side edge. The arrangement of the fold 120 facilitates symmetrical folding of the aluminum plastic film body 110 along the fold 120.
[0025] As shown in Figure 1 , the surface of the aluminum plastic film body 110 is provided with a first pit 130 and a second pit 140.
[0026] In a specific embodiment, the first and second punch pits 130 and 140 are identical in shape and size, and are rectangular, and in another specific embodiment, the first and second punch pits 130 and 140 can also be other shapes. The first punch pit 130 is arranged between the crease 120 and the first side edge 111, and the second punch pit 140 is arranged between the crease 120 and the second side edge 112, and the first and second punch pits 130 and 140 are located on the same surface of the aluminum-plastic film body 110. When the aluminum-plastic film body 110 is folded along the crease 120, the first and second punch pits 130 and 140 are aligned, so that the first and second punch pits 130 and 140 are combined to form a complete accommodating cavity for accommodating the battery cell.
[0027] As shown in Figure 2 the aluminum-plastic film 100 is folded along the crease 120, and the third and fourth side edges and the crease 120 are edge-sealed, and then an aluminum-plastic film shell 200 with an open edge 210 is obtained, the air bag 220 is located between the accommodating cavity of the battery cell and the open edge 210, the first and second side edges 111 and 112 are located at the open edge 210, the second notch 114 is provided with a pre-seal 230, and the air bag 220 is provided with a secondary seal 231 near the accommodating cavity. Because the first notch 113 is arranged on the first side edge 111, the second notch 114 is arranged on the second side edge 112, and the first and second notches 113 and 114 are arranged in a staggered manner, so that the external clamping jaws 300 can pass through the first side edge 111 to clamp the second side edge 112, and the other external clamping jaws 300 can pass through the second side edge 112 to clamp the first side edge 111. When the external clamping jaws 300 clamp the first and second side edges 111 and 112, the two clamping jaws 300 move in opposite directions, and the air bag 220 is expanded, which facilitates the injection of electrolyte into the aluminum-plastic film shell 200. In summary, by arranging the first and second notches 113 and 114 on the aluminum-plastic film 100, the aluminum-plastic film shell 200 made of the aluminum-plastic film 100 in the application can be expanded by the clamping jaws 300, compared with the aluminum-plastic film shell 200 made of the traditional aluminum-plastic film 100 which can only expand the air bag 220 by suction, and the expansion by the clamping jaws 300 can effectively improve the product yield and reduce the liquid injection pollution.
[0028] In order to achieve the purpose of the application, in an embodiment, the application further provides a soft package battery, which comprises the above-mentioned aluminum-plastic film shell 200. After the liquid injection operation is completed, the pre-seal 230 is pre-sealed to seal the aluminum-plastic film shell 200, and the air bag 220 is used to accommodate the gas generated in the formation process of the battery. Then, the secondary seal 231 is pre-sealed again, and the air bag 220 is cut off to obtain a soft package battery product.
[0029] In the present embodiment, the soft package battery can be of any type, and it can be understood that the technical solutions described in the embodiments of the present application are applicable to all soft package batteries including the aluminum-plastic film shell 200 described above.
[0030] The above is only the preferred embodiment of the present application, and does not limit the patent scope of the present application, and any equivalent structure or equivalent flow transformation using the content of the present application specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection scope of the present application.
Claims
1. An aluminum-plastic film, characterized in that, The aluminum plastic film body comprises a first side edge and a second side edge, the first side edge and the second side edge are two opposite edges on the aluminum plastic film body, a plurality of first notches are arranged on the first side edge, a plurality of second notches are arranged on the second side edge, and the first notches and the second notches are arranged in a staggered manner. The aluminum plastic film body is provided with a fold line in the middle part, and the fold line is parallel to the first side edge and the second side edge. The surface of the aluminum plastic film body is provided with a first pit and a second pit, the first pit is located between the fold line and the first side edge, and the second pit is located between the fold line and the second side edge.
2. The aluminum laminate film according to claim 1, characterized by The first pit and the second pit are located on the same surface of the aluminum plastic film body.
3. The aluminum laminate film according to claim 2, characterized by The first pit and the second pit are symmetrical about the fold line.
4. The aluminum laminate film according to claim 3, characterized by The first pit and the second pit are arranged adjacent to the fold line.
5. The aluminum laminate film according to claim 4, characterized by The shapes of the first pit and the second pit are matched, so that the first pit and the second pit can be spliced together.
6. The aluminum laminate film according to claim 5, characterized by The aluminum plastic film comprises the aluminum plastic film as claimed in any one of claims 1 to 5.
7. The aluminum laminate film according to claim 6, wherein The aluminum plastic film shell comprises the aluminum plastic film as claimed in claim 8.
8. An aluminum laminate casing characterized by comprising: 9. A pouch battery, characterized by,