Battery cell for portable electric two-wheeled vehicle
By designing a battery cell structure with a thin shell and rationally distributed electrodes, the problems of battery cell grouping complexity and high-rate discharge requirements for lightweight electric two-wheeled vehicles were solved, and the safety and test passability of the battery cells were achieved.
Patent Information
- Application Number
- CN202422724245.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-08
- Publication Date
- 2025-10-14
- Estimated Expiration
- 2034-11-08
AI Technical Summary
The battery cell assembly process of existing lightweight electric two-wheeled vehicles is complex, cannot meet the needs of high-rate discharge and cannot pass the needle penetration test.
Design a thin shell and reasonably distributed electrode parts, so that the battery shell thickness is ≤12mm, length is ≤380mm, width is ≤63mm, and the ratio of electrode width to shell width is ≥50%. Use a semi-solid or solid material system, and the electrode parts are installed at both ends of the energy storage component.
The battery cell grouping process has been simplified to meet the needs of high-rate discharge, and the battery cell safety performance and the rationality of current field distribution have been improved by passing the needle penetration test.
Smart Images
Figure CN223436593U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to electric two -wheeled vehicle field, specifically a kind of for light electric two -wheeled vehicle's electric core. BACKGROUND
[0002] In prior art, electric core mainly has three kinds of cylindrical single-edge tab soft package small capacity electric core and square hard shell electric core, wherein the electric core used in light electric two -wheeled vehicle field is mostly cylindrical electric core or single-edge tab soft package small capacity electric core, there is complex grouping process, cannot meet the demand of large rate discharge, and cannot pass needle test and other problems.
[0003] And square hard shell electric core is mainly applied to new energy vehicle, to meet the use of new energy vehicle, square hard shell electric core in prior art is above 90mm in width, above 400mm in length, above 60Ah in capacity, larger surface area is to ensure the stability of its structure and process to make electric core thickness above 13mm, although it can pass needle test, but the electric core of this size cannot be applied to light electric two -wheeled vehicle. UTILITY MODEL CONTENT
[0004] Utility model aims to provide a kind of for light electric two -wheeled vehicle's electric core, by the design of shell size and electrode distribution makes that electric core can be used in light electric two -wheeled vehicle, solve the complex grouping process of electric core of prior art light electric two -wheeled vehicle, cannot meet the demand of large rate discharge, and cannot pass needle test and other problems.
[0005] The technical scheme of the utility model is: a kind of for light electric two -wheeled vehicle's electric core comprising: shell, electric energy storage piece, first electrode piece and second electrode piece.
[0006] The thickness size of the shell is ≤12mm, its length size is ≤380mm, and its width size is ≤63mm.
[0007] The electric energy storage piece is arranged in the shell, and the first electrode piece and the second electrode piece are respectively installed at the two ends of the electric energy storage piece, and the first electrode piece and the second electrode piece extend to the outside through the shell.
[0008] In further embodiments, the thickness size of the shell is between 5 and 12mm.
[0009] In further embodiments, the length size of the shell is between 260 and 380mm.
[0010] In further embodiments, the width size of the shell is between 53 and 63mm.
[0011] In a further embodiment, the first electrode member and the second electrode member are respectively installed at two ends of the length direction of the electric energy storage member.
[0012] In a further embodiment, the capacity of the electric energy storage member is between 13 Ah and 25 Ah.
[0013] In a further embodiment, the ratio of the width of the first electrode member and the second electrode member to the width of the shell is greater than or equal to 50%.
[0014] In a further embodiment, the electric energy storage member is a semi-solid or solid material system.
[0015] The beneficial effects of the utility model are: the application can make the electric core be used for the light electric two-wheeled vehicle through the shell size design and the first electrode member and the second electrode member distribution design, the thickness size of the shell can be smaller under the condition of guaranteeing the structural strength of the electric core through the size design of length and width, the electric core center temperature can be rapidly diffused outward, the electric core safety performance is enhanced, the electric core of the light electric two-wheeled vehicle can pass the needle test, the first electrode member and the second electrode member are respectively installed at two ends of the electric energy storage member, the current field distribution rationality can be met when the electric core is charged and discharged at a large rate, the electric core grouping process of the light electric two-wheeled vehicle is simple, the large rate discharge demand can be met, and the problems that the electric core of the light electric two-wheeled vehicle in the prior art has a complex grouping process, cannot meet the large rate discharge demand, and cannot pass the needle test are solved. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 It is the front view cross section schematic diagram of the utility model.
[0017] Figure 2 It is the top view schematic diagram of the utility model.
[0018] The reference signs shown in the figure are: shell 1, electric energy storage member 2, first electrode member 3, second electrode member 4, thickness size T, length size H, width size W. DETAILED DESCRIPTION
[0019] In the following description, a large number of specific details are given to provide a more complete understanding of the application. However, it is obvious to those skilled in the art that the application can be implemented without one or more of these details. In other examples, some technical features known in the art are not described to avoid obscuring the application.
[0020] The application discloses a kind of for light electric two-wheeler electric core, by the design of shell size and electrode distribution makes that electric core can be used for light electric two-wheeler, solve the existing technology light electric two-wheeler electric core There are problems such as complex group process, cannot meet the demand of large rate discharge, and cannot pass needle test.
[0021] As Figure 1 And 2 The electric core includes: shell 1, electric energy storage 2, first electrode 3 and second electrode 4.
[0022] The thickness size T of shell 1 is ≤12mm, the length size H is ≤380mm, and the width size W is ≤63mm.
[0023] Electric energy storage 2 is arranged in shell 1, first electrode 3 and second electrode 4 are respectively installed at both ends of electric energy storage 2, and first electrode 3 and second electrode 4 extend to the outside through shell 1.
[0024] Regarding electric energy storage, the capacity of electric energy storage 2 is between 13~25Ah, and the capacity of electric energy storage 2 is the capacity of the electric core, that is, the maximum electric quantity that can be stored after the electric core is charged is between 13~25Ah, which can meet the mileage needs of electric two-wheeler.
[0025] Electric energy storage 2 is made by winding process or made by electric core of laminated process and the like.
[0026] Electric energy storage 2 adopts semi-solid or solid material system to greatly improve the energy density and safety performance of the electric core.
[0027] Regarding the shell, the material and structure of the shell can be the same as the shell material and structure of the soft package electric core, or the same as the shell material and structure of the square hard shell electric core.
[0028] In the embodiment, the thickness size T of shell 1 is between 5~12mm, and the thickness is relatively thin to facilitate the rapid diffusion of the center temperature of the electric core to the outside, and enhance the safety performance of the electric core.
[0029] The length size H of shell 1 is between 260~380mm, and the length can meet the capacity demand of light electric two-wheeler electric core.
[0030] The width size W of shell 1 is between 53~63mm, and the width can meet the demand of light electric two-wheeler light and compact appearance characteristics.
[0031] Through the above length, width and thickness design, the electric core can meet the capacity design of the electric core under the conditions of simplifying the process, meeting the demand of large rate discharge, and passing the needle test.
[0032] As Figure 1and 2 The first electrode member 3 and the second electrode member 4 are respectively installed at both ends of the length direction of the electric energy storage member 2, and the width ratio of the first electrode member and the second electrode member to the shell width is greater than or equal to 50%, that is, the spacing and the width of the two electrodes are further increased, so that the current field and the temperature field distribution are more reasonable when the battery is charged and discharged at a high rate. One of the first electrode member and the second electrode member is a positive electrode member, and the other is a negative electrode member, as shown in Figure 1 The width ratio of each electrode member to the shell width is greater than or equal to 50%.
[0033] As described above, although the present application has been shown and described with reference to certain preferred embodiments thereof, it is to be understood that such is by way of illustration and not of limitation. Various substitutions and modifications can be made without departing from the spirit and scope of the present application as defined in the appended claims.
Claims
1. A battery cell for a lightweight electric two-wheeled vehicle, characterized in that: include: A housing, an electric energy storage component, a first electrode component and a second electrode component; The thickness of the shell is ≤12 mm, the length is ≤380 mm, and the width is ≤63 mm; The electric energy storage component is arranged in the shell, the first electrode component and the second electrode component are respectively installed at two ends of the electric energy storage component, and the first electrode component and the second electrode component extend through the shell to the outside.
2. A battery cell for a lightweight electric two-wheeled vehicle according to claim 1, characterized in that: The thickness of the shell is between 5 and 12 mm.
3. The battery cell for a lightweight electric two-wheeled vehicle according to claim 1, characterized in that: The length of the shell is between 260 and 380 mm.
4. The battery cell for a lightweight electric two-wheeled vehicle according to claim 1, characterized in that: The width of the shell is between 53 and 63 mm.
5. The battery cell for a light electric two-wheeled vehicle according to claim 1, characterized in that: The first electrode member and the second electrode member are respectively installed at two ends of the electric energy storage member in the length direction.
6. The battery cell for a light electric two-wheeled vehicle according to claim 1, characterized in that: The capacity of the electric energy storage component is between 13 and 25 Ah.
7. The battery cell for a light electric two-wheeled vehicle according to claim 1, characterized in that: The ratio of the width of the first electrode member and the second electrode member to the width of the shell is ≥50%.
8. The battery cell for a lightweight electric two-wheeled vehicle according to claim 1, characterized in that: The electric energy storage component is made of semi-solid or solid material.