Composite separator for high power density lead-acid batteries

Abstract

This utility model provides a composite separator for a high-power-density lead-acid battery, belonging to the field of battery technology. Its structure includes: a bracket fixedly connected to the outside of a frame; several limiting plates fixedly connected to the front and rear sides of the frame; a groove on the frame; a separator fixedly connected inside the frame; slots on the inner edge of the frame and on the front and rear sides of the separator; a rear grid and a negative electrode plate fixedly mounted on the rear slot; a front grid and a positive electrode plate fixedly mounted on the front slot; mesh sheets fixedly connected to the front and rear ends of the frame; a protective plate on the inner side of the mesh sheets; and negative and positive contacts on the groove. This utility model uses an integrated structure to construct the assembly of the separator and the positive and negative electrode plates, not only adding an elastic support structure but also strengthening the external protection, effectively improving structural strength and vibration resistance, making it suitable for the assembly of high-power-density lead-acid batteries.

Description

Technical Field

[0001] This utility model belongs to the field of battery technology, specifically a composite separator for a high power density lead-acid battery. Background Technology

[0002] Lead-acid batteries are a type of storage battery that uses lead and its oxides as electrodes and sulfuric acid solution as the electrolyte. They store and release electrical energy through chemical reactions, and are characterized by simple structure, low cost, and stable performance, making them widely used in various energy storage fields. Power density is an important parameter measuring the power output capability of a battery per unit weight. Traditional lead-acid batteries have relatively low energy densities, typically between 50 and 70 W / kg. Improving power density has been a key technological goal in lead-acid battery research and development in recent years. With the increase in power density, the mass density and assembly compactness of batteries also gradually increase, thus placing higher demands on their structural strength and vibration resistance. Separators in batteries not only separate the positive and negative electrodes but also play a supporting role in the battery's structure. Currently, the structural strength and vibration resistance of conventional battery separators need improvement. Summary of the Invention

[0003] The technical problem to be solved by this utility model is: how to design a battery separator with higher structural strength and better vibration resistance.

[0004] To achieve the above technical objectives, the present invention adopts the following technical solution:

[0005] A composite separator for a high-power-density lead-acid battery includes a frame, a bracket, limiting plates, a groove, a rear grid, a negative electrode plate, a separator, a slot, a front grid, a positive electrode plate, a mesh sheet, a protective plate, positive contacts, and negative contacts. The bracket is fixedly connected to the outside of the frame, and several limiting plates are fixedly connected to the front and rear sides of the frame. A groove is provided on the frame, and a separator is fixedly connected to the inside of the frame. Slots are provided on the inner edge of the frame, at positions on the front and rear sides of the separator. A rear grid and a negative electrode plate are fixedly mounted on the rear slot, and a front grid and a positive electrode plate are fixedly mounted on the front slot. Mesh sheets are fixedly connected to the front and rear ends of the frame, and a protective plate is provided inside the mesh sheet. Negative contacts connected to the negative electrode plate and positive contacts connected to the positive electrode plate are provided on the groove.

[0006] Preferably, the limiting piece includes a support piece located on its outer side and an insulating piece located on its inner side.

[0007] Preferably, the partition is a polypropylene partition or an ultrafine glass wool partition.

[0008] Preferably, the protective panel is made of plant fiber.

[0009] Preferably, the mesh sheet is composed of several warp threads and several weft threads, and the material of the mesh sheet is polyvinyl chloride or rubber.

[0010] Preferably, there are two troughs, which are located on the left and right sides of the top of the frame, respectively.

[0011] In the above technical solution, the frame serves as external support and also assembles the separator and electrode plates into a whole; its material can be polyethylene or polypropylene plastic. The bracket is used to restrict and fix the cables during wiring. The limiting plate provides external support; its structure can employ an external elastic support plate and an internal insulating plate to ensure impact resistance. The groove is used to install the contacts; the rear grid is part of the negative electrode plate, and the front grid is part of the positive electrode plate, used for conducting and collecting current. The slots on the front and rear sides of the separator are used to fix the electrode plates. The mesh sheet can be made of polyvinyl chloride or rubber to enhance toughness. The protective plate is made of rigid material and provides external protection. The positive and negative contacts are used for wiring.

[0012] This invention provides a composite separator for a high-power-density lead-acid battery. The technical solution employs an integrated structure to assemble the separator with the positive and negative plates, not only adding an elastic support structure but also strengthening external protection, effectively improving structural strength and vibration resistance, making it suitable for assembling high-power-density lead-acid batteries. Attached Figure Description

[0013] Figure 1 This is an assembly drawing of this utility model;

[0014] Figure 2 This is an exploded view of this utility model;

[0015] Figure 3 This is the first partial view of this utility model;

[0016] Figure 4 This is the second partial view of this utility model;

[0017] Figure 5 yes Figure 3 A partial view of position A in the middle;

[0018] In the picture:

[0019] Detailed Implementation

[0020] The technical solutions in 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, not all, of the embodiments of this application. 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. Furthermore, those skilled in the art will understand that with technological development and the emergence of new scenarios, the technical solutions provided by the embodiments of this application are also applicable to similar technical problems.

[0021] In the description of this application, it should be understood that, unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. Furthermore, any terminology used is for the purpose of describing particular embodiments only and is not intended to be limiting of this application.

[0022] Furthermore, to better illustrate this application, numerous specific details are provided in the following detailed embodiments. Those skilled in the art should understand that this application can be implemented without certain specific details. In some instances, methods, means, components, and circuits well-known to those skilled in the art have not been described in detail in order to highlight the main points of this application.

[0023] Example 1

[0024] A composite separator for a high power density lead-acid battery, such as Figures 1-5 As shown, the device includes a frame 1, a bracket 2, a limiting piece 3, a groove 4, a rear plate grid 5, a negative electrode plate 6, a partition 7, a slot 8, a front plate grid 9, a positive electrode plate 10, a mesh sheet 11, a protective plate 12, a positive electrode contact 13, and a negative electrode contact 14. The bracket 2 is fixedly connected to the outside of the frame 1, and several limiting pieces 3 are fixedly connected to both the front and rear sides of the frame 1. A groove 4 is provided on the frame 1, and a partition 7 is fixedly connected to the inside of the frame 1. The inner edge of the frame 1 and the front and rear sides of the partition 7 are provided with slots 8. The rear plate grid 5 and the negative plate 6 are fixedly installed on the rear slot 8, and the front plate grid 9 and the positive plate 10 are fixedly installed on the front slot 8. The front and rear ends of the frame 1 are fixedly connected with mesh sheets 11. The inner side of the mesh sheets 11 is provided with a protective plate 12. The slot 4 is provided with a negative contact 14 connected to the negative plate 6 and a positive contact 13 connected to the positive plate 10.

[0025] In the above technical solution, the frame 1 serves as an external support and also assembles the separator 7 and the electrode plate into a whole; its material can be polyethylene or polypropylene plastic. The bracket 2 is used to restrict and fix the cable during wiring. The limiting piece 3 provides external support; its structure can adopt an external elastic support piece 15 and an internal insulating piece 16 to ensure impact resistance. The groove 4 is used to install the contacts; the rear grid 5 is part of the negative electrode plate 6, and the front grid 9 is part of the positive electrode plate 10, used for conducting and collecting current. The slots 8 on the front and rear sides of the separator 7 are used to fix the electrode plate. The mesh sheet 11 can be made of polyvinyl chloride or rubber to enhance toughness. The protective plate 12 is made of rigid material and provides external protection. The positive contact 13 and the negative contact 14 are used for wiring.

[0026] Example 2

[0027] A composite separator for a high power density lead-acid battery, such as Figures 1-5 As shown, the device includes a frame 1, a bracket 2, a limiting piece 3, a groove 4, a rear plate grid 5, a negative electrode plate 6, a partition 7, a slot 8, a front plate grid 9, a positive electrode plate 10, a mesh sheet 11, a protective plate 12, a positive electrode contact 13, and a negative electrode contact 14. The bracket 2 is fixedly connected to the outside of the frame 1, and several limiting pieces 3 are fixedly connected to both the front and rear sides of the frame 1. A groove 4 is provided on the frame 1, and a partition 7 is fixedly connected to the inside of the frame 1. The frame 1 has slots 8 on its inner edge and on both sides of the partition 7. A rear plate grid 5 and a negative electrode plate 6 are fixedly mounted on the rear slot 8, and a front plate grid 9 and a positive electrode plate 10 are fixedly mounted on the front slot 8. Mesh sheets 11 are fixedly connected to the front and rear ends of the frame 1. A protective plate 12 is provided on the inner side of the mesh sheet 11. A negative electrode contact 14 connected to the negative electrode plate 6 and a positive electrode contact 13 connected to the positive electrode plate 10 are provided on the groove 4. The limiting piece 3 includes a support piece 15 on its outer side and an insulating piece 16 on its inner side. The partition 7 is a polypropylene partition or a superfine glass wool partition. The protective plate 12 is made of plant fiber. The mesh sheet 11 is composed of several warp and weft threads and is made of polyvinyl chloride or rubber. There are two grooves 4, located on the left and right sides of the top of the frame 1, respectively.

[0028] In summary, after reading this detailed disclosure, those skilled in the art will understand that the foregoing detailed disclosure is presented by way of example only and is not restrictive. Although not explicitly stated herein, those skilled in the art will understand that this application is intended to encompass various reasonable changes, improvements, and modifications to the embodiments. These changes, improvements, and modifications are intended to be made by this application and are within the spirit and scope of the exemplary embodiments of this application.

[0029] It should be understood that in the foregoing description of the embodiments of this application, various features are combined in a single embodiment, drawing, or description for the purpose of simplifying the understanding of a feature. However, this does not mean that the combination of these features is necessary, and those skilled in the art can certainly extract some of the features as individual embodiments when reading this application.

[0030] It should be understood that the embodiments disclosed herein are illustrative of the principles of this application. Other modified embodiments are also within the scope of this application. The embodiments disclosed herein are merely examples and not limitations, and the embodiments of this application are not limited to the embodiments precisely described above.

Claims

1. A composite separator for high power density lead-acid batteries, characterized in that The system includes a frame (1), a bracket (2), a limiting piece (3), a groove (4), a rear grid (5), a negative electrode plate (6), a partition (7), a slot (8), a front grid (9), a positive electrode plate (10), a mesh sheet (11), a protective plate (12), a positive electrode contact (13), and a negative electrode contact (14). A bracket (2) is fixedly connected to the outside of the frame (1), and several limiting pieces (3) are fixedly connected to both the front and rear sides of the frame (1). A groove (4) is provided on the frame (1), and a partition (7) is fixedly connected inside the frame (1). The inner edge of the frame (1) and the front and rear sides of the partition (7) are provided with slots (8). A rear plate grid (5) and a negative plate (6) are fixedly installed on the rear slot (8). A front plate grid (9) and a positive plate (10) are fixedly installed on the front slot (8). A mesh sheet (11) is fixedly connected to the front and rear ends of the frame (1). A protective plate (12) is provided on the inner side of the mesh sheet (11). A negative contact (14) connected to the negative plate (6) and a positive contact (13) connected to the positive plate (10) are provided on the groove (4).

2. A composite separator for high power density lead-acid batteries according to claim 1, wherein The limiting piece (3) includes a support piece (15) located on its outer side and an insulating piece (16) located on its inner side.

3. The composite separator for high power density lead-acid batteries of claim 1, wherein, The partition (7) is a polypropylene partition or a superfine glass wool partition.

4. The composite separator for high power density lead-acid batteries of claim 1 wherein, The protective plate (12) is made of plant fiber.

5. The composite separator for high power density lead-acid batteries of claim 1 wherein, The mesh sheet (11) is composed of several warp threads and several weft threads. The material of the mesh sheet (11) is polyvinyl chloride or rubber.

6. The composite separator for high power density lead-acid batteries of claim 1 wherein, There are two troughs (4), which are located on the left and right sides of the top of the frame (1).

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