Grid transverse and longitudinal bar arrangement structure of high-rate battery

Abstract

The utility model provides a grid transverse and longitudinal bar arrangement structure of a high-rate battery, and belongs to the technical field of storage batteries. The structure comprises a plate surface, I-shaped holes and short holes, the I-shaped hole comprises a longitudinal hole and transverse holes located in the upper end and the lower end of the longitudinal hole. The plurality of I-shaped holes and the plurality of short holes are arranged at intervals in the longitudinal direction on the plate surface to form a row of hole sites, and every two rows of hole sites adjacent in the transverse direction are arranged in a staggered mode. According to the utility model, the I-shaped holes and the short square holes are arranged at intervals to form the longitudinal hole sites, and then the longitudinal hole sites in each row are arranged in a staggered manner. According to the arrangement structure disclosed by the utility model, the compressive strength of the grid is remarkably improved, the external force generated by the volume change of an electrode solid substance (lead plaster) in the charging-discharging cycle process of the battery can be effectively borne, and the arrangement structure is suitable for a large-width sectional area design configuration of a high-rate battery. In addition, the self weight is not obviously increased, and the technical advantages are prominent.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, specifically to a grid arrangement structure for a high-rate battery with horizontal and vertical ribs. Background Technology

[0002] The grid is a major component of a lead-acid battery, serving as the current-collecting framework of the electrodes. It conducts and collects current, ensuring a uniform current distribution, and also supports the active materials, acting as their carrier. During charging and discharging, the composition of the active materials changes. Specifically, the volume of the active materials differs before and after the transformation. During discharge, the positive electrode active material PbO2 and the negative electrode active material Pb react with the electrolyte to form PbSO4, increasing its molar volume and causing the plates to expand and deform. During charging, the PbSO4 on the negative electrode is reduced to Pb, and the PbSO4 on the positive electrode is oxidized to PbO2, decreasing its molar volume and causing the plates to shrink. Therefore, the grid's support prevents the active materials from shedding due to expansion and contraction.

[0003] High-rate lead-acid batteries have a higher energy density than ordinary lead-acid batteries, making them more suitable for high-current discharge scenarios. Their discharge current is typically several times that of ordinary lead-acid batteries. Regarding the grid structure, it must not only be compatible with the structural design of high-rate lead-acid batteries, but also, due to greater volume expansion during discharge, place higher demands on grid strength. In existing technology, a typical structure of a conventional grid is as follows: Figure 1 As shown, its structural strength is not high. In particular, after increasing the distance between the electrodes, the stability of the central support is reduced, which leads to deformation and even leakage from time to time. Summary of the Invention

[0004] The technical problem to be solved by this utility model is: how to further improve the structural strength of the plate grid.

[0005] To achieve the above technical objectives, the present invention adopts the following technical solution:

[0006] A grid arrangement structure for a high-rate battery includes a plate surface, I-beam holes, and short holes; wherein the I-beam holes include longitudinal holes and transverse holes located at the upper and lower ends of the longitudinal holes; a number of I-beam holes and a number of short holes are arranged longitudinally at intervals on the plate surface to form a row of holes, and for each two rows of holes that are adjacent laterally, they are arranged alternately.

[0007] Preferably, the staggered arrangement includes: the short hole in the left column is located to the left of one of the transverse holes of the I-beam hole in the right column, and one of the transverse holes of the I-beam hole in the left column is located between the two transverse holes of the I-beam hole in the right column.

[0008] Preferably, a first transverse rib is formed between the short hole and its left and right transverse holes, a second transverse rib is formed between the longitudinal hole and another longitudinal hole directly opposite it, a third transverse rib is formed between the longitudinal hole and another longitudinal hole arranged alternately on its side, and a longitudinal rib is formed between the two transverse holes located on the same I-beam hole.

[0009] Preferably, the height of the second horizontal rib is equal to the height of the third horizontal rib, and the heights of the short hole, the horizontal hole, and the first horizontal rib are equal.

[0010] In the above technical solution, the I-beam holes and short holes are arranged vertically at intervals, and the holes in each pair of adjacent rows are staggered, thus forming a structure in which the I-beam holes overlap each other diagonally upwards. The resulting horizontal and vertical ribs are arranged in a mesh pattern, which ensures both connectivity and improves structural strength. Compared with conventional gratings of the same area, this utility model only increases the weight by about 10%, but increases the compressive strength by 0.8 to 1.3 times (lead-calcium alloy material, 2 to 4 mm thickness).

[0011] This invention provides a grid arrangement structure for high-rate batteries, featuring horizontal and vertical ribs. The technical solution employs alternating H-shaped holes and short square holes to form longitudinal holes, which are then staggered. This arrangement significantly improves the grid's compressive strength, effectively withstanding the external forces generated by the volume changes of the electrode solid material (lead paste) during charge-discharge cycles. It is suitable for the large cross-sectional area design of high-rate batteries. Furthermore, this invention does not significantly increase weight, demonstrating outstanding technical advantages. Attached Figure Description

[0012] Figure 1 This is a typical structural diagram of a conventional plate grid;

[0013] Figure 2 This is a diagram illustrating the application scenario of this utility model;

[0014] Figure 3 This is a structural diagram of the present invention;

[0015] In the picture:

[0016] Detailed Implementation

[0017] 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.

[0018] 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 to which this application pertains. Furthermore, any terminology used is for the purpose of describing particular embodiments only and is not intended to be limiting of this application.

[0019] 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.

[0020] Example 1

[0021] A high-rate battery grid structure with horizontal and vertical rib arrangement, such as Figure 2 , Figure 3 As shown, the plate includes a plate surface 1, I-shaped holes 2, and short holes 3; wherein, the I-shaped holes 2 include longitudinal holes 201 and transverse holes 202 located at the upper and lower ends of the longitudinal holes 201; a number of I-shaped holes 2 and a number of short holes 3 are arranged longitudinally at intervals on the plate surface 1 to form a row of holes, and for each two adjacent rows of holes in the transverse direction, they are arranged alternately.

[0022] In the above technical solution, the I-beam holes 2 and short holes 3 are arranged vertically at intervals, and the holes in each pair of adjacent rows are staggered, thus forming a structure in which the I-beam holes 2 overlap each other diagonally upwards. The resulting horizontal and vertical ribs are arranged in a mesh pattern, which ensures both connectivity and structural strength. Compared with conventional gratings of the same area, this utility model only increases the weight by about 10%, but the compressive strength is increased by 0.8 to 1.3 times (lead-calcium alloy material, 2 to 4 mm thickness).

[0023] Example 2

[0024] A high-rate battery grid structure with horizontal and vertical rib arrangement, such as Figure 2 , Figure 3As shown, the system includes a plate surface 1, I-shaped holes 2, and short holes 3. Each I-shaped hole 2 includes a longitudinal hole 201 and transverse holes 202 located at the upper and lower ends of the longitudinal hole 201. A plurality of I-shaped holes 2 and a plurality of short holes 3 are arranged longitudinally at intervals on the plate surface 1 to form a row of holes. For each pair of adjacent transverse rows of holes, they are staggered. The staggered arrangement includes: a short hole 3 in the left row is located to the left of one of the transverse holes 202 in the right row of I-shaped holes 2; one transverse hole 202 in the left row of I-shaped holes 2 is located between two transverse holes 202 in the right row of I-shaped holes 2. A first transverse rib 4 is formed between a short hole 3 and its left and right transverse holes 202; a second transverse rib 5 is formed between a longitudinal hole 201 and another longitudinal hole 201 directly opposite it; a third transverse rib 6 is formed between a longitudinal hole 201 and another longitudinal hole 201 staggered to its side; and a longitudinal rib 7 is formed between two transverse holes 202 located on the same I-shaped hole 2. The height of the second horizontal rib 5 is equal to the height of the third horizontal rib 6, and the heights of the short hole 3, the horizontal hole 202, and the first horizontal rib 4 are equal.

[0025] 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.

[0026] 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.

[0027] 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 grid arrangement structure for a high-rate battery, characterized in that... It includes a plate surface (1), I-beam holes (2), and short holes (3); wherein, the I-beam holes (2) include longitudinal holes (201) and transverse holes (202) located at the upper and lower ends of the longitudinal holes (201); a number of I-beam holes (2) and a number of short holes (3) are arranged longitudinally on the plate surface (1) to form a row of holes, and for each two rows of holes that are adjacent in the transverse direction, they are arranged alternately.

2. The grid horizontal and vertical rib arrangement structure of a high-rate battery according to claim 1, characterized in that, The interleaved arrangement includes: the short hole (3) of the left column hole position is located to the left of one of the transverse holes (202) of the I-shaped hole (2) of the right column hole position, and one of the transverse holes (202) of the I-shaped hole (2) of the left column hole position is located between the two transverse holes (202) of the I-shaped hole (2) of the right column hole position.

3. The grid horizontal and vertical rib arrangement structure of a high-rate battery according to claim 2, characterized in that, A first transverse rib (4) is formed between the short hole (3) and its left and right transverse holes (202), a second transverse rib (5) is formed between the longitudinal hole (201) and another longitudinal hole (201) directly opposite to it, a third transverse rib (6) is formed between the longitudinal hole (201) and another longitudinal hole (201) arranged alternately on its side, and a longitudinal rib (7) is formed between the two transverse holes (202) located on the same I-shaped hole (2).

4. The grid horizontal and vertical rib arrangement structure of a high-rate battery according to claim 1, characterized in that, The height of the second horizontal rib (5) is equal to the height of the third horizontal rib (6), and the heights of the short hole (3), the horizontal hole (202), and the first horizontal rib (4) are equal.

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