Positive plate of high-magnification lead-acid storage battery

Abstract

The utility model provides a positive plate of a high-magnification lead-acid storage battery, and belongs to the technical field of storage batteries. According to the structure, a top frame and a bottom frame are arranged at the top and the bottom of a grid respectively, tabs are arranged on the top frame, supporting legs are arranged on the bottom frame, side frames are arranged on the two sides of the grid, a plurality of transverse ribs which are parallel to one another and are connected with the two side frames are arranged in the grid, and a plurality of main longitudinal ribs which are parallel to one another and are connected with the top frame and the bottom frame are arranged in the grid. A plurality of first auxiliary longitudinal ribs and second auxiliary longitudinal ribs which are parallel to the main longitudinal ribs and extend downwards are arranged on the top frame, and the first auxiliary longitudinal ribs are positioned on the lower sides of the tabs. According to the utility model, the auxiliary longitudinal ribs extending longitudinally are additionally arranged at the top of the grid according to the current distribution characteristics at the tabs, so that the adhesion amount and the adhesion stability of the lead plaster can be ensured; meanwhile, the short ribs are arranged at the top frame and the bottom frame, so that the structural strength is improved; in addition, during assembly, the supporting legs at the bottom can be used for positioning, and the assembly efficiency can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of battery, concretely to a high rate lead -acid battery positive plate. BACKGROUND

[0002] High rate lead -acid battery is compared with ordinary lead -acid battery, has higher energy density under the big current discharge scene, and its main improvement through grid, pole plate, pole group, baffle and lead paste formula realizes the application in high current, high power. Wherein lead paste and its coating scheme is one of core technology, through the introduction of additive, the optimization combination component allocation ratio, the improvement lead paste composition and structure, improve lead paste strength, enhance the adhesion of grid and lead paste, reduce contact internal resistance, control lead paste apparent density and acid content, improve lead paste porosity and specific surface area, increase active material and electrolyte contact reaction interface, improve battery high rate discharge performance and life. With the continuous improvement of lead paste strength and adhesion, the energy density of the battery is improved, but correspondingly, higher requirements are put forward for the assembly structure of the pole plate. In the prior art, the inner support strength of the ordinary assembly structure is low, and there is no protective structure outside, so deformation is easy to occur, and moreover, it is also not conducive to fully ensuring the stability of the lead paste coating structure. SUMMARY

[0003] The technical problem to be solved by the utility model is: how to design a positive plate assembly structure with more stable structure.

[0004] To achieve the above technical purposes, the utility model adopts the following technical scheme:

[0005] A high rate lead -acid battery positive plate, including grid and the lead paste of being attached on the grid, wherein, the grid includes top frame, bottom frame, side frame, tab, horizontal rib, main longitudinal rib, support leg, first vice longitudinal rib, second vice longitudinal rib, short rib, wherein, top frame and bottom frame are respectively arranged on the top and bottom of the grid, tab is arranged on the top frame, support leg is arranged on the bottom frame, the two sides of the grid are side frame, a plurality of horizontal ribs that are parallel to each other and connect two side frames are arranged in the interior of the grid, a plurality of main longitudinal ribs that are parallel to each other and connect top frame and bottom frame are arranged in the interior of the grid, a plurality of first vice longitudinal ribs and second vice longitudinal ribs that are parallel to main longitudinal rib and extend downward are arranged on top frame, wherein the first vice longitudinal rib is located on the lower side of the tab, and its length is not less than 70% of the length of main longitudinal rib, the second vice longitudinal rib is located on the position of the lower side of non-tab, and its length is not less than 40% of the length of main longitudinal rib, a plurality of short ribs are connected between top frame and the first horizontal rib from top to bottom, and a plurality of short ribs are connected between bottom frame and the first horizontal rib from bottom to top.

[0006] As preferred, it further includes a baffle and a negative plate, wherein a plurality of positive plates and a plurality of negative plates are arranged at intervals, and a baffle is arranged between the positive plate and the negative plate.

[0007] As preferred, the separators are stacked in double layers. The way of wrapping the plates is generally to choose single-piece "U"-shaped wrapping positive plates, that is, to fold the separators to wrap the positive plates.

[0008] As preferred, the edge position of the grid is transitioned with a rounded corner, and a short rib is arranged at the top corner position of the grid.

[0009] As preferred, a secondary transverse rib is connected between the first secondary longitudinal ribs and between the first secondary longitudinal ribs and the second secondary longitudinal ribs.

[0010] In the above technical solution, the top frame, the bottom frame and the side frame constitute the outer skeleton structure of the grid, and inside the grid, the mesh structure is formed by the transverse ribs and the main longitudinal ribs. Since the current at the tab position is relatively strong, in order to ensure the energy density, the utility model adds the first secondary longitudinal rib and the second secondary longitudinal rib below the tab, which is beneficial to ensure the adhesion amount and adhesion stability of the lead paste. Moreover, the tab is relatively large under external force, and the arrangement of the secondary longitudinal rib is helpful to ensure the stability of the grid structure. In addition to the support leg, the internal bottom end of the battery shell also needs to add a corresponding positioning groove, so that the support leg and the above-mentioned positioning groove can be used for installation and positioning when assembling the plate (the bottom of the negative plate should also be correspondingly provided with a support leg, which is symmetrical with the position of the positive plate support leg, which is beneficial to the stability and bearing capacity of the single structure). In addition, since the top and bottom of the grid skeleton bear a large force, the utility model sets a short rib at the position of the top frame and the bottom frame, thereby ensuring the structural strength.

[0011] The utility model provides a kind of high rate lead-acid battery positive plate. The technical scheme is in view of the current distribution characteristics at tab, and the secondary longitudinal rib of longitudinal extension is additionally arranged at the top of grid, which is beneficial to ensure the adhesion amount and adhesion stability of the lead paste, also conducive to the conduction current;At the same time, short rib is arranged at top frame and bottom frame, which improves structural strength;In addition, support leg at bottom can be used for positioning during assembly, which is beneficial to improve assembly efficiency, and short circuit caused by active material falling off can also be avoided. BRIEF DESCRIPTION OF DRAWINGS

[0012] Fig. 1 It is the internal structure diagram of the utility model;

[0013] Fig. 2 It is the external structure perspective view of the utility model;

[0014] Fig. 3 It is the external structure side view of the utility model;

[0015] Fig. 4 It is the local view of A position;

[0016] In the drawing:

[0017] DETAILED DESCRIPTION

[0018] 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.

[0019] 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.

[0020] 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.

[0021] Example 1

[0022] A high-rate lead-acid battery positive plate, such as Figs. 1-4 As shown, the device includes a grid 4 and lead paste attached to the grid 4. The grid 4 includes a top frame 41, a bottom frame 42, side frames 43, pole lugs 44, transverse ribs 45, main longitudinal ribs 46, support legs 47, a first secondary longitudinal rib 48, a second secondary longitudinal rib 49, and short ribs 410. A top frame 41 and a bottom frame 42 are respectively provided at the top and bottom of the grid 4. Pole lugs 44 are provided on the top frame 41, and support legs 47 are provided on the bottom frame 42. Side frames 43 are located on both sides of the grid 4. Several parallel transverse ribs 45 connect the two side frames 43 inside the grid 4. The main longitudinal rib 46 connects the top frame 41 and the bottom frame 42. The top frame 41 has several first secondary longitudinal ribs 48 and second secondary longitudinal ribs 49 that are parallel to the main longitudinal ribs 46 and extend downward. The first secondary longitudinal ribs 48 are located below the tabs 44 and their length is not less than 70% of the main longitudinal ribs 46. The second secondary longitudinal ribs 49 are located below the non-tabs 44 and their length is not less than 40% of the main longitudinal ribs 46. Several short ribs 410 are connected between the top frame 41 and the first transverse rib 45 from top to bottom. Several short ribs 410 are connected between the bottom frame 42 and the first transverse rib 45 from bottom to top.

[0023] In the above technical solution, the top frame 41, bottom frame 42, and side frame 43 constitute the outer skeleton structure of the grid 4. Inside the grid 4, a mesh structure is formed by transverse ribs 45 and main longitudinal ribs 46. Since the current is relatively strong at the tab 44, to ensure energy density, this invention adds a first secondary longitudinal rib 48 and a second secondary longitudinal rib 49 below the tab 44, which helps ensure the amount and stability of lead paste adhesion. Furthermore, since the tab 44 is subjected to relatively large external forces, the secondary longitudinal ribs help ensure the stability of the grid 4 structure. In addition to adding support legs 47, a corresponding positioning groove is also needed at the bottom of the battery casing, so that the support legs 47 and the aforementioned positioning groove can be used for installation and positioning when assembling the plates. Furthermore, since the top and bottom of the grid 4 skeleton are subjected to large forces, this invention provides short ribs 410 at the top frame 41 and bottom frame 42 positions respectively to ensure structural strength.

[0024] Example 2

[0025] A high-rate lead-acid battery positive plate, such as Figs. 1-4 As shown, the device includes a grid 4 and lead paste attached to the grid 4. The grid 4 includes a top frame 41, a bottom frame 42, side frames 43, pole lugs 44, transverse ribs 45, main longitudinal ribs 46, support legs 47, a first secondary longitudinal rib 48, a second secondary longitudinal rib 49, and short ribs 410. A top frame 41 and a bottom frame 42 are respectively provided at the top and bottom of the grid 4. Pole lugs 44 are provided on the top frame 41, and support legs 47 are provided on the bottom frame 42. Side frames 43 are located on both sides of the grid 4. Several parallel transverse ribs 45 connect the two side frames 43 inside the grid 4. The main longitudinal rib 46 connects the top frame 41 and the bottom frame 42. The top frame 41 has several first secondary longitudinal ribs 48 and second secondary longitudinal ribs 49 extending downwards parallel to the main longitudinal ribs 46. The first secondary longitudinal ribs 48 are located below the electrode lugs 44 and their length is not less than 70% of the main longitudinal ribs 46. The second secondary longitudinal ribs 49 are located below the non-electrode lugs 44 and their length is not less than 40% of the main longitudinal ribs 46. Several short ribs 410 connect the top frame 41 and the first transverse rib 45 from top to bottom, and several short ribs 410 connect the bottom frame 42 and the first transverse rib 45 from bottom to top. The system also includes a partition plate 1 and a negative electrode plate 3. Several positive electrode plates 2 and several negative electrode plates 3 are arranged alternately, with a partition plate 1 between the positive electrode plates 2 and the negative electrode plates 3. The partition plate 1 is double-layered. The edges of the grid 4 are rounded, and short ribs 410 are provided at the top corners of the grid 4. There are transverse bars connecting the first set of longitudinal bars 48 and the first set of longitudinal bars 48 and the second set of longitudinal bars 49.

[0026] 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.

[0027] 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.

[0028] 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 high-rate lead-acid battery positive plate, comprising a grid (4) and lead paste attached to the grid (4), characterized in that, The slatted grating (4) includes a top frame (41), a bottom frame (42), side frames (43), pole lugs (44), transverse ribs (45), main longitudinal ribs (46), support legs (47), a first secondary longitudinal rib (48), a second secondary longitudinal rib (49), and short ribs (410). The top frame (41) and bottom frame (42) are respectively provided at the top and bottom of the slatted grating (4). Pole lugs (44) are provided on the top frame (41), and support legs (47) are provided on the bottom frame (42). Side frames (43) are located on both sides of the slatted grating (4). Several transverse ribs (45) are parallel to each other and connect the two side frames (43) inside the slatted grating (4). Several parallel ribs (45) are also provided inside the slatted grating (4) and connect the top frame. The main longitudinal ribs (46) of the top frame (41) and the bottom frame (42) have several first secondary longitudinal ribs (48) and second secondary longitudinal ribs (49) that are parallel to the main longitudinal ribs (46) and extend downward. The first secondary longitudinal ribs (48) are located below the pole lugs (44) and their length is not less than 70% of the main longitudinal ribs (46). The second secondary longitudinal ribs (49) are located below the non-pole lugs (44) and their length is not less than 40% of the main longitudinal ribs (46). Several short ribs (410) are connected between the top frame (41) and the first transverse rib (45) from top to bottom. Several short ribs (410) are connected between the bottom frame (42) and the first transverse rib (45) from bottom to top.

2. The high-rate lead-acid battery positive plate according to claim 1, characterized in that, It also includes a separator (1) and a negative electrode plate (3), wherein a number of positive electrode plates (2) and a number of negative electrode plates (3) are arranged at intervals, and a separator (1) is provided between the positive electrode plate (2) and the negative electrode plate (3).

3. The high-rate lead-acid battery positive plate according to claim 2, characterized in that, The partition (1) is a double-layer stacked assembly.

4. The high-rate lead-acid battery positive plate according to claim 1, characterized in that, The edges of the grid (4) are rounded, and short ribs (410) are provided at the top corners of the grid (4).

5. The positive electrode plate of a high-rate lead-acid battery according to claim 1, characterized in that, There are transverse bars connecting the first longitudinal bars (48) and the second longitudinal bars (49).

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