Novel partition plate of high-magnification lead-acid storage battery

Abstract

The utility model provides a novel partition plate of a high-magnification lead-acid storage battery, and belongs to the technical field of storage batteries. According to the structure, a first plate face and a second plate face are stacked in parallel, an interlayer is arranged between the first plate face and the second plate face, the edge of the interlayer is sealed through a covered edge, and a plurality of transverse sheets arranged at intervals along a transverse path and a plurality of longitudinal sheets arranged at intervals along a longitudinal path are arranged in the interlayer. The upper side and the lower side of the transverse sheet and the upper side and the lower side of the longitudinal sheet are connected with the first plate face and the second plate face respectively, and the outer side of the first plate face and the outer side of the second plate face are each provided with a plurality of transverse pits arranged at intervals along a transverse path and a plurality of longitudinal pits arranged at intervals along a longitudinal path. According to the utility model, a double-layer AGM partition plate structure is constructed, and the sheets which are arranged along the transverse path and the longitudinal path at intervals are additionally arranged in the interlayer, so that the structural strength of the partition plate is enhanced, and higher porosity is ensured. The high-rate lead-acid storage battery is suitable for high-rate lead-acid storage batteries and has longer service life.

Description

TECHNICAL FIELD

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

[0002] The main role of the battery separator is to prevent the positive and negative plates from directly contacting, causing internal short circuit. If the separator is damaged or aged, it will cause the positive and negative plates to directly contact, causing short circuit, thereby accelerating the sulfuration process of the battery, reducing the battery capacity, terminal voltage and electrolyte density, and increasing the internal resistance. Sulfuration will also accelerate water loss, forming a vicious cycle and further affecting the battery performance.

[0003] High rate battery refers to a battery with high energy output capacity, which can release a large amount of electric energy in a short time and support high load operation. High rate battery also has corresponding requirements for the performance of the separator. Specifically, during discharge of the lead-acid battery, the positive active material PbO2 and the negative active material Pb react with the electrolyte to generate PbSO4, which increases in molar volume and causes plate swelling and deformation. During charging, PbSO4 on the negative plate is reduced to Pb, and PbSO4 on the positive plate is oxidized to PbO2, which decreases in molar volume, i.e. plate shrinkage. This phenomenon is more pronounced in high rate batteries, and the resulting stress has a greater effect on the separator. The conventional structure of the separator is difficult to maintain a long service life in this working environment. In addition, high rate batteries have high porosity requirements for the separator, and the porosity of conventional separators generally cannot meet the requirements. SUMMARY

[0004] The first technical problem to be solved by the utility model is that conventional separators are difficult to maintain a long service life when coping with the stress caused by the dramatic change in the volume of active material.

[0005] The second technical problem to be solved by the utility model is how to improve the porosity as much as possible while ensuring the structural strength of the separator.

[0006] To achieve the above technical purposes, the utility model adopts the following technical solutions:

[0007] A new type of separator for high-rate lead-acid batteries comprises a first plate surface, a second plate surface, a transverse path, a longitudinal path, a transverse sheet, a longitudinal sheet, a transverse pit, a longitudinal pit, and a border, wherein the first plate surface and the second plate surface are stacked in parallel, a sandwich layer is arranged between the first plate surface and the second plate surface, the edges of the sandwich layer are closed by the border, a plurality of transverse sheets are arranged on the sandwich layer along the transverse path, the upper and lower sides of the transverse sheets are connected to the first plate surface and the second plate surface respectively, a plurality of longitudinal sheets are arranged on the sandwich layer along the longitudinal path, the upper and lower sides of the longitudinal sheets are connected to the first plate surface and the second plate surface respectively, a plurality of transverse pits are arranged on the outer side of the first plate surface along the transverse path, and a plurality of longitudinal pits are arranged on the outer side of the second plate surface along the longitudinal path.

[0008] Preferably, the transverse pits on the first plate surface are naturally formed by the connecting lines between the transverse sheets and the first plate surface, and the longitudinal pits on the first plate surface are naturally formed by the connecting lines between the longitudinal sheets and the first plate surface.

[0009] Preferably, the transverse pits on the second plate surface are naturally formed by the connecting lines between the transverse sheets and the second plate surface, and the longitudinal pits on the second plate surface are naturally formed by the connecting lines between the longitudinal sheets and the second plate surface.

[0010] Preferably, the projection of the transverse pit on a horizontal plane coincides with the projection of the transverse sheet on the horizontal plane, and the projection of the longitudinal pit on the horizontal plane coincides with the projection of the longitudinal sheet on the horizontal plane.

[0011] Preferably, the first plate surface, the second plate surface, the transverse sheet, the longitudinal sheet, and the border are each made of glass fiber material, and the diameter of the glass fiber is 0.4-3 μm.

[0012] Preferably, the transverse path and the longitudinal path are both arc lines.

[0013] In the above technical solution, the first plate surface and the second plate surface form a double-layer structure, which helps to strengthen the structural strength and form pores in the sandwich layer between the two. The transverse path and the longitudinal path are virtual lines for facilitating the description of the extension direction of the transverse sheet, the transverse pit, the longitudinal sheet, and the longitudinal pit. The transverse sheet and the longitudinal sheet are added inside the utility model to strengthen the structural strength. In addition, the transverse sheets are arranged on the transverse path to keep the internal space connected and have a high porosity (the same applies to the longitudinal sheets). The sheets, plate surfaces, and borders in the utility model are all made of flexible material (sheets made of superfine glass fiber by wet process, which is a conventional process and will not be expanded here).

[0014] This invention provides a novel separator for high-rate lead-acid batteries. The design employs a double-layer AGM separator structure, with sheets arranged at intervals along horizontal and vertical paths within the interlayer. This strengthens the separator's structural strength while maintaining high porosity. This invention is suitable for high-rate lead-acid batteries and offers a long service life. Attached Figure Description

[0015] Figure 1 This is an assembly drawing of this utility model;

[0016] Figure 2 This is an exploded view of this utility model;

[0017] Figure 3 This is a schematic diagram of the horizontal and vertical paths in this utility model;

[0018] Figure 4 This is a schematic diagram of the transverse and longitudinal recesses in this utility model;

[0019] In the picture:

[0020] Detailed Implementation

[0021] The specific embodiments of this utility model will be described in detail below. To avoid excessive and unnecessary details, well-known structures or functions will not be described in detail in the following embodiments. The approximate language used in the following embodiments can be used for quantitative descriptions, indicating that a certain degree of variation in quantity is permissible without changing the basic function. Unless otherwise defined, the technical and scientific terms used in the following embodiments have the same meaning as commonly understood by those skilled in the art to which this utility model pertains.

[0022] Example 1

[0023] A new type of separator for high-rate lead-acid batteries, such as Figures 1-4 As shown, the assembly includes a first panel 1, a second panel 2, a transverse path 3, a longitudinal path 4, transverse sheets 5, longitudinal sheets 6, transverse recesses 7, longitudinal recesses 8, and an edge banding 9. The first panel 1 and the second panel 2 are stacked in parallel. A sandwich layer is provided between the first panel 1 and the second panel 2. The edge of the sandwich layer is closed by the edge banding 9. Several transverse sheets 5 are arranged at intervals along the transverse path 3 in the sandwich layer. The upper and lower sides of the transverse sheets 5 are connected to the first panel 1 and the second panel 2, respectively. Several longitudinal sheets 6 are arranged at intervals along the longitudinal path 4 in the sandwich layer. The upper and lower sides of the longitudinal sheets 6 are connected to the first panel 1 and the second panel 2, respectively. Several transverse recesses 7 and several longitudinal recesses 8 are arranged at intervals along the transverse path 3 and the longitudinal path 4, respectively, on the outer side of the first panel 1 and the outer side of the second panel 2, respectively.

[0024] In the above technical solution, the first plate surface 1 and the second plate surface 2 constitute a double-layer structure. The double-layer structure helps to strengthen the structural strength and also helps to form pores in the interlayer between the two. The transverse path 3 and the longitudinal path 4 are virtual lines used to describe the extension direction of the transverse sheet 5, the transverse recess 7, the longitudinal sheet 6, and the longitudinal recess 8. The transverse sheet 5 and the longitudinal sheet 6 are added inside this utility model to strengthen the structural strength. In addition, the transverse sheets 5 are arranged at intervals on the transverse path 3 to maintain the internal space interconnection and have a high porosity (the same applies to the longitudinal sheet 6). In this embodiment, all sheets, plate surfaces, and edging 9 are made of flexible materials (sheets made of ultra-fine glass fiber through a wet process, which is a conventional process and will not be elaborated here).

[0025] Example 2

[0026] A new type of separator for high-rate lead-acid batteries, such as Figures 1-4 As shown, the assembly includes a first panel 1, a second panel 2, a transverse path 3, a longitudinal path 4, transverse sheets 5, longitudinal sheets 6, transverse recesses 7, longitudinal recesses 8, and an edge banding 9. The first panel 1 and the second panel 2 are stacked in parallel. A sandwich layer is provided between the first panel 1 and the second panel 2. The edge of the sandwich layer is closed by the edge banding 9. Several transverse sheets 5 are arranged at intervals along the transverse path 3 in the sandwich layer. The upper and lower sides of the transverse sheets 5 are connected to the first panel 1 and the second panel 2, respectively. Several longitudinal sheets 6 are arranged at intervals along the longitudinal path 4 in the sandwich layer. The upper and lower sides of the longitudinal sheets 6 are connected to the first panel 1 and the second panel 2, respectively. Several transverse recesses 7 and several longitudinal recesses 8 are arranged at intervals along the transverse path 3 and the longitudinal path 4, respectively, on the outer side of the first panel 1 and the outer side of the second panel 2, respectively. The transverse recesses 7 on the first panel 1 are naturally formed by the connecting line between the transverse sheet 5 and the first panel 1; the longitudinal recesses 8 on the first panel 1 are naturally formed by the connecting line between the longitudinal sheet 6 and the first panel 1. Similarly, the transverse recesses 7 on the second panel 2 are naturally formed by the connecting line between the transverse sheet 5 and the second panel 2; and the longitudinal recesses 8 on the second panel 2 are naturally formed by the connecting line between the longitudinal sheet 6 and the second panel 2. The projections of the transverse recesses 7 and the transverse sheet 5 on the horizontal plane coincide; the projections of the longitudinal recesses 8 and the longitudinal sheet 6 on the horizontal plane coincide. The first panel 1, the second panel 2, the transverse sheet 5, the longitudinal sheet 6, and the edging 9 are all made of glass fiber, with a diameter of 0.4~3μm. Both the transverse path 3 and the longitudinal path 4 are curved lines.

[0027] The embodiments of the present application are described in detail above, but the content is only the preferred embodiments of the present application, and is not used to limit the present application. Any modification, equivalent replacement and improvement made within the application range of the present application shall be included in the protection range of the present application.

Claims

1. A new separator for high rate lead-acid batteries, characterized in that The invention discloses a kind of glass fiber reinforced plastic (FRP) plate, including first plate face (1), second plate face (2), transverse path (3), longitudinal path (4), transverse sheet (5), longitudinal sheet (6), transverse pit (7), longitudinal pit (8), edge covering (9), wherein first plate face (1) and second plate face (2) are parallel and stacked, and the edge of the interlayer between first plate face (1) and second plate face (2) is closed by edge covering (9), and the interlayer is provided with a plurality of transverse sheets (5) arranged at intervals along the transverse path (3), the upper and lower sides of transverse sheet (5) are connected with first plate face (1) and second plate face (2) respectively, and the interlayer is provided with a plurality of longitudinal sheets (6) arranged at intervals along the longitudinal path (4), the upper and lower sides of longitudinal sheet (6) are connected with first plate face (1) and second plate face (2) respectively, and the outer side of first plate face (1) and the outer side of second plate face (2) are each provided with a plurality of transverse pits (7) arranged at intervals along the transverse path (3) and a plurality of longitudinal pits (8) arranged at intervals along the longitudinal path (4).

2. A new type of separator for high rate lead-acid battery according to claim 1, characterized in that, The transverse pit (7) on the first plate face (1) is naturally formed by the connecting line between the transverse sheet (5) and the first plate face (1); The longitudinal pit (8) on the first plate face (1) is naturally formed by the connecting line between the longitudinal sheet (6) and the first plate face (1).

3. A new type of separator for high rate lead-acid battery according to claim 1, characterized in that, The transverse pit (7) on the second plate face (2) is naturally formed by the connecting line between the transverse sheet (5) and the second plate face (2);The longitudinal pit (8) on the second plate face (2) is naturally formed by the connecting line between the longitudinal sheet (6) and the second plate face (2).

4. A new type of separator for high rate lead-acid battery according to claim 1, characterized in that, The projection of the transverse pit (7) on the horizontal plane coincides with the projection of the transverse sheet (5) on the horizontal plane;The projection of the longitudinal pit (8) on the horizontal plane coincides with the projection of the longitudinal sheet (6) on the horizontal plane.

5. A new type of separator for high rate lead-acid battery according to claim 1, characterized in that, First plate face (1), second plate face (2), transverse sheet (5), longitudinal sheet (6), edge covering (9) are each glass fiber material, and the diameter of the glass fiber is 0.4-3 μm.

6. A new type of separator for high rate lead-acid battery according to claim 1, characterized in that, The transverse path (3) and the longitudinal path (4) are both arc lines.

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