High-power valve-regulated lead-acid storage battery

Abstract

The utility model provides a high-power valve-regulated lead-acid storage battery, which comprises a battery shell, a plurality of independent cavities are arranged in the battery shell, each cavity is internally provided with a plate group, each plate group comprises a positive plate and a negative plate which are staggered and stacked, each of the positive plate and the negative plate comprises a plate grid, and the plate grids are arranged in the cavities. The grid is composed of ribs which are arranged in a criss-cross mode, the length of the grid is not smaller than 77mm, the width of the grid is not smaller than 44mm, and the thickness of the ribs is not smaller than 1.3 mm. The upper end of the battery shell is fixedly connected with a battery cover, a plurality of grooves are formed in the upper end of the battery cover, through holes are formed in the grooves, each through hole corresponds to one cavity, and the through holes are communicated with the cavities. And a battery patch is arranged in the groove in a covering and plugging manner. According to the invention, by increasing the surface area of the grid, large current is obtained, and the power of the storage battery is improved.

Description

Technical Field

[0001] This invention relates to the field of battery technology, and more particularly to a high-power valve-regulated lead-acid battery. Background Technology

[0002] Currently, with the increasing use of batteries, there is a corresponding need to improve battery power and lifespan. There are relatively few manufacturers of 12V 9Ah high-power batteries on the market, especially domestic manufacturers, while domestic and international mid-to-high-end UPS manufacturers urgently need this series of batteries. Based on this market demand, domestic and international battery manufacturers have entered into projects to develop this series of batteries, resulting in fierce competition. The 12V 9Ah high-power battery, compared to other ordinary batteries, is designed to achieve higher power within a fixed size (length*width*height*total height: 151*65*94*100mm). With the deepening research on lead-acid batteries, how to increase battery power within limited space is a problem that major battery manufacturers urgently need to solve. As manufacturers' requirements increase, battery manufacturers are also further raising their performance requirements, intensifying competition, and providing battery manufacturers with a broader market development space. Summary of the Invention

[0003] To address the aforementioned problems, this invention discloses a high-power valve-regulated lead-acid battery, comprising a battery casing. The battery casing contains several independent chambers, and each chamber contains an electrode group. The electrode group includes staggered positive and negative electrode plates. Both the positive and negative electrode plates include a grid, which is composed of crisscrossing ribs. The grid has a length of at least 77 mm, a width of at least 44 mm, and a rib thickness of at least 1.3 mm. By increasing the grid size, the current conduction capability is improved, resulting in a benefit effect for high-current discharge.

[0004] A battery cover is fixedly connected to the upper end of the battery casing. The upper end of the battery cover has several grooves, and each groove has a through hole. Each through hole corresponds to a chamber. A battery faceplate is provided to cover and seal the groove. Each chamber can be vented and filled with electrolyte independently through the through hole, so that each chamber does not affect the others.

[0005] Preferably, a partition is provided between the positive and negative plates to prevent direct contact between the positive and negative plates from causing a short circuit.

[0006] Preferably, the electrode group includes a positive electrode bus and a negative electrode bus, wherein the positive electrode bus is electrically connected to the positive electrode plate, and the negative electrode bus is electrically connected to the negative electrode plate. That is, the positive electrode plate and the negative electrode plate in the same electrode group are connected in parallel through the positive electrode bus and the negative electrode bus, respectively.

[0007] Preferably, a positive electrode welding element is fixedly connected to one side of the positive electrode busbar, and a negative electrode welding element is fixedly connected to one side of the negative electrode busbar. Several electrode groups are electrically connected in series via the positive and negative electrode welding elements. The positive and negative electrode welding elements are electrically connected to achieve a fixed connection of the electrode groups, while adjacent electrode groups are electrically connected via the positive and negative electrode welding elements.

[0008] Preferably, two electrode posts are fixedly connected to one side of the upper end of the battery cover, and the two electrode posts are electrically connected to the unconnected positive electrode welding piece and negative electrode welding piece, respectively. The electrode posts are used to connect to external power supply equipment or charging equipment.

[0009] The beneficial effects of this invention are as follows:

[0010] 1. By increasing the size of the grid, the current conduction capability is improved, which has a gain effect on high current discharge, thereby realizing high power supply of the battery.

[0011] 2. It is equipped with independent chambers and through holes, which ensures that each electrode group does not affect each other, thus helping to ensure the stable use of the battery. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0013] Figure 2 This is a schematic diagram of the capless structure of the present invention;

[0014] Figure 3 This is a top view of the present invention;

[0015] Figure 4 This is a schematic diagram of the pole group structure of the present invention;

[0016] Figure 5 This is a schematic diagram of the plate grid structure of the present invention.

[0017] List of reference numerals in the attached diagram:

[0018] 1. Electrode group; 2. Electrode post; 4. Battery casing; 5. Battery cover; 6. Battery faceplate;

[0019] 1.1 Positive electrode plate; 1.2 Negative electrode plate; 1.3 Separator; 1.4 Positive electrode busbar; 1.5 Negative electrode busbar; 1.6 Positive electrode butt welding component; 1.7 Negative electrode butt welding component;

[0020] 1.1.1, Plate grid. Detailed Implementation

[0021] The present invention will be further illustrated below with reference to the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are for illustrative purposes only and are not intended to limit the scope of the invention. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, and the terms "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0022] like Figures 1 to 5 As shown, a high-power valve-regulated lead-acid battery includes a battery casing 4, which has a rectangular parallelepiped structure. The casing 4 contains several independent chambers, each containing a group of electrodes 1. When the electromotive force across the electrode group 1 is approximately 2V, and there are 2×3 chambers (6 in total), the 6 electrode groups 1 connected in series can provide a 12V supply voltage. Each electrode group 1 includes staggered positive plates 1.1 and negative plates 1.2, specifically 5 positive plates 1.1 and 6 negative plates 1.2. Both positive and negative plates 1.1 and 1.2 include a grid 1.1.1, which is composed of crisscrossing ribs. The grid 1.1.1 has a length of 77–81 mm and a width of 44–46 mm, resulting in a total increased area of ​​not less than 100 mm². 2 The thickness of the reinforcing bars is 1.3–1.6 mm;

[0023] A battery cover 5 is fixedly connected to the upper end of the battery casing 4. The battery cover 5 is fixedly connected to the battery casing 4 by welding. Several grooves are provided on the upper end of the battery cover 5, and through holes are provided in the grooves. Each through hole corresponds to a chamber. A battery faceplate 6 is provided to cover and seal the groove. The through holes are vent holes for the chambers. Several through holes are provided to allow each chamber to be ventilated and filled with electrolyte independently.

[0024] A partition 1.3 is provided between the positive plate 1.1 and the negative plate 1.2 to prevent the positive plate 1.1 and the negative plate 1.2 from directly contacting each other and causing a short circuit.

[0025] Electrode group 1 includes a positive busbar 1.4 and a negative busbar 1.5. The positive busbar 1.4 is electrically connected to the positive plate 1.1, and the negative busbar 1.5 is electrically connected to the negative plate 1.2. The positive busbar 1.4 and the negative busbar 1.5 enable the positive plates 1.1 and the negative plates 1.2 on the same electrode group 1 to be connected in parallel. Multiple positive plates 1.1 and negative plates 1.2 also increase the current passing through them.

[0026] A positive electrode welding piece 1.6 is fixedly connected to one side of the positive busbar 1.4, and a negative electrode welding piece 1.7 is fixedly connected to one side of the negative busbar 1.5. Several electrode groups 1 are electrically connected in series through the positive electrode welding piece 1.6 and the negative electrode welding piece 1.7. The positive electrode welding piece 1.6 and the negative electrode welding piece 1.7 realize the electrical connection between the electrode groups 1.

[0027] Two electrode posts 2 are fixedly connected to one side of the upper end of the battery cover 5. The two electrode posts 2 are electrically connected to the unconnected positive electrode welding piece 1.6 and negative electrode welding piece 1.7, respectively. The electrode posts 2 are used to supply power or charge the battery.

[0028] The technical means disclosed in this invention are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features.

Claims

1. A high-power valve-regulated lead-acid battery, characterized in that, The battery includes a battery casing (4), which has several independent chambers inside, and each chamber is provided with an electrode group (1). The electrode group (1) includes staggered positive electrode plates (1.1) and negative electrode plates (1.2). Both the positive electrode plate (1.1) and the negative electrode plate (1.2) include a grid (1.1.1). The grid (1.1.1) is composed of ribs arranged in a crisscross pattern. The grid (1.1.1) has a length of not less than 77 mm, a width of not less than 44 mm, and a thickness of not less than 1.3 mm. The upper end of the battery casing (4) is fixedly connected to a battery cover (5). The upper end of the battery cover (5) is provided with several grooves, and through holes are provided in the grooves. Each through hole corresponds to a chamber. A battery faceplate (6) is provided in the groove to cover and seal it.

2. A high-power valve-regulated lead-acid battery according to claim 1, characterized in that: A partition (1.3) is provided between the positive electrode plate (1.1) and the negative electrode plate (1.2).

3. A high-power valve-regulated lead-acid battery according to claim 1, characterized in that: The electrode group (1) includes a positive busbar (1.4) and a negative busbar (1.5), the positive busbar (1.4) and the positive plate (1.1) are electrically connected, and the negative busbar (1.5) and the negative plate (1.2) are electrically connected.

4. A high-power valve-regulated lead-acid battery according to claim 3, characterized in that: A positive electrode welding piece (1.6) is fixedly connected to one side of the positive electrode bus (1.4), and a negative electrode welding piece (1.7) is fixedly connected to one side of the negative electrode bus (1.5). Several of the electrode groups (1) are electrically connected in series through the positive electrode welding piece (1.6) and the negative electrode welding piece (1.7).

5. A high-power valve-regulated lead-acid battery according to claim 4, characterized in that: Two electrode posts (2) are fixedly connected to one side of the upper end of the battery cover (5). The two electrode posts (2) are electrically connected to the unconnected positive electrode welding piece (1.6) and negative electrode welding piece (1.7), respectively.

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