CN202434632U - Plate-type lead-acid traction storage battery - Google Patents

Abstract

The utility model relates to a plate-type lead-acid traction storage battery. The plate-type lead-acid traction storage battery comprises a positive electrode, a negative electrode, poles, electrolyte, a storage battery case and a storage battery cover, the positive electrode is a plate-type positive electrode and comprises a positive electrode plate and a sealed positive electrode plate sheath wrapping the outside of the positive electrode plate, the positive electrode plate comprises a positive plate grid and a positive lead paste layer combined with the positive plate grid, and the grid shape of the positive plate grid is rectangular, or radial or dragnet-type diamond. The negative electrode comprises a negative electrode plate and a negative electrode plate baffle plate bag sleeved on the outside of the negative electrode plate, and tabs of the positive electrode plate and the negative electrode plate are side tabs or middle tabs. Softening and shedding of positive electrode active materials are effectively delayed by means of the positive electrode, the probability of spongy lead short circuit is reduced, the service life of the storage battery is prolonged, the shortcomings of low specific energy and low specific power of a tubular battery are overcome, and long service life and high specific energy of the plate-type lead-acid traction storage battery are uniformly realized.

Description

A lead-acid battery for traction

technical field

The utility model relates to a lead-acid storage battery for plate traction.

Background technique

Lead-acid batteries for traction are widely used in airports, stations, storage, ports, industrial and mining enterprises and other fields. In recent years, due to the rapid development of transportation, air transportation and other industries, the market demand for traction lead-acid batteries has increased year by year, and its role has become increasingly prominent. The traditional traction lead-acid battery is a tubular battery, and the positive electrode active material is confined in the tube through the tube, so that it is not easy to soften and fall off, thereby prolonging the battery life. However, the tubular battery has thick plates, large internal resistance, and low utilization rate of active materials. Therefore, the specific energy and specific power of the battery are low. Moreover, the production cost of the tubular battery is high and the process is complicated.

Contents of the invention

The purpose of this utility model is to overcome the deficiencies of the prior art and provide a lead-acid storage battery for plate traction. On the basis of long life, it can significantly improve the high-current discharge performance of the storage battery, thereby increasing the specific energy and specific power of the storage battery. , and the production cost is low and the process is simple.

The technical scheme provided by the utility model is:

A lead-acid storage battery for plate-type traction, including a positive pole, a negative pole and a pole, as well as an electrolyte, a battery tank and a battery cover; the positive pole is a plate-type positive pole, including a positive plate and a positive plate coated on the outside of the positive plate and sealed Sheath; the positive plate is composed of a positive grid and a positive electrode paste layer combined with the positive grid; the shape of the grid of the positive grid is rectangular, or radial, or a mesh-type rhombus; the negative electrode includes a negative plate And the negative plate separator bag set outside the negative plate; the tabs of the positive plate and the negative plate are side tabs or middle tabs.

Further technical solutions are:

The plate-type traction lead-acid battery has a thickness of 3.2-5.4 mm for the positive plate; a thickness of 3-5 mm for the positive grid; and a single-layer thickness of the positive plate sheath is 0.2-0.6 mm.

In the lead-acid storage battery for plate-type traction, the sealing of the positive plate sheath is mechanical sealing or ultrasonic welding sealing.

In the lead-acid storage battery for plate-type traction, the positive grid is a grid made of lead-antimony alloy wire.

In the lead-acid battery for plate-type traction, the sheath of the positive plate is a polyester bag or a glass fiber bag; the separator bag of the negative plate is a bag made of PE material.

The lead-acid battery for plate-type traction has a hole through which the pole goes through on the battery cover, and there is a sealing ring in the hole; there is also a water filling valve on the battery cover.

The lead-acid battery for traction of the plate type has a bottom bridge at the bottom of the battery tank 4 for keeping the bottom edge of the positive pole and the negative pole at a distance from the bottom of the battery tank.

The technical effect of the utility model is obvious. The positive plate of the traction lead-acid battery is changed from the traditional tubular positive pole to the plate positive pole, which effectively delays the softening and falling off of the active material of the positive pole, reduces the probability of short circuit of the lead fleece, and thus prolongs the life of the battery, which is more than 100% longer than that of the traditional plate-shaped battery . The storage battery meets the high-current discharge working condition, the production process is simplified, and the production cost is reduced. The utility model overcomes the shortcomings of low specific energy and specific power of the tubular battery, has the functional characteristics of large capacity, high power and long life, and realizes the unity of long life and high specific energy of the lead-acid storage battery for traction.

Description of drawings

Fig. 1 is a schematic diagram of the overall structure of the utility model;

Fig. 2 is the utility model positive pole and negative pole structure and relative position schematic diagram;

Fig. 3 is a schematic diagram of the positive electrode structure of the present invention.

In the figure, 1-positive electrode, 1.1-positive electrode plate, 1.11-positive electrode grid, 1.12-positive electrode paste layer, 1.2-positive electrode plate sheath, 2-negative electrode, 2.1-negative electrode plate, 2.2-negative electrode plate separator bag, 3 -pole, 4-battery tank, 5-battery cover, 6-sealing ring, 7-water valve, 8-bottom bridge.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is further described.

Embodiment 1: as shown in Figures 1, 2, and 3, it is a basic embodiment of the present utility model: a lead-acid storage battery for plate traction, including positive pole 1, negative pole 2 and pole post 3, as well as electrolyte and battery tank 4 and a battery cover 5; the positive electrode 1 is a plate-type positive electrode, including a positive plate 1.1 and a positive plate sheath 1.2 coated on the outside of the positive plate 1.1 and sealed; the positive plate 1.1 is composed of a positive grid 1.11 and a positive grid 1.11 Composed of a combined positive electrode paste layer 1.12; the grid shape of the positive grid 1.11 is rectangular, or radial, or a mesh-type diamond; the negative electrode 2 includes a negative plate 2.1 and a negative plate spacer set outside the negative plate 2.1 The plate bag 2.2; the tabs of the positive plate 1.1 and the negative plate 2.1 are side tabs or middle tabs. The positive plate 1.1 has a thickness of 3.2-5.4 mm; the positive grid 1.11 has a thickness of 3-5 mm; the single-layer thickness of the positive plate sheath 1.2 is 0.2-0.6 mm. The sealing of the positive plate sheath 1.2 is mechanical sealing or ultrasonic welding sealing. The positive grid 1.11 is a grid made of lead-antimony alloy wire. The positive plate sheath 1.2 is a polyester bag, or a glass fiber bag; the negative plate separator bag 2.2 is a bag made of PE material. The battery cover 5 has a hole through which the pole 3 passes, and a sealing ring 6 is arranged in the hole; there is also a water filling valve 7 on the battery cover 5 . The bottom of the battery tank 4 has a bottom bridge 8 for keeping the bottom of the positive electrode 1 and the negative electrode 2 at a distance from the bottom of the battery tank 4 .

The thickness of the negative plate 2.1 is generally smaller than that of the positive plate 1.1; the single-layer thickness of the negative plate separator bag 2.2 made of PE material is 0.6-1.55 mm.

Embodiment 2: As shown in Figures 1, 2 and 3, in the above embodiment 1, the grid shape of the positive grid 1.11 is rectangular; the tabs of the positive plate 1.1 and the negative plate 2.1 are side tabs. The thickness of the positive plate 1.1 is 5 mm; the thickness of the positive grid 1.11 is 4 mm; the single layer thickness of the positive plate sheath 1.2 is 0.5 mm. The sealing of the positive plate sheath 1.2 is a mechanical sealing. The positive plate sheath 1.2 is a polyester bag; the negative plate separator bag 2.2 is a PE bag. The thickness of the negative plate 2.2 is smaller than that of the positive plate 1.1; the single-layer thickness of the negative plate separator bag 2.2 made of PE material is 1 mm.

Embodiment 3: The difference from the above embodiment 2 is that the grid shape of the positive grid 1.2 is radial. The grid shape of the positive grid 1.11 is radial; the lugs of the positive plate 1.1 and the negative plate 2.1 are middle lugs. The thickness of the positive plate 1.1 is 5.4 mm; the thickness of the positive grid 1.11 is 5 mm; the single layer thickness of the positive plate sheath 1.2 is 0.6 mm. The sealing of the positive plate sheath 1.2 is an ultrasonic welding sealing. The positive plate sheath 1.2 is a glass fiber bag; the single-layer thickness of the negative plate separator bag 2.2 made of PE material is 1.5 mm.

Embodiment 4: Different from the above embodiment 2, the grid shape of the positive grid 1.2 is . The grid shape of the positive grid 1.11 is an expanded mesh diamond; the thickness of the positive plate 1.1 is 3.2 mm; the thickness of the positive grid 1.11 is 3 mm; the thickness of a single layer of the positive plate sheath 1.2 is 0.2 mm. mm. The sealing of the positive plate sheath 1.2 is an ultrasonic welding sealing. The positive plate sheath 1.2 is a glass fiber bag; the single-layer thickness of the negative plate separator bag 2.2 made of PE material is 0.6 mm.

The protection scope of the claims of the utility model is not limited to the above-mentioned embodiments.

Claims (7)

1. A lead-acid storage battery for plate type traction, characterized in that it comprises positive pole (1), negative pole (2) and pole (3), also has electrolyte, battery tank (4) and battery cover (5); The positive electrode (1) is a plate-type positive electrode, including a positive plate (1.1) and a positive plate sheath (1.2) wrapped and sealed outside the positive plate (1.1); the positive plate (1.1) is composed of a positive grid (1.11) and the positive electrode paste layer (1.12) combined with the positive grid (1.11); the shape of the grid of the positive grid (1.11) is rectangular, or radial, or drawn-net rhombus; the negative electrode (2) includes a negative electrode The plate (2.1) and the negative plate separator bag (2.2) sheathed on the outside of the negative plate (2.1); the tabs of the positive plate (1.1) and the negative plate (2.1) are side tabs or middle tabs. 2. The plate-type lead-acid battery for traction according to claim 1, characterized in that, the thickness of the positive plate (1.1) is 3.2-5.4 mm; the thickness of the positive grid (1.11) is 3-5 mm; The single-layer thickness of the plate sheath (1.2) is 0.2-0.6 mm. 3. The plate-type lead-acid battery for traction according to claim 1, characterized in that the sealing of the positive plate sheath (1.2) is mechanical sealing or ultrasonic welding sealing. 4. The plate-type lead-acid battery for traction according to claim 1, characterized in that, the positive grid (1.11) is a grid made of lead-antimony alloy wire. 5. The plate-type lead-acid battery for traction according to claim 1, characterized in that, the positive plate sheath (1.2) is a polyester bag or a glass fiber bag; the negative plate separator bag (2.2) is made of PE material into the bag. 6. The plate-type lead-acid battery for traction according to claim 1, characterized in that, the battery cover (5) has a hole through which the pole (3) passes, and there is a sealing ring (6) in the hole; (5) also has water adding valve (7) on (5). 7. The plate-type lead-acid battery for traction according to claim 1, characterized in that, the bottom of the battery tank (4) is used to make the bottom edge of the positive pole (1) and the negative pole (2) and the bottom of the battery tank (4) Keep distance from the bottom bridge (8).

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