CN202127073U - Winding type lead-acid battery - Google Patents

Abstract

The utility model discloses a coiled lead-acid battery, which comprises a casing, an end cover, a positive plate, a separator, a negative plate, tabs, a positive terminal, a negative terminal, an electrolyte, an exhaust valve, openings at both ends of the shell, A reel is installed inside, and the positive and negative electrodes, separators, and negative plates are stacked in sequence and then wound several times around the reel. After winding, the outer circumferential wall is wrapped by the extension of the separator; the positive plate and the negative plate respectively have positive ears. , negative tab, the positive tab and the negative tab are respectively connected to the positive terminal and the negative terminal; the housing is placed horizontally, and the positive terminal and the negative terminal are respectively drawn from both ends of the housing; the end cap is sealed at the end of the housing, and the terminal The cover is equipped with an exhaust valve; the electrolyte is fully adsorbed on the positive plate, the negative plate and the separator. The winding lead-acid battery of the utility model not only has the characteristics of large capacity, high specific energy, good vibration resistance, good high-current discharge performance, long service life, etc., but its unique horizontal design makes it very suitable for electric vehicles. .

Description

Wound lead-acid battery

technical field

The utility model belongs to the technical field of battery manufacturing, in particular to a novel winding lead-acid storage battery.

Background technique

Lead-acid batteries are widely used in fields such as energy, communication, electric power, transportation and military affairs. Winding lead-acid batteries have become the best among lead-acid batteries due to their large capacity, high specific energy and long service life. However, due to the low mechanical strength of lead, when the traditional punched lead foil is used as the grid material of the battery, the lead foil is easily damaged during the process of plate making and pasting, resulting in a high scrap rate and indirectly increasing the battery life. manufacturing cost. In addition, when used as a power battery of an electric vehicle, the vertically placed battery brings great inconvenience to its installation in the electric vehicle due to the height restriction.

Contents of the invention

The purpose of this utility model is to provide a new type of winding lead-acid battery, which has the characteristics of large capacity, high specific energy, suitable for fast and deep charge and discharge, anti-vibration, long service life, etc.; at the same time, the battery is placed horizontally , The positive and negative terminals are drawn from both ends of the battery, which takes up less space.

The technical scheme of the utility model is as follows: a winding lead-acid battery, including a shell, an end cover, a positive plate, a separator, a negative plate, tabs, a positive terminal, a negative terminal, an electrolyte, an exhaust valve, two shells The end is open, and a reel is installed inside. The positive and negative electrodes, separators, and negative plates are stacked in sequence and then wound several times around the reel. After winding, the outer peripheral wall is wrapped by the extension of the separator; the positive plate, negative plate The plates correspond to positive and negative tabs respectively, and the positive and negative tabs are respectively connected to the positive terminal and the negative terminal; the housing is placed horizontally, and the positive and negative terminals are drawn out from both ends of the housing respectively; the end cap It is packaged at the end of the casing, and an exhaust valve is installed on the end cap; the electrolyte is fully adsorbed on the positive plate, the negative plate and the separator.

In the wound lead-acid battery, the positive plate and negative plate are respectively made of carbon fiber reinforced lead alloy composite material coated with positive active material and negative active material.

In the wound-type lead-acid battery, the positive plate and the positive tab, the negative plate and the negative tab are respectively stamped from a carbon fiber reinforced lead alloy composite material.

In the wound lead-acid battery, the positive terminal and the negative terminal are respectively welded to the positive tab and the negative tab.

In the wound lead-acid battery, a base is assembled on the outer wall of the housing.

In the wound lead-acid battery, the positive tab and the negative tab are respectively connected to a bus bar, and the two bus bars are respectively welded to the positive terminal and the negative terminal.

The winding type lead-acid battery of the utility model is placed horizontally, and the positive and negative poles are led out from the two ends of the battery respectively, which makes the placement and matching of the battery more flexible, and provides convenience for its use in electric vehicles. The battery has a novel structure, takes up less space, has low battery internal resistance, high specific energy, strong high-current discharge capacity, and long service life, and is very suitable for use in electric vehicles.

The winding type lead-acid battery of the utility model adopts carbon fiber reinforced grid, and its pole plate is easier to wind, and the manufacturing process is good; at the same time, the assembly pressure of the battery can be greater, so that the active material is difficult to fall off, so that the resistance of the battery can be improved. Stronger vibration capacity and longer service life. Since the carbon fiber reinforced grid is lighter and thinner than the ordinary lead foil grid, the contact surface of the active material is increased and the utilization rate of the active material is improved, so the specific energy of the battery is higher.

To sum up, the winding lead-acid battery of the utility model not only has the characteristics of large capacity, high specific energy, good vibration resistance, good high-current discharge performance, and long service life, but its unique horizontal design makes it very suitable for electric Automotive application.

Description of drawings

Fig. 1 is an axial sectional view of the battery of the present invention.

Fig. 2 is a cross-sectional view of the utility model battery

Among them, 1-housing, 2-positive terminal, 3-negative terminal, 4-positive tab, 5-negative tab, 6-separator, 7-positive plate, 8-negative plate, 9-base, 10- Exhaust valve, 11-spool, 12-end cover, 13-positive bus bar, 14-negative bus bar.

Detailed ways

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

As shown in Figure 1, a wound lead-acid battery includes a casing 1, an end cover 12, a positive plate 7, a separator 6, a negative plate 8, a positive tab 4, a positive bus bar 13, a positive terminal 2, and a negative tab. 5. Negative electrode bus bar 14, negative electrode terminal 3, electrolyte, base 9, exhaust valve 10, reel 11, end cap 12, shell 1 is a cylindrical shape with two ends open, and reel 11 is loaded along the middle of its axial direction, and positive electrode Plate 7, separator 6, and negative electrode plate 8 are stacked according to a certain level and then wound several times around the reel 11. After winding, the outer peripheral wall is wrapped by the extension of separator 6 and fixed with a clamp. The electrolyte is fully adsorbed on the positive plate, negative plate and separator.

The positive and negative plates are respectively made of carbon fiber reinforced lead alloy grid, and the tabs are integrally formed when manufacturing the grid. , Negative plate. Positive pole plate 7 and negative pole plate 8 correspond to positive pole lug 4 and negative pole lug 5 respectively. welding.

The battery is placed horizontally, and the positive and negative terminals 2 and 3 are led out from the two ends of the housing 1 respectively. The two ends of the housing 1 are respectively packaged with an end cap 12 , and each end cap 12 is also equipped with an exhaust valve 10 .

The outer wall of the casing 1 is provided with a base 9 for placing the battery horizontally.

The preferred embodiments of the present utility model have been described in detail above. For those of ordinary skill in the art, according to the ideas provided by the present utility model, there will be changes in the above-mentioned specific implementation methods and application ranges, and these changes will also It should be regarded as the protection scope of the present utility model.

Claims (6)

1. Wound lead-acid battery, including casing, end cap, positive plate, separator, negative plate, tab, positive terminal, negative terminal, electrolyte, exhaust valve, characterized in that: the shell is open at both ends , a reel is installed inside, and the positive and negative poles, separators, and negative plates are stacked in sequence and then wound several times around the reel, and the outer peripheral wall is wrapped by the extension of the separator after winding; the positive plate, negative plate The plates correspond to positive and negative tabs respectively, and the positive and negative tabs are respectively connected to the positive terminal and the negative terminal; the housing is placed horizontally, and the positive and negative terminals are drawn out from both ends of the housing respectively; the end cap It is packaged at the end of the casing, and an exhaust valve is installed on the end cap; the electrolyte is fully adsorbed on the positive plate, the negative plate and the separator. 2. The wound lead-acid battery as claimed in claim 1, characterized in that: said positive plate and negative plate are respectively made of carbon fiber reinforced lead alloy composite material coated with positive active material and negative active material . 3. The wound lead-acid battery according to claim 2, characterized in that: the positive plate and the positive tab, the negative plate and the negative tab are respectively stamped from a carbon fiber reinforced lead alloy composite material. 4. The wound lead-acid battery according to claim 1 or 3, wherein the positive terminal and the negative terminal are respectively welded to the positive tab and the negative tab. 5. The wound lead-acid battery according to claim 1, wherein a base is assembled on the outer wall of the casing. 6. The wound lead-acid battery according to any one of claims 1-3, characterized in that: the positive tab and the negative tab are respectively connected to the positive bus bar and the negative bus bar, and the positive bus bar and the negative bus bar are connected to each other. The rows are welded to the positive terminal and the negative terminal respectively.

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