CN115207364A - Novel corrosion-resistant positive grid - Google Patents

Abstract

The invention relates to a new type of corrosion-resistant positive grid, comprising: an upper frame, a lower frame, a side frame, tabs, horizontal bars, and vertical bars. The rhombus has a rhombus structure and the width gradually decreases from top to bottom. The upper transverse bars of the positive grid are full bars, the middle transverse bars are alternately full bars and half bars, the lower transverse bars are half bars, and the upper part of the upper frame is provided with plate ears. The present invention increases the energized cross-sectional structure design by gradually increasing the width of the side frame and the vertical rib. The current density improves the overall corrosion resistance of the grid.

Description

A new type of corrosion-resistant positive grid

technical field

The invention relates to the technical field of storage batteries, in particular to a novel corrosion-resistant positive grid.

Background technique

As a secondary power source for storing energy, lead-acid batteries are widely used in power, communications, power stations, power transmission, instrumentation, UPS power supplies and aircraft, tanks, ships, radar systems and other fields. With the development of the world's energy economy and people's lives With the improvement of the level, the application scope of lead-acid batteries is getting wider and wider. The application scenarios are getting worse and worse. The design life of the positive grid battery designed according to the conventional method cannot meet the standard requirements, the positive grid is corroded, and the function of transmitting current and supporting active materials is lost.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a novel corrosion-resistant positive grid technology to solve the problems raised in the above background technology.

In order to achieve the above purpose, the present invention provides the following technical solutions: a new type of corrosion-resistant positive grid, comprising: an upper frame, a lower frame, a side frame, a pole lug, a horizontal rib, a vertical rib, and the horizontal rib includes: a full rib and a half rib, so The cross-section of the side frame and the vertical bars is a diamond-shaped structure and the width gradually decreases from top to bottom. The upper part of the upper frame is provided with a plate lug.

The current density control range of the vertical bars or horizontal bars is 0.25-0.45A/mm ² , and the current density calculation formula is: ρ=C10/∑S,

Among them: ρ represents the current density, the unit is A/mm ² ; C10 represents the nominal capacity value of the positive plate at a rate of 10 hours, the unit is A; ΣS represents the cross-sectional area sum of the vertical bars or horizontal bars, the unit is mm ² .

Compared with the prior art, the beneficial effects achieved by the present invention are:

1. According to the direction of flow from low to high, increase the energized cross-sectional structure design by gradually increasing the width of the side frame and the vertical rib, reduce the current density, and improve the overall corrosion resistance of the grid;

2. The cross-ribs are distributed in the half-rib-half-rib, half-rib-full-rib, and full-rib structure according to the flow direction from low to high to increase the cross-sectional area of electricity, reduce the current density, and improve the overall corrosion resistance of the grid.

Description of drawings

Fig. 1 is the overall schematic diagram of the present invention;

Figure 2 is a schematic cross-sectional view of a side frame and a vertical rib;

Figure 3 is a schematic cross-sectional view of a full rib;

Figure 4 is a schematic cross-sectional view of a half-rib;

In Figure 1: 1-upper frame; 2-lower frame; 3-side frame; 4-pole ear; 5-horizontal rib; 6-vertical rib, 51-full rib, 52-half rib.

Detailed ways

In order to be able to understand the features and technical content of the present invention in more detail, the implementation of the present invention is described in detail below with reference to the accompanying drawings, which are for reference only and are not intended to limit the present invention.

Referring to Figures 1-4, a new type of corrosion-resistant positive grid includes: upper frame, lower frame, side frame, tabs, transverse ribs, and vertical ribs. The transverse ribs include: full ribs and half ribs. The cross-section of the grid is a diamond structure and the width gradually decreases from top to bottom. The design of the current-carrying cross-section structure is increased, the current density is reduced, and the overall corrosion resistance level of the grid is improved. The upper transverse bars of the positive grid are full bars and the middle transverse bars are full bars. Alternating with half-ribs, the lower transverse ribs are half-ribs, which increase the cross-sectional area of electricity, reduce the current density, and improve the overall corrosion resistance level of the grid. The upper part of the upper frame is provided with plate ears.

The current density control range of the vertical bars or horizontal bars is (0.25-0.45) A/mm2, and the current density calculation formula: ρ=C10/∑S

Among them: ρ represents the current density, the unit is A/mm ² ; C10 represents the nominal capacity value of the positive plate at a rate of 10 hours, the unit is A; ΣS represents the cross-sectional area sum of the vertical bars or horizontal bars, the unit is mm ² .

GFM-500 battery, the nominal capacity C10 of the battery at 10-hour rate is 500Ah, including 10 positive grids, the nominal capacity of a single positive grid at 10-hour rate is C10=500/10=50Ah, the current density range is 0.25-0.45, The calculated area is 111.12-200mm ² .

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, and substitutions can be made in these embodiments without departing from the principle and spirit of the invention and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (2)

1. A novel corrosion-resistant positive grid is characterized by comprising: go up frame, lower frame, side frame, utmost point ear and horizontal muscle, perpendicular muscle, horizontal muscle includes: full muscle and half muscle, the cross-section of side frame and perpendicular muscle is rhombus structure and width from top to bottom gradual change dwindles, the horizontal muscle in upper portion of positive grid is full muscle, and the horizontal muscle in middle part is for full muscle and half muscle are in turn, and the horizontal muscle in lower part is half muscle, go up frame upper portion and be equipped with the board ear.

2. The novel corrosion-resistant positive grid according to claim 1, wherein: the current density control range of the vertical ribs or the transverse ribs is 0.25-0.45A/mm ² 。

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